活性掺合料再生混凝土碳化性能试验研究和理论分析
发布时间：2018-09-07 14:23
【摘要】：通过快速碳化试验,以活性掺合料矿粉、粉煤灰、引气剂、聚丙烯纤维以及再生粗骨料作为影响因素,对再生混凝土进行碳化性能试验研究。试验结果表明:影响再生混凝土碳化深度因素的主次顺序为:矿粉粉煤灰引气剂再生骨料聚丙烯纤维,并提炼出最优配合比。再生混凝土的碳化深度随着矿粉和粉煤灰掺量的增加而减小,随着引气剂和聚丙烯纤维掺量的增加而增大,随着再生粗骨料掺量的增大表现为先增大后降低,其中聚丙烯纤维掺加可有效提高碳化性能,效果显著。基于普通混凝土碳化计算模型的研究基础上,利用本次试验数据和国内学者数据进行回归分析,建立了建立了活性掺合料再生混凝土碳化深度预测模型。经过试验值和预测值的对比分析,可知预测模型具有较好地精度和可靠性,以供工程实践参考。
[Abstract]:Based on the rapid carbonation test, the carbonation performance of recycled concrete was studied by using the active admixture mineral powder, fly ash, air entraining agent, polypropylene fiber and recycled coarse aggregate as the influencing factors. The carbonation depth of recycled concrete decreases with the increase of mineral powder and fly ash content, increases with the increase of air-entraining agent and polypropylene fiber content, increases first and then decreases with the increase of recycled coarse aggregate content. Based on the research of carbonation calculation model of ordinary concrete, a prediction model of carbonation depth of recycled concrete with active admixture is established by using regression analysis of experimental data and data of domestic scholars. For engineering practice reference.
【作者单位】： 杨凌职业技术学院建筑工程分院建筑材料国家示范性重点实验室;
【基金】：自然科学研究基金“绿色再生混凝土力学性能试验研究分析”(A2015015)
【分类号】：TU528
本文编号：2228520
[Abstract]:Based on the rapid carbonation test, the carbonation performance of recycled concrete was studied by using the active admixture mineral powder, fly ash, air entraining agent, polypropylene fiber and recycled coarse aggregate as the influencing factors. The carbonation depth of recycled concrete decreases with the increase of mineral powder and fly ash content, increases with the increase of air-entraining agent and polypropylene fiber content, increases first and then decreases with the increase of recycled coarse aggregate content. Based on the research of carbonation calculation model of ordinary concrete, a prediction model of carbonation depth of recycled concrete with active admixture is established by using regression analysis of experimental data and data of domestic scholars. For engineering practice reference.
【作者单位】： 杨凌职业技术学院建筑工程分院建筑材料国家示范性重点实验室;
【基金】：自然科学研究基金“绿色再生混凝土力学性能试验研究分析”(A2015015)
【分类号】：TU528
【相似文献】
相关期刊论文 前5条
1 刘小海,袁耀玉,曾惠民;利用Φ3×11m圈流磨生产HPC超细活性掺合料试验[J];四川水泥;2000年03期
2 刘小海;生产HPC超细活性掺合料的工业试验[J];水泥技术;2001年04期
3 刘小海,袁耀玉,曾惠民;利用Φ3×11m圈流磨生产HPC超细活性掺合料试验[J];广东建材;2001年09期
4 何培;金凌志;;不同活性掺合料RPC力学性能试验研究[J];井冈山大学学报(自然科学版);2014年01期
5 ;[J];;年期
，本文编号：2228520
本文链接：https://www.wllwen.com/kejilunwen/huagong/2228520.html
