超高性能混凝土抗污水腐蚀性能研究

杨医博; 岳晓东; 郑福斌; 刘福财; 郭文瑛; 王恒昌

doi:10.13204/j.gyjz202004015

超高性能混凝土抗污水腐蚀性能研究

doi: 10.13204/j.gyjz202004015

1. 华南理工大学土木与交通学院, 广州 510640;
2. 华南理工大学亚热带建筑科学国家重点实验室, 广州 510640;
3. 广东盖特奇新材料科技有限公司, 广东清远 511500

基金项目:

华南理工大学亚热带建筑科学国家重点实验室自主研究课题项目（2016KB14）。

详细信息

作者简介:
杨医博,男,1977年出生,博士,副教授。电子信箱:yangyibo@scut.edu.cn

计量
- 文章访问数: 64
- HTML全文浏览量: 4
- PDF下载量: 1
- 被引次数: 0
出版历程
- 收稿日期: 2019-10-15

RESEARCH ON SEWAGE CORROSION RESISTANCE OF ULTRA HIGH PERFORMANCE CONCRETE

1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China;
2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China;
3. Guangdong Gaiteqi New Material Technology Co., Ltd., Qingyuan 511500, China

摘要

摘要: 为解决混凝土排水管使用过程中受污水腐蚀而过早破坏的问题，提出采用超高性能混凝土（UHPC）替代普通混凝土的技术思路。为研究其可行性，进行了UHPC抗污水腐蚀性能的试验研究。采用模拟工业废水、无机酸、有机酸等三种模拟污水溶液，对比研究UHPC和普通混凝土的抗污水腐蚀性能。研究表明：在三种不同溶液浸泡情况下，UHPC也会受到腐蚀，但其抗污水腐蚀性能要明显优于普通混凝土；在腐蚀最为严重的有机酸溶液中，普通混凝土浸泡6个月后抗压强度几乎丧失，而UHPC还能保持70%的抗压强度；UHPC内部结构十分致密，孔隙率极低，外界腐蚀离子只能通过表层进行腐蚀，这是其具有优异抗污水腐蚀性能的主要原因。以UHPC取代普通混凝土，能够有效解决混凝土排水管易受污水腐蚀、寿命不足的问题。虽然UHPC排水管的材料单价较高，但其壁厚和自重较低、管道寿命大幅延长、维修次数大幅减少，其全寿命周期的综合成本将低于普通混凝土排水管。
- 超高性能混凝土 /
- 普通混凝土 /
- 抗污水腐蚀 /
- 排水管 /
- 耐久性
Abstract: In order to solve the problem of premature destruction of concrete drains during sewage treatment, the idea of using ultra high performance concrete (UHPC) instead of ordinary concrete was put forward. For study the feasibility, simulated industrial wastewater solution, inorganic acid solution and organic acid solution were used to simulate sewage condition, the sewage corrosion resistance of UHPC and ordinary concrete were compared. Study result shows UHPC is corrode also, however performs apparently better than ordinary concrete in sewage corrosion resistance. Under organic acid solution that was proved the strongest corrosion solution condition, after 6 months soaking, UHPC still has nearly 70% compressive strength of the pure water condition, while ordinary concrete almost breaking up. The outstanding corrosion resistance against sewage of UHPC due to its dense internal structures and low porosity which could limit the occurrence of corrosion only at the surface. The conclusion was using UHPC instead of ordinary concrete could solve the problem of premature destruction of concrete drains during sewage treatment. Despite UHPC is expensive, the comprehensive cost of UHPC drain pipe in life circle is lower than that made by ordinary concrete due to UHPC drain pipe's thin wall, light weight, longer life and much more lower maintenance frequency.
- UHPC /
- ordinary concrete /
- sewage corrosion resistance /
- drain pipe /
- durability

HTML全文

参考文献(22)

王丰建.广州市市政排水管材的应用现状及发展对策研究[D].广州:华南理工大学,2014.

