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Mat foundation thickness.
Mat foundations also are known as raft foundations is a thick concrete slab placed on the ground as the foundation of the structure.
It is a continuous thick concrete slab on the soil that extends the entire footprint of the building and increases the soil bearing capacity power.
A mat foundation is a thick reinforced concrete slab supporting arrangements of columns or walls in a row or rows and transmitting the loads to the soil.
Then a waterproof plastic sheet is laid over the earth and a thin 3 layer of plain cement concrete pcc is poured just to create a perfectly flat and level base for the foundation.
It is used to support storage tanks industrial equipment silos chimneys and various tower structures.
How to construct a raft or mat foundation a raft foundation is constructed by first excavating the ground to a uniform flat level.
A 3 foot thick mat foundation and basement walls resist structural movement.
A mat foundation spreads out under the footprint of the building and declines the contact pressure compared to conventional strip or trench footing.