A QUASI REAL-TIME APPROACH TO INVESTIGATING THE DAMAGE AND FRACTURE PROCESS IN PLAIN CONCRETE BY X-RAY TOMOGRAPHY

被引：7

作者：

Qin Yuan ^{[1
]}

Chai Junrui ^{[1
,2
]}

Ding Weihua ^{[1
]}

Dang Faning ^{[1
]}

Lei Man ^{[1
]}

Xu Zengguang ^{[1
]}

机构：

[1] Xian Univ Technol, State Key Lab Ecohydraul Engn Shaanxi, Xian 710048, Peoples R China

[2] China Three Gorges Univ, Coll Civil & Hydropower Engn, Yichang 443002, Hubei, Peoples R China

来源：

JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT | 2016年 / 22卷 / 06期

基金：

美国国家科学基金会;

关键词：

concrete; X-ray computed tomography; damage; medical computed tomography; compression; ACOUSTIC-EMISSION; COMPUTED-TOMOGRAPHY; MODEL;

D O I：

10.3846/13923730.2014.914089

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In most concrete-related computer tomography (CT) experiments, detailed information on the damage and fracture process is obtained using nonreal-time approaches, with the CT method constantly regarded as a qualitative method. This study develops a quasi real-time method with the use of experimental instruments. The average CT number is used to analyse the damage and fracture process in concrete specimens and the theory that underlies concrete damage and fracture is improved. Various characteristics of the fracture form in different loading cases are investigated at the macro and micro levels. This study provides a convenient and fast method for qualitatively and quantitatively analysing concrete.

引用

页码：792 / 799

页数：8

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