Effect of Alkali Treatment of Straw Fiber on Mechanical Properties of Alkali Slag Cement Composites

In this paper, NaOH solution was used to treat straw fiber modified alkali slag cement, which enhanced the interfacial bonding between straw fiber and cementitious materials. The results showed that the best modification effect of straw fibers was obtained by soaking 3% NaOH solution for 16 hours. T...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-05, Vol.267 (2), p.22028
Main Authors: Xiao, Li-guang, Liu, Xi-xu, Jing-yao, LI
Format: Article
Language:English
Subjects:
Cement
Compressive strength
Fiber composites
Fibers
Flexural strength
Fossil fuels
Interfacial bonding
Mechanical properties
Slag
Slag cements
Sodium hydroxide
Straw
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, NaOH solution was used to treat straw fiber modified alkali slag cement, which enhanced the interfacial bonding between straw fiber and cementitious materials. The results showed that the best modification effect of straw fibers was obtained by soaking 3% NaOH solution for 16 hours. The compressive strength and flexural strength of alkali slag cement specimens cured for 28 days are 81.5 MPa and 10.9 MPa respectively. The toughness of the composites increases with the increase of fiber content. The flexural strength of straw fiber composites treated with NaOH solution and without NaOH solution increased by 5.6% and 11.3% compared with those without NaOH solution, and the compressive strength of straw fiber composites treated with NaOH solution increased by 34.08% compared with those without NaOH solution when the content of straw fiber was 10%.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/267/2/022028