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

被引：87

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

页码：543 / 549

页数：7

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