IS 15658 (M30–M40) CERTIFIEDCivil Engineering Guidance
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Consult Civil Engineer →Bengal Interlock (60 mm Zig-Zag Paver (M35))
Technical Specifications & Bureau Compliance
| Manufacturer / Brand | Bengal Interlock |
|---|---|
| Product Category | Interlock Paver Blocks |
| Standard Compliance | IS 15658 (M30–M40) CERTIFIED |
| Compressive Strength @ 28 Days | Meets Bureau Mandate |
| Compressive Strength @ 3 Days | Batch MTC Guaranteed |
| Initial Setting Time | 165 mins (BIS Requirement: Min 30 mins) |
| Final Setting Time | 245 mins (BIS Requirement: Max 600 mins) |
| Fineness (Blaine Air Permeability) | 285 m²/kg (BIS Mandate: Min 225 m²/kg) |
| Packaging Format | 50 KG Net Multi-Ply Poly-Lined Valve Bag |
| Regional Supply Hub | Kolkata · Direct Mill Supply |
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Bengal Interlock Variants & Thickness Rates
Base variant starts from ₹34 / SQ.FT (60MM). Click any variant below to inspect full specifications, load capacity, and calculate exact quotas.
60 mm Zig-Zag Paver (M35)
60 mm Zig-Zag Paver (M35) manufactured by Bengal Interlock conforming to IS 15658 (M30–M40).
80 mm Heavy Duty (M40)
80 mm Heavy Duty (M40) manufactured by Bengal Interlock conforming to IS 15658 (M30–M40).
I-Shape Paver Blocks
I-Shape Paver Blocks manufactured by Bengal Interlock conforming to IS 15658 (M30–M40).
Bengal Interlock Bag & Material Estimator
Input the structural casting area to compute the exact ratio of Bengal Interlock bags, Coarse River Sand, and Crushed Aggregate needed for casting.
Calculated for 1,000 sq ft with 5% casting margin.
Bengal Interlock Compressive Strength Development
Simulate hydraulic compressive strength development across the standard 28-day water curing cycle under IS 4031 testing guidelines.
Bureau of Indian Standards (BIS) Benchmark Matrix
PHYSICAL & CHEMICAL AUDIT CRITERIA AS PER IS 4031 & IS 4032
| PROPERTY | IS 12269 (GRADE 53) | IS 8112 (GRADE 43) | IS 1489 (PPC) |
|---|---|---|---|
| 3-Day Compressive Strength | ≥ 27.0 MPa | ≥ 23.0 MPa | ≥ 16.0 MPa |
| 7-Day Compressive Strength | ≥ 37.0 MPa | ≥ 33.0 MPa | ≥ 22.0 MPa |
| 28-Day Compressive Strength | ≥ 53.0 MPa | ≥ 43.0 MPa | ≥ 33.0 MPa |
| Initial Setting Time | ≥ 30 mins | ≥ 30 mins | ≥ 30 mins |
| Final Setting Time | ≤ 600 mins | ≤ 600 mins | ≤ 600 mins |