: Detailed data on the exact quantities of materials needed to produce 1 cubic meter of concrete. Construction Procedures
This critical section covers reinforced concrete beams, columns, slabs, and lintels. It includes precise data for: Formwork (shuttering and centering) area calculations Steel reinforcement bending, binding, and placing Concrete pouring and curing mechanisms 5. Finishing Works
Before data and rates can be applied, the "how" of construction must be defined. This is the role of the . The TNBP is a detailed set of specifications and standards.
: Defines precise material requirements, such as the quantities of stone jelly, sand, and cement needed to produce of M-20, M-25, or M-30 grade concrete. : Detailed data on the exact quantities of
The is an essential technical manual for civil engineers, contractors, and government officials involved in infrastructure projects across the state. It serves as the primary reference for defining material quantities, labor requirements, and standardized construction methods to ensure consistency and transparency in public works. Key Features & Contents
For professionals engaged with the Tamil Nadu Public Works Department, the is the "source code" behind every infrastructure budget. It provides the technical rigor that prevents financial leakage, eliminates arbitrary costing, and ensures that every kilogram of steel and cubic meter of concrete in a government building is accounted for by a verifiable scientific formula.
For instance, it mandates that "for all RCC works; the rate shall include the treatment by curing as per TAMILNADU BUILDING PRACTICE". It also specifies that "All exposed concrete surfaces will be required to be finished by cement plaster at contractor's cost". These details ensure that every contractor bids for and executes the same quality of work. Finishing Works Before data and rates can be
| Zone | Coarse aggregate source | Fine aggregate source | |------|------------------------|-----------------------| | Chennai | Crusher – Thandalam, Vandalur | M‑Sand (PWD approved) | | Coimbatore | Quarry – Kovaipudur | River sand – Bhavani | | Madurai | Quarry – Melur | M‑Sand / Cauvery sand | | Trichy | Quarry – Manapparai | M‑Sand |
The Standard Data Book is an official document from the Tamil Nadu government. It lists the required materials, work hours, and tools for building tasks. It acts as a rulebook to ensure all government buildings look good and stay safe. : Gives uniform rules for all public works.
By specifying exact material constants, the book prevents contractors from compromising structural integrity by undersampling or using substandard mix ratios. : Defines precise material requirements, such as the
The Tamil Nadu government has integrated the Building Practice Standard Data Book into digital estimation software like and central e-procurement portals.
: Up to 75% extra on labor for work at "dizzy heights" on dam sites using rope ladders.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
| Soil type | SBC (kg/cm²) | Recommended foundation | |-----------|--------------|------------------------| | Hard rock | 45 – 60 | Open foundation | | Soft rock | 25 – 35 | Stepped footing | | Red soil (compacted) | 12 – 18 | Isolated footing | | Black cotton (dry) | 8 – 12 | Under-reamed pile | | Loose sand | 5 – 8 | RCC raft or pile |
The Schedule of Rates (SOR) changes every year based on market inflation, but the Standard Data Book constants remain relatively steady. Master the Data , and the Rates will take care of themselves.