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Durability Performance Investigation for Engineering Fiber Cementitious Composites (ECC): Review.
Ziyi Zhang1, Yongcheng Ji2, Wenhao Ji2
1School of Aulin, Northeast Forestry University, Harbin 150040, China.
Polymers
|February 28, 2023
Summary
Engineered Cementitious Composite (ECC) shows great potential with its unique properties, but high costs limit its use. This review explores methods to improve ECC, focusing on fiber types, water-binder ratios, and mineral admixtures for better performance and durability.
Area of Science:
- Materials Science
- Civil Engineering
- Construction Materials
Background:
- Engineered Cementitious Composite (ECC) is recognized for exceptional tensile strain hardening and multiple cracking behaviors.
- High material costs, particularly for polyvinyl alcohol (PVA) fiber and quartz sand, hinder widespread market adoption of ECC.
- Extensive research is ongoing globally to enhance ECC properties and reduce production costs.
Purpose of the Study:
- To provide a comprehensive review of the development history and current research status of ECC materials.
- To categorize and analyze various methods employed by researchers to improve ECC.
- To evaluate the impact of these improvements on ECC's mechanical properties and durability, and discuss constitutive models for numerical simulations.
Main Methods:
- Classification of ECC improvement strategies into three main categories: fiber variation, water-binder ratio adjustment, and incorporation of mineral admixtures.
- Detailed analysis of the influence of these factors on mechanical properties (compressive and flexural strength) and durability.
- Review and evaluation of common uniaxial compression and tension constitutive models for ECC.
Main Results:
- Identified fiber type variation, water-binder ratio, and mineral admixtures as key factors influencing ECC performance.
- Explained the mechanisms through which these factors affect the mechanical properties and durability of ECC.
- Assessed the suitability of various constitutive models for numerical simulation of ECC behavior.
Conclusions:
- Significant advancements have been made in improving ECC through material modifications and optimized mix designs.
- Further research is recommended on optimizing water-binder proportions and exploring the application of composite fibers for enhanced ECC performance.
- The review aims to guide future research and practical applications of improved ECC materials.
Keywords:
constitutive modelcontent of fiberdurabilityengineering cement-based compositeswater-binder ratioMore Related Videos
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