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Mechanical properties of recycled aggregate concrete modified by nano-particles
Highlights Nano-particles were used to improve recycled aggregate concrete (RAC) properties. Effect of replacement ratios of recycled aggregates on RAC properties was studied. Effect of dosages of nano-particles on RAC properties was studied. Effect of mixing method of nano-particles on RAC properties was studied.
Abstract In this study, different nano-particles were used to modify recycled aggregates concrete (RAC) containing recycled clay brick aggregates (RCBAs) to improve the RAC properties. Two stages of experimental works were performed. In the first stage, various nano-particle mixtures produced by different mixing methods, i.e. the use of surfactant and ultrasonication, were examined by optical microscope to evaluate the dispersion of the nano-particles in water liquid. The nano-particles modified cement mortar specimens were further evaluated by flexural tensile test to check how these mixing methods affect the properties of the nano-particle modified cement mortar. In the second experimental stage, the effects of four replacement ratios of recycled aggregates, three type of nano-particles, two mixing methods of RAC, additional surfactant and ultrasonication process used in the mix of nano-particle liquid, and the dosages of the nano-particles on the workability, compressive and split tensile properties of the nano-particle modified RAC were investigated.
Mechanical properties of recycled aggregate concrete modified by nano-particles
Highlights Nano-particles were used to improve recycled aggregate concrete (RAC) properties. Effect of replacement ratios of recycled aggregates on RAC properties was studied. Effect of dosages of nano-particles on RAC properties was studied. Effect of mixing method of nano-particles on RAC properties was studied.
Abstract In this study, different nano-particles were used to modify recycled aggregates concrete (RAC) containing recycled clay brick aggregates (RCBAs) to improve the RAC properties. Two stages of experimental works were performed. In the first stage, various nano-particle mixtures produced by different mixing methods, i.e. the use of surfactant and ultrasonication, were examined by optical microscope to evaluate the dispersion of the nano-particles in water liquid. The nano-particles modified cement mortar specimens were further evaluated by flexural tensile test to check how these mixing methods affect the properties of the nano-particle modified cement mortar. In the second experimental stage, the effects of four replacement ratios of recycled aggregates, three type of nano-particles, two mixing methods of RAC, additional surfactant and ultrasonication process used in the mix of nano-particle liquid, and the dosages of the nano-particles on the workability, compressive and split tensile properties of the nano-particle modified RAC were investigated.
Mechanical properties of recycled aggregate concrete modified by nano-particles
Gao, Chang (author) / Huang, Liang (author) / Yan, Libo (author) / Jin, Ruoyu (author) / Chen, Haoze (author)
2020-01-02
Article (Journal)
Electronic Resource
English
The Mechanical Properties of Recycled Aggregate Concrete
Trans Tech Publications | 2013
|Mechanical properties modeling of recycled aggregate concrete
Online Contents | 2010
|Mechanical properties modeling of recycled aggregate concrete
Elsevier | 2009
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