Study on the Thermal Properties of Hollow Shale Blocks as Self-Insulating Wall Materials

Abstract EN

To reduce energy consumption and protect the environment, a type of hollow shale block with 29 rows of holes was designed and produced.

This paper investigated the thermal properties of hollow shale blocks and walls.

First, the guarding heat-box method was used to obtain the heat transfer coefficient of the hollow shale block walls.

The experimental heat transfer coefficient is 0.726 W/m2·K, which would save energy compared to traditional wall materials.

Then, the theoretical value of the heat transfer coefficient was calculated to be 0.546 W/m2·K.

Furthermore, the one-dimensional steady heat conduction process for the block and walls was simulated using the finite element analysis software ANSYS.

The predicted heat transfer coefficient for the walls was 0.671 W/m2·K, which was in good agreement with the test results.

With the outstanding self-insulation properties, this type of hollow shale block could be used as a wall material without any additional insulation measures in masonry structures.