English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Thermal insulation concrete with recycled coarse aggregate (RATIC) provides an excellent alternative to energy saving and the reuse of waste concrete in buildings. In this paper, experiments were conducted to investigate the mechanical properties of the RATIC material after exposure to elevated temperatures, including failure feature and residual strengths. The effects of temperatures and the replacement percentage of recycled coarse aggregate (RCA) on the compressive and tensile strengths of the RATIC were first assessed experimentally. Then, the formulas for both compressive and tensile strengths were developed as a function of temperatures using the regression analysis. The test results show that the RATIC is prone to explosive spalling due to the compact structure of cement paste and low thermal conductivity. The compressive strength of the RATIC increases slightly under the temperature of 400 °C and then decreases significantly with an increasing exposed temperature. In contrast, the splitting tensile strength of the RATIC decreases significantly after the material was exposed to a high temperature of 200 to 800 °C. With the increasing RCA percentage, the RATIC experiences more strength deterioration in tension than compression, while little difference was observed regarding thermal exposure and failure modes of the RATIC.

Mechanical properties of thermal insulation concrete with recycled coarse aggregates after elevated temperature exposure