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基于加入亚硝酸钠的硫铝酸盐水泥应用于冬施中，用ＸＲＤ、水银压入法测孔及强度测试方法，对加入亚硝酸钠的硫铅酸盐水泥的负温性能进行研究。得到了亚硝酸盐钠作为防冻剂的最佳掺量。
Based on the addition of sodium nitrite sulphoaluminate cement for winter application, the negative temperature performance of sulfur-lead-acid cement with addition of sodium nitrite was investigated by XRD, mercury intrusion measurement and strength testing. The optimum dosage of sodium nitrite as antifreeze was obtained.