Fly Ash Impact from Thermal Power Stations on the Environment

Kozhukhova, N. I.; Lebedev, M S; Vasilenko, Marina; Гончарова, Е. Н.

doi:10.1088/1742-6596/1066/1/012010

Cited by 8 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, owing to the depletion in its quantities over the past years, researchers are required to search for other industrial materials that possess similar chemical compositions to fly ash to serve as a suitable replacement. Another reason to find other alternatives to fly ash is that the level of toxicity varies between one region and another, where Russian fly ash showed less toxicity level with a pH near neutral compared to fly ash exported from other countries [88]. In addition, the complete or partial replacement of natural fine aggregates with recycled counterparts in producing geopolymer mortars has not received adequate attention [89].…”

Section: Word Cloudmentioning

confidence: 99%

Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

et al. 2023

View full text Add to dashboard Cite

This study conducts a scientometric review on the use of geopolymer mortar and composites in different construction applications. It aims to analyze the findings of past research and reveal the research constituents, development trends, and knowledge gaps. The Scopus database was employed to retrieve the relevant publications, while Bibliometrix was used to conduct the statistical analyses. Results revealed a steady and gradual increase in the number of publications after 2013, as the annual growth rate increased from 23.9% to 45.2% between the timeframes 2003–2013 and 2014–2022, respectively. The analysis highlighted that many authors collaborated on different construction applications of geopolymers regardless of geographic location. Meanwhile, Construction and Building Materials, China, and Universiti Malaysia Perlis were found to be the predominant journal, country, and institution, respectively. The scientometric analysis showed that the most frequently investigated applications for geopolymer mortars and composites were fire resistance, corrosion protection, and repair. Research gaps highlighted that other applications are not as well investigated despite the promising performance of the geopolymer composites, including 3D printing, heavy metals absorption, environmental protection, and underwater applications. Future research is required to assess the use of other alumina and silica-rich binders in geopolymers while also exploring their lifecycle assessment and economic impact.

show abstract

Section: Word Cloudmentioning

confidence: 99%

Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Geopolymer concrete (GPC) has the advantages of environmental protection and energy savings, as well as mechanical properties close to or better than OPC concrete (OPCC) [ 16 , 17 , 18 , 19 , 20 ]. Besides, GPC will show higher temperature resistance on some structures, compared to OPCC [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Nano-SiO2 Reinforced Geopolymer Concrete under the Coupling Effect of a Wet–Thermal and Chloride Salt Environment

Jin

Zhang

et al. 2022

Polymers

View full text Add to dashboard Cite

In this study, the mechanical behaviors of nano-SiO2 reinforced geopolymer concrete (NS-GPC) under the coupling effect of a wet–thermal and chloride salt environment were investigated through a series of basic experiments, and a simulation on the coupling effect of a wet–thermal and chloride salt environment and SEM test were also included. During the experiments for the coupling effect of the wet–thermal and chloride salt environment, an environment simulation test chamber was utilized to simulate the wet–thermal and chloride salt environment, in which the parameters of relative humidity, temperature, mass fraction of NaCl solution and action time were set as 100%, 45 °C, 5% and 60 d, respectively. The content of nano-SiO2 (NS) particles added in geopolymer concrete (GPC) were 0, 0.5%, 1.0%, 1.5% and 2.0%. The result indicated that the mechanical properties of NS reinforced GPC decreased under the coupling effect of the wet–thermal and chloride salt environment compared to the control group in the natural environment. When the NS content was 1.5%, the cube and splitting tensile strength, elastic modulus and impact toughness of GPC under the coupling environment of wet–thermal and chloride salt were decreased by 9.7%, 9.8%, 19.2% and 44.4%, respectively, relative to that of the GPC under the natural environment. The addition of NS improved the mechanical properties of GPC under the coupling effect of the wet–thermal and chloride salt environment. Compared to the control group without NS, the maximum increment in cube compressive strength, splitting tensile strength and elastic modulus of NS–GPC under the coupling effect of the wet–thermal and chloride salt environment due to the incorporation of NS reached 25.8%, 9.6% and 17.2%, respectively. Specifically, 1.5% content of NS increased the impact toughness, impact numbers of initial crack and the ultimate failure of GPC by 122.3%, 109% and 109.5%, respectively.

show abstract

“…At present, scientists of the Belgorod State Technological University named after V.G. Shukhov have developed the compositions and successfully tested the technology of obtaining geopolymers based on perlite and low-calcium fly-ash (FA) of thermal power plants (TPP) [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Comparative characteristics of binders resistance for building composites to mold fungi

et al. 2018

View full text Add to dashboard Cite

show abstract

Fly Ash Impact from Thermal Power Stations on the Environment

Cited by 8 publications

References 0 publications

Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

Scientometric Analysis of Global Research on the Utilization of Geopolymer Composites in Construction Applications

Mechanical Properties of Nano-SiO2 Reinforced Geopolymer Concrete under the Coupling Effect of a Wet–Thermal and Chloride Salt Environment

Comparative characteristics of binders resistance for building composites to mold fungi

Contact Info

Product

Resources

About