During manual concreting of a raft footing which was designed for M25 grade concrete, the estimated cement required was 240 bags, while the laborers due to sheer negligence have added only 140 bags. The Soil conditions are good. There ...
The vertical movement in foundations is caused by : Either downwards movement of the wall or wall footing, when a wall footing sinks in soft soil. An up and down movement of the wall or wall footings such as when a wall is disturbed by frost in a freezing climate Expansive clay soils expand or shrinRead more
The vertical movement in foundations is caused by :
- Either downwards movement of the wall or wall footing, when a wall footing sinks in soft soil.
- An up and down movement of the wall or wall footings such as when a wall is disturbed by frost in a freezing climate
- Expansive clay soils expand or shrink as their water content increases or decreases.
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KomalBhandakkar
Effect of cement content on strength of footing: The result reveals that the strength of concrete Foundation increases with increasing cement content in it. However, for concrete with cement content more than 150 kg per metre cube then the strength increases with the increase in the size of coarse aRead more
Effect of cement content on strength of footing:
The result reveals that the strength of concrete Foundation increases with increasing cement content in it.
However, for concrete with cement content more than 150 kg per metre cube then the strength increases with the increase in the size of coarse aggregate up to 25 mm and decreases as the aggregate size increases beyond 25mm.
Without a proper range of cement in the mixture then low strength development or excessive shrinkage may occur leading to premature deterioration.
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