Concrete Essays & Research Papers

Best Concrete Essays

  • Concrete - 1038 Words
    Concrete is a composite construction material composed primarily of aggregate, cement, and water. There are many formulations, which provide varied properties. The aggregate is generally a coarse gravel or crushed rocks such as limestone, or granite, along with a fine aggregate such as sand. The cement, commonly Portland cement, and other cementitious materials such as fly ash and slag cement, serve as a binder for the aggregate. Various chemical admixtures are also added to achieve varied...
    1,038 Words | 3 Pages
  • Concrete - 813 Words
    Types of Concrete and their Sustainability Concrete was first made with fragments of stone or sand mixed with cementatous materials and water. Concrete has changed over the many years and today it is made with basically the same materials, but the main differences between concrete when it was first made and now, is the concretes strength and that it is produced in larger amounts. Some of the different types are: • Reinforced concrete • Prestressed concrete • Pre-cast concrete •...
    813 Words | 3 Pages
  • Concrete Mixers - Types of Concrete Mixers
    When you want to get a job done in your home or in the yard, it is important to have the right equipment. If you are building a foundation to a home, garage or shed, repairing a sidewalk, or repairing the side of the building, having the right type of concrete mixer can ensure that you will do a job in excellence. There are several tools and types of concrete mixers that can be used to ensure that your job gets done easier. The first type of concrete mixer that you may want to consider using is...
    534 Words | 2 Pages
  • Concrete Mixtures - 451 Words
    CE 4201 (Reinforced Concrete) BSCE-4 November 14, 2012 Assignment #1: Chapter 1(Introduction) 1. Name several admixtures that are used in concrete mixes. What is the purpose of each? Air-entraining admixtures are used to increase concrete’s resistance to freezing (relieves the pressure in concrete) and thawing (results to less cracking) and provide better resistance to the deteriorating action of de-icing salts. Accelerating admixtures are used to reduce curing time and protect...
    451 Words | 2 Pages
  • All Concrete Essays

  • Pretensioning in Concrete - 845 Words
    Essay Title: Pre-Tensioning in Civil Engineering. Introduction : The idea of pre tensioning has been around for centuries and has been applied to many forms, such as: wagon wheels, wooden barrels etc. In these cases heated metal is made to just fit an object. When the metal cools it contracts and induces prestress into the object thereby strengthening it. The idea of pretensioned concrete has been around since the late 19th century, but its use was limited by the quality of materials...
    845 Words | 3 Pages
  • Concrete Block - 15118 Words
    THE EARLY DEVELOPMENTAL HISTORY OF CONCRETE BLOCK IN AMERICA A THESIS SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE MASTER OF SCIENCE IN HISTORIC PRESERVATION BY JAMES P. HALL CHAIRED BY ASSOCIATE PROFESSOR DUNCAN C. CAMPBELL, MSHP BALL STATE UNIVERSITY MUNCIE, INDIANA APRIL 2009 2 THE DEVELOPMENTAL HISTORY OF CONCRETE BLOCK IN AMERICA A THESIS SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENETS For the degree...
    15,118 Words | 61 Pages
  • Concrete Admixture - 501 Words
    CONCRETE ADMIXTURE Concrete admixture refers to the substance mixed in concrete according to different requirements to improve the performance of concrete. The mixing amount is generally no more than 5% of the cement mass (except special cases). Based on the main functions, admixtures mainly contain: • Water-reducing Agent It refers to the admixture used for reducing water consumption and strengthening functions when the slump degrees of mixtures are basically the same. By raw materials...
    501 Words | 2 Pages
  • Concrete and Mold - 1123 Words
    Procedure for mixing concrete 1. Weigh out the designed proportions for a 1.6 cubic foot batch of concrete. a. Divide the water into two buckets, one with about 3/4 of the water. If using air entraining, put the air entraining agent in the 3/4 water bucket. 2. Put about half the coarse aggregate, half the fine aggregate and the 3/4 bucket of water with air entraining in the mixer. 3. Start the mixer and mix until the aggregate is thoroughly wet 4. Carefully add all the cement with the...
    1,123 Words | 4 Pages
  • prestressed concrete - 3059 Words
    PRESTRESSED CONCRETE The development of early cracks in reinforced concrete due to incompatibility in the strains of steel & concrete was perhaps the starting point in the development of new material like “Prestressed Concrete”. Prestressed Concrete is a method for overcoming concrete’s natural weakness in tension. INTRODUCTION Prestressed Concrete is basically concrete in which internal stresses of suitable magnitude & distribution...
