Airtec Large are suitable for use as wall blocks and for infill blocks for suspended block and beam floors.
Due to the exellent thermal properties of Airtec and it's very low weight, these large blocks are easy to handle and reduce the mortar fraction in a wall therefore improving u-values and airtightness even further.
In common with all other Airtec blocks, they boast the very best possible dimensional tolerance category of 'Thin Layer Mortar B' (TLMB) but are perfectly suitable for conventional 10mm mortar joint construction. Airtec blocks are available in Standard texture only, Smooth faced but are not intended for fair-faced use due to the natural air bubbles on the block surface.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Thomas Armstrong Group is consulted before specifying.
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| Application (?) | Block and beam floor infill , Inner & Outer leaf of cavity walls , Internal partition walls | |
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| Compressive Strength (?) | 3.6 N/mm2 | 60.71% |
| R-value (?) | 0.53 m2K/W | 5.56% |
| Sound reduction (?) | 40 dB | 33.33% |
| Thermal Conductivity (?) | 0.13 W/mK | 60.71% |