钢渣粉对PE-ECC基本力学性能的影响

doi:10.16552/j.cnki.issn1001-1625.2024.1317

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (4): 1367-1376.DOI: 10.16552/j.cnki.issn1001-1625.2024.1317

钢渣粉对PE-ECC基本力学性能的影响

苏骏^1,2, 司渊¹, 蔡新华³, 王亚民⁴

1.湖北工业大学土木建筑与环境学院,武汉 430068;
2.湖北工业大学河湖健康智慧感知与生态修复教育部重点实验室,武汉 430068;
3.水资源工程与调度全国重点实验室(武汉大学),武汉 430072;
4.交通运输部天津水运工程科学研究所,天津 300456

收稿日期:2024-11-01 修订日期:2025-01-09 出版日期:2025-04-15 发布日期:2025-04-18
通信作者: 蔡新华,博士,副教授。E-mail:caixinhua@whu.edu.cn
作者简介:苏骏(1971—),男,博士,教授。主要从事纤维混凝土与高韧性水泥基复合材料的研究。E-mail:sujun930@163.com
基金资助:
国家自然科学基金面上项目(52178247);国家重点研发计划项目(2022YFB2603000);中央级公益性科研院所基本科研业务费专项资金项目(TKS20220105);交通运输行业重点科技项目(2022-MS5-139)

Influence of Steel Slag Powder on Basic Mechanical Properties of PE-ECC

SU Jun^1,2, SI Yuan¹, CAI Xinhua³, WANG Yamin⁴

1. School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China;
2. Key Laboratory of River and Lake Health Smart Perception and Ecological Restoration, Ministry of Education, Hubei University of Technology, Wuhan 430068, China;
3. State Key Laboratory of Water Resources Engineering and Management (Wuhan University), Wuhan 430072, China;
4. Tianjin Research Institute for Water Transport Engineering, Ministry of Transport, Tianjin 300456, China

Received:2024-11-01 Revised:2025-01-09 Published:2025-04-15 Online:2025-04-18

摘要/Abstract

摘要： 对不同钢渣粉掺量(0%、20%、40%、60%,质量分数)的聚乙烯纤维增强工程水泥基复合材料(PE-ECC)进行抗压强度和单轴拉伸试验,分析了钢渣粉对PE-ECC抗压强度的影响和拉伸应力-应变变化规律,并通过扫描电子显微镜(SEM)对PE纤维与掺钢渣粉工程水泥基复合材料(ECC)基体界面特性进行了微观形貌分析。结果表明,钢渣粉的掺入会降低PE-ECC的抗压强度、开裂应力及峰值应力,但提高了PE-ECC的拉伸韧性。此外,钢渣粉的掺入还改善了纤维与基体界面的结合状态。采用双折线本构模型能有效描述PE-ECC的拉伸应力-应变关系。本研究为ECC的多样化制备和工程应用提供了有价值的参考。

关键词: 工程水泥基复合材料, 聚乙烯纤维, 钢渣粉, 抗压性能, 拉伸性能, 本构模型

Abstract: Compressive strength and uniaxial tensile tests were conducted on polyethylene fiber reinforced engineered cementitious composites (PE-ECC) with varying steel slag powder content (0%, 20%, 40% and 60%, mass fraction) to examine the influence of steel slag powder on the compressive strength of PE-ECC and the change rule of tensile stress-strain. Microstructural analysis of the interface between PE fiber and steel slag powder-incorporated engineered cementitious composites (ECC) matrix was performed using scanning electron microscopy (SEM). The results show that the incorporation of steel slag powder reduces the compressive strength, cracking stress and peak stress under tension of PE-ECC, while improving the tensile toughness. Additionally, the presence of steel slag powder enhances the bonding state between fiber and matrix. The tensile stress-strain relationship of PE-ECC can be effectively described using bilinear constitutive model. The findings of this study provide valuable insights for diversified preparation and engineering applications of ECC.

Key words: engineered cementitious composite, polyethylene fiber, steel slag powder, compressive property, tensile property, constitutive model

中图分类号:

TU528

苏骏, 司渊, 蔡新华, 王亚民. 钢渣粉对PE-ECC基本力学性能的影响[J]. 硅酸盐通报, 2025, 44(4): 1367-1376.

SU Jun, SI Yuan, CAI Xinhua, WANG Yamin. Influence of Steel Slag Powder on Basic Mechanical Properties of PE-ECC[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(4): 1367-1376.

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钢渣粉对PE-ECC基本力学性能的影响

Influence of Steel Slag Powder on Basic Mechanical Properties of PE-ECC

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