Title of Paper:裂纹对水泥基复合材料湿度扩散性能影响的研究

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Date of Publication:2022-10-07

Journal:水利学报

Affiliation of Author(s):建设工程学部

Volume:42

Issue:7

Page Number:826-833

ISSN No.:0559-9350

Abstract:On the basis of humidity diffusion theory,statistical methods and damage
   mechanics,a numerical model has been proposed to study the coupling
   effect between humidity diffusion and crack growth processes in
   cement-based composite.The investigation indicates that crack is an
   important factor which significantly influence the humidity diffusion
   processes,especially the effect on the humidity diffusion paths.The
   humidity would diffuse a large scope as there are cracks in the
   cement-based composite,resulting in the increase of shrinkage stress
   which is not benefit for crack control.Further more,shrinkage stresses
   often result in cracks,which enhanced the humidity diffusion
   processes.It is a humidity-stress-damage coupling processes.Therefore,it
   is important to repair the existing cracks of cement-based composite as
   soon as possible to improve its durability.

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