What is foundation? Functions of foundation and Types of foundation?
What is foundation?
The foundation of a building is that part of walls, piers and columns in
direct contact with the ground and transmitting loads to the ground. also
foundation known as substructure of the building.
Functions of foundation:
§ Evenly load Distribution of the structure
§ Reduction of load intensity
§ To prevent the lateral movement of supporting material
§ To increase stability of the structure
§ To safety against undermining
Types of foundation:
Foundations are classified in two types
Shallow foundation
Deep foundation
1. Shallow foundation
a.
Isolated footing
b.
Combined footing strap footing
c.
Grillage footing
d. Mat or raft footing
2. Deep foundation
a.
Piles foundation
b.
Cofferdams
c. Caissons foundation
How calculate quantity of cement, sand and aggregate in 1m3 of concrete?
Concrete mix design for 1m3 of M20 grade concrete
SUMMARY:
1. volume of cement required for 1m3 concrete 403.2 kgs, 1 bag cement weight is 50kgs, so calculate number of cement bags required for 1m3 of concrete, total calculated cement weight divided by one bag cement weight.
number of cement bags consume = 403.2/ 50
= 8.06
~ 8
bags.
2. volume of sand required for 1m3 of concrete 672kgs, weight of 1 CFT
sand value is 43.30kgs,, so calculate number of CFT sand required,
Number of CFT = 672/43.30
= 15.51
= 16 cft.
3. volume of aggregate required for 1m3 of concrete 1356 Kgs, weight of 1 CFT
aggregate value is 68.15 kgs, so calculate number of CFT aggregate required,
Number of CFT = 1356/ 68.15
= 21.47
~ 21 cft.
