| Raw materials | Quartz sand / fly ash + lime + cement + water (100% inorganic, no radioactive emission) |
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| Density grades | B03 (≤325), B04 (≤425), B05 (≤525), B06 (≤625) kg/m³ |
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| Compressive strength | A1.0 – A5.0 (cube avg 1.0–5.1 MPa; min 0.8–4.1 MPa) |
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| Standard length | 600 mm |
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| Standard widths | 100, 120, 150, 200, 240, 250 mm (400 mm for large-format blocks) |
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| Height | 250 mm (also available in 240, 300 mm; large blocks up to 400 mm) |
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| Dry thermal conductivity | 0.07 (B03) – 0.15 (B06) W/(m·K) |
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| Fire resistance | 100 mm wall ≥ 4 hours; Class A1 non-combustible, no toxic gas at high temperature |
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| Sound insulation | 40–60 dB by density level and finish |
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| Frost resistance | Mass loss ≤ 5%; frozen strength ≥ 80% of saturated strength |
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| Dry shrinkage | ≤ 0.50 mm/m (standard method) |
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| Dimensional tolerance | ± 1.0 mm (length, width, height) |
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| Moisture resistance | Internal closed pores; water absorption ~85% lower than clay brick |
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| Equivalence | 1 AAC block ≈ 18 clay bricks in volume |
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| Application | Internal & external walls, partitions, load-bearing & non-load-bearing |
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Hengshuo
