Microstructural analysis during the hydration of cement-in-polymer coatings

被引：3
|
作者：
Weichold O. [1 ]
Hojczyk M. [1 ]
Adams A. [2 ]
Olaru A. [2 ]
Stanjek H. [3 ]
机构：
[1] DWI An der RWTH Aachen E.V., Institute for Technical and Macromolecular Chemistry, RWTH Aachen University
[2] Institute for Technical and Macromolecular Chemistry, RWTH Aachen University
[3] Department of Clay and Interface Mineralogy, RWTH Aachen University
来源：
Key Engineering Materials | 2011年 / 466卷
关键词：
Hydration; Nuclear magnetic resonance; Polymer coating; Reinforced concrete; Scanning electron microscopy; X-ray diffraction;
D O I：
10.4028/www.scientific.net/KEM.466.159
中图分类号：
学科分类号：
摘要：
Cement-in-polymer (c/p) dispersions allow the full utilisation of the reinforcing abilities of multifilament rovings in concrete. In this work the role of the polymer properties on the performance of the c/p dispersions is investigated and discussed. Two model polymers are chosen and c/p dispersions made with these are investigated regarding the water ingress velocity (NMR), the phase development during cement hydration (XRD), and the microstructure after cement hydration (SEM). Best mechanical performance is achieved with the hydrophobic poly(vinyl acetate) which regulates the water ingress and causes a slow hydration of the cement. © (2011) Trans Tech Publications, Switzerland.
引用
收藏
页码：159 / 166
页数：7
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