Effect of Different Coral Aggregates on Mechanical Properties of Coral Concrete

Effects of scoured staghorn coral, light coral reef and heavy coral reef as coarse aggregates on the mechanical properties of coral concrete were investigated. The results show that staghorn aggregates have the most significant effect on the compressive strength of coral concrete cubes and prisms rather than heavy coral reef and lightweight coral reef aggregates. The compressive strength of coral concrete at 90 d is positively correlated to that at 28 d. The compressive strength of prisms increases linearly with the compressive strength of the cube, regardless of the aggregate type. The peak strain of coral concrete prisms increases logarithmically with the increase of peak stress, and the stress-strain curve equation and the compressive failure morphology of the prisms are not affected by coral aggregate type. © 2020, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.