文献类型：期刊文献

中文题名：Nanoindentation Characteristics of Cement Paste and Interfacial Transition Zone in Mortar with Rice Husk Ash

英文题名：Nanoindentation Characteristics of Cement Paste and Interfacial Transition Zone in Mortar with Rice Husk Ash

作者：He Zhihai[1];Qian Chunxiang[2];Du Shigui[1];Huang Man[1];Xia Menglu[1]

机构：[1]Shaoxing Univ, Coll Civil Engn, Shaoxing 312000, Peoples R China;[2]Southeast Univ, Coll Mat Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China

年份：2017

卷号：32

期号：2

起止页码：417

中文期刊名：武汉理工大学学报：材料科学英文版

外文期刊名：JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION

收录：SCI-EXPANDED(收录号：WOS:000401841300030)、CSTPCD、、EI(收录号：20171903639685)、Scopus(收录号：2-s2.0-85018950455)、WOS

基金：Funded by the National Natural Science Foundation of China (Nos. 51602198, 41427802 and 41302257), the Zhejiang Provincial Natural Science Foundation of China (No. LQ13D020001) and the Shaoxing University Scientific Research Project (No. 20145030)

语种：英文

中文关键词：界面过渡区;水泥浆体;纳米压痕;C-S-H;特性;纳米结构;水化产物;体积分数

外文关键词：nanoindentation; rice husk ash; cementitious material; interfacial transition zone; elastic modulus; calcium-silicate-hydrate (C-S-H)

中文摘要：The nanostructure of cementitious materials has important effects on concrete properties. The effects of rice husk ash(RHA) on cement hydration product phases and interfacial transition zone(ITZ) in mortar were investigated from the nano-scale structure perspective. The experimental results indicate that, with the increase of RHA dosages of samples, the volume fraction of high-density calcium-silicate-hydrate(HD C-S-H) in porosity and hydration product phases increases. The volume fractions of HD C-S-H in C-S-H of samples show an increasing trend with the increase of RHA dosages. RHA decreases the thickness of ITZ and increases the matrix elastic moduli of samples, however, the RHA dosoges hardly affect the thickness and elastic moduli.

外文摘要：The nanostructure of cementitious materials has important effects on concrete properties. The effects of rice husk ash (RHA) on cement hydration product phases and interfacial transition zone (ITZ) in mortar were investigated from the nano-scale structure perspective. The experimental results indicate that, with the increase of RHA dosages of samples, the volume fraction of high-density calcium-silicate-hydrate (HD C-S-H) in porosity and hydration product phases increases. The volume fractions of HD C-S-H in C-S-H of samples show an increasing trend with the increase of RHA dosages. RHA decreases the thickness of ITZ and increases the matrix elastic moduli of samples, however, the RHA dosoges hardly affect the thickness and elastic moduli.