Nagilla Huerb de Azevedo
Universidade Federal de Santa Catarina
Ultimate tensile strengthSpecific surface areaComposite materialAbsorption of waterFlexural strengthMaterials scienceSuperplasticizerRheologyPortland cementSilicon carbideCompressive strengthCementSiliconMicrostructureDispersion (chemistry)Thermal treatment
3Publications
1H-index
14Citations
Publications 4
Newest
#1Nagilla Huerb de Azevedo (UFSC: Universidade Federal de Santa Catarina)H-Index: 1
#2José da Silva Andrade Neto (UFRGS: Universidade Federal do Rio Grande do Sul)H-Index: 6
Last. Philippe Jean Paul Gleize (UFSC: Universidade Federal de Santa Catarina)H-Index: 17
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Nanomaterials are potential candidates to improve the mechanical properties and durability of cementitious composites. SiC nanowhiskers (NWs) present exceptional mechanical properties and have already been successfully incorporated into different matrices. In this study, cementitious composites were produced with a superplasticizer (SP) and 0–1.0 wt % SiC NWs. Two different NWs were used: untreated (NT-NW) and thermally treated at 500 °C (500-NW). The rheological properties, cement hydration, me...
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#1Nagilla Huerb de Azevedo (UFSC: Universidade Federal de Santa Catarina)H-Index: 1
#2Paulo Ricardo de Matos (UFSC: Universidade Federal de Santa Catarina)H-Index: 10
Last. Andrea Murillo BetioliH-Index: 6
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Abstract The properties of silicon nanowhiskers suggest that they are ideal candidates for high-performance cementitious composites. In this study, we used SiC nanowhiskers (SiC NWs) without treatment and treated them at 500 °C. The SiC NWs were dispersed in water, and the corresponding effects of dispersion at 0.25, 0.50, and 1.00 wt% of cement were investigated. The rheological properties and fluidity of cement pastes with the addition of SiC NWs were influenced, and hydration of the cement wa...
1 CitationsSource
Last. Natalia Prieto-Jiménez (Industrial University of Santander)H-Index: 1
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1 CitationsSource
#1Nagilla Huerb de Azevedo (UFSC: Universidade Federal de Santa Catarina)H-Index: 1
#2Philippe Jean Paul Gleize (UFSC: Universidade Federal de Santa Catarina)H-Index: 17
Abstract This paper investigates the effect of silicon carbide nanowhiskers (SiC NWS) on cement pastes. SiC NWS were used at 0.25–1.50 wt%, significant increases in the compressive and flexural strength were observed (up to 25% and 75%, respectively). However, an optimum effect plateau seems to be reached at content of 0.25–1.00 wt% for compressive and flexural strength, respectively. The microstructural observations also show the ability of the SiC NWS to act as bridges across the matrix cracks...
18 CitationsSource