Paper Title:
Architecture Concrete Mesostructure Analysis Based on CT Image Fracture Process
  Abstract

Scanning observation on meso evolution of fracture in concrete is carried out by means of computerized tomography (CT) on uniaxial compressive condition. The cracks in the mortar expansion, in particular, the bond of mortar and aggregate which is key regions of concrete damaged, are drawn out through CT image and CT data, and the destruction process of the concrete can be divided into four stakes, compression, enlargement, the expansion of the CT crack,and destruction. According to the character of CT image,MMD is used to analyze the CT images of the concrete specimens in 4 stages of deformation. The components of the CT images are classified and the spatial distributions of crack or cavity, mortar and aggregate are obtained. The variation process of the relationship between distributions of crack or cavity magnitude and stress are obtained from classification maps. The specimens experienced the process of condensed, volume expansion, crack propagation, coalescence and failure. The method can not only reflect the spatial distribution of the materials but also simplify the following analyses that follow.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 6: Geotechnical Engineering and Underground Space Structure
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
2638-2641
DOI
10.4028/www.scientific.net/AMR.368-373.2638
Citation
L. Zhao, C. H. Li, F. N. Dang, D. F. Chen, "Architecture Concrete Mesostructure Analysis Based on CT Image Fracture Process", Advanced Materials Research, Vols. 368-373, pp. 2638-2641, 2012
Online since
October 2011
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Price
$32.00
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