Abstract
This research study was conducted to investigate the performance of high strength concrete (HSC) made with copper slag as a fine aggregate at constant workability and to study the effect of superplasticizer addition on the properties of HSC made with copper slag. Two series of concrete mixtures were prepared with different proportions of copper slag. The first series consisted of six concrete mixtures prepared with different proportions of copper slag at constant workability. The water content was adjusted in each mixture in order to achieve the same workability as that for the control mixture. Twelve concrete mixtures were prepared in the second series. Only the first mixture was prepared using superplasticizer whereas the other eleven mixtures were prepared without using superplasticizer and with different proportions of copper slag used as sand replacement. The results indicated that the water demand reduced by almost 22% at 100% copper slag replacement compared to the control mixture. The strength and durability of HSC were generally improved with the increase of copper slag content in the concrete mixture. However, the strength and durability characteristics of HSC were adversely affected by the absence of the superplasticizer from the concrete paste despite the improvement in the concrete strength with the increase of copper content. All concrete mixtures did not meet the strength and durability design requirements due to the segregation and dryness of the concrete paste. Therefore it can be concluded that the use of copper slag as sand substitution improves HSC strength and durability characteristics at same workability while superplasticizer is very important ingredient in HSC made with copper slag in order to provide good workability and better consistency for the concrete matrix.
| Original language | English |
|---|---|
| Pages (from-to) | 2132-2140 |
| Number of pages | 9 |
| Journal | Construction and Building Materials |
| Volume | 23 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2009 |
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Keywords
- Copper slag
- Durability
- High strength concrete
- Industrial by-products
- Strength
- Waste material
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Materials Science(all)
Cite this
Performance of high strength concrete made with copper slag as a fine aggregate. / Al-Jabri, Khalifa S.; Hisada, Makoto; Al-Saidy, Abdullah H.; Al-Oraimi, S. K.
In: Construction and Building Materials, Vol. 23, No. 6, 06.2009, p. 2132-2140.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Performance of high strength concrete made with copper slag as a fine aggregate
AU - Al-Jabri, Khalifa S.
AU - Hisada, Makoto
AU - Al-Saidy, Abdullah H.
AU - Al-Oraimi, S. K.
PY - 2009/6
Y1 - 2009/6
N2 - This research study was conducted to investigate the performance of high strength concrete (HSC) made with copper slag as a fine aggregate at constant workability and to study the effect of superplasticizer addition on the properties of HSC made with copper slag. Two series of concrete mixtures were prepared with different proportions of copper slag. The first series consisted of six concrete mixtures prepared with different proportions of copper slag at constant workability. The water content was adjusted in each mixture in order to achieve the same workability as that for the control mixture. Twelve concrete mixtures were prepared in the second series. Only the first mixture was prepared using superplasticizer whereas the other eleven mixtures were prepared without using superplasticizer and with different proportions of copper slag used as sand replacement. The results indicated that the water demand reduced by almost 22% at 100% copper slag replacement compared to the control mixture. The strength and durability of HSC were generally improved with the increase of copper slag content in the concrete mixture. However, the strength and durability characteristics of HSC were adversely affected by the absence of the superplasticizer from the concrete paste despite the improvement in the concrete strength with the increase of copper content. All concrete mixtures did not meet the strength and durability design requirements due to the segregation and dryness of the concrete paste. Therefore it can be concluded that the use of copper slag as sand substitution improves HSC strength and durability characteristics at same workability while superplasticizer is very important ingredient in HSC made with copper slag in order to provide good workability and better consistency for the concrete matrix.
AB - This research study was conducted to investigate the performance of high strength concrete (HSC) made with copper slag as a fine aggregate at constant workability and to study the effect of superplasticizer addition on the properties of HSC made with copper slag. Two series of concrete mixtures were prepared with different proportions of copper slag. The first series consisted of six concrete mixtures prepared with different proportions of copper slag at constant workability. The water content was adjusted in each mixture in order to achieve the same workability as that for the control mixture. Twelve concrete mixtures were prepared in the second series. Only the first mixture was prepared using superplasticizer whereas the other eleven mixtures were prepared without using superplasticizer and with different proportions of copper slag used as sand replacement. The results indicated that the water demand reduced by almost 22% at 100% copper slag replacement compared to the control mixture. The strength and durability of HSC were generally improved with the increase of copper slag content in the concrete mixture. However, the strength and durability characteristics of HSC were adversely affected by the absence of the superplasticizer from the concrete paste despite the improvement in the concrete strength with the increase of copper content. All concrete mixtures did not meet the strength and durability design requirements due to the segregation and dryness of the concrete paste. Therefore it can be concluded that the use of copper slag as sand substitution improves HSC strength and durability characteristics at same workability while superplasticizer is very important ingredient in HSC made with copper slag in order to provide good workability and better consistency for the concrete matrix.
KW - Copper slag
KW - Durability
KW - High strength concrete
KW - Industrial by-products
KW - Strength
KW - Waste material
UR - http://www.scopus.com/inward/record.url?scp=62849088207&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=62849088207&partnerID=8YFLogxK
U2 - 10.1016/j.conbuildmat.2008.12.013
DO - 10.1016/j.conbuildmat.2008.12.013
M3 - Article
VL - 23
SP - 2132
EP - 2140
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
IS - 6
ER -