AAC autoclaved aerated concrete blocks
HASS Block
HASS Block is a lightweight AAC block made from environmentally responsible materials for modern construction. With sound insulation, thermal insulation, fire resistance and low weight, HASS Block helps optimize construction cost and improve long-term building performance.
Applications
Sustainable and efficient building solution
Data
Technical specifications
Vietnamese standard requirements for each strength grade. Select a grade to view the corresponding table. For batch-specific test results or custom dimensions, call 0931 532 456 — the full certificate is provided with each order.
Strength grade: B3 — minimum 3.5 MPa · Applicable standard: TCVN 9030:2017
| No. | Quality criterion | Unit | Standard requirement |
|---|---|---|---|
| 1 | Dry density | kg/m³ | 450 ~ 550 |
| 2 | Compressive strength | MPa | ≥ 3.5 |
| 3 | Dimensional tolerance — length | mm | ± 3 |
| 4 | Dimensional tolerance — height | mm | ± 2 |
| 5 | Dimensional tolerance — thickness | mm | ± 2 |
Strength grade: B4 — minimum 5.0 MPa · Applicable standard: TCVN 9030:2017
| No. | Quality criterion | Unit | Standard requirement |
|---|---|---|---|
| 1 | Dry density | kg/m³ | 550 ~ 650 |
| 2 | Compressive strength | MPa | ≥ 5.0 |
| 3 | Dimensional tolerance — length | mm | ± 3 |
| 4 | Dimensional tolerance — height | mm | ± 2 |
| 5 | Dimensional tolerance — thickness | mm | ± 2 |
Strength grade: B6 — minimum 7.5 MPa · Applicable standard: TCVN 7959:2017 and TCVN 9030:2017
| No. | Quality criterion | Unit | Standard requirement |
|---|---|---|---|
| 1 | Dry density | kg/m³ | 750 ~ 850 |
| 2 | Compressive strength | MPa | ≥ 7.5 |
| 3 | Dimensional tolerance — length | mm | ± 5 |
| 4 | Dimensional tolerance — height | mm | ± 4 |
| 5 | Dimensional tolerance — thickness | mm | ± 2 |
General criteria and dimensions
| Drying shrinkage | ≤ 0.20 % |
| Fire resistance | about 4 hours |
| Sound insulation coefficient | about 44 dB |
| Dry thermal conductivity | 0.16 – 0.26 W/m.K |
| Length | Width | Thickness |
|---|---|---|
| 600 mm | 200, 300, 400 mm | 75, 100 mm |
| 600 mm | 200 mm | 150, 200 mm |
General criteria and dimensions follow HASS technical documents. For other dimensions, call 0931 532 456.
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