Green Concrete mix using solid waste and nanoparticles as alternatives – A review

Vishwakarma, Vinita; Ramachandran, D.

doi:10.1016/j.conbuildmat.2017.11.174

Cited by 160 publications

(64 citation statements)

References 43 publications

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“…Nanoparticles, owing to its ultrafine size and high surface area to volume ratio, can accelerate the cement hydration process and enable the formation of a denser microstructure, thereby improving the durability and mechanical properties of cementitious materials [10,11]. erefore, nanoparticles could be considered as an alternative choice to serve as accelerators for cementitious materials under low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO₂ Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Wang

Zhang

Gao

2018

Advances in Materials Science and Engineering

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Low temperature negatively affects the engineering performance of cementitious materials and hinders the construction productivity. Previous studies have already demonstrated that TiO 2 nanoparticles can accelerate cement hydration and enhance the strength development of cementitious materials at room temperature. However, the performance of cementitious materials containing TiO 2 nanoparticles at low temperatures is still unknown. In this study, specimens were prepared through the replacement of cement with 1 wt.%, 2 wt.%, 3 wt.%, 4 wt.%, and 5 wt.% TiO 2 nanoparticles and cured under temperatures of 0°C, 5°C, 10°C, and 20°C for specific ages. Physical and mechanical properties of the specimens were evaluated through the setting time test, compressive strength test, flexural strength test, hydration degree test, mercury intrusion porosimetry (MIP), X-ray diffraction (XRD) analysis, thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM) in order to examine the performance of cementitious materials with and without TiO 2 nanoparticles at various curing temperatures. It was found that low temperature delayed the process of cement hydration while TiO 2 nanoparticles had a positive effect on accelerating the cement hydration and reducing the setting time in terms of the results of the setting time test, hydration degree test, and strength test, and the specimen with the addition of 2 wt.% TiO 2 nanoparticles showed the superior performance. Refined pore structure in the MIP tests, more mass loss of CH in TGA, intense peak appearance associated with the hydration products in XRD analysis, and denser microstructure in SEM demonstrated that the specimen with 2 wt.% TiO 2 nanoparticles exhibited preferable physical and mechanical properties compared with that without TiO 2 nanoparticles under various curing temperatures.

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Section: Introductionmentioning

confidence: 99%

Effect of TiO₂ Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Wang

Zhang

Gao

2018

Advances in Materials Science and Engineering

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“…Sanitary ware is a very good building material, which can be used in public places, swimming pools, toilets, and rooms. However, since the photocatalyst needs the irradiation of ultraviolet light to function, the sterilization and purification effect is not good in the dark place [28]. e sterilization and air purification performance of this ceramic material can be improved by simultaneously adding silver, copper, or other antibacterial agents irradiating with ultraviolet light.…”

Section: Modification Of Ceramicsmentioning

confidence: 99%

Structural Performance Characteristics of Nanomaterials and Its Application in Traditional Architectural Cultural Design and Landscape Planning

Chao-hai

Wang

2021

Advances in Civil Engineering

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In recent years, with the rapid development of industrial technology, industrial materials have also begun to develop in more and more refined directions. Nanotechnology is one of the most developed core technologies in industrial technology, and these characteristics of nanomaterials make them shine in many fields, especially in the field of construction. Nowadays, conventional materials still have the problems of heavy weight and high thermal conductivity as thermal insulation materials for external walls. At the same time, it has outstanding performance that conventional materials do not have. Nanomaterials are widely used in various fields with rapid growth due to their many excellent properties and have produced huge economic benefits and social significance. This article describes the basic characteristics of nanomaterials, including surface effects, quantum size effects, small size effects, and macroscopic quantum tunneling effects. As nanomaterials and nanotechnology become more and more mature, the research on architectural coatings in our country has been slightly strengthened. Nanomaterials have a huge impact on future economic development and have become the most promising objects in the current material field. The experimental results prove that the foaming ability of nanomaterials is much better than that of ordinary materials, and the fault tolerance rate of the cement paste is also the highest. This can also positively show that the relationship between nanotechnology and construction engineering is getting closer and closer, and the combination of nanomaterials and construction materials shows people the broad prospects of construction materials for the development of ecological construction materials that improve the living environment and improve the quality of life.

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“…Furthermore, many studies of silica derivatives in concrete such as silica fume [ 14 ] and nano-silica [ 15 , 16 , 17 ] have been presented. They observed that the additive of nano-silica as a modifying agent increased the compressive strength of samples [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

et al. 2020

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Incorporating various industrial waste materials into concrete has recently gained attention for sustainable construction. This paper, for the first time, studies the effects of silica stone waste (SSW) powder on concrete. The cement of concrete was replaced with 5, 10, 15, and 20% of the SSW powder. The mechanical properties of concrete, such as compressive and tensile strength, were studied. Furthermore, the microstructure of concrete was studied by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy analysis (EDX), Fourier transformed infrared spectroscopy (FTIR), and X-Ray diffraction (XRD) tests. Compressive and tensile strength of samples with 5% SSW powder was improved up to 18.8% and 10.46%, respectively. As can be observed in the SEM images, a reduced number of pores and higher density in the matrix can explain the better compressive strength of samples with 5% SSW powder.

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Green Concrete mix using solid waste and nanoparticles as alternatives – A review

Cited by 160 publications

References 43 publications

Effect of TiO₂ Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Effect of TiO₂ Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Structural Performance Characteristics of Nanomaterials and Its Application in Traditional Architectural Cultural Design and Landscape Planning

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

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Green Concrete mix using solid waste and nanoparticles as alternatives – A review

Cited by 160 publications

References 43 publications

Effect of TiO2 Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Effect of TiO2 Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Structural Performance Characteristics of Nanomaterials and Its Application in Traditional Architectural Cultural Design and Landscape Planning

The Effect of Incorporating Silica Stone Waste on the Mechanical Properties of Sustainable Concretes

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Product

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Effect of TiO₂ Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures

Effect of TiO₂ Nanoparticles on Physical and Mechanical Properties of Cement at Low Temperatures