聚丙烯纤维增强膨胀混凝土阻裂抗渗性能研究  

STUDY ON THE ANTI-CRACKING AND IMPERMEABILITY PROPERTIES OFPOLYPROPYLENE FIBER REINFORCED EXPANSIVE CONCRETE

作　　者：孙道胜[1] 邓敏[1] 唐明述[1] 黄小明[2] 潭麦秋[2] 

机构地区：[1]南京工业大学,南京210009 [2]空军后勤部机场营房部,北京100720

出　　处：《工业建筑》2004年第3期49-51,64,共4页Industrial Construction

基　　金：国家 973计划项目 (编号 :2 0 0 1CB610 70 5 );安徽省教育厅自然科学重点项目 (编号 :2 0 0 2KJ0 82ZD);江苏省重点实验室开放课题资助

摘　　要：研究了聚丙烯纤维和微膨胀复合对混凝土抗折强度、抗渗性和收缩变形的影响。研究表明 ,聚丙烯纤维和膨胀剂复合与聚丙烯纤维或膨胀剂单一作用比 ,2 8d抗折强度分别提高 7 5 %和 9 9% ,渗水高度分别降低 4 6 %和 6 1% ,阻裂效果显著提高 ;纤维对膨胀混凝土 7～The influence of compounding polypropylene fiber and expansion on flexure strength,impermeability and the shrinkage deformation is studied.The experimental results show the comparing with the single effect of either polypropylene fiber or expansive agent,the compounding of them can enhance 28 days flexure strength by 7^5% and 9^9% and reduce the permeability height by 46% and 61% separately and it can also sharply increase the anti-cracking property.The polypropylene fiber can obviously restrict the 7～14 days expansion of expansive concrete.

关 键 词：聚丙烯纤维 膨胀混凝土 阻裂 抗渗 抗折强度 收缩变形 

分 类 号：TU528[建筑科学—建筑技术科学]