    3,059 Words | 14 Pages
  • Concrete repair - 1242 Words
    Cracks and Repairs R.C.C. Structures Tool Kit for Engineers 4.10/ P/ 1 Cracks in building • Structural cracks – due to incorrect design – faulty construction – Overloading • Non Structural cracks – – – – – – – Moisture changes Thermal movement Elastic deformation Creep Chemical reaction Foundation movement and settlement of soil Vegetation Tool Kit for Engineers 4.10/ P/ 2 Non Structural cracks: Moisture Changes Building materials expand on absorbing...
    1,242 Words | 10 Pages
  • Concrete Structures - 6070 Words
    COVER SHEET Kajewski, Stephen (2005) Multilevel Formwork Load Distribution with Posttensioned Slabs. Journal of Construction Engineering and Management 131(2):pp. 203-210 Copyright 2005 American Society of Civil Engineers Accessed from: https://eprints.qut.edu.au/secure/00003700/01/CO-2003022775_Manuscript.pdf Multi-Level Formwork Load Distribution with Post-Tensioned Slabs By Dr Stephen L Kajewski1 Abstract: Formwork and the associated shoring represent a significant proportion...
    6,070 Words | 28 Pages
  • Prestress Concrete - 6269 Words
    7166M01.qxd_lb 6/3/09 09:38 AM Page 1 1 BASIC CONCEPTS 1.1 INTRODUCTION Concrete is strong in compression, but weak in tension: its tensile strength varies from 8 to 14 percent of its compressive strength. Due to such a low tensile capacity, flexural cracks develop at early stages of loading. In order to reduce or prevent such cracks from developing, a concentric or eccentric force is imposed in the longitudinal direction of the structural element. This force prevents the...
    6,269 Words | 52 Pages
  • Concrete Technology - 1367 Words
    www.jntuworld.com www.android.jntuworld.com www.jwjobs.net Code No: R31013 R10 Set No: 1 III B.Tech. I Semester Regular Examinations, November/December - 2012 CONCRETE TECHNOLOGY (Civil Engineering) Time: 3 Hours Max Marks: 75 Answer any FIVE Questions All Questions carry equal marks ***** Assume missing data suitably 1. (a) Describe the oxide composition of Ordinary Portland Cement. (b) What are the main compounds into which the above oxides will transform in the process of...
    1,367 Words | 7 Pages
  • Concrete Admix - 8546 Words
    Designation: C 494/C 494M – 99ae1 Standard Specification for Chemical Admixtures for Concrete1 This standard is issued under the fixed designation C 494/C 494M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved...
    8,546 Words | 24 Pages
  • Polymer Concrete - 8464 Words
    POLYMER COCNCRETE 1. Introduction Despite being thought of as a modern material, concrete has been in use for hundreds of years. The word concrete comes from the Latin concretus, which means “mixed together” or compounded. Concrete is an extremely popular structural material due to its low cost and easy fabrication. Concrete is made up of sand or stone, known as aggregate, combined with cement paste to bind it. Aggregate can be of various sizes. It is broadly categorized as fine...
    8,464 Words | 27 Pages
  • Polymer Concrete - 2775 Words
    PAPER PRESENTATION ON By T.V.M. Akhilash Guptha Email: akil_chari@yahoo.co.in F a a o D E O g n ee in .c rs m o B. Nareen Kumar nareen_rathode2007@yahoo.com 2 ABSTRACT: In Concrete Technolgy there are many types of Concretes here we are mainly discussing about Polymer Concrerte. Polymer concrete is a composite material. A graded mixture coarse and fine aggregates bound together by an appropriate organic resin system. Polymer concrete is a relatively low-cost...
    2,775 Words | 17 Pages
  • Precast Concrete - 2297 Words
    PRECAST CONCRETE STRUCTURES VISVODAYA ENGINEERING COLLEGE DEPARTMENT OF CIVIL ENGINEERING KAVALI-524201 PAPER PRESENTATION BY Author 1: Author 2: D.chanikya , Ch.Lokesh...
    2,297 Words | 11 Pages
  • Concrete Mix - 439 Words
    BRE Concrete mix design method A popular simplified mix design method is that from BRE. Compressive strength is, in general, related to durability. The greater the strength the more durable the concrete. To satisfy the required compressive strength, a value for water/cement (w/c) ratio is estimated for an appropriate test age (generally 28 days) and cement type. Tables in the BRE mix design handbook are consulted relating aggregate:cement (a/c) ratio, workability and water:cement (w/c) ratio...
