In this paper the properties of the polymer modified cement mortar are studied of DIDY formwork concrete surface coated layer for protection.

本文主要对模网混凝土聚合物改性水泥砂浆保护层的性能进行研究，着重探讨了与耐久性密切相关的抗裂性能和抗渗性能。

R esults show that the modified cement with good durability, small expansion and low alkality can be made by use of gypsum and zeolite modifying alumina cement.

以石膏和沸石对高铝水泥改性，可配制出耐久性良好、具有微膨胀性的低碱度改性水泥。