TY - JOUR
T1 - Enhancing cement hydration with nanosilica-coated polystyrene microspheres
AU - Shalit, Meytal
AU - Radune, Maya
AU - Knop, Yaniv
AU - Mastai, Yitzhak
N1 - Publisher Copyright:
© 2025 Emerald Publishing Limited: All rights reserved.
PY - 2024/5/11
Y1 - 2024/5/11
N2 - Nanoparticles (NPs) can be used as useful additives in construction materials. In this work, nanosilica (NS) was used in a way that prevented agglomeration of NPs as a pozzolanic material to improve Portland cement hydration and thus improve the properties of concrete. The effects of NS and polystyrene (PS) microspheres coated with NS (PS@NS) on cement paste properties were examined. Spherical PS particles were prepared by dispersion polymerisation of styrene in polar solvents and characterised by Fourier transform infrared spectroscopy and environmental scanning electron microscope. The PS@NS were synthesised using the Stöber method. Analysis showed that an amorphous NS layer was deposited uniformly on the PS particles and the core/shell structure reduced the aggregation of the NS effectively. It was also found that, compared with cement paste blended with NS, the PS@NS improved cement hydration due to the agglomeration affect.
AB - Nanoparticles (NPs) can be used as useful additives in construction materials. In this work, nanosilica (NS) was used in a way that prevented agglomeration of NPs as a pozzolanic material to improve Portland cement hydration and thus improve the properties of concrete. The effects of NS and polystyrene (PS) microspheres coated with NS (PS@NS) on cement paste properties were examined. Spherical PS particles were prepared by dispersion polymerisation of styrene in polar solvents and characterised by Fourier transform infrared spectroscopy and environmental scanning electron microscope. The PS@NS were synthesised using the Stöber method. Analysis showed that an amorphous NS layer was deposited uniformly on the PS particles and the core/shell structure reduced the aggregation of the NS effectively. It was also found that, compared with cement paste blended with NS, the PS@NS improved cement hydration due to the agglomeration affect.
KW - UN SDG 12: Responsible consumption and production
KW - UN SDG 13: Climate action
KW - UN SDG 7: Affordable and clean energy
KW - UN SDG 9: Industry, innovation and infrastructure
KW - calcium carbonate
KW - calcium silicate hydrate (CSH)
KW - compressive strength
KW - light weight
KW - pozzolans
UR - http://www.scopus.com/inward/record.url?scp=85193333475&partnerID=8YFLogxK
U2 - 10.1680/jadcr.23.00203
DO - 10.1680/jadcr.23.00203
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AN - SCOPUS:85193333475
SN - 0951-7197
VL - 37
SP - 15
EP - 23
JO - Advances in Cement Research
JF - Advances in Cement Research
IS - 1
ER -