How much cement is needed per m3 of PCC 1:3:6?

1/10 x 1.54 = 0.154 m3, i.e. 4.435 bags

What sand and aggregate quantities go into 1 m3 of PCC 1:3:6?

Sand 0.462 m3 and aggregate 0.924 m3

Sand 0.924 m3 and aggregate 0.462 m3

Sand 0.30 m3 and aggregate 0.60 m3

Sand 0.154 m3 and aggregate 0.308 m3

How is the final rate per m3 obtained from the direct cost of 18,360?

Add 15% overhead and 10% profit on direct cost to get 22,950

Add 15% overhead only to get 21,114

Add 25% on the material cost only

Subtract 25% from the direct cost

2067 Poush (old course) · 6 marks

Rate analysis: PCC 1:3:6 per m³

Short answer

Use dry volume 1.54 m3 per m3 with ratio sum 10; cement 4.435 bags, sand 0.462 m3, aggregate 0.924 m3, plus assumed labour and lump water. Add 15% overhead and 10% profit to direct cost 18,360 NPR, giving rate 22,950 NPR per m3.

Prepare an analysis of rate for P.C.C. (1:3:6) per m³.

Rates and labour norms below are illustrative (DUDBC-style); use the current District Rate for a real estimate. Cement NPR 1,000/bag, sand NPR 3,500/m³, 20 mm aggregate NPR 4,500/m³, skilled NPR 1,500/day, unskilled NPR 1,100/day, overhead 15%, profit 10%.

Quantities per m³ of PCC (1:3:6)

Dry volume $= 1.54$ m³; sum of ratio $= 10$
Cement $= 1/10\times1.54 = 0.1540$ m³ $= 4.435$ bags
Sand $= 3/10\times1.54 = 0.4620$ m³; aggregate $= 6/10\times1.54 = 0.9240$ m³
Labour: 1.0 skilled and 6.0 unskilled days per m³ (assumed norm).

Analysis

Item	Qty	Unit	Rate (NPR)	Amount (NPR)
Cement	4.435	bag	1,000.00	4,435.00
Sand	0.4620	m³	3,500.00	1,617.00
Coarse aggregate	0.9240	m³	4,500.00	4,158.00
Skilled labour	1.000	day	1,500.00	1,500.00
Unskilled labour	6.000	day	1,100.00	6,600.00
Water and curing (lump)	1	LS	50.00	50.00
Direct cost				18,360.00
Contractor's overhead @ 15%				2,754.00
Contractor's profit @ 10%				1,836.00
Total (rate per m³)				22,950.00

Rate of PCC (1:3:6) = NPR 22,950.00 per m³.

✓ Answer checked by Claude Opus 5.5 (high effort)

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Rate analysis: PCC 1:3:6 per m³

Quantities per m³ of PCC (1:3:6)

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