WHAT IS CONCRETE :
Concrete is a building material which made from mixture of cement ,
sand ,crush or gravel and water. and we poured this mixture in the
form work which can give us the different shapes of element like stone
which is too mush strong.
WHY CONCRETE CRACKS :
1: Excess of water in concrete
2: Improper Compaction of concrete
3: Rapid drying of concrete
4: Temperature Variation
1: EXCESS OF WATER IN CONCRETE
Concrete does not required much water to get maximum strength . we
required limit water in concrete to achieve the maximum strength of
concrete . when we increase the water in concrete so it can lose the
strength , so therefore concrete can crack. water is just reducing in
concrete to make workabality of concrete . so increasing of water can
reduce the strength of concrete.
2: IMPROPER COMPACTION OF CONCRETE
before placing concrete we have to proper compact the soil. and after
that when we placed concrete so concrete should be compacted
properly . when the concrete is not compacted so after that concrete
gets start to crack after some time of placing of concrete. Because
when we don’t compact the concrete so its also reduce the strength.
3: RAPID DRYING OF CONCRETE
when concrete rapid drying so its also danger for concrete , Because
the rapid drying of concrete is the possibility of cracking. Because there
are chemical reaction in concrete its why that concrete change from
liquid or plastic to solid form so its required the water. So the hydration
process starting in the concrete due to cement presence for weeks
after pouring concrete.
4: TEMPERATURE VARIATION
Cracks in concrete is also depend on the temperature, Because the
temperature is high at noon time and at after noon time the
temperature is reducing. Due to this expansion concrete gets staring
cracking.
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