US EPA

6871660 

Journal Article 

The effects of limewater on flexural strength and water permeability of Al2O3 nanoparticles binary blended concrete (Retracted article. See vol. 29, pg. 203, 2020) 

Nazari, Ali; Riahi, S; , 

2011 

Yes 

Journal of Composite Materials
ISSN: 0021-9983
EISSN: 1530-793X 

SAGE PUBLICATIONS LTD 

LONDON 

1165-1172 

10.1177/0021998310378907 

WOS:000290905500001 

has retraction 10505281 Ductile to Brittle Transition Temperature of Functionally Graded Steels (Retraction of Vol 21, Pg 191, 2012)

The effect of limewater on flexural strength and water permeability of Al2O3 nanoparticles binary blended concrete has been investigated. Al2O3 nanoparticles with partial replacement of cement by 0.5, 1.0, 1.5, and 2.0 wt% have been used as reinforcement. Curing of the specimens has been carried out in water and saturated limewater for 7, 28, and 90 days after casting. The results indicate that Al2O3 nanoparticles up to a maximum replacement level of 2.0% produces concrete with improved flexural strength and water permeability when the specimens cured in saturated limewater with respect to the specimens cured in water. Al2O3 nanoparticles can improve the filler effect and also the high pozzolanic action of fine nanoparticles increases substantially the quantity of strengthening gel. Although the limewater reduces the strength of concrete without nanoparticles, curing the specimens in saturated limewater results in more strengthening gel formation in Al2O3 nanoparticles blended concrete causes high strength.