Biogenic sulfuric acid corrosion resistance of new artificial reef concrete

被引：41
|
作者：
Yang, Yu [1 ,2 ]
Ji, Tao [1 ,2 ]
Lin, Xujian [2 ]
Chen, Caiyi [2 ]
Yang, Zhengxian [1 ,2 ]
机构：
[1] Fuzhou Univ, Res Ctr Adv Civil Engn Mat, Fuzhou 350116, Fujian, Peoples R China
[2] Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 158卷
基金：
中国国家自然科学基金;
关键词：
Artificial reef concrete; Biogenic sulfuric acid corrosion; Sulphoaluminate cement; Apparent roughness; OF-THE-ART; OXIDIZING BACTERIA; ATTACK; CEMENT; SEWERS; SPECTROSCOPY; DURABILITY; PORTLAND; WASTE;
D O I：
10.1016/j.conbuildmat.2017.10.007
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Through biogenic sulfuric acid attack on concrete, comparisons between ordinary Portland cement concrete (OPCC) and new artificial reef concrete (NARC) prepared with sulphoaluminate cement, marine sand and sea water were made. Biogenic sulfuric acid corrosion resistance was studied by analyzing the surface and localized morphology, mass loss and compressive strength of both concrete specimens. The corrosion products were investigated by environmental scanning electron microscope (ESEM), Xray diffraction (XRD) and Fourier-transform infrared (FT-IR). Results showed that the visually apparent corrosion degree and loss rates of mass and compressive strength are higher for OPCC than for NARC following exposure to biogenic sulfuric acid. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：33 / 41
页数：9
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