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

页码：677 / 685

页数：9

共 33 条

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