Experimental study on impact compression performance of expressway concrete
by Yunxia Li; Qi Ding; Rong Tang
International Journal of Materials and Product Technology (IJMPT), Vol. 65, No. 1, 2022

Abstract: In order to solve the problems such as inaccurate damage estimation and long performance analysis time of concrete existing in traditional methods, the impact compression performance test method of expressway concrete was put forward. The KCC model is used to obtain the stress-strain relationship of highway concrete pavement, and the impact compressive stress of expressway concrete is calculated by linear interpolation. The impact compression damage function of concrete pavement is constructed, and the apparent compaction state equation of concrete pavement is obtained. On the basis of the above, the expressway concrete specimen is made and the impact compression performance test of expressway concrete is carried out. The experimental results show that when the impact force is 20 kN, the accuracy of the damage estimation of the expressway concrete is 95.3%, and the performance analysis time is only 1.4 s.

Online publication date: Wed, 20-Jul-2022

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