Reducing and leaching inhibition effect of ground granulated blast-furnace slag and ground electric steel furnace slag on Cr (VI)

被引：0

作者：

Yu, Q. J. ^{[1
]}

Bai, R. Y. ^{[1
]}

Zeng, X. X. ^{[1
]}

Wei, J. X. ^{[1
]}

Zhao, S. Y. ^{[1
]}

Lin, J. Q. ^{[1
]}

机构：

[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China

来源：

PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CEMENT & CONCRETE AND CANMET/ACI INTERNATIONAL SYMPOSIUM ON CONCRETE TECHNOLOGY FOR SUSTAINABLE DEVELOPMENT, VOLS 1 AND 2 | 2006年

关键词：

granulated blast-furnace slag; electric steel furnace slag; hardened fly ash; Cr (VI); leaching inhibition;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This work mainly contains the following three aspects: (1) investigation into the reducing effect of ground granulated blast-furnace slag (GGBFS) and ground electric steel furnace slag (GESFS); (2) assessment of their ability to reduce Cr(VI) in Cr(VI)-containing aqueous solution and prevent the leaching of Cr NO from hardened fly ashes which contain high content leachable Cr(VI); and (3) relation between the amount of Cr(VI) leached from hardened fly ash and Cr(VI) concentration in the pore solution of the hardened fly ash. The results indicate that the two slags possess excellent reducibility in respect to Cr(VI). With addition of the slags whether the concentration of Cr(VI) in aqueous solution or the leaching of Cr(VI) from hardened fly ashes is reduced, and the effect is kept stable during the investigated term. GESFS has better inhibition effect on the leaching of Cr(VI) from hardened fly ash than GGBFS.

引用

页码：766 / 772

页数：7