    439 Words | 2 Pages
  • geopolymer concrete - 4778 Words
    Geopolymer From Wikipedia, the free encyclopedia Jump to: navigation, search Geopolymers are new materials for fire- and heat-resistant coatings and adhesives, medicinal applications, high-temperature ceramics, new binders for fire-resistant fiber composites, toxic and radioactive waste encapsulation and new cements for concrete. The properties and uses of geopolymers are being explored in many scientific and industrial disciplines: modern inorganic chemistry, physical chemistry, colloid...
    4,778 Words | 11 Pages
  • Foam Concrete - 3067 Words
    Foam concrete advantages Foam Concrete is normal concrete with bubbles of air inside. Therefore it has the same characteristics with many additional advantages. CLC (foam concrete) blocks are used for building cottages, wall insulation in multistory buildings and internal partitions. Also CLC can be produced and poured for floors and roofs on-site. In roofs it can be used because of very good insulating and lightweight. For floors CLC offers faster installation and a less expensive option...
    3,067 Words | 10 Pages
  • hvfa concrete - 445 Words
    High Volume Fly Ash Concrete(HVFC) INTRODUCTION Concrete is the most commonly used construction material; its usage by the communities across the globe is second only to water. Customarily, concrete is produced by using the Ordinary Portland Cement (OPC) as the binder. The usage of OPC is on the increase to meet infrastructure developments. The world-wide demand for OPC would increase further in the future. It is well-known that cement production depletes significant amount of natural...
    445 Words | 2 Pages
  • Concrete Testing - 519 Words
    Concrete and Steel Testing BIP Geotechnical and Material Testing Engineers and Water Supply Bakakeng, Baguio City In the construction, it is better to know the strength of concrete and steel to be used especially in a high rise building. Our Laboratory No. 1 for this Midterm is to determine the slump of freshly concrete mixed with Portland cement concrete, the strength and the mixtures of the concrete. July 27, 2012, we performed our laboratory. We the second group, use crushed...
    519 Words | 2 Pages
  • Concrete Lab - 880 Words
    A H M 531 The Civil Engineering Center Objectives: To measure the mechanical stre ngth of cement by applying Compressive and Tensile tests on Cement-Sand mortar. Standards: ¾ Compressive strength of cement using mortar cubes: B.S.12 – Part 2 ASTM : C 109 ¾ Tensile strength of mortar using briquettes: B.S.12 – Part 2 ASTM : C 109 General Discussion: In these tests (Compressive and Tensile tests) we measured the mechanical strength of the hardened cement. These tests are done on...
    880 Words | 5 Pages
  • Prestressed Concrete - 2901 Words
    Prestressed concrete construction Prestressed concrete Prestressed concrete is a method for overcoming concrete's natural weakness in tension. It can be used to produce beams, floors or bridges with a longer span than is practical with ordinary reinforced concrete. Prestressing tendons (generally of high tensile steel cable or rods) are used to provide a clamping load which produces a compressive stress that balances the tensile stress that the concrete compression member would...
    2,901 Words | 11 Pages
  • Compaction of Concrete - 470 Words
    Consolidation of plastic concrete is termed as compaction. In the process of compaction, efforts are only directed to reduce the voids in the compacted concrete. Compaction of concrete can be done either manually or mechanically. When it is done manually it is called hand compaction or tamping, and in second case it is termed as machine compaction.  Hand compaction: Hand compaction is done with the help of steel tamping rods, or timber screeds. Marrow and deep members are compacted with...
    470 Words | 2 Pages
  • concrete technology - 12395 Words
    TOPIC 1: CONCRETE MATERIALS AND MIXTURE 1.0 INTRODUCTION TO CONCRETE Concrete is an important building material and popularly used in construction today. Its because the charecteristic that concrete has fulfil the criteria that needed in ensuring it is suitable being used in any condition and situation. 1.1 Definition of Concrete Concrete is the product of the mixture of cement, aggregate, sand and water. These materials being mixed according to their design composition/proportion...
    12,395 Words | 49 Pages
  • concrete technology - 5255 Words
    “PROBLEMS IN READY MIX CONCRETE” A PROJECT REPORT Submitted by MISTRY UMANG 100393106006 VARSHA RAJPUT 100393106001 In fulfilment for the award of the degree of BACHELOR OF ENGINEERING in Civil Engineering S.P.B. Patel Engineering College, Mehsana Gujarat Technological University, Ahmedabad December, 2012 CERTIFICATE Date: This is to certify that the dissertation entitled “PROBLEMS IN READY MIX CONCRETE” has been carried out by...
