Effect of alkali treatment of Jute fibers on the compressive strength of normal-strength concrete members strengthened with JFRP composites

被引：6
|
作者：
Ed-Dariy, Yasmina [1 ]
Lamdour, Nouzha [1 ]
Cherradi, Toufik [1 ]
Rotaru, Ancuta [2 ]
Barbuta, Marinela [2 ]
Mihai, Petru [2 ]
机构：
[1] Mohammed V Univ Rabat, Mohammadia Sch Engineers, Rabat, Morocco
[2] Gheorghe Asachi Tech Univ Iasi, Fac Civil Engn & Bldg Serv, Iasi, Romania
来源：
JOURNAL OF APPLIED SCIENCE AND ENGINEERING | 2020年 / 23卷 / 04期
关键词：
JFRP composites; Epoxy resin; Reinforcement; Alkaline treatment; Concrete; MECHANICAL-PROPERTIES; NATURAL FIBERS; BEAMS; BEHAVIOR;
D O I：
10.6180/jase.202012_23(4).0012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The main objective of this experimental study is to evaluate the behavior of concrete members strengthened with Jute fibers reinforced polymer (JFRP). The fibers treated in an alkaline treatment of 4% of the NaOH solution during 24, and 48 hours using 10:1, and 15:1 of liquor ratios. Sixteen samples of concrete reinforced by JFRP are subjected to a compression test. The main issues investigated are the ultimate load, load-displacement behavior, failure modes and the effect of treatment on fiber and composites morphology. The results indicated that for the specimens reinforced by fibers treated during 24h in 10:1 liquor ratio have shown an increase of ultimate load capacity comparing to untreated and unreinforced specimens. However, for specimens treated for 48 h in 10:1 liquor ratio, a relatively slight increase in the ultimate load was observed. On the other hand, a slight degradation was witnessed in the specimens treated in 15:1 liquor ratio for both cases 24h and 48h treatment, respectively. A reduced number of cracks and failures appeared on the treated specimens comparing to untreated ones.
引用
收藏
页码：677 / 685
页数：9
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