| 沥青混合料半圆弯拉强度与间接拉伸强度对比分析 |
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| 引用本文： | 刘宇,张肖宁.沥青混合料半圆弯拉强度与间接拉伸强度对比分析[J].公路交通技术,2011(3):34-37. |
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| 作者姓名： | 刘宇 张肖宁 |
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| 作者单位： | 1. 长安大学，西安710064;广东华路交通科技有限公司，广州510420
2. 华南理工大学道路工程研究所,广州,510640 |
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| 基金项目： | 广东省交通运输厅科技项目(201002004) |
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| 摘 要： | 强度是与沥青混合料路用性能密切相关的一项指标，采用半圆弯拉试验评价沥青混合料弯拉强度是一种新型试验方法。基于三维有限元模型建立半圆试件底部中心点应力公式，在考虑试件切割损耗情况下得到的应力系数更符合实际。采用半圆弯曲和间接拉伸2种试验方法对AC-9.5和AC-16两种沥青混合料在4个温度下进行强度试验，试验结果表明，半...
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| 关 键 词： | 半圆弯拉试验 间接拉伸试验 强度 |
Comparative Analysis for Semicircle Bending Strength and Indirect Tensile Strength of Asphalt Mixtures |
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| LIU Yu,ZHANG Xiaoning.Comparative Analysis for Semicircle Bending Strength and Indirect Tensile Strength of Asphalt Mixtures[J].Technology of Highway and Transport,2011(3):34-37. |
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| Authors: | LIU Yu ZHANG Xiaoning |
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| Institution: | LIU Yu1,2,ZHANG Xiaoning3 |
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| Abstract: | The strength is an index closely related to road properties of asphalt mixtures,and the evaluation by semicircle bending test for tensile strength of asphalt mixtures is a new test method.This paper establishes the stress formulae of central point on the bottom of semicircle test specimen based on three-dimensional finite element model,and the stress factors obtained in consideration of cutting loss of test specimen are more practicable.The paper adopts semicircle bending and indirect tensile test methods t... |
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| Keywords: | semicircle bending test indirect tensile test strength |
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