Institution:土建与水利学院

Title of Paper:Effect of micro-cellulose fiber on the mechanical, shrinkage properties and ballistic impact resistance of high-performance cement composites

Journal:Construction and Building Materials

Key Words:Cellulose fiber; Internal curing; Autogenous shrinkage; Projectile impact; High performance concrete

Summary:This study presents an experimental investigation on the feasibility of adopting micro-cellulose fiber as not only internal curing but also micro-reinforcement agents for high-performance cement composites (HPCs). The effect of micro-cellulose fiber on the ballistic impact resistance, in terms of penetration depth, crater diameter, volume, profile and cracking pattern, as well as physical, mechanical and shrinkage properties is explored. It was found that the incorporation of micro-cellulose fiber in HPCs leads to a significant decrease of the penetration depth (13.6 %), crater diameter and volume (27.6 %). The autogenous and drying shrinkage of HPCs at various ages up to 91 days are significantly reduced due to the addition of micro-cellulose fiber. Furthermore, incorporating micro-cellulose fiber does not have a significant effect on the early-age compressive and flexural strengths, but increases the late-age compressive and flexural strengths. With the aid of micro-cellulose fiber, HPCs with excellent ballistic impact resistance and volume stability can be successfully fabricated. The results of this study contribute towards the implementation of HPCs in in-situ application for protective structures where autogenous shrinkage and related cracking are highly problematic.

First Author:Fengling Zhang

Correspondence Author:Jinglong Li

All the Authors:Kai Pang,Wenlong Xu,Junjie Du,Jialiang Wang,Jie Zhang,Qifang Liu,Huigang Xiao

Indexed by:Journal paper

Document Code:1889211696247349249

Discipline:Engineering

First-Level Discipline:Civil Engineering

Document Type:J

Volume:463

Page Number:139963

Impact Factor:8.0

Number of Words:10

Translation or Not:No

Date of Publication:2025-02

Included Journals:SCI

Release Time:2025-05-24

Attachments

Manuscript.pdf