【作者】 张勇； 杜修力； 李悦； 杨富民；

【Author】 Zhang Yong~(1,2),Du Xiu-li~2,Li Yue~2,Yang Fu-min~1 (1 Railway Engineering Research Institute,China Academy of Railway Science,Beijing 100081, China 2 Beijing University of Technology,Beijing 100022,China)

【机构】 中国铁道科学研究院铁道建筑研究所； 北京工业大学；

【摘要】 通过选取具有工程代表性的混凝土配合比,对影响混凝土电通量的多个因素进行了系列试验研究,分析得出掺合料种类及掺量和养护龄期是电通量影响主要因素,并对混凝土电通量的测试结果起决定性的作用。配合比设计要注意掺合料的选用和掺量控制的原则,测试时要按养护龄期测试以保证结果准确性。混凝土水胶比、含气量、水泥和外加剂则为混凝土电通量次要影响因素。在一定范围内,外掺氯离子对混凝土电通量测试结果影响程度很小。更多还原

【Abstract】 By selecting project representative of series concrete mix,experimental study and analyze factors affecting concrete chloride ion(short for cl~-) penetration.Those types of mineral admixtures and addition volume and concrete curing age are main factors on the concrete cl~- penetration test results and played a decisive role.Mix design should pay attention to selection of mineral admixture and addition volume control principles,tests to emphasis concrete curing age to ensure accuracy.Water binder ratio,air content of concrete,cement and admixture for concrete cl" penetration are less important affecting factor.In a certain range,mixed with cl" matter in concrete,test result effect is minor.更多还原