The effect of high content of fly ash on the properties of glass fiber reinforced cementitious composites

1997 ◽  
Vol 27 (12) ◽  
pp. 1885-1891 ◽  
Author(s):  
Y. Zhang ◽  
W. Sun ◽  
L. Shang ◽  
G. Pan
2013 ◽  
Vol 594-595 ◽  
pp. 629-633 ◽  
Author(s):  
Behzad Nematollahi ◽  
Jay Sanjayan ◽  
Jessie Xia Hui Chai ◽  
Tsui Ming Lu

This paper evaluates the effects of glass fiber addition on the properties of fresh and hardened fly ash based geopolymer concrete (GPC) activated by 8 M NaOH solution (28.6%) + Na2SiO3 (71.4%) with a SiO2/Na2O ratio of 2.0. Glass fibers at the dosages of 0.50%, 0.75%, 1.00% and 1.25% by volume of concrete were added to the GPC mix. The properties of fresh and hardened glass fiber reinforced fly ash based GPC in terms of workability, density, compressive and flexural strengths were compared with those of the fly ash based GPC without using glass fiber. The experimental results indicated that inclusion of the glass fibers resulted in decrease of the workability but increase of the density, compressive and flexural strengths of the fly ash based GPC with increased fiber content.


2013 ◽  
Vol 423-426 ◽  
pp. 1114-1117
Author(s):  
Xiu Ling Li ◽  
Min Luo ◽  
Juan Wang

Green high performance fiber reinforced cementitious composites (GHPFRCC) is a new class of Engineered Cementitious Composites (ECC) with high volume fly ash based on the orthogonal experimental method. Focus is placed on the flexural failure properties of GHPFRCC, considering the influences factors like fly ash content, water-binder ratio, sand-binder ratio, PVA (Polyvinyl Alcohol) fiber and water reducing agent, et al. The experimental results indicate that the failure process of GHPFRCC beam can be divided into three stages including elastic stage, yield stage and failure stage. The multiple fine cracks appeared in the specimen can effectively dissipate energy.


2017 ◽  
Vol 63 (4) ◽  
pp. 83-101 ◽  
Author(s):  
S. Ranjith ◽  
R. Venkatasubramani ◽  
V. Sreevidya

Abstract The durability characteristics of Engineered Cementitious Composites (ECC) with various fibers such as polypropylene and glass were investigated in view of developing composites with high resistance to cracking. ECC offer large potential for durable civil infrastructure due to their high tensile strain capacity and controlled micro-crack width. In this study, fibre volume fractions (0.5%, 1%, 1.5%, and 2%) of both polypropylene and glass fibers varied and durability measures such as a rapid chloride penetration test, sorptivity, water absorption, acid attack, and sulphate attack were measured. Increasing the fiber content up to 1.5% improved the durability properties of ECC. The test results indicate that the glass fiber-reinforced Engineered Cementitious Composites have better durability characteristics than polypropylene fiber-reinforced ECC.


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