| 离心成型钢纤维混凝土劈裂抗拉强度的尺寸效应 |
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| 引用本文： | 潘丽云,钱晓军,张吉红,李凤兰.离心成型钢纤维混凝土劈裂抗拉强度的尺寸效应[J].华北水利水电学院学报,2009,30(5):37-39. |
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| 作者姓名： | 潘丽云 钱晓军 张吉红 李凤兰 |
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| 作者单位： | 华北水利水电学院,河南,郑州,450011 |
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| 基金项目： | 河南省自然科学基金项目 |
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| 摘 要： | 基于不同高度试件的劈裂抗拉试验结果,研究了离心成型中速阶段离心时间和离心加速度、骨料级配、钢纤维长度、钢纤维体积率等因素对钢纤维混凝土劈裂抗拉强度尺寸效应的影响.通过对比分析,提出了以高度为150 mm的试件为标准的劈裂抗拉强度尺寸效应换算系数,可供实际应用参考.
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| 关 键 词： | 钢纤维混凝土 离心成型 劈裂抗拉强度 尺寸效应 |
Size Effect of Splitting-tensile Strength of Spun-cast Steel Fiber Reinforced Concrete |
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| PAN Li-yun,QIAN Xiao-jun,Zhang Ji-hong,LI Feng-lan.Size Effect of Splitting-tensile Strength of Spun-cast Steel Fiber Reinforced Concrete[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2009,30(5):37-39. |
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| Authors: | PAN Li-yun QIAN Xiao-jun Zhang Ji-hong LI Feng-lan |
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| Affiliation: | (North China Institute of Water Conservancy and Hydroelectric Power,Zhengzhou 450011,China) |
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| Abstract: | Based on the splitting-tensile test results of specimens with different depth,the size effect of splitting-tensile strength of spun-cast steel fiber reinforced concrete was studied considering the factors,such as the spun-cast time and acceleration during middle speed stage,the size grades of coarse aggregate,the length and volume fraction of steel fiber.By the comparison analysis,the size conversion coefficients of splitting-tensile strength are proposed taking the depth of 150 mm as the standard size.These can provide some references for application. |
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| Keywords: | steel fiber reinforced concrete spun-cast splitting-tensile strength size effect |
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