聚丙烯复合纤维与聚丙烯纤维的抗裂效果对比及应用  

Contrast and application of anti-cracking ability between polypropylene composite fibre and polypropylene fibre

作　　者：张勇明 李建江[2] 赵伟[3] 沙慧慧 朱瑾 

机构地区：[1]南通四建集团有限公司,江苏南通226001 [2]杭州江南建筑设计院有限公司,浙江杭州310000 [3]江苏省建筑设计研究院有限公司,江苏南京210000 [4]南京派尼尔科技实业有限公司,江苏南京210000

出　　处：《混凝土》2010年第6期143-144,共2页Concrete

摘　　要：通过聚丙烯复合纤维和传统聚丙烯纤维在混凝土塑性及硬化阶段的抗裂效果试验及现场浇筑结果比较。聚丙烯复合纤维因其形成的低强低模-高强高模复合体系可在混凝土凝结硬化的不同时期协同作用,不仅能够阻止混凝土的塑性开裂,而且可推迟硬化阶段裂缝的形成、从而有效控制混凝土硬化阶段的裂缝,达到阶段抗裂、层次抗裂的目的。By the contrast of anti-cracking ability test of concrete and result of cast in-place between Polypropylene composite fibre and Polypropylene fibre,this paper consider that because of the form of low strength and low modulus-high strength and high modulus compound system,Polypropylene composite fibre can Coordination with the different period of harden concrete,it not only can prevent concrete plastic crack,but also can put off the form of crack in harden phase,then control the crack in period of harden concrete effectively,purpose to reach the resistance to cracking of stage and gradation.

关 键 词：聚丙烯复合纤维 混凝土 低强低模-高强高模复合体系 层次抗裂 

分 类 号：TU528.041[建筑科学—建筑技术科学]