Experimental Study of Concrete Body Formed by Explosion
CUI Zhuo1,2, WANG Hailiang1
1. Key Laboratory of Mine Disaster Prevention and Control, Shandong University of Science and Technology, Qingdao 266590, Shandong Province, China;2. Qingdao Dongfangsheng Security Technology Company Limited, Qingdao 266012, Shandong Province, China
Abstract：The mechanical properties and microscopic structures of the curing concrete in flowing state are studied under the extreme condition of explosion. The concrete test blocks are formed by different charges of explosive in semi-infinite soil. Using the SHIMADZU universal testing machine AG-X250kN system, the uniaxial compression tests are carried out to study the stress-strain curves of the concretes formed by explosion, the concretes curing under the same condition and those of the standard curing. Using the SEM JSM-6510LV system, the microscopic structure images of concretes are obtained under various conditions. It is shown that the concretes formed by explosion have significantly higher strength than those curing under the same conditions, and also higher than those of the standard curing. The qualitative analysis of the microscopic structure of concretes formed by explosion shows that the microscopic structures are in accordance with the improvement of strength.
2012, Vol. 30 
