Frost resistance of recycled concrete

Abstract

The frostbite situation of recycled concrete suffered one-time freezing was analyzed, and was then compared with that of the normal concrete. In order to improve the frost resistance of recycled concrete, antifreeze was used and good effect was obtained. The results show that the frost resistance of recycled concrete is inferior to that of recycled concrete. Differences exist in the microstructures of the recycled concrete and normal one, which makes the decrease of frost resistance. Antifreeze can improve the microstructure of recycled concrete, so the frost resistance of it is improved as well.

Keywords

recycled concrete / anti-frozen performance / antifreeze / freezing-thawing cycle / compressive strength