    5,255 Words | 25 Pages
  • Mixing of Concrete - 483 Words
    After various ingredients of concrete are proportioned, the next operation is their mixing, the mixing process should ensure homogeneous mass uniform in colour, and segregation should not take place during mixing operation. There are two methods of mixing the concrete:  Hand mixing: Hand mixing is adopted where quantity of concrete is very small. It can also be adopted where machine for mixing is not available or where noise is not desirable. Cement and sand are first of all mixed dry on a...
    483 Words | 2 Pages
  • concrete mixer and concrete batching plant in China
    Model JDC350(Gear-driven) JDC500(Gear-driven) JDY350(Hydraulic) JDY500(Hydraulic) Discharging Volume 350L 500L 350L 500L Charging Volume 560L 800L 560L 800L Max.aggregate size 60/40mm 80/60mm 60/40mm 80/60mm Capacity 17.5m3/h 25~30m3/h 18~21m3/h 25~30m3/h Mixing blades rotating-speed 27.6r/min 27.6r/min 28r/min 24r/min Motors power 15kw 18.5kw 19.55kw 27.75kw Mixing time 30s 30s 30s 30s Dragging 20km/h 18km/h 20km/h 18km/h Total weight 3700kg...
    1,432 Words | 22 Pages
  • Concrete Reparation Method - 389 Words
    Method Statement for Repair of Reinforced Concrete 1. Concrete Evaluation A. Color-twine-thread or permanent-marker to mark out defects area for honey-cone or non-aligned structures due to poor workmanship. B. Grinder cut-out / Breaker hack-out cautiously the surface / over-cast structure to the solid concrete / proper alignment. C. Remove debris and clean the surface. D. According to the condition ( width, length. depth of area) after hacking work, use the following...
    389 Words | 2 Pages
  • HPC High Performance Concrete
    1.0 Introduction Curing gives huge impact to all of the concrete in a structure because its will affects the strength and the durability of the concrete. 1.1 Background High Performance Concrete (HPC) is designed to be stronger on durability than the ordinary or conventional concrete. The optimum of high strength of HPC can be achieved by selecting and controlling the materials and ingredients when doing the mix design of the HPC which include the proportion of water, mineral admixture,...
    1,875 Words | 8 Pages
  • concrete technology cc203 - 3940 Words
    DIPLOMA KEJURUTERAAN AWAM SEMESTER 2 ( JUN 2013 ) CC203-CONCRETE TECHNOLOGY AHLI KUMPULAN NAMA TAJUK CONCRETE MATERIALS AND MIXTURE NAMA PENSYARAH KELAS CONTENT PAGES INTRODUCTION 1 BASIC PROPERTIES OF CONCRETE 2-5 BASIC KNOWLEDGE OF CEMENT 6-9 STORAGE METHODS OF CEMENT 10-12 FINE AGGREGATES AND COARSE AGGREGATES 13-14 PROPERTIES OF WATER USED IN CONCRETE MIXTURE 15-19 BASIC CONCEPT OF CONCRETE MIX 20 FRESH CONCRETE 21-23 ROLE OF...
    3,940 Words | 17 Pages
  • concrete mixing equipment,concrete batching plant equipment
    In the process of the adjustment of concrete batching plant standard industry, the first step is to eliminate the production technologies and production equipment which cannot meet the requirements of building materials market. The reason why the concrete mixing equipment manufacturers cannot keep pace with market requirement does not lie in the manufacturers. On the one hand, for a long time, there exists to be a disjointed phenomenon between production and engineering application. On the...
    931 Words | 3 Pages
  • The Improvement of Concrete Mixing technology of Sicoma Concrete Mixer
    9. Structural members are durable, and most electric elements adopt world famous brands.Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:concrete pumps,diesel concrete mixer,We will provide you with the best product and service. 8. Human-based intelligent control facilitates the operation greatly. 7. With its virtue of precise...
    586 Words | 2 Pages
  • _x000C_Formwork for Concrete Structures - 77431 Words
    Formwork for Concrete Structures About the Authors Robert L. Peurifoy (deceased) taught civil engineering at the University of Texas and Texas A&I College, and construction engineering at Texas A&M University and Oklahoma State University. He served as a highway engineer for the U.S. Bureau of Public Roads and was a contributing editor to Roads and Streets Magazine. In addition to authoring the McGraw-Hill publications Construction Planning, Equipment, and Methods and Estimating...
