Thermalite Aircrete Hi-Strength Trenchblock Tongue & Groove

Thermalite Aircrete Hi-Strength Trenchblock Tongue & Groove

Thermalite Hi-Strength Trenchblock Tongue and Groove is an alternative to the construction of cavity walls with concrete infill, engineering bricks or heavy aggregate blocks for foundations. It has a compressive strength of 7.3N/mm2, tongue and groove joints and handholds for easy handling.

Benefits

  • Improves thermal performance
  • Available in standard or with tongue and groove joints and handholds
  • Can be used in thin joint masonry, saving time and money  
  • Removes the need to mortar perp ends
  • Moisture resistance

Key Data

Compressive Strength: 7.3 N/mm²

λ Design above dpc: 0.18 W/m.K

λ Below ground: 0.29 W/m.K

Dry Density: 730 kg/m³

Working Dimensions

Face dimensions (mm): 440 x 215

Dimensions and Weights

Block thicknesses and weights at equilibrium density (for 440 x 215mm)

Height Length Width Dry Weight
215mm 440mm 255mm 18.1kg
215mm 440mm 275mm 19.6kg
215mm 440mm 300mm 21.3kg
215mm 440mm 355mm 25.3kg

Foundations

Contact Us

Send us your block enquiry

Read More
SpecZone

Try our specification tools here

Read More
Thermalite Guide

Download here

Read More

We use cookies to help provide you with the best possible online experience and to gather anonymised, aggregate website usage data. You can find out more about the cookies we use and how to disable them in our Cookie Policy. By using our website you agree that we may place cookies of the type listed in our Cookie Policy on your device. Close X

Specification zone login

To access our useful specification zone tools and to view and update your user profile, please enter your email and password below.
If you are not already a registered user, click here to Register.

Login

Forgot Password? - click here