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Emerging Rapid Aggregate And Concrete Test Methods For Formulating Asr-Resistant Concrete, Anol Mukhopadhyay, Kai-Wei Liu
Emerging Rapid Aggregate And Concrete Test Methods For Formulating Asr-Resistant Concrete, Anol Mukhopadhyay, Kai-Wei Liu
International Conference on Durability of Concrete Structures
The main objective of this study was to develop rapid aggregate and concrete test methods and a combined innovative approach for formulating performance based ASR resistant concrete mixes. An innovative step by step approach has been developed to formulate ASR resistant concrete mixes based on four recommended steps. In step 1, determination of aggregate ASR composite activation energy (CAE) and threshold alkalinity (THA) by using a rapid aggregate chemical test called volumetric change measuring device (VCMD) is performed. The lower the CAE the higher the reactivity is. Based on the measured CAE and THA, mix design formulation is conducted in …