超高强复合灌浆料的断裂性能研究_《混凝土与水泥制品》杂志社

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超高强复合灌浆料的断裂性能研究

Fracture Performance of Ultra-high Strength Composite Grouting Materials

2022年第9期

超高强复合灌浆料；断裂参数；双K模型；尺寸效应模型

Ultra-high strength composite grouting material; Fracture parameter; Double-K fracture model; Size effect model

2022年第9期

10.19761/j.1000-4637.2022.09.077.05

浙江省基础公益研究计划项目（LHZ19E090002）；国家自然科学基金项目（51779224、51579221）。

郦湫翰1，王庆敏1，李政达 1，翁佳奇 2，王振宇1

1.浙江大学建筑工程学院，浙江杭州310058；2.杭州龙湖房地产开发有限公司，浙江杭州310020

郦湫翰1，王庆敏1，李政达 1，翁佳奇 2，王振宇1

郦湫翰,王庆敏,李政达,等.超高强复合灌浆料的断裂性能研究[J].混凝土与水泥制品,2022(9):77-81.

LI Q H,WANG Q M,LI Z D,et al.Fracture Performance of Ultra-high Strength Composite Grouting Materials[J].China Concrete and Cement Products,2022(9):77-81.

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摘要：为了研究超高强复合灌浆料的断裂性能，制作了不同尺寸的缺口三点弯曲梁试件，测试了断裂性能，并对双K断裂模型和尺寸效应模型进行了对比分析。结果表明：超高强复合灌浆料的起裂韧度与失稳韧度较为接近，裂缝稳定扩展的过程较短；根据双K模型计算得出不同尺寸试件的断裂韧度值基本一致，无明显的尺寸效应；根据尺寸效应模型计算得出的断裂韧度和双K模型计算得出的断裂韧度基本一致。 Abstract: In order to study the fracture properties of ultra-high strength composite grouting material, three-point bending beam specimens with different sizes were made, and their fracture properties were tested, and the double-K fracture model and size effect model were compared and analyzed. The results show that the fracture toughness and instability fracture toughness of the ultra-high strength composite grouting material are close, and the process of fracture stable expansion is short. The fracture toughness of different size specimens calculated by double-K model is basically the same, and there is no obvious size effect. The fracture toughness calculated by size effect model is basically the same as that calculated by double-K model.

英文名 : Fracture Performance of Ultra-high Strength Composite Grouting Materials

刊期 : 2022年第9期

关键词 : 超高强复合灌浆料；断裂参数；双K模型；尺寸效应模型

Key words : Ultra-high strength composite grouting material; Fracture parameter; Double-K fracture model; Size effect model

刊期 : 2022年第9期

DOI : 10.19761/j.1000-4637.2022.09.077.05

文章编号 :

基金项目 : 浙江省基础公益研究计划项目（LHZ19E090002）；国家自然科学基金项目（51779224、51579221）。

作者 : 郦湫翰1，王庆敏1，李政达 1，翁佳奇 2，王振宇1

单位 : 1.浙江大学建筑工程学院，浙江杭州310058；2.杭州龙湖房地产开发有限公司，浙江杭州310020

郦湫翰1，王庆敏1，李政达 1，翁佳奇 2，王振宇1

郦湫翰,王庆敏,李政达,等.超高强复合灌浆料的断裂性能研究[J].混凝土与水泥制品,2022(9):77-81.

LI Q H,WANG Q M,LI Z D,et al.Fracture Performance of Ultra-high Strength Composite Grouting Materials[J].China Concrete and Cement Products,2022(9):77-81.

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摘要

参数

结论

参考文献

引用本文

Abstract: In order to study the fracture properties of ultra-high strength composite grouting material, three-point bending beam specimens with different sizes were made, and their fracture properties were tested, and the double-K fracture model and size effect model were compared and analyzed. The results show that the fracture toughness and instability fracture toughness of the ultra-high strength composite grouting material are close, and the process of fracture stable expansion is short. The fracture toughness of different size specimens calculated by double-K model is basically the same, and there is no obvious size effect. The fracture toughness calculated by size effect model is basically the same as that calculated by double-K model.

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超高强复合灌浆料的断裂性能研究

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