    77,431 Words | 260 Pages
  • Testing of Hardened Concrete - 3907 Words
    Part B: Testing of hardened concrete 1. Objectives: The objective of the hardened concrete test was to determine the compressive and indirect tensile strength. On the other hand, this experiment was also used to examine the effect of curing condition on strength of concrete, the influence of specimen shape on compressive strength, the effect of compaction on compressive strength and this experiment was also to examine the effect of increasing water to cement ratio on compressive and in...
    3,907 Words | 13 Pages
  • Aggregates used in concrete - 1329 Words
    Aggregates is a major part of concrete, it is of urgent need that we look into the influence of aggregate on the fresh as well as hardened properties of concrete. Better grading of aggregate not only will show better results in the properties of the concrete but will also help in saving expensive materials such as cement, fly ash and admixture. ​ In the comparative study of influence of the aggregate on high strength concrete, here is an attempt to study strength characteristics of cubes and...
    1,329 Words | 4 Pages
  • Self Compacted Concrete - 3853 Words
    Shamsad Ahmad, Abul Kalam Azad, and Mohammed Abdul Hameed A STUDY OF SELF-COMPACTING CONCRETE MADE WITH MARGINAL AGGREGATES Shamsad Ahmad∗, Abul Kalam Azad, and Mohammed Abdul Hameed Department of Civil Engineering King Fahd University of Petroleum & Minerals Dhahran, Saudi Arabia 1. INTRODUCTION Self-compacting concrete (SCC), developed first in Japan in the late 1980s, represents one of the most significant advances in concrete technology in the last two decades. SCC was developed to...
    3,853 Words | 12 Pages
  • Floating Concrete Structures - 15857 Words
    VSL FLOATING CONCRETE STRUCTURES EXAMPLES FROM PRACTICE SECOND PRINTING JULY 1992 VSL INTERNATIONAL LTD. Berne / switzerland Table of contents Page 1 Preface 1. Introduction 1 2. VSL Systems and Service Range 4 2.1. 2.1.1. 2.1.2. 2.1.3. 2.1.4. 2.1.5. 2.2. VSL Systems Introduction VSL Post-tensioning VSL Slipforming VSL Heavy Lifting Other VSL Systems Services offered by VSL 4 4 4 5 5 6 6 3. Examples from Practice 7 3.1. Introduction 7 3.2. 3.2.1. 3.2.2. 3.2.3. 3.2.4. 3.2.5....
    15,857 Words | 82 Pages
  • Thesis on Ready Mix Concrete
    CHAPTER ONE INTRODUCTION 1.1 An overview Concrete is widely used in construction work. In Bangladesh cast at site concrete is generally used in most in construction work. But in the developed countries Ready Mix Concrete (RMC) had been using since long before. Though this technology is new in Bangladesh, its uses are increasingly being practiced in the country. A few companies in Dhaka and Chittagong are manufacturing Ready mix concrete for construction; CONCORD Ready Mix Concrete...
    4,825 Words | 24 Pages
  • Concrete and Stanchion Base Foundation
    A TECHNICAL REPORT ON STUDENTS INDUSTRIAL WORK EXPERIENCE SCHEME (SIWES). UNDERTAKEN AT DEFINITE STROKES NIGERIA LIMITED, SUITE 112, ANBEEZ PLAZA, PLOT 2121, NDOLA SQUARE, WUSE ZONE 5, ABUJA, F.C.T. NIGERIA AND HABITAT ASSOCIATES PLOT 678, USUMA STREET, MAITAMA, ABUJA, F.C.T. NIGERIA BY OYEBODE OLUWASEYI O. ARC/08/4039 SUBMITTED TO THE DEPARTMENT OF ARCHITECTURE FEDERAL UNIVERSITY OF TECHNOLOGY, AKURE, ONDO STATE, NIGERIA. IN PARTIAL...
    8,151 Words | 28 Pages
  • Modern Concrete Technology - 2523 Words
    Building with concrete: New Impulses Andreas Gabriel The advancement of construction materials and applications has, time and time again, enriched the architectural discipline. Particularly building with concrete has often changed due to innovations in construction technology. Examples include Renzo Piano's continuation of Pier Luigi Nervi's ferrocement research, leading to the delicate daylight control louvres in the Menil Museum in Houston, or recent re-interpretations of pre-stressing,...
