铜矿尾砂再生骨料混凝土性能试验研究
Experimental Study on Performance of Concrete with Copper Tailings and Recycled Aggregate
关键词:
铜矿尾砂;再生骨料;配合比设计
Key words:
Copper tailings; Recycled aggregate; Proportion design
刊期:
2019年第6期
DOI:
10.19761/j.1000-4637.2019.06.098.03
文章编号:
基金项目:
安徽省教育厅自然科学重点研究项目(KJ2017 A726);滁州职业技术学院重点课题(YJZ-2018-08)
作者:
林祖宏,毛富胜,谢海波
单位:
1.滁州职业技术学院土木工程系,239000;2.滁州海通交通设施有限公司,239000; 3.滁州市扬帆新型建材有限公司,239000
摘要
摘 要:根据地方废弃物的特点,把铜矿尾砂和再生骨料结合起来,代替砂石应用到普通混凝土中,通过调整外加剂掺量,保持水胶比不变,制作相应试件,测定其抗压强度、抗折强度及耐久性。结果表明,掺铜矿尾砂及再生骨料并未导致混凝土抗压强度及抗折强度明显降低,甚至有所提高。保持水胶比不变,调整铜矿尾砂和再生骨料用量,对混凝土耐久性影响不明显。
Abstract: According to the quantity characteristics of local waste, copper tailings and recycled aggregates are combined to replace sand and gravel in ordinary concrete. By adjusting the dosage of admixtures and keeping the water-binder ratio unchanged, the specimens are made to determine their compressive strength, flexural strength and durability. The results show that in terms of strength, the compressive strength and flexural strength of concrete are not significantly reduced or even improved by adding tailings and recycled aggregates. To keep the water-binder ratio unchanged and to adjust the amount of tailings and recycled aggregates, the durability of concrete is not significantly affected.
结论
(1)掺加铜矿尾砂及再生骨料未导致混凝土抗压强度及抗折强度明显降低,甚至有所提高。
(2)保持水胶比不变,调整铜矿尾砂和再生骨料用量,对混凝土耐久性的影响不很明显。这一试验结果给铜矿尾砂和再生骨料两者组合应用到混凝土生产实际提供了依据,对最大限度地废物利用、保护环境、节省资源大有裨益。
参考文献
引用本文
林祖宏,毛富胜,谢海波.铜矿尾砂再生骨料混凝土性能试验研究[J].混凝土与水泥制品,2019(6):98-100.
LIN Z H,MAO F S,XIE H B.Experimental Study on Performance of Concrete with Copper Tailings and Recycled Aggregate[J].China Concrete and Cement Products,2019(6):98-100.
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