摘要
采用钨酸钠制备了抗腐蚀混凝土,通过统计藤壶数量,分析了钨酸钠对藤壶的抑制效果;通过测试抗压强度、劈裂抗拉强度及抗氯离子渗透性,分析了钨酸钠对混凝土力学性能与耐久性能的影响。结果表明:藤壶的抑制效果随着钨酸钠掺量的增加而提高;混凝土抗压与劈裂抗拉强度随着钨酸钠掺量的增加而提高,钨酸钠的高效抗菌作用降低了藤壶附着所引起的腐蚀作用,钨酸钠掺量为2%时,试件的抗压及劈裂抗拉强度较空白组分别提高了1.2%、1.3%;钨酸钠掺入降低了混凝土的电通量,钨酸钠掺量为2%时,试件的电通量较空白组下降了13.4%;藤壶的附着提高了混凝土的抗氯离子渗透性。
In this paper corrosion-resistant concrete was prepared using sodium tungstate,and analyzed the inhibition effect of sodium tungstate on barnacles by counting the number of barnacles;the effect of sodium tungstate on the mechanical properties and durability of concrete was analyzed by testing the compressive strength,splitting tensile strength and chloride ion penetration resistance.The results showed that the inhibition effect of barnacles increased with the increase of sodium tungstate,the compressive strength and splitting tensile strength of concrete increased with the increase of sodium tungstate.The efficient antibacterial effect of sodium tungstate reagent reduced the corrosive effect caused by barnacle adhesion,and the compressive strength and splitting tensile strength of 2%sodium tungstate specimens increased by 1.2%and 1.3%,respectively,compared with the blank group.Sodium tungstate incorporation reduced the electric flux of concrete,and the electric flux of 2%sodium tungstate specimens decreased by 13.4%compared with the blank group.The attachment of barnacles improved the chloride ion penetration resistance of concrete.
作者
陈建国
梁锦程
杜威莲
程嘉明
朱玉灵
郑修宝
CHEN Jianguo;LIANG Jincheng;DU Weilian;CHENG Jiaming;ZHU Yuling;ZHENG Xiubao(Guangxi Key Laboratory of Water Engineering Materials and Structures,Guangxi Institute of Water Resources Research,Nanning 530023,China;School of Water Conservancy Engineering,Zhengzhou University,Zhengzhou 450001,China;College of Mechanics and Materials,Hohai University,Nanjing 211106,China)
出处
《新型建筑材料》
2023年第2期15-18,共4页
New Building Materials
基金
国家自然科学基金项目(52169024,42172287)。
关键词
钨酸钠
藤壶
混凝土
抗压强度
抗氯离子渗透性
sodium tungstate
barnacles
concrete
compressive strength
anti-chlorine ion permeability
