Abstract
Spent catalyst is a by-product generated by oil refineries. There are two types of spent catalysts produced from oil refineries in Oman; Zeolite catalyst generated at Sohar Refinery and Equilibrium catalyst generated at Mina Al-Fahl Refinery. Spent catalyst can be used in concrete applications due to its pozzolanic nature. This study investigates the potential use of spent catalysts in concrete as partial substitute of sand at w/c ratios of 0.5 and 0.7. Concrete mixtures with different proportions of spent catalyst (up to 25% as sand repalcement) were prepared. Concrete mixtures were evaluated for compressive strength, setting time, water absorption, and corrosion resistance. The results showed that using 25% of the Sohar refinery's spent catalyst as sand replacement gave 73% increase in the cubes compressive strength at w/c ratio of 0.7. However, using spent catalyst from Mina Al-Fahl Refinery as sand replacement decreases the compressive strength gradually with the increase of spent catalyst percentage. The results also indicated that the elapsed time decreased as the quantity of spent catalyst from both refineries increases. Negligible increase in the total water absorption was observed in concrete when both spent catalysts were used. Concrete specimens made with spent catalyst from Sohar Refinery showed good corrosion resistance than the control mixture whereas spent catalyst from Mina Al- Fahl Refinery accelerated the corrosion process.
| Original language | English |
|---|---|
| Title of host publication | AEI 2013: Building Solutions for Architectural Engineering - Proceedings of the 2013 Architectural Engineering National Conference |
| Pages | 662-669 |
| Number of pages | 8 |
| DOIs | |
| Publication status | Published - 2013 |
| Event | 2013 Architectural Engineering National Conference: Building Solutions for Architectural Engineering, AEI 2013 - State College, PA, United States Duration: Apr 3 2013 → Apr 5 2013 |
Other
| Other | 2013 Architectural Engineering National Conference: Building Solutions for Architectural Engineering, AEI 2013 |
|---|---|
| Country | United States |
| City | State College, PA |
| Period | 4/3/13 → 4/5/13 |
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Keywords
- Cementitious Material
- Concrete
- Fine Aggregates
- Sand
- Spent Catalyst
- Zeolite
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Architecture
Cite this
Effect of spent catalyst as a fine aggregate on the properties of concrete. / Al-Jabri, Khalifa; Al-Kamyani, Zahran; Taha, Ramzi; Baawain, Mahad; Al-Shamsi, Khalid; Al-Saidy, Abdullah.
AEI 2013: Building Solutions for Architectural Engineering - Proceedings of the 2013 Architectural Engineering National Conference. 2013. p. 662-669.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Effect of spent catalyst as a fine aggregate on the properties of concrete
AU - Al-Jabri, Khalifa
AU - Al-Kamyani, Zahran
AU - Taha, Ramzi
AU - Baawain, Mahad
AU - Al-Shamsi, Khalid
AU - Al-Saidy, Abdullah
PY - 2013
Y1 - 2013
N2 - Spent catalyst is a by-product generated by oil refineries. There are two types of spent catalysts produced from oil refineries in Oman; Zeolite catalyst generated at Sohar Refinery and Equilibrium catalyst generated at Mina Al-Fahl Refinery. Spent catalyst can be used in concrete applications due to its pozzolanic nature. This study investigates the potential use of spent catalysts in concrete as partial substitute of sand at w/c ratios of 0.5 and 0.7. Concrete mixtures with different proportions of spent catalyst (up to 25% as sand repalcement) were prepared. Concrete mixtures were evaluated for compressive strength, setting time, water absorption, and corrosion resistance. The results showed that using 25% of the Sohar refinery's spent catalyst as sand replacement gave 73% increase in the cubes compressive strength at w/c ratio of 0.7. However, using spent catalyst from Mina Al-Fahl Refinery as sand replacement decreases the compressive strength gradually with the increase of spent catalyst percentage. The results also indicated that the elapsed time decreased as the quantity of spent catalyst from both refineries increases. Negligible increase in the total water absorption was observed in concrete when both spent catalysts were used. Concrete specimens made with spent catalyst from Sohar Refinery showed good corrosion resistance than the control mixture whereas spent catalyst from Mina Al- Fahl Refinery accelerated the corrosion process.
AB - Spent catalyst is a by-product generated by oil refineries. There are two types of spent catalysts produced from oil refineries in Oman; Zeolite catalyst generated at Sohar Refinery and Equilibrium catalyst generated at Mina Al-Fahl Refinery. Spent catalyst can be used in concrete applications due to its pozzolanic nature. This study investigates the potential use of spent catalysts in concrete as partial substitute of sand at w/c ratios of 0.5 and 0.7. Concrete mixtures with different proportions of spent catalyst (up to 25% as sand repalcement) were prepared. Concrete mixtures were evaluated for compressive strength, setting time, water absorption, and corrosion resistance. The results showed that using 25% of the Sohar refinery's spent catalyst as sand replacement gave 73% increase in the cubes compressive strength at w/c ratio of 0.7. However, using spent catalyst from Mina Al-Fahl Refinery as sand replacement decreases the compressive strength gradually with the increase of spent catalyst percentage. The results also indicated that the elapsed time decreased as the quantity of spent catalyst from both refineries increases. Negligible increase in the total water absorption was observed in concrete when both spent catalysts were used. Concrete specimens made with spent catalyst from Sohar Refinery showed good corrosion resistance than the control mixture whereas spent catalyst from Mina Al- Fahl Refinery accelerated the corrosion process.
KW - Cementitious Material
KW - Concrete
KW - Fine Aggregates
KW - Sand
KW - Spent Catalyst
KW - Zeolite
UR - http://www.scopus.com/inward/record.url?scp=84887376056&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887376056&partnerID=8YFLogxK
U2 - 10.1061/9780784412909.065
DO - 10.1061/9780784412909.065
M3 - Conference contribution
SN - 9780784412909
SP - 662
EP - 669
BT - AEI 2013: Building Solutions for Architectural Engineering - Proceedings of the 2013 Architectural Engineering National Conference
ER -