| 机制砂中石粉含量对混凝土性能的影响 |
| |
| 引用本文： | 杜凤英,李海波,张秀芝.机制砂中石粉含量对混凝土性能的影响[J].商品混凝土,2012(6):47-49. |
| |
| 作者姓名： | 杜凤英 李海波 张秀芝 |
| |
| 作者单位： | 中交一航局第一工程有限公司;济南四建混凝土有限公司;济南大学材料科学与工程学院 |
| |
| 摘 要： | 本文测试了机制砂中石粉含量(质量分数)对混凝土工作性能、强度以及抗冻性能的影响,并通过孔隙率与孔径分布分析石粉含量对机制砂混凝土微观结构的影响。结果表明:随着机制砂中石粉含量的增加,混凝土的工作性能下降,强度及抗冻性能随着石粉含量的增加先提高后下降,最佳掺量在10%左右,当石粉含量高于10%时,机制砂高强混凝土工作性及耐久性能劣化。
|
| 关 键 词： | 机制砂 石灰石粉 抗冻性能 收缩性能 |
Effects of stone dust on resistance to shrinkage and freezing of manufactured sand concrete |
| |
| Du Fengying,Li Haibo,Zhang xiuzhi.Effects of stone dust on resistance to shrinkage and freezing of manufactured sand concrete[J].Ready-mixed Concrete,2012(6):47-49. |
| |
| Authors: | Du Fengying Li Haibo Zhang xiuzhi |
| |
| Affiliation: | 1.The First Engineering Company of the First NEB of CCCC,Tianjin 300456, 2.Jinan Sijian Group Construction CO.,Ltd,Jinan,Shandong Province,250031,3.School of Materials Science and Engineering,University of Jinan,Jinan,Shandong Province,250022) |
| |
| Abstract: | The effects of different stone dust(SD) content in manufactured sand(MS) on the workability,compressive strength and resistance to freezing of concrete are investigated in this paper.The results show that with the increase of SD content in MS,the fluidity of concrete decreases.When the SD content is higher than 10%,the MS concrete shows an obvious degradation of compressive strength and resistance to freezing. |
| |
| Keywords: | manufactured-sand concrete stone-dust compressive strength resistance to freezing |
| 本文献已被 CNKI 等数据库收录！ |
|
