System for verification and examination of construction placement related performance evaluation of fresh concrete using at construction site

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In order to develop the practical system for verification and examination of construction placement related performance evaluation of fresh concrete using at construction site, we proposed the two experimental methods for verification and examination of construction placement. One is the test method for dynamic pass-ability through obstacle for fresh concrete using box shaped container. The other is the test method for flow-ability and cohesion evaluation of fresh concrete by tamping test using apparatus of slump test. Our group and six research laboratories in Japan carried out the common experiment using the six mix proportions of concrete with same unit content of cement so as to inspect the propriety of the indexes inquired by these methods,. As a result, it is considered that the two test methods are proper for verification test and the test method for flowability and cohesion evaluation of fresh concrete by tamping test is proper for examination test of construction placement related performance evaluation of fresh concrete.