What is Rate Analysis 4 The determination of

What is Rate Analysis ? 4 The determination of rate per unit of a particular item of work, from the cost of quantities of materials, the cost of labourers, the cost of equipment and other miscellaneous petty expenses required for completion is know as the rate analysis. 4 Total Cost of unit item = Material cost + Labor cost + Equipment cost Ø Add 1. 5% water charges Ø Add 10% for contractor’s profit Unit-4 Rate Analysis 1 Darshan Institute of Engineering & Technology,

Purpose of Rate Analysis 4 To determine the current rate per unit of an item. 4 To estimate quantities of different civil work items and different types of labourers required for the project. 4 To estimate number and types of equipments required for completing entire project. 4 To award labour contract or to check viability of rates offered by the contractors. 4 To prepare Schedule of Rates (S. O. R. ). Unit-4 Rate Analysis 2 Darshan Institute of Engineering & Technology,

Factors Affecting Rate Analysis 4 Specification of works and materials, proportion of mortar, method of constructional operations, etc. 4 Quantities of materials and their rates, number of different types of labourers and their rates. 4 Location of site of work and its distance from the sources of materials and the rate of transport, availability of water. 4 Profit and miscellaneous and overhead expenses of contractor. Unit-4 Rate Analysis 3 Darshan Institute of Engineering & Technology,

Task Work 4 The capacity of doing work by an artisan or skilled labour in the form of quantity of work per day is known as the task-work or outturn work. 4 Task work per labour varies depending upon following factors : § Physical or Physiological condition § Nature of Work § Weather Condition of labour § Location of Site § Labour wages § Experience, Skill and Training of a § Incentive to the labour § Specification person § Mode of payment of work § Number of labourers with mason or artesian Unit-4 Rate Analysis 4 Darshan Institute of Engineering & Technology,

Standard Labour Requirement as per NBO Labourers Required (Per Day) Work Earthwork per 28. 30 cu m (1000 cu ft) Excavation in foundations, trenches, etc. in ordinary soil including disposal up to 30 m and lift of 1. 5 m 5 Beldars 4 Labours Refilling excavated earth in foundations, plinth, etc. , including consolidation in 15 cm layers 3 Beldars 2 Labours 0. 5 Bhisti Cement concrete work per 2. 83 cu m (100 cu ft) 0. 25 Mason 2 Beldars 3 Labours 0. 75 Bhisti Laying cement concrete * Mistry = Contractor/Coordinator, Mason = Skilled Labour, Beldar = Male Coolie, Labour = Female Coolie, Bhisti = Water Sprinkler Unit-4 Rate Analysis 5 Darshan Institute of Engineering & Technology,

Standard Labour Requirement as per NBO Labourers Required (Per Day) Work R. C. C Work Laying reinforced concrete 2. 83 cu m 0. 25 Mason 2 Beldars 3 Labours 0. 75 Bhisti Centering and shuttering for flat surfaces 9. 6 sq. m 4 Beldars 4 Carpenters Reinforcement work for R. C. C (1 quintal / 100 kg) 1 Blacksmith or fitter 1 Beldar Brickwork per 10 cu m First class brickwork in 1: 4 cement mortar in superstructure partition walls, junctions of roof, parapet walls and string course Unit-4 Rate Analysis 6 0. 5 Mistry 8 Mason 16 Mazdoors 2 Bhisti Darshan Institute of Engineering & Technology,

Standard Labour Requirement as per NBO Labourers Required (Per Day) Work Flooring 4 cm thick cement concrete flooring of 40 sq. m 5 Masons 4 Beldars 3 Labours 1 Bhisti Finishing Plastering with any mortar 12 mm thick 40 sq. m 0. 5 Mistry 3 Masons 3 Labours 1 Bhisti White washing or colour washing (3 coats) 60 sq. m 1 White washer 1 Mazdoor Painting (2 coats) on wood or steel 10 sq. m Unit-4 Rate Analysis 7 3 Painters 2 Mazdoors Darshan Institute of Engineering & Technology,

Rate Analysis for various Items of Work 4 Prepare rate analysis for Earthwork in Excavation upto 1. 5 m depth – For 10 m 3 Particulars Materials Quantity or Nos Rate Rs Cost P Rs P - - - Male Coolie 2 Nos 400 per day 800 Female Coolie 2 Nos 350 per day 700 50 50 Labour, etc Sundries, T and P, etc Lump sum Total Labour Cost 1550 Total of materials and labour 1550 Add 10% Contractors Profit 155 Total for 10 m 3 1705 Unit Rate Unit-4 Rate Analysis 8 170. 50 3 Rs. 171/m Darshan. Say Institute of Engineering & Technology,

