摘要
试验研究了蒸养制度中预养时间、恒温温度、恒温时间等影响因素对混凝土强度及抗氟离子渗透性能的影响,以及矿物外加剂对蒸养条件下混凝土两者性能的改善作用.试验结果表明在水泥混凝土中掺加矿物外加剂,不仅对蒸养混凝土的强度无不利影响,而且可以明显改善其抗氯离子渗透性能,这种改善效果在矿物外加剂占胶凝材料总量的30%的情况下粉煤灰单掺及粉煤灰与硅灰复掺比例为80:20时最佳.
the test studied the influences of pre-curing time, temperature and time of constant temperature etc. factors from the steam curing system on concrete strength and ability to resist chloride ion penetration, It also studied the improvement effect of mineral admixture on the both properties, The test result showed that it not only had no unfavorable influence , but also could significantly improve its ability to resist chloride ion penetration, The improvement effect was best when fly ash single doping or fly ash and silica fume compounding proportion being 80： 20 on condition of the mineral admixture occuping 30% of cementing material.
出处
《福建建材》
2008年第4期14-18,共5页
Fujian Building Materials
关键词
蒸养制度
抗氯离子渗透性能
胶凝材料
steam curing system
ability to resist chloride ion penetration
cementing material.
