多尺度超高韧性水泥基复合材料力学性能试验

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发布时间：2020-01-06 00:00:00

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多尺度超高韧性水泥基复合材料力学性能试验

Study on Mechanical Properties of Mutil-scale Ultra High Toughness Cementitious Composite Material

２０15年第12期

多尺度；超高韧性水泥基复合材料；力学性能

Mutil-scale; Ultra high toughness cementitious composite; Mechanical performance

２０15年第12期

1000-4637（2015）12-62-05

夏正兵1，蒋东升2

1.江苏城市职业学院（南通）建筑工程学院，226006；2.东南大学土木工程学院，南京210096

夏正兵1，蒋东升2

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摘要：基于水泥基复合材料多尺度的结构特征，设计了一种由聚乙烯醇（PVA）纤维以及碳酸钙晶须增强的新型多尺度超高韧性水泥基复合材料（Mutil Scale- Ultra High Toughness Cementitious Composite，简称MS-UHTCC），并研究了16组MS-UHTCC配比的抗压强度和单轴拉伸性能，探讨了晶须和PVA纤维对水泥基的增强机理。结果表明：晶须的掺入可提高UHTCC的抗压强度、延性及抗拉强度, MS-UHTCC在单拉作用下表现出明显的应变硬化行为和多缝开裂模式，利用碳酸钙晶须和国产PVA配制廉价MS-UHTCC具有可行性。 Abstract: Based on structure characterastic of multi-scale cementitious composites, a new kind of multi-scale ultra high toughness cementitious (MS-UHTCC) is designed by polyvinyl alcohol (PVA) fiber and calcium carbonate whisker. the compressive strength and mechanical properties uniaxial tension are studied through 16 series of MS-UHTCC proportions, and reinforced mechanism of PVA fiber and whisker on cementitious are discussed. The results indicate that the compressive strength, ductility and tensile strength of MS-UHTCC are enhanced by adding whisker, strain-hardening behavior and multiple cracking patterns of MS-UHTCC are achieved under uniaxial tension. The cheap MS-UHTCC is proposed by using CaCO3 whisker and domestic PVA fiber, which is feasible.

英文名 : Study on Mechanical Properties of Mutil-scale Ultra High Toughness Cementitious Composite Material

刊期 : ２０15年第12期

关键词 : 多尺度；超高韧性水泥基复合材料；力学性能

Key words : Mutil-scale; Ultra high toughness cementitious composite; Mechanical performance

刊期 : ２０15年第12期

DOI :

文章编号 : 1000-4637（2015）12-62-05

基金项目 :

作者 : 夏正兵1，蒋东升2

单位 : 1.江苏城市职业学院（南通）建筑工程学院，226006；2.东南大学土木工程学院，南京210096

夏正兵1，蒋东升2

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摘要

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结论

参考文献

引用本文

Abstract: Based on structure characterastic of multi-scale cementitious composites, a new kind of multi-scale ultra high toughness cementitious (MS-UHTCC) is designed by polyvinyl alcohol (PVA) fiber and calcium carbonate whisker. the compressive strength and mechanical properties uniaxial tension are studied through 16 series of MS-UHTCC proportions, and reinforced mechanism of PVA fiber and whisker on cementitious are discussed. The results indicate that the compressive strength, ductility and tensile strength of MS-UHTCC are enhanced by adding whisker, strain-hardening behavior and multiple cracking patterns of MS-UHTCC are achieved under uniaxial tension. The cheap MS-UHTCC is proposed by using CaCO3 whisker and domestic PVA fiber, which is feasible.

关键词:

多尺度；超高韧性水泥基复合材料；力学性能

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混凝土叠合板的板端受剪承载力分析

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PVA纤维增强水泥基材料尺寸效应及相关性能研究

头部文案

多尺度超高韧性水泥基复合材料力学性能试验

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