Guidelines for the Use of Dry Lean Concrete as Sub-base for Rigid Pavement
View at irc.nic.inWhat this code covers
DLC mix proportioning, materials including fly ash and GGBFS admixtures, subgrade preparation, and construction procedures. Minimum thickness: 150mm for NH/SH, 100mm for other roads.
What this means on site
Essential for rigid pavement projects with DLC sub-base. The 2014 revision reduced the 7-day compressive strength benchmark to 7 MPa. Fly ash use reduces material costs.
Other pavement codes
Guidelines for the Design of Flexible Pavements
Design procedures for bituminous asphalt pavements based on CBR values. Applies to expressways, national highways, state highways, and major district roads. Traffic capacity extended to 150 msa.
Guidelines for the Design of Plain Jointed Rigid Pavements for Highways
Cement concrete slab design with dowel bar and tie bar specifications. Covers design factors: traffic, subgrade CBR, environment, materials, slab thickness, and joint spacing.
Standard Specifications and Code of Practice for Construction and Maintenance of Bituminous Roads
Construction standards for all hot-mix bituminous layers: Bituminous Macadam (BM), Dense Bituminous Macadam (DBM), Bituminous Concrete (BC), and Semi-Dense Bituminous Concrete (SDBC). Covers material requirements, mix design, laying and compaction procedures, acceptance criteria, and surface tolerances.
Get the right IRC clauses in every spec and submittal.
CivilBolt pulls the IRC references your contract cites and flags non-compliance before the IE does. No more spec hunting across PDFs.