Beam anchorage bond test between lightweight aggregate concrete with different cement content and ribbed reinforcing bar after elevated temperatures

Abstract

The normal changes of temperature usually will not affect the properties of the strength of concrete. In contrast of that, the concrete behaviour may be different and change under extreme condition of temperature. In this world today, there are many buildings and structures that cannot be reuse effect of fire on them. It is because the beam properties itself that are not or low resistance on fire. Hence, the experimental study will be conduct as temperatures will be variable to represents fire on the specimen and also differ in cement content. Review has found that the common test used to evaluate the bond strength between steel and concrete after elevated temperatures is pull-out test. However, in this study, beam anchorage specimen or also known as beam test will be used for the evaluation. The bond behaviour between ribbed reinforcing rebar and lightweight aggregate concrete after elevated temperatures resulting the bond between them decreases while on the other hand, the bond stress and compressive strength of lightweight aggregate concrete were better approved with increasing cement content