长江科学院院报2016，Vol.33Issue(8)：120-124,129,6.DOI:10.11988/ckyyb.20150282
矿物掺合料对腐蚀混凝土强度影响及关联分析
Influences of Mineral Admixtures on the Strengths of Corroded Concrete and Corresponding Correlation Analysis
摘要
Abstract
In view of the environmental problem of ammonium sulfate residue caused by rare earth mining in the southern part of Jiangxi , we tested the mechanical properties of corroded concrete and analyzed the regularity of <br> strength deterioration of corroded concrete through tests of corrosion ( by ammonium sulfate solution ) on concretes mixed with fly ash , slag , and both fly ash and slag , respectively .Furthermore , we employed the theory of gray cor-relation to analyze the correlation between strength and mineral admixtures of concrete .Results show that the con-crete mixed with fly ash and slag replacing cement in equal amount could significantly increase the resistance of concrete to ammonium sulfate corrosion; the strength of concrete with high content of mineral admixtures grows slowly, but the resistance to ammonium sulfate corrosion is better;mineral admixtures have good effect in delaying the decline of compressive strength of corroded concrete , but shows worse effect for flexural strength .The results of grey analysis reveal that concretes C 1 (10%dosage of fly ash), C4 (40%dosage of slag), and C5 (50%dosage of slag ) have the best performances in resisting ammonium sulfate corrosion .关键词
混凝土/硫酸铵/粉煤灰/矿渣/双掺/关联度Key words
concrete/ammonium sulfate/fly ash/slag/double mixing/correlation分类
矿业与冶金引用本文复制引用
彭剑,邓通发,朱南海,易道新..矿物掺合料对腐蚀混凝土强度影响及关联分析[J].长江科学院院报,2016,33(8):120-124,129,6.基金项目
江西省自然科学基金项目（2015BAB206054）；江西省交通厅科技项目 （）
