掺入陶粒、粉煤灰和玻璃纤维的聚合物混凝土的力学性能及耐酸腐蚀性

Mechanical Properties and Resistance to Acid Corrosion of Polymer Concrete Incorporating Ceramsite, Fly Ash and Glass Fibers.

作者信息

Shen Yinong, Liu Bo, Lv Jianfu, Shen Manlin

机构信息

Institute of Advanced Engineering Structures and Materials, Zhejiang University, Hangzhou 310058, China.

College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, China.

出版信息

Materials (Basel). 2019 Jul 31;12(15):2441. doi: 10.3390/ma12152441.

DOI:10.3390/ma12152441

PMID:31370235

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6696480/

Abstract

A novel polymer concrete (PC) using an aggregate of ceramsite, fly ash and glass fiber was created. Specimens were used in experiments to investigate its anticorrosion properties to determine the viability of its use in flue gas desulfurization (FGD) stacks. The inclusion of ceramsite reduces both the weight and the cost of the material. The effects of ceramsite and glass fiber on the flexural strength and compressive strength of the concrete were investigated. The experimental results showed that ceramsite reduces the flexural strength and the compressive strength of the concrete, but that the glass fiber increases both. Surface resistance to sulfuric acid corrosion and the microstructure of the corroded concrete were investigated. Specimens of the novel PC and the control PC strongly resisted acid corrosion. Although the specimen surfaces deteriorated, the interior structure of the PC was unaffected after 50 days of acid immersion. Processes by which sulfuric acid corrodes PC surfaces were determined.

摘要

制备了一种新型聚合物混凝土（PC），其使用陶粒、粉煤灰和玻璃纤维作为骨料。使用试件进行实验，以研究其防腐性能，从而确定其在烟气脱硫（FGD）烟囱中使用的可行性。陶粒的加入降低了材料的重量和成本。研究了陶粒和玻璃纤维对混凝土抗折强度和抗压强度的影响。实验结果表明，陶粒降低了混凝土的抗折强度和抗压强度，但玻璃纤维则提高了两者的强度。研究了新型PC和对照PC对硫酸腐蚀的表面抗性以及腐蚀后混凝土的微观结构。新型PC试件和对照PC试件对酸腐蚀具有很强的抗性。尽管试件表面出现劣化，但在酸浸泡50天后，PC的内部结构未受影响。确定了硫酸腐蚀PC表面的过程。