| 离心成型钢纤维混凝土抗冻性试验研究 |
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| 引用本文： | 温世臣,李凤兰,杨晓明,赵顺波.离心成型钢纤维混凝土抗冻性试验研究[J].建筑技术开发,2005(7). |
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| 作者姓名： | 温世臣 李凤兰 杨晓明 赵顺波 |
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| 作者单位： | 华北水利水电学院土木工程系，华北水利水电学院土木工程系，华北水利水电学院土木工程系，华北水利水电学院土木工程系 郑州 450011，郑州 450011，郑州 450011，郑州 450011 |
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| 基金项目： | 河南省自然科学基金，河南省电力公司科技计划项目 |
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| 摘 要： | 通过对离心成型钢纤维混凝土试件的抗冻试验,研究了基体混凝土强度和钢纤维体积率对离心成型混凝土抗冻性能的影响规律,探讨了试件尺寸对抗冻试验结果的影响。研究结果表明:单纯提高基体混凝土强度不能明显改善离心成型混凝土的抗冻能力,掺入钢纤维则显著提高了离心成型混凝土的抗冻能力,并且钢纤维掺量的增大使离心成型混凝土的抗冻能力增强。结合离心成型钢纤维混凝土构件的纤维分布规律,对上述试验结果进行了分析讨论。
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| 关 键 词： | 离心成型钢纤维混凝土 抗冻性 钢纤维体积率 基体混凝土强度 试件尺寸 |
STUDY ON FREEAE-THAW RESISTANCE OF SPUN-CAST STEEL FIBER REINFORCED CONCRETE |
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| Wen Shi-chen Li Feng-lan Yang Xiao-ming Zhao Shun-bo.STUDY ON FREEAE-THAW RESISTANCE OF SPUN-CAST STEEL FIBER REINFORCED CONCRETE[J].Building Technique Development,2005(7). |
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| Authors: | Wen Shi-chen Li Feng-lan Yang Xiao-ming Zhao Shun-bo |
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| Affiliation: | Wen Shi-chen Li Feng-lan Yang Xiao-ming Zhao Shun-bo |
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| Abstract: | Based on the freeze-thaw test of spun-cast steel fiber reinforced concrete specimen,the effects of the matrix- concrete strength and the steel fiber volume fraction on the freeze-thaw resistance of spun-cast steel fiber reinforced concrete are studied,and the effects of specimens dimension on the test results are discussed.It has been founded that the freeze-thaw resistance can't be enhanced obviously by simply increasing the matrix- concrete strength,but it can be improved remarkably by adding steel fibers,and it will be increased with the increasing of steel fiber volume fraction.Combined with the distribution rules of steel fiber in spun-cast concrete, the test results are analyzed. |
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| Keywords: | Spun-cast steel fiber reinforced concrete Freeze-thaw resistance Steel fiber volnme fraction Matrix-concrete strength Dimension of specimen |
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