Fracture characterization of multi-layer wire mesh rubberized ferrocement composite slabs by means of acoustic emission

JOURNAL OF CLEANER PRODUCTION

卷:157

Article

Behnia, Arash¹  Ranjbar, Navid²  Chai, Hwa Kian³  Abdullah, Aziz. L.⁴  Masaeli, Mahyar⁵ 

[1] Monash Univ, Sch Engn, Discipline Civil Engn, Sunway Campus, Subang Jaya, Selangor, Malaysia

[2] Shiraz Univ, Civil Engn Dept, Engn Fac, Shiraz, Iran

[3] Univ Edinburgh, Sch Engn, Civil & Environm Engn, Edinburgh, Midlothian, Scotland

[4] Univ Malaya, Fac Engn, Dept Civil Engn, Kuala Lumpur, Malaysia

[5] Griffith Univ, Griffith Sch Engn, Gold Coast, Australia

关键词: Composite ferrocement slabs;    Rubberized self-compact mortar;    Acoustic emission (AE);    Fracture monitoring;    Composite slab;    Non-destructive testing;   

DOI  :  10.1016/j.jclepro.2017.03.192

来源: Elsevier

【 摘 要 】

This study investigated the fracture behaviour of multi-layer ferrocement composite slabs with partial replacement of tire rubber powder as filler utilizing acoustic emission (AE) technique for characterization. Ferrocement slab specimens prepared using normal-compact cement mortar, self-compact cement mortar, fly ash, and rubberized self-compact cement mortar -with varying steel mesh reinforcement layers were statically loaded to failure. The inclusion of 10% rubber powder (by weight) was found capable of altering the failure mode of composite slabs from brittle to ductile with a slight reduction in the ultimate flexural strength. Fracture development of the specimens was closely monitored using AE for enhanced characterization. It is seemingly evident that the measured AE parameters could be effectively processed to distinguish different modes of fracture. The collected AE data was utilized to quantify stiffness reduction in the specimens due to progressive damage. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

Free