08-11-2012, 05:56 PM
CELLULAR LIGHT WEIGHT CONCRETE
CELLULAR LIGHT WEIGHT.pptx (Size: 1.63 MB / Downloads: 379)
INTRODUCTION
Lightweight concrete can be prepared either by injecting air in its composition or can be achieved by omitting the finer sizes of the aggregate or even replacing them by a hollow, cellular or porous aggregate.
i ) No-fines concrete
ii) Lightweight aggregate concrete
iii) Aerated/Foamed concrete
CELLULAR LIGHT WEIGHT CONCRETE
Cellular Lightweight Concrete (CLC) is produced by the mixing of sand, fly-ash cement foam and water in requisite proportion in ready mix plant or ordinary concrete mixer.
It is very light colour.
The quality of CLC production can be controlled accurately at the project site, just like concrete.
HOW TO PRODUCE ?
Produced with the help of a Foam Generator by using a foaming agent.
It contains isolated air bubbles, which creates million of unconnected tiny voids or cells in the mix.
Wide range of controlled densities from 400 kg/m3 to 1,800 kg/m3.
The density recommended is 1kg/m3 for blocks and 1.2 kg/ m3 for prefab elements and walls cast in-situ.
PERFORMANCE
Thermal properties
Sound insulation
Fire and vermin resistance
Durability and moisture resistance
Toxicity and Breath-ability
Sustainability
Build ability, availability and cost
CONCLUSION
The lightweight concrete has a desirable strength to be an alternative construction material for the industrialized building system.
Nevertheless the compressive strength is accepted to be produced as non-load bearing structure.