| Grade | Target strength (N/mm²) | Cement (kg/m³) | w/c ratio | |-------|------------------------|----------------|-----------| | M20 | 26.6 | 320 | 0.50 | | M25 | 31.6 | 370 | 0.45 | | M30 | 38.2 | 400 | 0.40 | | M35 | 43.5 | 420 | 0.38 |
Authority: Chief Engineer (Buildings), PWD, Chennai Applicability: All Government Buildings, Educational Institutions, Hospitals, and Offices in TN
The PWD has recently released updated versions of these documents for the current and upcoming fiscal years:
The Tamil Nadu PWD Building Practice Standard Data Book is an essential resource for anyone involved in construction projects in the state. Here are some reasons why:
The document includes "extra provisions" and specialized data for different terrains and conditions:
| Grade | Target strength (N/mm²) | Cement (kg/m³) | w/c ratio | |-------|------------------------|----------------|-----------| | M20 | 26.6 | 320 | 0.50 | | M25 | 31.6 | 370 | 0.45 | | M30 | 38.2 | 400 | 0.40 | | M35 | 43.5 | 420 | 0.38 |
Authority: Chief Engineer (Buildings), PWD, Chennai Applicability: All Government Buildings, Educational Institutions, Hospitals, and Offices in TN
The PWD has recently released updated versions of these documents for the current and upcoming fiscal years:
The Tamil Nadu PWD Building Practice Standard Data Book is an essential resource for anyone involved in construction projects in the state. Here are some reasons why:
The document includes "extra provisions" and specialized data for different terrains and conditions: