WHAT ARE THE FACTORS THAT AFFECTS THE WORKABILITY OF CONCRETE ?
SOME OF THE MAIN FACTORS WHICH AFFECTS THE WORK ABILITY OF CONCRETE ARE DISCUSSED BELOW
Water cement ratio
Work ability increase if more water is used
to prepare concrete
This is the main factor which affects the work-ability of concrete
Richer mixer of concrete will more workable
because mote cement is there in richer mix of concrete and more cement means
more cement paste available for lubricating the concrete.
Smaller the size of aggregate will give
more workable concrete because in larger size aggregate, the surface area is
lass hence less cement paste is required to cover surface area.
Surface texture of aggregate
Smooth texture aggregate will give more
workable concrete. Because the rough surface aggregate will required more cement
paste to cover the.
Grading of aggregate
If grading is done properly then the volume
of voids in the concrete becomes less,
Hence less cement paste is required for lubricate
the concrete, hence workable concrete will be achieved
Use of admixtures
Admixtures like air en-training agents, Pozzolona
cement and plasticizers increases the work-ability without affecting its
strength.
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