粉煤灰改善盐碱湿地水下灌注桩混凝土抗侵蚀性研究  

Improvement Study of Erosion Resistance of Concrete by Fly Ash Underwater Filling Pile in Saline Wetland

作　　者：张登峰 翟春英[2] 魏欢 ZHANG Deng-feng;ZHAI Chun-ying;WEI Huan(Wuhan Gongda Civil Engineering Testing Co,Ltd,Wuhan 430070,China;Tongliao Transportation Construction Bureau,Tongliao 028000,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology, Wuhan 430070,China)

机构地区：[1]武汉工大土木工程检测有限公司,武汉430070 [2]通辽市交通工程局,通辽028000 [3]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070

出　　处：《建材世界》2021年第1期29-33,共5页The World of Building Materials

摘　　要：桥梁桩基耐久性受地质环境的影响很大,针对内蒙古中部地区盐碱湿地环境下的桥梁桩基普遍存在的混凝土遭受硫酸盐侵蚀问题开展配合比设计优化。结合实体工程,采用不同掺量的电厂I级粉煤灰,对其抗侵蚀性能进行分析研究,确定粉煤灰的最佳掺量范围。Durability of bridge pile foundation is significantly affected by geological environment.In order to resolve the sulfate erosion problems under saline wetlands environment in the central region of Inner Mongolia,we carried out the optimization of concrete design.Combined with project,different dosage of grade I fly ash from power plant was used.Furthermore,the erosion resistance of concrete with fly ash was analyzed to determine the optimum content of fly ash.

关 键 词：粉煤灰 盐碱湿地 水下灌注桩混凝土 抗侵蚀性 

分 类 号：TU5[建筑科学—建筑技术科学]