Use of Plastic Waste on Road Construction

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  • Topic: Brick, Thermal insulation, Concrete
  • Pages : 9 (1226 words )
  • Download(s) : 132
  • Published : March 20, 2013
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Comparison With Bricks|
No. | Parameter| AAC Block| Brick|
1| Size (L x H x B)| 60cm x 20cm x 10 - 30 cm| 23cm x 7.5cm x 11.5cm| 2| Precision in size| Variation 1.5 mm (+ /-)| Variation 5mm(+/-)| 3| Compressive Strength| 35-40 Kg/cm2 (As per IS.:21851)| 25-30 Kg/cm2| 4| Dry Density| 550-650 kg/m3 (Oven dry)| 1950 Kg/m3|

5| Wet Density| App. 800 Kg./m3| App. 2400 Kg./m3|
6| Fire Resistance| 2 to 6 Hour depending on thickness| 2 Hours| 7| Sound Reduction index1 (dB)| 45 for 200 mm thick wall| 50 for 230 mm thick wall| 8| Thermal Conductivity. (Kw-m/C)| 0.16| 0.81|

9| Adaption to various surface finishes| All kind of Finish like in brick work is possible| Same| 10| Mortar Consumption per M3 with 1:6| 0.5 bag of Cement| 1.35 bag of Cement| 11| Construction Time

per mason per| 30 Sqm. with block only. More can be constructed if total system is used i.e. 50% time saving| 20 sqm. with Conventional Brick|
12| Chemical Composition| Fly ash used app. 60 % which reacts with binders (Lime & Cement) to form AAC which is an inert material| Soil is used which contains many inorganic Impurities like sulfates etc. which results in Efflorescence| 13| Finishing| Can be directly incised, rasped to round edge, cut for arches, tapered to create profiles, sculptured etc.| Not Possible| 14| Contribution to carpet area| 3 - 5 %| No saving|

15| Cost benefit Factor| Depending upon project design, savings upto 20% in structural cost due to reduction of dead load| No saving| 16| Energy saving| Upto 30 % of Airconditioning Load. Both heating and cooling load will come down| No saving|

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OPTIMA CUBE INFRAMATERIALS PVT. LTD.

AAC Blocks v/s Conventional Bricks|
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 | Savings in cost of structure|
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| AAC blocks are one third lighter than conventional clay bricks, thereby reducing the dead weight of the structure drastically.| | Light weight structure decreases construction cost due to reducing steel, Cement and Excavation.| | Our Case Study Shows Following Results Reduction in steel = 15 % Reduction in cement = 10%.| | Due to reduction in dead weight, Reduction in consumption of steel and cement and lesser excavation for foundations, construction time is reduced which in turn results in savings in labor cost and overheads.|

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 | Savings in Mortar|
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| AAC blocks are 7 times bigger than the size of the conventional bricks. Bigger size means less number of joints.| | Less joints results in lesser quantity of mortar for building. There is overall 60% reduction in use of Mortar. |

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 | Savings in Plaster|
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| AAC blocks have uniform shape and texture, which gives even surface to the walls. | | There is overall 35% reduction in the cost of plastering. |
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 | Reduction in wastage Due to less breakages |
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| Unlike conventional clay brick which are prone to breakages, AAC blocks have almost nil breakages. | | There is over all 65% reduction in cost due to practically no wastages the input cost. |

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 | Reduction in HVAC Load |
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| AAC blocks are resistant to thermal variations. It reduces total load of refrigeration and air conditioning. | | Though initial installation cost may remain same but AAC blocks reduces operation and maintenance cost drastically.| | There is over all 25% saving in operation cost. |

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 | Savings in Power Infrastructure |
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| Due to lesser HVAC load, cost of power infrastructure i.e. is lesser capacity of transformer, DG set, and Cable etc also reduces considerably which in form results in savings in GEB charges.|

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 | Cost Effective|
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| | OC blocks are seven times the size of traditional bricks....
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