Multiple cracking response of plasma treated polyethylene fiber reinforced cementitious composites under flexural loading

被引：61

作者：

Tosun, Kamile ^{[1
]}

Felekoglu, Burak ^{[1
]}

Baradan, Bulent ^{[1
]}

机构：

[1] Dokuz Eylul Univ, Dept Civil Engn, Izmir, Turkey

来源：

CEMENT & CONCRETE COMPOSITES | 2012年 / 34卷 / 04期

关键词：

Polyethylene; Plasma; Fiber reinforced cementitious composites; Multiple cracking behavior; SURFACE MODIFICATION; DENSITY POLYETHYLENE; BEHAVIOR; AR; PERFORMANCE; MORPHOLOGY; INTERFACE; FILMS;

D O I：

10.1016/j.cemconcomp.2011.12.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The effects of low frequency cold plasma treatments on the microstructure and chemistry of Polyethylene (PE) have been investigated. PE plates and fibers were exposed to plasmas of argon and oxygen gases. The surface wettabilities of plasma-treated plates were monitored. Possible physical changes on fiber surfaces were observed by a scanning electron microscope (SEM) at micrometer scale and by an atomic force microscope (AFM) at nanometer scale after this process. The effects of plasma treatment on surface chemistry of PE fibers have been analyzed by using an X-ray photoemission spectroscope (XPS). The fibers modified by plasma treatments were used in prismatic cementitious composites. The flexural performance of samples were characterized at two different ages (28 days and 8 months). Results showed that plasma treatment caused significant modifications on fibers' surface structure and composites' performance. Proper plasma treatment conditions significantly leads to improvement of multiple cracking behavior of fiber reinforced composites. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：508 / 520

页数：13

共 42 条

[1] Tensile strain hardening behaviour of hybrid steel-polyethylene fibre reinforced cementitious composites [J].