Effects of boiling and fiber length on the resistivity of coconut-fiber-reinforced mortar

被引：2

作者：

Mallu, Lili Lorensia ^{[1
]}

Hou, Tsung-Chin ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Civil Engn, Tainan, Taiwan

来源：

CASE STUDIES IN CONSTRUCTION MATERIALS | 2024年 / 20卷

关键词：

Natural fiber; Electrical resistivity; Microstructural degradation; Fiber pullout; ELECTRICAL-RESISTIVITY; MECHANICAL-PROPERTIES; COMPRESSIVE STRENGTH; CONSTRUCTION MATERIALS; CEMENT; COIR; CONCRETE; COMPOSITES; PERFORMANCE; HYDRATION;

D O I：

10.1016/j.cscm.2024.e03177

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study measured the resistivity, tensile strength, water absorption, and compressive strength of CF-reinforced mortars (CFRMs) prepared from boiled or raw CFs of various lengths (1.5, 2.5, or 4 cm) at 2.9 wt% in accordance with ACI 544. Scanning electron microscopy investigations of the microstructure revealed that boiling CFs increased their number of open pores (lumen), leading to higher water absorption and lower tensile strength. Resistivity tests revealed that the raw-fiber CFRMs had higher resistivity than the boiled-fiber CFRMs and increased resistivity with decreased fiber length. Finally, strong linear relationships of resistivity with compressive strength and water absorption were identified.

引用

页数：12

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