The Testing Strength Curves of Lightweight Aggregate Concrete by Rebound Method and Ultrasonic-rebound Combined Method

武汉理工大学学报-材料科学版(英文版), 2011, 26(5): 1010-1017. doi: 10.1007/sl1595-011-0353-7

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

2.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

3.School of Civil Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

4.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

5.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

The Testing Strength Curves of Lightweight Aggregate Concrete by Rebound Method and Ultrasonic-rebound Combined Method

RONG Hui ^1, , QIAN Chunxiang ^2, , GAO Lixiong ^3, , HAN Jiande ^4, , WANG Caihui ^5,

1.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

2.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

3.School of Civil Engineering, Dalian University of Technology, Dalian 116024, ChinaSchool of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China

4.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

5.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

Keywords： lightweight aggregate concrete

The strength curves of lightweight aggregate concrete (LWAC) were tested based on detecting LWAC with density of 1 400-1 900 kg/m3 and LWAC with strength grade of LCI5-LC50 by rebound method and ultrasonic-rebound combined method.The results show that the common measured strength curves tested by above two methods can not satisfy the required accuracy of LWAC strength test.In addition,specified compressive strength curves of testing LWAC by rebound method and ultrasonic-rebound combined method are obtained,respectively.

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