不同来源重金属元素在混凝土中的浸出性研究

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发布时间：2020-01-06 00:00:00

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不同来源重金属元素在混凝土中的浸出性研究

Study on Leachability of Heavy Metal Elements in Different Sources in Concrete

2017年第7期

重金属元素；混凝土；胶凝材料；骨料

Heavy metals elements; Concrete; Cementitious materials; Aggregates

2017年第7期

1000-4637（2017）06-91-04

韩彩霞1，崔素萍2，刘辉2，杜鑫2

1.新疆建设职业技术学院材料工程学院，乌鲁木齐，830026； 2.北京工业大学材料科学与工程学院，100124

韩彩霞1，崔素萍2，刘辉2，杜鑫2

韩彩霞,崔素萍,刘辉,等.不同来源重金属元素在混凝土中的浸出性研究[J].混凝土与水泥制品,2017(6):91-94.

HAN C X, CUI S P, LIU H,et al.Study on Leachability of Heavy Metal Elements in Different Sources in Concrete[J].China Concrete and Cement Products,2017(6):91-94.

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摘要：研究了不同来源重金属元素在混凝土中的浸出性，从胶凝材料、骨料和外加重金属元素三方面阐述重金属元素的浸出性。结果表明，纯水泥、水泥与粉煤灰质量比为7∶3、水泥与矿粉量比为7∶3三种胶凝体系中的重金属浸出率低，其中，纯水泥浆体中检测不到重金属离子的浸出；所选四个地区的天然粗骨料和六个地区的天然细骨料中的重金属含量和重金属浸出性各有差异，其中Pb和Zn相对含量及浸出率较高；而骨料中重金属的浸出率极低，Zn的相对浸出率较高；水泥净浆中外掺六种可溶性重金属盐或重金属氧化物表现出不同的重金属浸出性，外掺重金属氧化物，净浆的重金属浸出率较低，而外掺可溶性重金属盐，水泥净浆的重金属浸出率相对较高。 Abstract: The leachability of heavy metal elements in different sources of concrete including cementitious materials, aggregates and adding soluble heavy metal salts or heavy metal oxides was investigated. The results showed that the pastes of pure cement, 70% cement + 30% fly ash and 70% cement + 30% slag have low heavy metal elements leachability and pure cement pastes have no heavy metals extraction content; coarse aggregates obtained from four districts and fine aggregate obtained from six districts have different heavy metal elements content and different leachability; heavy metals leachability of cement pastes was increased when adding soluble heavy metal salts into cement pastes compared with adding heavy metal oxides.

英文名 : Study on Leachability of Heavy Metal Elements in Different Sources in Concrete

刊期 : 2017年第7期

关键词 : 重金属元素；混凝土；胶凝材料；骨料

Key words : Heavy metals elements; Concrete; Cementitious materials; Aggregates

刊期 : 2017年第7期

DOI :

文章编号 : 1000-4637（2017）06-91-04

基金项目 :

作者 : 韩彩霞1，崔素萍2，刘辉2，杜鑫2

单位 : 1.新疆建设职业技术学院材料工程学院，乌鲁木齐，830026； 2.北京工业大学材料科学与工程学院，100124

韩彩霞1，崔素萍2，刘辉2，杜鑫2

韩彩霞,崔素萍,刘辉,等.不同来源重金属元素在混凝土中的浸出性研究[J].混凝土与水泥制品,2017(6):91-94.

HAN C X, CUI S P, LIU H,et al.Study on Leachability of Heavy Metal Elements in Different Sources in Concrete[J].China Concrete and Cement Products,2017(6):91-94.

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参考文献

引用本文

Abstract: The leachability of heavy metal elements in different sources of concrete including cementitious materials, aggregates and adding soluble heavy metal salts or heavy metal oxides was investigated. The results showed that the pastes of pure cement, 70% cement + 30% fly ash and 70% cement + 30% slag have low heavy metal elements leachability and pure cement pastes have no heavy metals extraction content; coarse aggregates obtained from four districts and fine aggregate obtained from six districts have different heavy metal elements content and different leachability; heavy metals leachability of cement pastes was increased when adding soluble heavy metal salts into cement pastes compared with adding heavy metal oxides.

关键词:

重金属元素；混凝土；胶凝材料；骨料

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[9] 兰明章.重金属在水泥熟料煅烧和水泥水化过程中的行为研究[D].北京:中国建筑材料科学研究总院,2008.

[10] 王莹莹.厦门地区废弃混凝土重金属含量研究[J].福建建材,2016(8):5-7.

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不同来源重金属元素在混凝土中的浸出性研究

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