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Limewater effects on properties of ZrO2 nanoparticle blended cementitious composite
The effect of limewater on compressive strength and setting time of ZrO2 nanoparticle-blended cementitious composites has been investigated. ZrO2 nanoparticles with partial replacement of cement by 0.5, 1.0, 1.5, and 2.0 wt% have been used as nano-fillers. 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 ZrO2 nanoparticles up to maximum replacement level of 2.0% produce a cementitious composite with improved compressive strength and setting time when the specimens were cured in saturated limewater. The optimum level of replacement for curing specimens in water is 1.0 wt%. ZrO2 nanoparticles can improve the filler effect and also the high pozzolanic action of fine particles increases substantially the quantity of strengthening gel. Although the limewater reduces the strength of the cementitious composite without nanoparticles, curing the specimens in saturated limewater results in the formation of larger amounts of strengthening gel around ZrO2 nanoparticle-blended cementitious composites and leads to more rapid setting time together with high strength.
Limewater effects on properties of ZrO2 nanoparticle blended cementitious composite
The effect of limewater on compressive strength and setting time of ZrO2 nanoparticle-blended cementitious composites has been investigated. ZrO2 nanoparticles with partial replacement of cement by 0.5, 1.0, 1.5, and 2.0 wt% have been used as nano-fillers. 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 ZrO2 nanoparticles up to maximum replacement level of 2.0% produce a cementitious composite with improved compressive strength and setting time when the specimens were cured in saturated limewater. The optimum level of replacement for curing specimens in water is 1.0 wt%. ZrO2 nanoparticles can improve the filler effect and also the high pozzolanic action of fine particles increases substantially the quantity of strengthening gel. Although the limewater reduces the strength of the cementitious composite without nanoparticles, curing the specimens in saturated limewater results in the formation of larger amounts of strengthening gel around ZrO2 nanoparticle-blended cementitious composites and leads to more rapid setting time together with high strength.
Limewater effects on properties of ZrO2 nanoparticle blended cementitious composite
Nazari, Ali (author) / Riahi, Shadi (author)
Journal of Composite Materials ; 45 ; 639-644
2011
6 Seiten, 5 Bilder, 3 Tabellen, 25 Quellen
Article (Journal)
English
Zement , Zirkondioxid , Druckfestigkeit , Fixierzeit , Nanopartikel , Kalkzement , Gel
Limewater effects on properties of ZrO~2 nanoparticle blended cementitious composite
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