摘要
内养护技术可以显著改善混凝土的性能。试验利用超吸水聚合物对混凝土进行内养护,研究了混凝土的抗冻性能。试验结果表明,不论是单掺超吸水聚合物还是超吸水聚合物与粉煤灰复掺,均可改善混凝土的抗冻性,250次冻融循环后混凝土抗压强度较空白混凝土少损失4%~8%。
Internal curing is especially beneficial to improve concrete performance. Internal curing of concrete is carried out by using the super absorbent polymer, and the frost resistance of concrete is studied. The results indicate that whether the super absorbent polymer (SAP) or double mixed with SAP and fly ash, can improve the frost resistance of concrete and its strength loss after 250 freezethaw cycles is 4%-8% lower than the blank sample.
出处
《混凝土与水泥制品》
北大核心
2010年第1期1-3,共3页
China Concrete and Cement Products
基金
国家自然科学基金资助项目(50569003)
宁夏自然科学基金重点项目(NZ0510)
关键词
超吸水聚合物
内养护
粉煤灰
抗冻性
Super absorbent polymer
Internal curing
Fly ash
Frost resistance