However, the research on composite mechanism of polymer modified mortar is almost scarce.
对聚合物的作用机理研究几乎还是空白。
The properties of cement mortar modified by hydroxyethyl methyl cellulose and vinyl co-polymer were studied.
研究了羟乙基甲基纤维素和乙烯基共聚物两种聚合物干粉改性砂浆加水搅拌后的性能。
The result shows that both early compressive and flexural strength of the polymer modified mortar are low, but the late strength increases steadily.
结果表明：改性砂浆早期抗压和抗折强度较低，后期强度有较大持续的增长；
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