IS 1077 (Class 10) CERTIFIEDCivil Engineering Guidance
Unsure whether to specify Concrete Hollow for your foundation, column, or slab? Our structural engineers audit site drawings free of charge.
Consult Civil Engineer →Concrete Hollow (1st Class Red Clay)
Technical Specifications & Bureau Compliance
| Manufacturer / Brand | Concrete Hollow |
|---|---|
| Product Category | Bricks & Masonry Blocks |
| Standard Compliance | IS 1077 (Class 10) 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 |
How does Ostaad Bulk Buying work?
Concrete Hollow Variants & Thickness Rates
Base variant starts from ₹950 / PIECE. Click any variant below to inspect full specifications, load capacity, and calculate exact quotas.
1st Class Red Clay
1st Class Red Clay manufactured by Concrete Hollow conforming to IS 1077 (Class 10).
Wire-Cut Bricks
Wire-Cut Bricks manufactured by Concrete Hollow conforming to IS 1077 (Class 10).
Machine Pressed
Machine Pressed manufactured by Concrete Hollow conforming to IS 1077 (Class 10).
Concrete Hollow Blocks
Concrete Hollow Blocks manufactured by Concrete Hollow conforming to IS 1077 (Class 10).
Concrete Hollow Bag & Material Estimator
Input the structural casting area to compute the exact ratio of Concrete Hollow bags, Coarse River Sand, and Crushed Aggregate needed for casting.
Calculated for 1,000 sq ft with 5% casting margin.
Concrete Hollow 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 |
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