Civil Engineering - Estimating and Costing - Discussion

Discussion Forum : Estimating and Costing - Section 2 (Q.No. 1)
1.
For 100 sq. m cement concrete (1 : 2: 4) 4 cm thick floor, the quantity of cement required, is
0.90 m3
0.94 m3
0.98 m3
1.00 m3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
25 comments Page 2 of 3.

Muhammad Tariq said:   4 years ago
The correct answer is 94.
Volume of wet concrete in 4cum.
Volume of dry concrete is=4*1.54( constant),
Total v= 6.61.
Quantity of cement = 1/7 * 6.61 = 0.94.
(1)

Smruti R said:   4 years ago
The volume of concrete= 100 * .04 = 4.
10% increase for the unevenness + 50% increase for dry volume =4*1.1*1.5 = 6.6cum,
Cement=6.6/(1+2+4).
(1)

MJM Gcek said:   4 years ago
The answer is 0.88m^3.
(1)

Sonu said:   1 decade ago
Hi.



Please tell me, How to calculate the Qty of cement 0.940 m^3 ?

MJM Gcek said:   4 years ago
The correct answer is 0.88m3.

Sahla said:   4 years ago
100 * .04=4cu.m of wet concrete.

To produced 1cu.m of concrete 1.54cu.m of dry concrete required.

1.54 * 4 = 6.16cu.m
6.16/1+2+4 = .88 cu.m of cement reqd.
.88 * 1440 (density of cement)=1267.2 kg.

Or,
1267.2/50kg = 25.34=26 bag of cement.

V C SAWATHKAR said:   4 years ago
For 4cm thick flooring constant of rate analysis is 6.6.
6.6/(1+2+4) = 0.94285,

for 2.5cm thick flooring 4.125.

Noora S B said:   4 years ago
1.54 is the conversion factor to convert wet to dry mix and additional they take 10% for unevenness & loss. So, total 1.64.

Nasir waheed said:   4 years ago
0.88 m^3 is the right answer.

Ajay Sharma said:   4 years ago
(1/7) * 1.54 * 4 = 0.88m^3 = 0.9m^3.


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