| 利用废弃混凝土制备半干压成型砖的研究 |
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| 引用本文： | 徐丽娜,张丰庆,刘巧玲,田清波. 利用废弃混凝土制备半干压成型砖的研究[J]. 新型建筑材料, 2011, 0(7) |
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| 作者姓名： | 徐丽娜 张丰庆 刘巧玲 田清波 |
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| 作者单位： | 山东建筑大学材料科学与工程学院,山东,济南,250101 |
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| 基金项目： | 教育部重点科技计划项目，山东省教育厅科技计划项目 |
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| 摘 要： | 利用废弃混凝土制备了半干压成型砖,研究了养护制度和碱激活对半干压成型砖性能的影响.结果表明,随着养护温度的提高,半干压成型砖的强度逐渐增大;养护温度越高,半干压成型砖的最大强度也越高,达到最高强度所需的时间越短;当养护时间达到一临界值后,强度不再增长.碱激发可提高半干压成型砖的早期强度,但对半干压成型砖的后期强度没有影响.制备的半干压成型砖抗压强度和抗冻性等指标能够满足相关标准的要求,表明利用废弃混凝土制备半干压成型砖是可行的.
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| 关 键 词： | 废弃混凝土 粉煤灰 半干压成型砖 碱激发 |
Preparation of semi-dry pressure forming brick made from waste concrete |
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| XU Lina,ZHA NG Fengqing,LIU Qiaoling,TIAN Qingbo. Preparation of semi-dry pressure forming brick made from waste concrete[J]. New Building Materials, 2011, 0(7) |
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| Authors: | XU Lina ZHA NG Fengqing LIU Qiaoling TIAN Qingbo |
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| Affiliation: | XU Lina,ZHANG Fengqing,LIU Qiaoling,TIAN Qingbo (School of Materials Science and Engineering,Shandong Jianzhu University,Jinan 250101,Shandong,China) |
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| Abstract: | The semi-dry pressure forming brick was prepared with waste concrete as main raw material,and the influences of curing processes and alkali salt activation on properties were investigated.The results indicate that the strength of specimen increases gradually with the increments of the curing temperature,and the higher the temperature,the shorter the time needed to obtain the maximum strength,and the higher the maximum strength.The prolongation of curing time also increases the compressive strength,while the... |
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| Keywords: | waste concrete fly ash semi-dry pressure forming brick alkali salt activation |
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