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
Discussion:
25 comments Page 2 of 3.
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.
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.
Deepankar said:
4 years ago
The given answer is correct.
1st total volume=100 * 0.04 =4 m^3.
The volume is increased by 10% due to uneven surface which gives = 4 * 1.1 = 4.4 m^3.
This volume is further increased by 50% for dry volume calculation = 4.4 * 1.5 = 6.6 m^3.
So total volume = 6.6 m^3.
For cement = (6.6 * 1)/(1+2+4) = 0.9428 m^3.
1st total volume=100 * 0.04 =4 m^3.
The volume is increased by 10% due to uneven surface which gives = 4 * 1.1 = 4.4 m^3.
This volume is further increased by 50% for dry volume calculation = 4.4 * 1.5 = 6.6 m^3.
So total volume = 6.6 m^3.
For cement = (6.6 * 1)/(1+2+4) = 0.9428 m^3.
(5)
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.
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)
MJM Gcek said:
4 years ago
The correct answer is 0.88m3.
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.
6.6/(1+2+4) = 0.94285,
for 2.5cm thick flooring 4.125.
MJM Gcek said:
4 years ago
The answer is 0.88m^3.
(1)
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.
Khld said:
4 years ago
. 88 m^3 is the right answer.
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