THE SUITABILITY OF CORES IN PREDICTING THE BEHAVIOR OF STRUCTURAL MEMBERS SUFFERING FROM ASR

The use of cores to predict the expansion of structures with alkali-si lica reaction (ASR) has been questioned elsewhere. In this Paper the u se of the mechanical properties of cores to predict the structural beh aviour of such structures is also questioned. Laboratory data on the i nfluence of restraint to ASR expansion on the mechanical properties of ASR-affected concrete, and on ultrasonic pulse velocities of columns before and after coring is presented. The results are discussed in rel ation to the prediction of concrete properties in ASR-affected structu res.