Physico-chemical characteristics of blended cement pastes containing electric arc furnace slag with and without silica fume
Joint Authors
al-Jamal, Siham Muhammad Abd al-Hamid
Abu al-Aynayn, S. A.
Amin, M. S.
al-Husayni, F. I.
Ramadan, M.
Source
Housing and Building National Research Center Journal
Issue
Vol. 11, Issue 3 (31 Dec. 2015), pp.321-327, 7 p.
Publisher
Housing and Building National Research Center
Publication Date
2015-12-31
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Topics
Abstract EN
Filled-pozzolanic cement pastes were made by different replacements of OPC by electric arc furnace slag (EAFS) with silica fume (SF) at water/cement ratio of 0.27.
The pastes were hydrated up to 90 days.
At each time interval, the physico-chemical characteristics of the hardened cement pastes were studied and related to the structure of the hardened pastes and the role of EAFS replacement as a filler in the hardened OPC-EAFS pastes.
It was found that the optimum replacement of OPC by EAFS for the improvement in hydraulic properties of filled cement pastes is 6%.
High replacement of OPC by EAFS (10% or 15%) causes a notable deterioration in the compressive strength at all ages of hydration.
The replacement of EAFS in Mix (90% OPC + 10% EAFS) by 4% SF causes a marked improvement in the mechanical properties for the hardened pastes of Mix (90% OPC + 6% EAFS + 4% SF).
The DSC thermograms for all pastes indicated the formation of nearly amorphous calcium silicate hydrates, calcium sulphoaluminate hydrates, calcium aluminate hydrates and portlandite.
The SEM micrographs showed that the partial substitution of OPC by EAFS and/or SF leads to more dense structures as compared to the neat OPC paste.
American Psychological Association (APA)
Amin, M. S.& al-Jamal, Siham Muhammad Abd al-Hamid& Abu al-Aynayn, S. A.& al-Husayni, F. I.& Ramadan, M.. 2015. Physico-chemical characteristics of blended cement pastes containing electric arc furnace slag with and without silica fume. Housing and Building National Research Center Journal،Vol. 11, no. 3, pp.321-327.
https://search.emarefa.net/detail/BIM-654737
Modern Language Association (MLA)
al-Jamal, Siham Muhammad Abd al-Hamid…[et al.]. Physico-chemical characteristics of blended cement pastes containing electric arc furnace slag with and without silica fume. Housing and Building National Research Center Journal Vol. 11, no. 3 (Dec. 2015), pp.321-327.
https://search.emarefa.net/detail/BIM-654737
American Medical Association (AMA)
Amin, M. S.& al-Jamal, Siham Muhammad Abd al-Hamid& Abu al-Aynayn, S. A.& al-Husayni, F. I.& Ramadan, M.. Physico-chemical characteristics of blended cement pastes containing electric arc furnace slag with and without silica fume. Housing and Building National Research Center Journal. 2015. Vol. 11, no. 3, pp.321-327.
https://search.emarefa.net/detail/BIM-654737
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 327
Record ID
BIM-654737