Foam concrete is produced when pre formed foam is added to slurry the function of foam is to create an air voids in cement based slurry.
Cellular lightweight concrete ppt.
Properties of cellular lightweight concrete blocks.
Description 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.
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The purpose of the foam is to supply a mechanism by which a relatively high proportion of stable air voids can be induced into the mixture and produce a cellular or porous solid upon curing of the mixture.
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Although there are a number of lightweight cementitious materials the key differentiating factor between cellular concrete and other lightweight cementitious materials is the use of externally generated foam to reduce the density.
Cellular concrete may go by other names including foam cement foamed concrete or lightweight flowable fill.
Foam concrete does not contain coarse aggregate and can be regarded as an aerated mortar.
It may also be defined as.
Concrete which uses lightweight aggregates may consist of lightweight aggregates are used in ordinary concrete of coarse aggregate and sand clay.
When cellular concrete hardens it has an oven dry density of 50 lb ft3 8 t m3 or less.
To achieve the above principle practically there are 3 different ways.
In this paper an endeavor is made to think about on cellular lightweight solid squares and suggest as it can be utilized as a part of building development.
The mixed slurry is then poured into moulds of pre cast blocks structural components assembled form work of building elements or over flat roofs for thermal.
Cellular concrete is a mixture of cement water and preformed foam.
Lightweight concrete is a special concrete which weighs lighter than conventional concrete.
By replacing the conventional aggregates by cellular porous aggregates light weight agg.
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By incorporating the air or gas bubbles in concrete aerated concrete.
Density of this concrete is considerably low 300kg m3 to 1850kg m3 when compared to normal concrete.
Light weight cellular concrete blocks are casted with 65 of fly ash and 35 of cement with foam content 1 5 of total weight and to increase its strength sand and quarry dust is added in its composition which replace fly ash upto 30 at an interval of 5.
By omitting the sand from the concrete no fines concrete.
