聚丙烯纤维对磷酸盐混凝土性能的影响  

EFFECTS OF POLYPROPYLENE FIBER ON PROPERTIES OF PHOSPHATE CEMENT-BASED CONCRETE

作　　者：杨全兵[1] 孙莉莎[1] 朱蓓蓉[1] 

机构地区：[1]同济大学材料工程研究所混凝土材料实验室,上海200433

出　　处：《低温建筑技术》2004年第4期1-3,共3页Low Temperature Architecture Technology

基　　金：上海市重点学科 ;西部交通建设科技项目 (2 0 0 1-3 18-788-77)

摘　　要：主要研究了聚丙烯纤维 (PPF)对磷酸盐混凝土性能如流动性、可操作时间、抗折和抗压强度的影响。结果表明 :掺聚丙烯纤维可以改善混凝土的表层质量和韧性 ;提高 1d前的抗折强度 ,但是对抗压强度和 3d以后的抗折强度 ,以及可操作时间影响不明显 ;降低混凝土的流动度。Effects of polypropylene fiber(PPF)on properties of phosphate cement-based concrete,such as flowability,operable time,flexural and compressive strength were investigated.Results showed that the flexural strength before one day,surface quality and toughness of the concrete were improved by the addition of PPF,but the compressive strength,flexural strength after 3days and operable time of the concrete were slightly influenced by PPF.The flowability of the concrete was reduced with the increase of PPF.

关 键 词：聚丙烯纤维 磷酸盐混凝土 强度 可操作时间 流动度 

分 类 号：TU528.572[建筑科学—建筑技术科学]