Investigation on the fracture mechanism of homogenized micro-crack crushing technology for portland cement concrete pavement rehabilitation

doi:10.1063/1.5111055

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Investigation on the fracture mechanism of homogenized micro-crack crushing technology for portland cement concrete pavement rehabilitation
	Li WJ; Zhang QL; Zhi ZH; Feng C(冯春); Cai YC; Yue JC
刊名	AIP ADVANCES
	2019-07-01
卷号	9 期号:7 页码:14
ISSN号	2158-3226
DOI	10.1063/1.5111055
通讯作者	Yue, Jinchao(yuejc@zzu.edu.cn)
英文摘要	The homogenized micro-crack crushing technology for concrete pavement maintenance has received increased attention in China. To study the fracture mechanism of the homogenized micro-crack crushing technology, a low-velocity impact test system is developed and experiments using concrete slabs of different thicknesses are conducted with different drop heights and hammer weights. Furthermore, the fracture of concrete slabs under impact loading is simulated using the continuous-discontinuous element method. Finally, the fracture mechanism is investigated in a case study. It is concluded that a cylindrical compression-shear fracture surface appears under the impact head while the fractured blocks are still interlocked with each other. The main cracks in the concrete slabs are initiated and propagate parallel to the longer side of the impact head, whereas branch cracks develop perpendicular to the main cracks. These cracks radiate from the center of the impact head. The cracks inside the concrete develop upward from the bottom of the slabs. Because fractured blocks divided by micro-cracks can interlock with themselves and the crack distributions tend to be uniform, it is beneficial for portland cement concrete pavement rehabilitation to be overlaid by a hot-mix asphalt mixture.
分类号	Q3
资助项目	National Key Research and Development Program of China[2018YFC1505504] ; Henan Provincial Department of Transportation[2018J4]
WOS关键词	IMPACT RESISTANCE ; SLABS ; RUBBLIZATION ; AGGREGATE ; HIGHWAY
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000478910300090
资助机构	National Key Research and Development Program of China ; Henan Provincial Department of Transportation
其他责任者	Yue, Jinchao
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/79742]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Li WJ,Zhang QL,Zhi ZH,et al. Investigation on the fracture mechanism of homogenized micro-crack crushing technology for portland cement concrete pavement rehabilitation[J]. AIP ADVANCES,2019,9(7):14.
APA	Li WJ,Zhang QL,Zhi ZH,冯春,Cai YC,&Yue JC.(2019).Investigation on the fracture mechanism of homogenized micro-crack crushing technology for portland cement concrete pavement rehabilitation.AIP ADVANCES,9(7),14.
MLA	Li WJ,et al."Investigation on the fracture mechanism of homogenized micro-crack crushing technology for portland cement concrete pavement rehabilitation".AIP ADVANCES 9.7(2019):14.