Rheological and Mechanical Properties, Acid Resistance and Water Penetrability of Lightweight Self-Compacting Concrete Containing Nano-SiO2, Nano-TiO2 and Nano-Al2O3

This paper presents rheological and strength properties, acid resistance and water penetrability of lightweight self-compacting concrete containing nano-SiO2, nano-TiO2 and nano-Al2O3 as a partial substitute of cement

Yousef Askari Dolatabad; Reza Kamgar; Iman Gouhari Nezad

2019

Scholarcy highlights

  • This paper presents rheological and strength properties, acid resistance and water penetrability of lightweight self-compacting concrete containing nano-SiO2, nano-TiO2 and nano-Al2O3 as a partial substitute of cement
  • The rheological properties of LWSCCs were quantitatively evaluated by slump flow diameter, V-funnel flow time, J-ring, U-box and L-box height ratio
  • The mechanical properties of LWSCCs were evaluated by compressive and splitting tensile strength tests at 3, 7 and 28 days of curing, while the water penetrability of LWSCC samples was evaluated by the water permeability test
  • The specimens were exposed to 5% sulfuric acid solution up to the age of 70 days, and the corrosion was identified in terms of mass loss and retained compressive strength
  • Results indicated that the incorporation of nanoparticles can improve the compressive strength, acid resistance and water penetrability of LWSCCs
  • Results indicated that the incorporation of nanoparticles can improve the compressive strength, acid resistance and water penetrability of lightweight self-compacting concrete. In addition, the SEM tests revealed that the microstructure of LWSCCs with nanoparticles was more homogenous and compact than that of the control samples

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