ABOUT THE FOUNDATION
There are mainly 2 types of foundations;
- (1) Shallow Foundation
- (shallow foundation work)
- (2) Deep Foundation
(deep foundation work).
When constructing a building, it is a very important task because the foundation has to bear the dead load and live load from the entire building.
If we look at Shallow Foundation in general –
- (1) Single Footing Foundation
- ( 2 ) Combined Footing Foundation, Strip Footing Foundation
- (3) Raft Foundation, Mat Footing Foundation.
(1) Single Footing Foundation
From small buildings to 1-story, 2-story, and 3-story buildings, this type of foundation is used on normal ground. A type of footing where the load falling on a column is carried by a footing. It’s easy to use, and sometimes if the soil is weak due to water intrusion, you have to harden it with Hardcore Lane. After that, the Lane Concrete can be poured and the Foundation can be started.
( 2 ) Combined Footing Foundation, Strip Footing Foundation
If the load from the building falls on the foundation, if the design is calculated with a single footing foundation, a large foundation area may occur. Due to the requirement of Foundation Area, it can be touching a footing. There is also difficulty in building in the workplace. Therefore, to make it easy, they built 2, 3, 4 foundations together. 4 to 6 storey buildings are used in areas with poor soil. Footin is built in rows so that the load from above can be shared. Settlement can also be reduced.
( 3 ) Raft Foundation, Mat Footing Foundation
It is used in cases where a large foundation area is required due to the load that falls on the foundation from the building and because of the bad soil. Mostly used in high-rise buildings, the entire floor is poured as a foundation and the columns are built on it. The foundation volume is large and the amount of concrete poured is large. Due to the large amount of concrete, the rate of heat release increases.
Therefore, when pouring mass concrete, the use of low heat cement for concrete; Add ice cube, Diluting can be done with ice water. When pouring large-volume concrete, just like pouring ordinary concrete, the temperature of the concrete surface drops rapidly and the difference between the temperature coming out of the hole sets, and later cracks appear. Because it can decrease the strength of concrete, special care is needed. If that happens, it’s very difficult to revise. After setting, curing is required.