铝酸盐水泥掺量对早强聚丙烯纤维砂浆性能影响研究.pdf

2014年3月上 施工技术 第43卷第5期 CONSTRUCTION TECHNOLOGY D0I:10.7672/5j52014050001 铝酸盐水泥掺量对早强聚丙烯纤维砂浆性能影响研究* 孙长征1 2，刘欢1，赵同峰.3 (1.沈阳建筑大学土木工程学院，辽宁沈阳110168；2.沈阳建筑大学建筑设计研究院，辽宁沈阳110015； 3.辽宁省交通高等专科学校道路与桥梁工程系，辽宁沈阳110122) [摘要]通过向4种不同砂率的水泥砂浆中分别掺入3种不同百分比的铝酸盐水泥进行对比分析试验，找出最佳 铝酸盐水泥掺量.在此基础上，为了进一步改善砂浆的力学性能，通过向早强砂浆中掺入6种不同体积掺量的聚 丙烯纤维，进行对比分析试验，提出聚丙烯纤维的最佳掺量.结果表明：当铝酸盐水泥掺量为5%时，聚丙烯纤维体 积掺量在0.2%-0.4%时.基体3d抗折、抗压强度可分别达到12.1MPa和57.3MPa.且强度后期不倒缩.28d抗压 强度可达到91.7MPa.该体系的SEM微观图貌显示，水泥水化充分，结构致密无裂纹. [关键词]砂浆；早强；砂率；聚丙烯纤维 [中图分类号]TU528.53;TQ177.6 [文献标识码]A [文章编号]1002-8498(2014)05-0001-04 Study on the Effect of Aluminate Cement Content on Polypropylene Fiber Mortar with Early Strength Sun Changzheng2 Liu Huan' Zhao Tongfeng. (1.School of Ciil Engineering Shenyang Jianzhu Unirersity Shenyang Liaoning 110168 China; 2.Architectural Design Research Institute Shenyang Jianzhu University Shenyang Liaoning 110015 China; 3.Department of Road and Bridge Liaoning Provincial College of Communications Shenyang Liaoning 110122 China) Abstract:Through the parative analysis of the test in which three kinds of different percentage of aluminate cement is added to four different sand ratio of cement mortar to find out the best content of aluminate cement.On the basis in order to further improve the mechanical properties of mortar through the parative analysis of the test in which six kinds of volume content of polypropylene fiber is added to the early strength cement mortar to find out the best content of polypropylene fiber.The results ...