建筑垃圾再生骨料轻杂质含量快速检测方法研究  

Study on Rapid Determination of Light Impurities in Recycled Aggregate of Construction Waste

作　　者：熊炜 王彩萍 周铜 申鸣超 李瑞进 赵江贵 徐承瑀 Xiong Wei;Wang Caiping;Zhou Tong;Shen Mingchao;Li Ruijin;Zhao Jianggui;Xu Chengyu(Shangshan Branch,Shanghai Chengtou(Group)Environmental Co.,Ltd.,Shanghai,201302)

机构地区：[1]上海城投环境(集团)有限公司上善分公司,上海201302

出　　处：《当代化工研究》2024年第22期77-79,共3页Modern Chemical Research

摘　　要：建筑垃圾组分复杂,一定程度上限制了其资源化利用。为提高建筑垃圾资源化利用,提升资源化产物的质量,以上海青浦区建筑垃圾为例,研究建筑垃圾再生骨料的品质管控,剖析建筑垃圾再生骨料中有效组分和杂质间存在明显的密度差异,提出基于各组分密度差异,快速实现再生骨料含杂率检测的控容称重法。该方法包括容积校正、装料密实、控容称重、计算反馈4个步骤,快速、方便、高效地完成了再生骨料含杂率的检测,实验平均预测误差为1.03%,具有较好的检测准确性。该方法的提出为建筑垃圾再生骨料品类及性能的实时管控提供了科学方便的检测手段,对于引导企业调整工艺运行参数,控制骨料产品性能,保障混凝土强度要求,提高建筑垃圾资源化利用安全性具有实际意义。The composition of construction waste is complex,to some extent limiting its resource utilization.In order to improve the resource utilization of construction waste and enhance the quality of resourceized products,take the Shanghai Qingpu District Recycled Building Materials Factory as an example,this study focuses on the quality control of recycled aggregate from construction waste.It is found that there are obvious density differences between the effective components and impurities in recycled aggregate from construction waste.A method called the controlled-volume weighing method based on the density difference between the components is proposed to quickly detect the impurity content of recycled aggregate.The method includes four steps:volume correction,compact loading,controlled-volume weighing,and calculation feedback.It can quickly,conveniently,and efficiently complete the detection of impurity content in recycled aggregate.The average predicted error of the experiment is 1.03%,indicating good detection accuracy.The proposed method provides a scientific and convenient detection method for real-time quality control of recycled aggregate from construction waste,which has practical significance in guiding enterprises to adjust production parameters,controlling the performance of aggregate products,ensuring concrete strength requirements,and improving the safety of construction waste resource utilization.

关 键 词：建筑垃圾资源化利用 再生骨料 轻杂质 品质管控 快速检测 

分 类 号：TU528[建筑科学—建筑技术科学]