A molecular dynamics and microporomechanics study on the mechanical properties of major constituents of hydrated cement

被引：80
作者：
Al-Ostaz, A. [1 ]
Wu, W. [1 ]
Cheng, A. H. -D. [1 ]
Song, C. R. [1 ]
机构：
[1] Univ Mississippi, Dept Civil Engn, University, MS 38677 USA
来源：
COMPOSITES PART B-ENGINEERING | 2010年 / 41卷 / 07期
关键词：
Micro-mechanics; Mechanical properties; C-S-H; C-S-H; CALCIUM-SILICATE-HYDRATE; FORCE-FIELD; TRICALCIUM SILICATE; CRYSTAL-STRUCTURE; PORTLAND-CEMENT; PASTES; MODELS; GEL; NANOINDENTATION;
D O I：
10.1016/j.compositesb.2010.06.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cement paste is the matrix material for concrete and cement based composites. This paper presents a molecular dynamics (MD) method for estimating mechanical properties of hydrated cement major constituents: calcium-silicate-hydrate (C-S-H) structurally related tobermorite 14 angstrom and jennite, and calcium hydroxide (CH). Microporomechanics technique is used to calculate properties of two types of C-S-H, namely, low density (LD) and high density (HD) C-S-H gels. Simulation results reported by the authors were compared with existing computational and experimental values. This research is intended to give a general step to study the complicated cement hydrated products from a multiscale view. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：543 / 549
页数：7
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