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Estimates of Unit Quantities (i,e. P.C.C rates)

Rate Analysis of Plain Cement Concrete (PCC) & Calculate Quantity and Cost

Rate Analysis – Plain Cement Concrete (PCC) M10 (1:3:6)

Rate analysis for Plain Cement Concrete (PCC)  requires estimation of materials for PCC, i.e. quantity of cement, sand and aggregate required for 1m3 for various proportions, i.e., PCC M10 (1:3:6), 1:2:4,  etc. So, let us first calculate quantity of cement, sand and aggregate required for 1m3 Plain Cement Concrete (PCC).
Most knowing point for rate analysisWhen you start doing rate analysis we must remember these points :-          Item for rate analysis (Name of the Item i.e. PCC,  RCC, Brickwork etc. )

 Specification (type of material, quality of material etc. )-          Unit (per Sqm, Cum, Rm etc.)-          Labour-          Material-          Overhead (Profit for contractor)Labour for Plain Cement Concrete PCC work:1)      Skilled Labour2)      Unskilled LabourMaterial for Plain Cement Concrete PCC work:1)      Cement2)      Sand3)      Aggregate
Now calculating materialFor 1m3 of wet or solid Plain Cement Concrete (PCC) ratio (1:3:6) , we have to multiply with factor 1.52 for dry density than 1m3  become 1.52m3 of cement, sand & aggregate is required, due to presence of voids in sand in dry state. So, cement sand and aggregate quantity is calculated for 1.52m3 of PCC.            Dry volume = 1.52 m3             Ratio = 1:3:6It means we have to mix 1 unit cement 3 unit sand and 6 unit aggregate than total amount of mix = 1+3+6             (for example M15 (1:2:4) = 1+2+4= 7)            = 10Now ,Volume of cement = 1.52/10 = 0.152 m3                         Volume of sand = 0.152 x 3 = 0.456 m3 Volume of aggregate = 0.152 x 6 =0.912 m3Cement volume for one bag = 0.0347 m3 Cement in bag = 0.152 / 0.0347= 4.38 bag = 219 kgs

Estimation of Labour and Tools for Plain Cement Concrete:

For 1m3 of Plain Cement Concrete (PCC) Ratio 1:3:6 , unskilled labour is required for 4 man-days for mixing, for carrying of cement, sand, aggregate and water. Skilled labour is required for 1man-day for placing, checking, of concrete on required line level for 1cum.

Rate Analysis of Plain Cement Concrete  (PCC) 1:3:6 :

Rate analysis of Plain Cement Concrete requires the rate of cement, sand and aggregate multiplied with their respective quantity. Cost of labour and tools and tackles for the PCC  is also calculated. Cost of cement, sand, aggregate,  labour and tools depend on local availability and local rates.When, quantity of cement, sand, aggregate, labour and tools are multiplied by its rates, and a contractors profit of 10-20% is assumed, the total sum of the amount is taken as the cost of 1m3 of  PCC, which is shown below

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PCC work
#Plain cement concrete work 1:3:6 (M10)
Supplying, mixing & pouring plain cement concrete in 1:3:6 cement sand aggregate (Machine crushed) of approved size & quality as specified thickness in the drawing, compactioning, curing etc.all complete .
Unit : Per Cum.
SourceTypeQuantityUnitRateAmount (Rs.)Remarks
Aggregate (Ma. Crush)0.89Cum.2000.001780.00
Add, contractor’s overhead15% of sub-total1343.18
Total rate10297.68
Sample of Rate Analysis

Same Process for Plain Cement Concrete PCC ratio M7.5 (1:4:8), M10 (1:3:6), M15 (1:2:4) etc.

Estimates of Unit Quantities (i,e. P.C.C rates) + Road Estimate

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1 Comment
  1. Reply
    Reuben Chongo Mutofwe July 23, 2020 at 10:08 am


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