GSB & WMM Testing

GSB & WMM Testing

Granular Sub-Base (GSB) and Wet Mix Macadam (WMM) testing ensures quality road construction according to MoRTH specifications. Key tests include gradation, Atterberg limits, CBR, moisture content, and density. These tests confirm the stability, drainage, and strength required for pavement layers.

Services

• Material Gradation Analysis: Ensures proper particle size distribution for stable sub-base layers.
• Compaction & Density Tests: Evaluates optimum moisture content and compaction for GSB and WMM layers.
• California Bearing Ratio (CBR) Test: Determines load-bearing capacity of the subgrade and sub-base.
• Moisture Content & Water Absorption: Ensures long-term durability and resistance to water damage.
• Aggregate Crushing & Abrasion Resistance: Evaluates strength and wear resistance for base and binder courses.
• Bitumen Content & Mix Density for WMM: Confirms proper binder proportion and compaction of bituminous mixes.
• Field Density Tests: Core cutter and sand replacement methods to verify in-situ compaction quality.

Importance of GSB & WMM Testing

• Ensures road and pavement structural integrity and longevity.
• Prevents premature failure of base and sub-base layers.
• Optimizes material usage for economical and sustainable construction.
• Maintains compliance with Indian Standard (IS) codes and construction specifications.
• Supports quality assurance for large-scale highway and infrastructure projects.

Gallery

Include images of soil testing equipment such as Direct Shear, CBR machines, and field density tools.

GSB & WMM

GSB & WMM

GSB & WMM