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Influence of Epoxy Resin Emulsion Without Curing A…
Author:YAN Peiyu1  YUE Lei1  DAI Dan2  LUO Yuwei2 
Unit:1. Department of Civil Engineering  Tsinghua University  Beijing 100084  China  2. China Oilfield Services Limited  Yanjiao 065201  Hebei  China 
Keyword:epoxy resin emulsion  cement paste  hydration process 
Classification:TE256
Year,volume(Issue):page number:2017,45(5):608-613
Summary:

 Epoxy resin modified cement pastes containing different percentages of emulsion were prepared using two kinds of epoxy resin emulsions with different polymerization degrees. The influence of epoxy resin emulsion without curing agent on the early hydration process of oil well cement pastes was investigated at different temperatures using isothermal hydration heat evolution, scanning electron microscopy and X-ray diffraction. The results show that the hydration process of epoxy resin modified cement pastes is delayed, compared to that of blank cement pastes, while their hydration products are similar. There is an epoxy resin film wrapping the particles in hardened cement pastes, which can fill the capillary pores of cement stones. Hence, the compressive strength of cement stones increases slightly as the content of epoxy resin emulsion increases.

Foundation item:
国家自然科学基金项目(No. 51678344,No. 51678343)。
About The Author:
阎培渝(1955—),男,博士,教授。
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