Rate Analysis for Sand filling in Foundation and Plinth For 10 m 3 Particulars Quantity or Nos Rate Rs Cost P Rs P Materials Sand Sundries 10 m 3 750 per m 3 7500 Lump Sum 50 50 Total Material Cost 7550 Labours Male Coolie 1 400 per day 400 Female Coolie 1 350 per day 350 Lump sum 50 50 Sundries, T and P, etc Total Labour Cost Unit-4 Rate Analysis 9 800 Darshan Institute of Engineering & Technology,

Cont… Total of materials and labour 8350 Add 1. 5% Water Charge 125 Add 10% Contractors Profit 835 Total for 10 m 3 9310 Unit Rate 931 Say Unit-4 Rate Analysis 10 Rs. 931/m 3 Darshan Institute of Engineering & Technology,

Determination of material required for different items 4 Unit-4 Rate Analysis 11 Darshan Institute of Engineering & Technology,

Cont. . 4 Volume of Mortar in 1 m 3 Brick masonry = 1 – 0. 77 = 0. 23 m 3 4 For frog filling & wastage add 15% extra mortar to be considered. 4 Total Wet Volume of Mortar = 0. 23 X 1. 15 = 0. 26 m 3 When water is added in dry mortar its volume shrinks upto 25% of its original volume. 4 Dry Volume of Mortar = 0. 26 X 1. 25 = 0. 33 m 3 4 Proportion of Mortar for Brick masonry is 1 : 6 (Cement : Sand) Total Proportion of Mortar = 1 + 6 = 7 Unit-4 Rate Analysis 12 Darshan Institute of Engineering & Technology,

Cont… 4 – Standard Mortar Proportions for Brickwork 1 : 6 (Cement : Sand) 1 : 4 (Cement : Sand) Unit-4 Rate Analysis 13 Darshan Institute of Engineering & Technology,

Rate Analysis for First Class Brickwork in 1: 6 in Superstructure For 10 m 3 Particulars Quantity or Nos Rate Rs Cost P Rs P Materials Bricks (19 cm X 9 cm) Cement Sand Sundries 5000 Nos. 4. 5 Rs. Per No. 22500 14 Bags 320 per Bag 4480 2. 8 m 3 900 per m 3 2520 Lumpsum - 100 Total Material Cost 29600 Labours Mistry 0. 5 1000 500 Mason 8 800 6400 Male Coolie 8 400 3200 Unit-4 Rate Analysis 14 Darshan Institute of Engineering & Technology,

Cont… Particulars Quantity or Nos Rate Rs Cost P Rs P Female Coolie 8 350 2800 Bhisti 2 300 600 Lumpsum - 100 Sundries Total Labour Cost 13600 Total Material and Labour Cost 43200 Add 1. 5% Water Charges 648 Add 10% Contractor’s Profit 4320 Total fot 10 m 3 48168 Unit Rate Say Rs. 4817 Rs. 4850/m 3 Exercise : Estimaterials requirement to construct a shop of dimension 9’ x 10’ of brick masonry in C. M. 1: 4 proportion. Dimension of opening of shutter is 7. 5’ x 7’ and window is 3’ x 4’. Unit-4 Rate Analysis 15 Darshan Institute of Engineering & Technology,

Materials for 100 m 2 area and 12 mm thick plaster (1 : 4) 4 Volume of Wet Mortar = Area X Thickness = 100 X 0. 012 = 1. 2 m 3 4 For filling up joints and for uneven surface, 30% more mortar is required Volume of wet mortar = 1. 2 X 1. 30 = 1. 56 m 3 4 To convert wet mortar in dry add 25% Volume of dry mortar = 1. 56 X 1. 25 = 1. 95 m 3 Unit-4 Rate Analysis 16 Darshan Institute of Engineering & Technology,

Cont… 4 Unit-4 Rate Analysis 17 Darshan Institute of Engineering & Technology,

Rate Analysis for 12 mm Thick Plaster in C. M. 1: 4 For 100 m 2 Particulars Quantity or Nos Rate Rs Cost P Rs P Materials Cement Sand Sundries 11. 5 Bags 320 3680 1. 56 m 3 900 1404 Lumpsum - 100 Total Material Cost 5184 Labours Mistry 0. 5 1000 500 Mason 8 800 6400 Male Coolie 4 400 1600 Female Coolie 4 350 1400 2. 5 300 750 Bhisti Unit-4 Rate Analysis 18 Darshan Institute of Engineering & Technology,