    2,523 Words | 8 Pages
  • Self Compacting Concrete - 2873 Words
    ABSTRACT Concrete has been the most preferred construction material for over five decades. It is being increasing day to day all over the world due to its versatility, mould ability, high compressive strength and many more advantages. For several years beginning in 1983, the problem of the durability of the concrete structures was a major topic of interest in Japan. The creation of durable concrete structures requires adequate compaction by skilled workers. One solution for the achievement of...
    2,873 Words | 9 Pages
  • Steel Fiber Reinforced Concrete
    STEEL FIBER REINFORCED CONCRETE INTRODUCTION: Compared to other building materials such as metals and polymers, concrete is significantly more brittle and exhibits a poor tensile strength. Based on fracture toughness values, steel is at least 100 times more resistant to crack growth than concrete. Concrete in service thus cracks easily, and this cracking creates easy access routes for deleterious agents resulting in early saturation, freeze-thaw damage, scaling, discoloration and steel...
    2,870 Words | 9 Pages
  • Electrically conductive concrete - 5461 Words
     1. INTRODUCTION Concrete is a widely used building material, many concrete pavements such as bridge deck, highway pavements and airfield runways are constructed all over the world, due to its superior properties such as high strength, good stability, abrasion resistance and anti-slippage. However, concrete is a poor electrical conductor, especially under dry conditions. Concrete that is excellent in both mechanical and electrical conductivity properties may have important applications in...
    5,461 Words | 20 Pages
  • Corrosion In Reinforced Concrete Paper
     Corrosion in Reinforced Concrete Sumit Bansal#1, Samarth Garg#2, Rahul Shahdeo#3 Dept. of Civil Engineering, Manipal Institute of Technology, Manipal University ABSTRACT In recent years, the corrosion of steel reinforcement has become a major problem in the construction industry. Corrosion of reinforcement has been established as the predominant factor causing widespread premature deterioration of concrete construction worldwide. It is one of the major durability...
    1,953 Words | 6 Pages
  • Refractory Concrete Material - 1931 Words
    Refractory Concrete Tutorial - Recipe and Instructions Mixing heat resistant mortar without using a concrete mixer Heat resistant refractory concrete There are two ways, two types of heat resistant concretes that can be prepared. Cheaper and more expensive - stronger and weaker. The first one is a high heat refractory concrete. This type will survive in real high heat and can be used in hot-face (What is hot face? Hot face is a wall facing the main heat from a source. Internal walls, floor...
    1,931 Words | 6 Pages
  • commpaction of concrete by ranchhod - 2060 Words
    MECHANICAL COMPACTION OF CONCRETE: A GOVERENING FACTOR FOR DURABILITY AND SERVICEABILITY OF THE CONCRETE Ranchhod Mata1, Prof. Jayeshkumar Pitroda2, Prof. J. J. Bhavsar3 1Student of first year M.E (C.E & M), B.V.M Engineering College, Vallabh Vidyanagar 2Assistant Professor and Research Scholar, Civil Engineering Department, B.V.M. Engineering College, Vallabh Vidyanagar-Gujarat-India 3Associate Professor and PG Coordinator (M.E C E & M), Civil Engineering Department, B.V.M. Engineering...
    2,060 Words | 8 Pages
  • Corrosion of Reinforced Concrete - 2000 Words
    Corrosion of reinforced concrete Contents 1. Introduction 3 2. Corrosion 3 2.1 Chloride attack 4 2.2 Carbonation 5 3. Minimising corrosion 6 3.1 Metallic coatings 6 3.2 Cathodic protection 7 3.3 Other solutions 8 4. Conclusion 8 References 10 List of Figures 2.1 Chloride attack on reinforced concrete…………………………………………....4 2.2 Carbonation attack of RC due to poor concrete cover…………………………….5 3.1 How impressed current cathodic protection stops...
    2,000 Words | 8 Pages
  • Sop Concrete Block - 560 Words
    Ref No | 1993/123 | Date | 16 April 2013 | Page No. | 1 | Title: Standard Operating Procedures of Making a Concrete Block. | Department/ Unit: | This Standard Operating Procedures has been done by Department of Production and Manufacturing of Concrete Block | Purpose: | The purpose of this Standard Operating Procedures of making a concrete block is to provide instructions in order to manufacture a concrete block. | Who can perform this SOP: | Skilled worker technician. |...
