Unicon Concrete Products (H.K.) Ltd. Submitted by – Hardik Panchal (103710743) Introduction: Unicon manufactured precast concrete products which mainly consisted of four main products which were: facades‚ slabs‚ stairs and partitioning walls. These products were used in construction of large‚ high residential‚ offices and
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prestressed and partially stressed concrete. These concrete reinforcing methods differ in the period they have been used. Reinforced concrete was developed by a nursery owner in Paris in 1867‚ Joseph Monier‚ applying it to practical use for the first time (Salmon & Wang‚ 2007). Prestressed concrete’s discovery dates back to the late 1800’s. Freyssinet was one of the first engineers who used this method and realised that‚ for this method‚ high quality concrete with very high tensile steel wires
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and Innovative Technology (IJESIT) Volume 2‚ Issue 1‚ January 2013 Investigation of Low Cost Concrete Using Industrial Waste as Supplementary Cementitious Materials JayrajVinodsinhSolanki1‚ Jayeshkumar Pitroda 2 Student of final year M.E. C E & M‚ B.V.M. engineering college‚ Vallabh Vidyanagar 2 Assistant Professor & Research Scholar‚ Civil Engg Department‚ B.V.M. Engineering College‚ Vallabh Vidhyanagar. 1 Abstract-This experimental investigation on strength of concrete and optimum percentage
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Benefits Of Choosing Stamped Concrete For Your Patio A plain concrete slab is the typical patio material‚ so if you want something a little more upscale‚ you may start to look at pavers or natural stone. However‚ there’s one option you don’t want to overlook‚ and that’s stamped concrete. It pours on like a concrete slab‚ but it looks just like more expensive stone. Here are some of the benefits of installing a stamped concrete patio. Lower Cost Slate and other stone materials are expensive. They
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Ingredients for concrete are cement‚ fine aggregate‚ coarse aggregate and water. The best concrete can be obtained by mixing the ingredients in correct proportions. The ideal proportion of concrete will be that‚ which produces greatest strength and solidity at the least cost. In estimating the quantities of ingredients for cement concrete it should keep in mind that voids of coarse aggregates are filled up by sand and voids of fine aggregates are filled up by cement. The concrete mix of 1: 1: 2 and
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Concrete is a composite product obtained artificially by hardening of mixture of cement‚ sand‚ gravel and water in pre-determined proportions. When these ingredients are mixed‚ they form a plastic mass which can be moulded in desired shape. It gets hardened into hard solid mass. Water is one of the important ingredients of concrete. This is required not only for chemical reaction‚ but also for curing purposes. The chemical reaction of cement and water‚ in the mix‚ is relatively slow and requires
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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 corrosion ……………………
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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‚ the concrete strength on
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Some of them of the great things that they have built include; concrete‚ roads and arches. With these inventions and several more‚ the Romans have changed the art of buildings for ever. Without it the world would not be the same‚ and it would affect our world forever. One of the first inventions that the Romans made‚ was concrete. Concrete was used to be made as a glue like substance for building structures. The Roman concrete was made of lime‚ seawater and volcanic ash. According to the Article
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Non-destructive Testing Of Concrete By Rebound Hammer By Kaushal Kishore Materials Engineer‚ Roorkee INTRODUCTION The standard method of determining strength of hardened concrete consists of testing concrete cubes in compression. The quality of entire concrete of a structure cannot be fully assessed by testing a few concrete cubes. The results obtained in testing cubes do not always reflect the actual strength of concrete in construction. In a whole day‚ concreting work cubes are cast in
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