57 0

Characterization of alkali-activated slag paste containing dredged marine sediment

Title
Characterization of alkali-activated slag paste containing dredged marine sediment
Author
박주양
Keywords
Alkali activation; Dredged marine sediment; Ground-granulated blast-furnace slag (GGBFS); Solidification; stabilization (S; S)
Issue Date
2016-11
Publisher
TAYLOR & FRANCIS INC
Citation
DESALINATION AND WATER TREATMENT, v. 57, Issue 51, Page. 24688-24696
Abstract
We characterized alkali-activated slag paste containing dredged marine sediment according to Na2O concentration by mass of slag in the mixture. The compressive strengths of 3-d cured AAS-sediment paste specimens were similar to those of 28-d cured AAS-sediment paste specimens. The optimum Na2O concentration by mass of slag was 6-8%. Leaching testing of samples cured for 3d confirmed that heavy metals (Cr, Cu, Cd, and Pb) were below the detection limits for all these metals. X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy analyses revealed that the microstructure, fracture surface, and silicate band of calcium silicate hydrate as the main hydrate of the AAS-sediment paste were similar among the various samples. Despite this, Ca/Si molar ratios and quantitative analysis results differed among samples with different Na2O concentrations by mass of slag.
URI
https://www.tandfonline.com/doi/full/10.1080/19443994.2016.1157993http://repository.hanyang.ac.kr/handle/20.500.11754/101080
ISSN
1944-3994; 1944-3986
DOI
10.1080/19443994.2016.1157993
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE