- 摘 要
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（1 河北地質(zhì)大學勘查技術與工程學院， 石家莊 050031；
2 中鐵隧道勘測設計院有限公司， 天津 300133）
［摘要］為了研究水灰比、砂率和礦物摻合料對混凝土抗硫酸鹽侵蝕的影響，對一系列混凝土試塊進行了干濕循環(huán)后的軸壓試驗，分析了不同次數(shù)干濕循環(huán)下試塊抗壓強度和質(zhì)量變化規(guī)律。結果表明：砂率對硫酸鹽環(huán)境下混凝土質(zhì)量變化及抗壓強度影響很?。凰冶仍叫?，抗硫酸鹽侵蝕能力越強； 摻加礦物摻合料能明顯改善混凝土的抗硫酸鹽侵蝕性能。
［關鍵詞］高性能混凝土； 抗硫酸鹽侵蝕； 抗壓強度變化率； 質(zhì)量變化率； 干濕循環(huán)
中圖分類號：TU528-31文獻標識碼：A文章編號：1002-848X(2017)06-0070-04
Study on resistance sulfate corrosion of high performance concrete
Xie Yongping1, Jia Lei1， Li Shenkui2, Fan Jinsheng1
(1 College of Exploration Technology and Engineering, Hebei GEO University, Shijiazhuang 050031, China; 2 China Railway Tunnel Survey ＆ Design Institute Co．， Ltd．， Tianjin 300133， China)
Abstract:A series of concrete block subjected to axial loading after dry-wet cycle were tested to investigate the effects of water-cement ratio, sand ratio and mineral admixture on the resistance sulfate corrosion of concrete. Change rule of compressive strength and mass were analyzed under the dry-wet circulation with different times. The analysis results show that the effect of sand ratio concrete in sulfate environment can be ignored for mass change and compressive strength change. The smaller the water-cement ratio is, the stronger the sulfate attacks resistance. The mineral admixtures can obviously improve the resistance sulfate performance of the concrete.
Keywords:high performance concrete; resistance sulfate corrosion; compressive strength changing rate; mass changing rate
*國家自然科學基金項目(51408378)，河北省自然科學基金資助項目(E2015403018，E2016403060)，石家莊經(jīng)濟學院博士科研啟動基金資助項目（BQ201520）。
作者簡介：解詠平，博士，副教授，Email:axypa@163.com。
