Abstract
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 LC15–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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