| 模板衬里改善表层混凝土质量的机理研究 |
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| 引用本文： | 郭保林.模板衬里改善表层混凝土质量的机理研究[J].建筑材料学报,2011,14(4). |
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| 作者姓名： | 郭保林 |
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| 作者单位： | 山东高速青岛公路有限公司,山东青岛,266061 |
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| 基金项目： | 山东省交通厅科技项目(2008Y027-4) |
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| 摘 要： | 测试了不同侧压下蓄水型模板衬里的持水能力、水泥净浆及砂浆的养护用水量以及不同龄期混凝土的表面硬度,探讨了模板衬里改善表层混凝土质量的作用机理.结果表明:采用蓄水型模板衬里可实现混凝土的持续保湿养护;模板衬里对早龄期混凝土表面硬度的提高明显高于较长龄期混凝土表面硬度.模板衬里促使排水排气过程中胶凝材料细微颗粒向混凝土表层富集,使得表层混凝土中胶凝材料的早期水化程度高,同时又不间断地保湿养护表层混凝土,从而改善了表层混凝土的质量.
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| 关 键 词： | 模板衬里 表层混凝土 持水能力 保湿养护 |
Research on Mechanism of Surface Concrete Properties Improved by Controlled Permeable Formwork Liner(CPFL) |
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| GUO Bao-lin.Research on Mechanism of Surface Concrete Properties Improved by Controlled Permeable Formwork Liner(CPFL)[J].Journal of Building Materials,2011,14(4). |
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| Authors: | GUO Bao-lin |
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| Affiliation: | GUO Bao-lin(Shandong Hi-Speed Qingdao Expressway Co.,Ltd.,Qingdao 266061,China) |
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| Abstract: | Water-retaining ability of impounding type controlled permeable formwork liner(CPFL) under different lateral pressure,water requirement of cement paste and mortar in curing process,and concrete surface hardness at different age were measured,and the mechanism of surface concrete properties improved by CPFL was researched.Test results show that lasting moisture curing of concrete can be realized with impounding type CPFL.The improvement degree of concrete surface hardness at early age is more remarkable than... |
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| Keywords: | controlled permeable formwork liner surface concrete water-retaining ability moisture curing |
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