|The Super Rate Analysis program is based on IS: 7272 - part - 1 - 1974. Wherever the items are available in the code, the relevant labour constants are used. For all other items various publications given in "References" are used. The recommended labour output constants for building works in the IS: 7272 code is valid only for north zone of India comprising of Punjab, Haryana, Delhi, Utter Pradesh & Rajasthan. However these labour constants give fair bit of an idea about the Indian labour productivity.|
|Quantity => Labour constants in days.|
|As per IS: 7272 Waterman (Bhisti) is considered as
separate person other than Mazdoor. He has to fetch water from a
distance, hence coefficient for Bhisti in
IS: 7272 are on higher side. In all other cases Waterman means person mostly involved in curing.
Floor Five Level means up to 15.0 M. from grade level.
b. A day has 8 working hours.
|Super structure rates for various items are up to floor five levels. Rates above floor five level are generally considered as 5 % extra per floor level. However if winch or crane is used than this extra rate will reduce considerably.|
|5. A user shall use the Rate Analysis of Formwork item with caution. Following repetitions are generally assumed.
1. 90 repetitions for Structural Steel. 25 % Salvage value for steel.
2. 40 repetitions for Timber Props.
3. 20 to 40 repetitions for Timber / Planks / Ply.
The formwork cost will vary widely depending up on the repetitions possible & the original cost of investment in Formwork. If the actual repetitions for timber / structural steel are not same as assumed above than user shall change the coefficients in Rate Analysis table proportionally.
Default % for Sundries
& Contingencies, Water
+ Electricity & Over
Head + Profit are taken as given by the User while creating File.
Some times " *** " nomenclature is used to add Extra / Additional costs to Sundries & Contingencies. These % additional costs are for guidance of the user.
Use Overheads program option to arrive at the appropriate figure. It is prudent to go from the whole to the part.
|User should take in to account appropriate Works Contract Tax / Turn over Tax or Sales Tax as applicable before finalizing the final Project / Bid / Tender Cost.|
|In Few Sections the various quantities worked for rate analysis are approximate. It can change depending up on site conditions & extra item requirements if any. User to work out the appropriate quantities & enter in the table to arrive at the correct rate.|
|Mortar items are used as basic items in Plaster, Masonry, Water Proofing etc. Hence to arrive at the basic mortar rate user may suitably reduce or eliminate the quantities of Sundries & Contingencies, Water + Electricity, Taxes (Contract / Sales etc.) & Over Head + Profit.|
|Water Proofing compound if required shall be mixed in Mortar in proportion as recommended by manufacturers.
Usually it is 1.0 Kg per Bag of cement consumed.