    560 Words | 3 Pages
  • Concrete in Roman Architecture - 1894 Words
    Imperial Rome began under Caesar Augustus around 37 BCE and ultimately ended in 1453 when the city was sacked by the Ottoman Turks. When the Roman Empire began, it coexisted with many other prominent civilisations, such as the Etruscans, the later Egyptian dynasties and perhaps Rome's biggest architectural rival, the Ancient Greeks. However the Romans surpassed their rival civilisations architecturally, by extending their influence well into the next millennia, and in doing so they absorbed...
    1,894 Words | 5 Pages
  • Low Cost Concrete - 2944 Words
    e ngine e ringcivil.co m http://www.engineeringcivil.co m/experimental-investigatio n-in-develo ping-lo w-co st-co ncrete-fro m-paper-industrywaste.html#mo re-1149 Experimental Investigation In Developing Low Cost Concrete From Paper Industry Waste ABST RACT Over 300 million tones of industrial wastes are being produced per annum by chemical and agricultural process in India. T hese materials pose problems of disposal and health hazards. T he wastes like phosphogypsum, f luorogypsum and red mud...
    2,944 Words | 9 Pages
  • Aac (Autoclave Aerated Concrete)
    Autoclaved aerated concrete (AAC, Aircrete) PrevNex 123 • cesta.01.kaushal • On May 2, 2013 • ATTR :. 8 mins. Comments/Notes :. Video is Nice In Nepal it is provided by united concrete. IPOS:. >AAC are very the future building materials >They are also available in Nepal Courtesy :. >http://www.understanding-cement.com/autoclaved-aerated-concrete.html >http://www.youtube.com/watch?v=empEMs-2zmA Edit Autoclaved aerated concrete is a versatile lightweight construction...
    385 Words | 2 Pages
  • Terms and terminologies in prestressed concrete
    ADVANTAGES AND DISADVANTAGES OF PRESTRESSED CONCRETE ADVANTAGES : Use of high strength concrete and freedom from cracks, in prestressed members, contribute to improved durability under aggressive environmental conditions. The use of high strength concrete and high tensile steel in prestressed concrete members results in lighter and slender members than could be possible by using reinforced concrete and Mild steel as reinforcement. In prestressed concrete, steel is no longer required for...
    1,661 Words | 7 Pages
  • Concrete Lab Report - 1084 Words
    Engineering B45 Concrete Lab Report Introduction: Concrete is a mixture of sand and rock or similar inert material (aggregates) held together by a cementing material. Usually the cementing material is Portland cement, but sometimes binders such as asphalt or gypsum are used, in which case the concrete may be called asphaltic concrete or gypsum concrete. Properties of concrete are governed not only by the properties of its ingredients (cement, water, sand, and coarse aggregate) but also, to a...
    1,084 Words | 3 Pages
  • Importance of Durability of Concrete - 1198 Words
    Magan Agarwal Binani Cement Limited Key factors that control the compatibility between Naphthalene-based super plasticizers and ordinary Portland cements Synopsis: Super plasticizers improve the workability of concrete at low water cement ratio but this workability is sometimes lost rapidly in the first hour after contact between the cement and water. This is especially the case for naphthalene-based and melamine-based superplasticizers when used with the so called incompatible cements....
    1,198 Words | 4 Pages
  • compare between concrete and steel
    How do concrete and steel compare in the construction of large commercial buildings? Office buildings, Hotels, Sports Complexes, and other buildings have the purpose of bringing people inside. The goal is to keep occupants comfortable and safe, while keeping the cost associated withe the construction and maintenance of the building low. Both materials have advantages and disadvantages. However, when it comes right to it, the differences between the tow materials balance themselves out . There is...
    918 Words | 3 Pages
  • Concrete and Following Statements - 1621 Words
    1. Which of the following statements regarding fire-retardant treatment of wood is MOST accurate? A. the fire retardant is intended to occur at temperatures lower than those developed in fires. B. the fire retardant is intended to occur at temperatures higher than those developed in fires C. all chemicals used as fire retardants can be used for exterior applications D. fire retardant treatment of wood increases its strength 2. Most fire-retardant chemicals operate by: A. accelerating the...
    1,621 Words | 6 Pages
  • Concrete Cube Compressive Strength
    Experiment No : 5 Title : Concrete Cube Compressive Strength (7 days) Introduction : To determine the strength, maximum load can be applied and workability of concrete mixture. Theory : Hard concrete test were conducted at the age of 3, 7, 14, 21 and 28 days after curing(but we tested it for 7 days only). The concrete strength increases according to the age,the mixture of its concrete design and the strength increment will continue for sometimes. Nevertheless, for most of the work,...
