Technical articles on construction material testing, IS codes, and industry best practices
The complete IRC SP 19 procedure for ATCC traffic surveys: station spacing, 17-class scheme, 7-day continuous coverage, calibration, manual ground-truth validation, AADT computation, and AADT/VDF/MSA conversion to IRC 37 design traffic.
Complete IRC SP 19 / SP 72 axle load survey procedure with the IRC 81 fourth-power-law VDF derivation: site selection, weigh-pad calibration, sample-size targeting, axle load spectrum, per-class VDF, and IRC 37 MSA conversion.
Quantitative thresholds for International Roughness Index (IRI), rutting and surface cracking under IRC SP 16. New construction, overlay and maintenance trigger levels with worked examples for NSV reports.
How FWD deflection-basin data is back-calculated to layer moduli and used for overlay-thickness design under IRC 115. Step-by-step workflow from field deflection capture through to overlay design output for highway rehabilitation.
A Network Survey Vehicle (NSV) is the MoRTH-mandated automated road condition assessment platform for National Highways. This guide explains what it measures, how it complies with RW/NH-33044/32/2019, and what NHAI accepts in NSV reports.
Confused by IS codes for construction testing? This plain-English guide covers the most important Indian Standards every contractor and builder should know.
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