郑福斌.超高性能混凝土排水管道的制备及性能研究[D].广州:华南理工大学,2016.

中国国家标准化管理委员会. 活性粉末混凝土:GB/T 31387-2015[S].北京:中国标准出版社,2015.

SMARZEWSKI P, BARNAT-HUNEK D. Effect of Fiber Hybridization on Durability Related Properties of Ultra-High Performance Concrete[J]. International Journal of Concrete Structures & Materials,2017,11(2):315-325.

ABBAS S, SOLIMAN A M, NEHDI M L. Exploring Mechanical and Durability Properties of Ultra-High Performance Concrete Incorporating Various Steel Fiber Lengths and Dosages[J]. Construction & Building Materials,2015,75:429-441.

李涛.模拟海水拌合的UHPC中钢筋锈蚀的研究[D].长沙:湖南大学,2016.

ALKAYSI M, EL-TAWIL S, LIU Z C, et al. Effects of Silica Powder and Cement Type on Durability of Ultra High Performance Concrete (UHPC)[J]. Cement & Concrete Composites,2016,66:47-56.

GU C P,SUN W,GUO L P, et al. Effect of Curing Conditions on the Durability of Ultrahigh Performance Concrete Under Flexural Load[J]. Journal of Wuhan University of Technology,2016,31(2):278-285.

ABBAS S,NEHDI M L,SALEEM M A. Ultra-High Performance Concrete:Mechanical Performance, Durability, Sustainability and Implementation Challenges[J]. International Journal of Concrete Structures & Materials,2016,10(3):271-295.

王德辉. 超高性能混凝土在中国的研究和应用[J].硅酸盐通报,2016,35(1):141-149.

GHASEMI S, ZOHREVAND P, MIRMIRAN A, et al. A Super Lightweight UHPC-HSS Deck Panel for Movable Bridges[J]. Engineering Structures,2016,113:186-193.

TAZARV M, SAIIDI M S.UHPC-filled Duct Connections for Accelerated Bridge Construction of RC Columns in High Seismic Zones[J].Engineering Structures,2015,99:413-422.

STANIC N,CLEMENS F H L R,Langeveld J G. Estimation of Hydraulic Roughness of Concrete Sewer Pipes by Laser Scanning[J]. Journal of Hydraulic Engineering,2016,143(2).DOI: 10.1061/(ASCE)HY.1943-7900.0001223.

FAIRFIELD C A. Cavitation Damage to Potential Sewer and Drain Pipe Materials[J]. Wear,2014,317(1/2):92-103.

HUDON E, MIRZA S,FRIGON D. Biodeterioration of Concrete Sewer Pipes:State of the Art and Research Needs[J]. Journal of Pipeline Systems Engineering & Practice,2011,2(2):42-52.

STANIC N,LANGEVELD J,SALET T, et al. Relating the Structural Strength of Concrete Sewer Pipes and Material Properties Retrieved from Core Samples[J]. Structure & Infrastructure Engineering,2016,13(5):637-651.

MAEDER U,GAMBOA IL,CHAIGMON J,et al.Ceracem, A New High Performance Concrete:Characterizations and Applications[C]//First International Symposiumon Ultra High Performance Concrete.2004:59-68.

李登华.改性混凝土耐污水腐蚀机理和性能试验研究[D].郑州:郑州大学,2006.

魏礼凯.混凝土污水管道的抗侵蚀寿命设计[J]. 江苏开放大学学报,2004,15(3):41-43.

韩静云,田永静,陈汉忠.污水中好氧菌对混凝土排污管管壁腐蚀的研究[J]. 混凝土与水泥制品,2001(3):23-25.

张小伟,韩静云,郜志海.两种酸对混凝土腐蚀的对比试验研究[J]. 混凝土与水泥制品,2003(5):8-12.

中华人民共和国国家质量技术监督局.水泥胶砂强度检验方法(ISO法):GB/T 17671-1999[S]. 北京:中国标准出版社,1999.

施引文献

资源附件(0)

访问统计