    1,186 Words | 5 Pages
  • Roman Pozzolanic Concrete - 680 Words
    Randall Hostetter History 135: World Civilization Dr. Ian Wendt August 17, 2011 Roman Pozzolanic Concrete The Roman Empire has contributed a wide variety of knowledge, ideas and technology to the world. These include novel concepts regarding the legal system, Roman numerals, architecture and the Roman calendar. However, the development of concrete as a building material is not the first thing that comes to mind when considering the Roman contributions to civilization. While the use of...
    680 Words | 3 Pages
  • Fibre Reinforced Concrete - 1834 Words
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  • High Performance Concrete - 485 Words
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  • Proportioning of Concrete Ingredients and Mixes
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  • Concrete Mix Design - 1118 Words
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  • Concrete Super plasticizer Market
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  • investigation of low cost concrete
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  • Brief Introduction of Concrete Mixer
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  • concrete mix design - 1900 Words
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  • Factors Affecting Properties of Concrete
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  • Non-Destructive Testing of Concrete
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  • Compressive, Flexural, and Tensile Strength of Concrete
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  • The Advanced Technology of Henan Concrete Mixer
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  • A Practical Equation for Elastic Modulus of Concrete
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  • A Brief Study of Ready-Mix Concrete
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  • Reinforced Concrete and Jack Pile Underpinning
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  • Essentials of Clay and Concrete Roof Tiles
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  • Thin Shell Concrete Design and Construction
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  • The composition analysis of concrete mixing plant
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  • Strengh Assessment of Self Curing Concrete
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  • The concrete mixing industry is affected by environment
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    709 Words | 2 Pages
  • Comparison of Pre-Stressed Concrete, Partially Pre-Stressed Concrete and Reinforced Concrete in Terms of Different Aspects
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  • The status of concrete batching plant is unshakable
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  • Lab Report on Reinforced Concrete Design
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    1,463 Words | 6 Pages
  • Concrete mixer pump is a new hope for concrete mixing field
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  • Ensuring the mixing quality of concrete is critical
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    279 Words | 1 Page
  • The Method to Choose the Concrete Mixing Plant
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    408 Words | 2 Pages
  • Working Principle of Concrete Batching Plant
    A concrete batching plant, also known as a concrete mixing plant, is a device that combines various ingredients to form large amount of concrete. It can have a variety of parts and accessories, including but not limited to: mixers, cement batchers, aggregate batchers, conveyors, radial stackers, aggregate bins, cement bins, heaters, chillers, cement silos, batch plant controls, and dust collectors (to minimize environmental pollution). Next, we will talk about how these accessories work together...
    291 Words | 1 Page
  • Economy of Using Fly Ash in Concrete
    ABSTRACT Fly Ash is a supplementary cementitious material (because of its pozzolanic character) for cement concrete. It is widely available and technically highly useful product. The cement contents, Fly Ash Concrete are more durable; actually durability level of Fly Ash Concretes can not de achieved in cement concretes. These aspects, besides, various benefits of usage of fly ash in cement concrete are discussed in this paper. It is concluded, based on the available information, that there...
    3,452 Words | 10 Pages
  • Concrete Pump Machine Has Popularity in South Africa
    JZC series concrete mixers also named Drum Concrete Mixer. They are portable concrete mixers in work site. JZC series cement mixers are applicable to the small construction project concrete mixer, used for the variety of concrete production portable concrete mixer, mortar and grout.Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:block...
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  • Which Diesel Concrete Mixer is More Power Saving
    Concrete mixing station refers to the configuration of a variety of raw materials required for the preparation of concrete hopper, feed ingredients, mixing and control devices, a variety of aggregate, adhesives, admixtures, additives and water at a certainratio through the mixer, the the concentrated fresh concrete mixing supply complete sets of equipment for the production of concrete.Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research,...
    936 Words | 3 Pages
  • Study on the effect of Rheology on the Compressive Strength of Concrete
    Chapter 1 INTRODUCTION 1.1 Background of the study Concrete is widely used in constructing buildings, houses and other structures, but in order to have a strong structure there are factors to be considered. One of which is compressive strength, this is important to the structure especially if it is a high rise building and will be used commercially. The compressive strength of a concrete is important especially to the column of a structure because it resists compression force. Columns must...
    8,393 Words | 30 Pages

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