矿粉掺量对受酸雨侵蚀混凝土性能劣化规律的影响
the Effects of Ground Granulated Blast Furnace Slag(GGBFS) Contents on Deterioration Law of Concrete under Acid Rain Attack
关键词:
矿粉;混凝土;酸雨侵蚀;劣化规律;最佳掺量
Key words:
GGBFS; Concrete; Acid rain attack; Deterioration law; Optimum mix amount
刊期:
2018年第6期
DOI:
文章编号:
1000-4637(2018)06-16-04
基金项目:
基金项目:国家自然科学基金项目(51372185)。
作者:
唐守峰,尹立愿,李北星,张士山,张亚明
单位:
武汉理工大学硅酸盐建筑材料国家重点实验室,430070
摘要
摘 要:模拟了混凝土受酸雨侵蚀的试验,从质量、抗压强度、吸水率、酸性化深度等方面研究了矿粉掺量(0~40%)对受酸雨侵蚀混凝土性能劣化规律的影响。结果表明:矿渣粉在酸雨侵蚀早期能发生活性效应,提高混凝土浆体致密性。在1~2个月后,酸雨侵蚀速率较侵蚀初期有所下降。当矿粉掺量在20%~30%时,混凝土的抵抗酸雨侵蚀性能最佳。
Abstract:The test on the concrete under acid rain attack is simulated to study the effects of Ground Granulated Blast Furnace Slag (GGBFS ) contents (0~40%)on the concrete deterioration in terms of mass, compressive strength, water absorption and acidification depth. The results show that GGBFS can exert activity effects in the early age of acid rain attack and enhance the compactness of concrete structure. After exposure for 1~2 months, the deterioration rate of acid rain gets slower compared with the early age. And concrete with GGBFS dosage of 20%~30% is observed to have the optimal performance under acid rain attack.
结论
参考文献
引用本文
唐守峰,尹立愿,李北星,等.矿粉掺量对受酸雨侵蚀混凝土性能劣化规律的影响[J].混凝土与水泥制品,2018(6):16-19.
TANG S F,YIN L Y,LI B X,et al.The Effects of Ground Granulated Blast Furnace Slag (GGBFS) Contents on Deterioration Law of Concrete under Acid Rain Attack[J].China Concrete and Cement Products,2018(6):16-19.
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