Civil Engineering - Estimating and Costing - Discussion
Discussion Forum : Estimating and Costing - Section 1 (Q.No. 22)
22.
For 12 mm thick cement plastering 1 : 6 on 100 sq.m new brick work, the quantity of cement required, is
Discussion:
43 comments Page 3 of 5.
Deepak said:
7 years ago
Why to increase by its 30%?
Naveen Srivastava said:
7 years ago
0.278 is the incorrect answer.
There is no need to add an extra 25%.
It's Converted to wet volume to dry volume by 1.30.
The Correct ans is 100 * 0.012 * 1.30 = 1.56 * (1/7) = 0.222cum.
There is no need to add an extra 25%.
It's Converted to wet volume to dry volume by 1.30.
The Correct ans is 100 * 0.012 * 1.30 = 1.56 * (1/7) = 0.222cum.
Sachin das said:
7 years ago
For 1 m3,
Dry volume = 1m3,
Wet volume is 35% of dry volume,
So we have to take.
1: 6 = 1.35 ( 1.35 m3 become 1m3 after adding water in mortor....and for concrete we take 55%....1.54m3 = 1m3).
1+ 6 = 7........1.35/7 = 0.193 cement required per m3,
Volume = 12/1000 * 100 = 1.2 m3,
Required cement volume= 1.2 * 0.193 =0.23.
Dry volume = 1m3,
Wet volume is 35% of dry volume,
So we have to take.
1: 6 = 1.35 ( 1.35 m3 become 1m3 after adding water in mortor....and for concrete we take 55%....1.54m3 = 1m3).
1+ 6 = 7........1.35/7 = 0.193 cement required per m3,
Volume = 12/1000 * 100 = 1.2 m3,
Required cement volume= 1.2 * 0.193 =0.23.
Muthu nayak said:
7 years ago
dry vol=area*thckness*1.3*1.25.
dry vol=100*0.012*1.3*1.25.
=1.95cum,
Cement=1.95/1+6,
Cement=0.278cum,
dry vol=100*0.012*1.3*1.25.
=1.95cum,
Cement=1.95/1+6,
Cement=0.278cum,
Mohit Motwani said:
8 years ago
Volume of mortar required= 100*.12 = 1.2.
Total 60% of volume increases for dry mortar
1.2+ (.60* 1.2)= 1.92.
Now volume of cement = 1/7 * 1.92= 0.2743.
Total 60% of volume increases for dry mortar
1.2+ (.60* 1.2)= 1.92.
Now volume of cement = 1/7 * 1.92= 0.2743.
Adhiyaman said:
8 years ago
Thanks to all.
Salma said:
8 years ago
1*100*. 012*1. 54/7 =. 274.
Mohit said:
8 years ago
If it is 15 mm thick than answer is .345 cum.
Shahanshah khan said:
8 years ago
I think dry value taken so large in solution maximum take extra 20% to 30%.
Sufazo said:
8 years ago
According to this answer, they taking 60% extra => 1.2 * 60/100 = 0.274.
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