Civil Engineering - Estimating and Costing - Discussion
Discussion Forum : Estimating and Costing - Section 2 (Q.No. 8)
8.
A cement concrete road is 1000 m long, 8 m wide and 15 cm thick over the sub-base of 10 cm thick gravel. The box cutting in road crust is
Discussion:
42 comments Page 3 of 5.
Aamir said:
8 years ago
Box cutting means to the excavation of the road so as to fit the road in the excavated portion this is done to make road level with the surrounding, now you have remembered that there is compaction of 6.25cm in gravel in the subbase so remaining total available ht will be 15+3.75cm, and then as usual l*b*h.
Bharath said:
8 years ago
6.25 cm fixed ah?
Rishabh Machiwal said:
7 years ago
Original Volume= 1000*8*(0.15+0.10)=2000m3,
Cutoff Volume= Original Volume/4=2000/4=500m3,
Box cutting in road crust= 2000-500= 1500m3.
Cutoff Volume= Original Volume/4=2000/4=500m3,
Box cutting in road crust= 2000-500= 1500m3.
Burhan said:
7 years ago
@Rishabh.
Why you divide 2000 by 4?
Why you divide 2000 by 4?
Vinod said:
7 years ago
What is 6.25?
Bipin said:
7 years ago
Box cutting in road crust= 1000 * 8 * (0.15+0.10).
= 2000m^3.
= 2000m^3.
Sonali said:
7 years ago
I think the answer is 2000m3 is correct.
Er Sachin singh said:
7 years ago
2000 m3 is the total volume.
(2)
Navjot said:
7 years ago
Original volume= as you know = 2000.
Cutt off volume= 1/4 of the original volume.
1/4x2000 = 500cum.
So, box cutting in road = 2000 - 500 = 1500 cum.
Cutt off volume= 1/4 of the original volume.
1/4x2000 = 500cum.
So, box cutting in road = 2000 - 500 = 1500 cum.
Sumit said:
7 years ago
How 6.25 cm?
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