Cont… Sundries Lumpsum - 100 Total Labour Cost 10750 Total Material and Labour Cost 15934 Add 1. 5% Water Charges 239 Add 10% Contractor’s Profit 1593 Total for 100 m 2 17766 Unit Rate Say Unit-4 Rate Analysis 19 177 Rs. 180/m 2 Darshan Institute of Engineering & Technology,

Materials required for 1 m 3 of Plain Cement Concrete in 1 : 2 : 4 proportion 4 Unit-4 Rate Analysis 20 Darshan Institute of Engineering & Technology,

Rate Analysis for Plain Cement Concrete work in 1 : 4 : 8 4 Unit-4 Rate Analysis 21 Darshan Institute of Engineering & Technology,

Cont… For 10 m 3 Particulars Quantity or Nos Rate Rs Cost P Rs P Materials Cement 34 Bags 320 per Bag 10880 Sand 4. 68 m 3 900 per m 3 3510 Aggregate 9. 36 m 3 1200 11232 Lump Sum - 100 Sundries Total Material Cost 25722 Labours Mistry 0. 5 1000 500 Mason 1 800 Male Coolie 7 400 per day 2800 Female Coolie 11 350 per day 3850 Bhisti 2. 5 300 750 Unit-4 Rate Analysis 22 Darshan Institute of Engineering & Technology,

Sundries Lump Sum - 100 Total Labour Cost 8800 Total of materials and labour 34522 Add 1. 5% Water Charge 517. 83 Add 10% Contractors Profit Total for 10 m 3 Unit Rate Say Unit-4 Rate Analysis 23 3452 38491. 83 3849 Rs. 3850/m 3 Darshan Institute of Engineering & Technology,

Prepare Rate Analysis for RCC work in 1 : 1. 5 : 3 for slab 4 Unit-4 Rate Analysis 24 Darshan Institute of Engineering & Technology,

Cont… 4 Assume, 1% steel of wet volume of concrete § Volume of Steel = 0. 01 X 10 = 0. 1 m 3 § Weight = 0. 1 X 7850 = 785 kg 4 Take 1 kg of Binding wire for every 100 kg of steel § Weight of Binding wire = 7. 85 kg, Say 8 kg Unit-4 Rate Analysis 25 Darshan Institute of Engineering & Technology,

Cont… For 10 m 3 Particulars Quantity or Nos Rate Rs Cost P Rs P Materials Cement 79 Bags 320 per Bag 25280 Sand 4. 15 m 3 900 per m 3 3735 Aggregate 8. 29 m 3 1200 per m 3 9948 Steel 785 kg 45 per kg 33325 8 kg 50 per kg 400 Lump Sum 100 Binding Wire Sundries Total Material Cost 72788 Labours for mixing, transporting & placing concrete Unit-4 Rate Analysis 10 m 3 26 500 per m 3 5000 Darshan Institute of Engineering & Technology,

Particulars Cost of hiring mixture and vibrator Labour for cutting, bending and binding of reinforcement steel Labour for centering and shuttering Quantity or Nos Rate Rs Cost P P Lump sum - 1000 785 kg 5 Rs per Kg 3025 Lump sum - 5000 Total Labour Cost 14025 Total Labour + Material Cost 86813 Add 1. 5% Water Charge 1302 Add 10% Contractors Profit 8681 Total Cost for 10 m 3 96796 Unit Rate Unit-4 Rate Analysis Rs 27 Rs. 9680 / m 3 Darshan Institute of Engineering & Technology,

Important Summery 4 Common Proportion of Mortar for Brickwork (Cement : Sand) – 1 : 4 , 1: 6 4 Common Proportion of Mortar for Plasterwork (Cement : Sand) – 1 : 3, 1: 4 4 Conventional Concrete Grades (Cement : Sand : Aggregate) § § § M 7. 5 – 1: 4 : 8 M 10 – 1 : 3 : 6 M 15 – 1 : 2 : 4 M 20 – 1 : 1. 5 : 3 M 25 – 1 : 2 § Shrinkage of Mortar = 25% 4 Common Percentage to be Considered§ Shrinkage of Concrete = § Wastage in Brickwork = 15% Unit-4 Rate Analysis 28 52% Darshan Institute of Engineering & Technology,

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