**Rate analysis for PCC 1:4:8 (M7.5) – calculate quantity & cost**, hi guys in this article we know about rate analysis for PCC grade m7.5. Rate analysis comprise of sum of material cost, labour cost, overhead expenses, contractor profit and cost of equipment or tools. And also know about cost and quantity of cement, sand aggregate & water required for 1 cubic metre of M7.5 concrete.

**Rate analysis for PCC (plain cement concrete)** is average an estimate for quotation and billing purpose by mason, supervisor and contractor and for tendering use.

**Rate Analysis for PCC 1:4:8 :-** It is a summary of all the cost involved in doing particular work or unit work like material cost, labour cost, overhead expenses, water charges & contractor profit. For rate analysis, the details about all the operation involved in carrying out the work should be available.

The quantities of materials cement sand aggregate and water are required and their cost should be known and the number of different categories of labours required and the capacity of doing work per labour and their wages per day should be known. These can be known only from the experience of particular work. Concrete structure is generally PCC for making Road,pavement, flooring, basement and etc.

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**Rate analysis for PCC 1:4:8 (M 7.5) work** is summary of all the quantity and cost of material, labours overhead expenses, contractor profit charges and water charges. **Rate analysis for PCC is comprise of following:-**

● 1) quantity and cost of material ( cement sand aggregate and water quantity and their cost)

● 2) water charges ( 1 tanker)

● 3) overhead expenses (3%)

● 4) cost of equipment and tools (2%)

● 5) contractor profit (10%)

● 6) labour rate and cost.

**Rate analysis for 1m3 PCC 1:4:8 (M7.5) work**

M7.5 grade of PCC have cement, sand and aggregate ratio 1:4:8 in which one part is cement, 4 part is sand and 8 part is aggregate. For quantity and cost calculation for m7.5 grade of PCC we should follow following steps:-

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**◆ step 1, Dry volume :-** we have wet volume of PCC work is 1m3 and we have to convert wet volume into dry volume ,we will multiply 1.54 in wet volume.

**Dry volume = 1.54 × 1 = 1.54 m3.**

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**◆ step 2, Cement quantity:-** we know that cement density is 1440 kg/m3 and 1 bag cement weight is 50 kg

**Quantity of cement** = 1/13 × 1.54 m3 × 1440 kg/m3 = 170 kg, no of bag cement for 1m3 PCC 1:4:8 (m7.5) = 170/50 = 3.4.

If rate of cement = INR 300 per bag, then cost of 3.4 bags cement = 3.4 ×300 = INR 1020.

**◆ step 3, Sand quantity :-** generally sand measured in CFT and 1m3 = 35.3147

**Quantity of sand** = 4/13 ×1.54 × 35.3147 = 16.73 cft, so 16.73 cft sand quantity required for 1m3 PCC grade m7.5.

If market rate of sand is consider INR 40 per cft, then cost of 16.73 cft sand = 16.73 × 40 = INR 669, so cost of sand for 1m3 of PCC m7.5 grade = INR 669.

In some areas sand is measured in brass so rate of sand = **INR 4000/ brass**, and 1 brass sand is equal to 100 cft.

**◆ step 4, Aggregate quantity :-** generally aggregate measured in CFT and 1m3 = 35.3147

**Quantity of aggregate** = 8/13 ×1.54 × 35.3147 = 33.47 cft, so 33.47 cft aggregate quantity required for 1m3 PCC grade m7.5

If market rate of aggregate is consider INR 50 per cft, then cost of 33.47 cft aggregate = 33.47 × 50 = INR 1674, so cost of aggregate for 1m3 of PCC grade m7.5 = INR 1674.

In some areas aggregate is measured in brass so rate of Aggregate = **INR 5000/ brass**, and 1 brass Aggregate is equal to 100 cft.

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**◆ step 5, material cost :-** quantity and cost of material required for 1 cubic metre of PCC m7.5 grade is sum of cost of cement sand and aggregate

**Sub total cost of material = cement cost + sand cost + aggregate cost = 1020 +669 + 1674 = INR 3363.**

◆ **step 6, labour rate and charges :-** consider one mason and 2 helper completed 1 cubic metre of concrete work in 8 hour, per mason rate INR 600 and per Helper rate 400, but in mass concreting labour rate for 1m3 PPC work is INR 850. In some other location it will be measured in sq ft and cft also.

**Labour rate is INR 12 per sq ft or INR 25 per cft for PCC work.**

**Labour cost for 1m3 of PCC 1:4:8 work = INR 850**

**Sub total cost = 3363 + 850 = INR 4213**

**◆ step 7, water charges:-** quantity of water required in concreting work used for preparing of mix and curing, consider 1.5% cost of water, then 1.5% of 4213 = INR 63

**Sub total cost = 4213 + 63 = INR 4276**

**◆ step 8, overhead expenses :-** consider 2% overhead expenses,then 2% of 4213 = INR 85.

**Sub total cost = 4276 + 85 = INR 4361**

**◆ step 9, cost of equipment and tools :-** consider cost of equipment or tools is 1.5 %,then 1.5% of 4213 = **INR 63**

**Sub total cost = 4361 + 63 = INR 4424**

**◆ step 10, contractor profit :-** consider contractor profit is 10%, then 10% of 4213 = INR 421

**Total cost = 4424 + 421 = INR 4845.**

PCC rate per cubic meter is rs 4845.

**Ans. INR 4845 is cost and rate analysis for 1 cum PCC 1:4:8 (M7.5).**

◆ **step 11 : rate per sq m for PCC 1:4:8 (m7.5)**, consider thickness of concrete structure is 150mm thick so Area of concrete structure in square metre = 1m3/0.15m = 6.67,

6.67 m2 concrete structure cost = INR 4845, so rate per sq m for PCC M7.5 = 4845/6.67 = INR 726.

**◆ step 12, rate per sq feet for PCC 1:4:8 (m7.5)**,consider thickness of pcc structure is 6 inch (0.5 ft) thick and 1m3 = 35.3147 cft so Area of PCC structure in square feet = 35.3147/0.5 = 70.6 sq ft

70.6 sq ft PCC structure cost = INR 6445, so rate per sq ft for PCC M7.5 = 4845/70.6 = INR 68.

◆ **conclusion:-** Rate analysis for PCC 1:4:8 (M7.5)

● 1) Rate per cum for PCC 1:4:8 (M7.5) = INR 4845 ( including material and labour cost)

● 2) Rate per sq m for PCC M7.5 = INR 726 ( including material and labour cost)

● 3) Rate per sq ft for PCC M7.5 = INR 68 (including material and labour cost)

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