Article 2021 · 18 citations

Influence of singular and binary nanomaterials on the physical, mechanical and durability properties of mortars subjected to elevated temperatures and freeze-thaw cycles

Polat, Riza, Qarluq, Abdul Wakil, Karagol, Fatma

Abstract

In this paper, the singular and binary nanomaterials (halloysite nano-clay, nano-CaO and nano-SiO2) as a part replacement of cement were used to enhance the properties of mortars subjected to the elevated temperatures and freeze-thaw cycles. The mechanical and physical tests of the mortar were examined. Moreover, the microstructures and pore volume of samples after freeze-thaw cycles were examined by Scanning Electron Microscopy (SEM) and Barrett-Joyner-Halenda (BJH) technique. As a result, the highest compressive strength has been obtained with 3% halloysite nano-clay after durability effects. For the binary mixtures, the highest compressive strength is related to nano-CaO (2.5%) + halloysite nano-clay (2.5%) after freeze-thaw cycles. At elevated temperatures, the strength loss of mortar with nanomaterials are usually lower than control samples. The strength loss of the combination of nanoCaO and nano-SiO2 after durability effects is lower than the others. (C) 2021 Elsevier Ltd. All rights reserved.

Keywords

Halloysite nano-clay nano-CaO nano-SiO2 Freeze-thaw Elevated temperature CEMENT-BASED COMPOSITES NANO-PARTICLES AUTOGENOUS SHRINKAGE PORE STRUCTURE FLY-ASH CONCRETE PERFORMANCE NANO-SIO2 SILICA STRENGTH

WoS Categories

Construction & Building Technology Engineering, Civil Materials Science, Multidisciplinary

Sustainable Development Goals

Responsible Consumption and Production

Citation

Journal: CONSTRUCTION AND BUILDING MATERIALS
Year: 2021
Volume: 295
ISSN: 0950-0618
eISSN: 1879-0526
DOI: 10.1016/j.conbuildmat.2021.123608
WoS UID: WOS:000663782100006

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