Abstract
Biodegradable resin concrete made of biodegradable resin and aggregate was examined from many angles in order to apply it for temporary materials such as sheet pile and pile. The rate of deterioration of biodegradable concrete specimens was evaluated from the results of three-point bending tests and unconfined compression tests. The strength of biodegradable concrete was found to gradually decrease and the relationship between bending strength and curing period was similar to the relationship between void ratio and compressive strength of porous concrete. The fact that aggregate breaks away from resin was confirmed on a broken-out section after a three-point bending test. Based on these results, it is concluded that the degradation mechanism is due to the decomposition of biodegradable resin by microorganisms and the bond strength between biodegradable resin and aggregate.
