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中文摘要：
通过抗冻性试验、压汞试验、孔间距系数试验测定了不同含气量下水泥砂的浆孔结构特征及其抗冻性，研究了抗冻性与孔结构之间的关系，此外，还分析了不同含气量水泥砂浆的抗压强度。试验结果表明：含气量的增加使水泥砂浆孔隙率、总孔体积、总孔面积、平均孔径均增加，孔间距系数减小，改善了其内部孔结构，孔径分布也比较均匀合理，虽然其强度有所降低，但大大提高了抗冻性。
英文摘要：
Through the frost resistance test, mercury intrusion test, hole spacing coefficient test to determine the cement mortar pore structure characteristics and the frost resistance under different air content, study the relationship between frost resistance and cement mortar pore structure characteristics,in addition, also analyzed the compressive strength of cement mortar under different air content. Ex- perimental results show that the as increase of air content the pore porosity of cement mortar, total pore volume, total hole area, average pore diameter are all increased, hole spacing coefficient decreases, and improved pore structure internal of cement mortar , and pore size distribution more uniform and reasonable, although the strength decreases a bit. but the frost resistance was improved greatly.
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