Guest Editors
Afonso Azevedo, Associate Professor, State University of Norte Fluminense Darcy Ribeiro, Brazil.
PhD in Civil Engineering from the State University of Norte Fluminense Darcy Ribeiro, where he developed research in the area of solid waste reuse for the development of alternative construction materials, such as activated mortars, ceramics and alkalis, and sustainability indicators. He holds a Masters in Civil Engineering from the State University of Norte Fluminense Darcy Ribeiro, Civil Engineer from the State University of Norte Fluminense Darcy Ribeiro. He did a postdoctoral internship in Engineering and Materials Science at PPGECM / UENF. He is currently an Associate Professor at the State University of Norte Fluminense Darcy Ribeiro, based at the Civil Engineering Laboratory (LECIV) of the Science and Technology Center (CCT) and a productivity fellow at FAPERJ. He works as a collaborator at the Universidade Federal Fluminense (UFF) in the Postgraduate Program in Biosystems Engineering (PGEB) and in the Postgraduate Program in Engineering and Materials Science (PPGECM) at UENF. He won the Top Peer Reviewers in Engineering 2019-Powered by Publons award.
Summary
The world civil construction generates large
environmental liabilities that affect the entire modern society. Vary researches
have been carried out aiming at the use of different types of solid waste in
the development of eco-friendly building materials, promoting the circular
economy process. This special edition aims to discuss and present innovative
manuscripts on the theme of sustainable materials, aiming at the reuse of waste
in materials such as mortar, ceramics, concrete, activated alkali, geopolymers
and others, which fill gaps in international scientific literature.
Keywords
Solid waste, construction materials, sustainability, reuse, circular economy
Published Papers
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Open Access
ARTICLE
Workability and Strength of Ceramsite Self-Compacting Concrete with Steel Slag Sand
Suiwei Pan, Anqi Ren, Yongli Peng, Min Wu, Wanguo Dong, Chunlin Liu, Depeng Chen
Journal of Renewable Materials, Vol.11, No.2, pp. 881-904, 2023, DOI:10.32604/jrm.2022.023000
（This article belongs to this Special Issue:
Circular Economy in the Development of Eco-Friendly Materials for Construction)
Abstract This study focuses on the workability and compressive strength of ceramsite self-compacting concrete with fine aggregate partially substituted by steel slag sand (CSLSCC) to prevent the pollution of steel slag in the environment. The SF, J-ring, visual stability index, and sieve analysis tests are primarily employed in this research to investigate the workability of freshly mixed self-compacting concrete containing steel slag at various steel slag sand replacement rates. The experiment results indicate that CSLSCC with the 20% volume percentage of steel slag (VPS) performs better workability, higher strength, and higher specific strength. The 7-day compressive strength of CSLSCC with the…
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Graphic Abstract
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Open Access
ARTICLE
Study on the Hydration and Physical Properties of Cement by M18 Polycarboxylate Superplasticizer Modified Graphene Oxide
Dalong Liao, Dongxu Li, Shun Zhou, Xiaotao Zhang, Ying Fang
Journal of Renewable Materials, Vol.11, No.2, pp. 625-641, 2023, DOI:10.32604/jrm.2022.022501
（This article belongs to this Special Issue:
Circular Economy in the Development of Eco-Friendly Materials for Construction)
Abstract Graphene oxide (GO) as a new nano-enhancer in cement-based materials has gained wide attention. However, GO is easy to aggregate in alkaline cement mortar with poor dispersibility. This hinders its application in practical infrastructure construction. In this work, GO-M18 polycarboxylate compound superplasticizer (GM) were obtained by compounding the M18 polycarboxylate superplasticizer with GO solution at different mass ratios. The dispersion of GM in alkaline solution was systematically studied. The phases and functional groups of GM were characterized by XRD and FTIR. The effects of GM on the cement mortar hydration and the formation of microstructure were investigated by measuring the…
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Graphic Abstract
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Open Access
ARTICLE
The Effect of Basalt Fiber on Concrete Performance under a Sulfate Attack Environment
Qiang Su, Jinming Xu
Journal of Renewable Materials, Vol.11, No.1, pp. 233-244, 2023, DOI:10.32604/jrm.2023.020573
（This article belongs to this Special Issue:
Circular Economy in the Development of Eco-Friendly Materials for Construction)
Abstract To enhance the sulfate attack resistance performance of concrete, Sulfate erosion test was carried out on basalt fiber concrete with different contents, selecting a concentration of 5% sulfate solution and using a dry−wet cycle mechanism attack of basalt fiber-reinforced concrete (BFRC). Every 15 dry−wet cycles, the mass, compressive strength, splitting tensile strength, and relative dynamic elastic modulus of BFRC were tested, and the SO
42− concentration was measured. This work demonstrates that the mass, relative dynamic elastic modulus, compressive and splitting tensile strength of BFRC reveal a trend of climb up and then decline with the process of the dry−wet cycle.…
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Open Access
ARTICLE
Research and Application Status and Development Trend of Alkali-Activated Binder Powder for Mine Backfill
Qian Zhou, Yueyue Zhang, Juanhong Liu, Aixiang Wu, Hongjiang Wang
Journal of Renewable Materials, Vol.10, No.12, pp. 3185-3199, 2022, DOI:10.32604/jrm.2022.020316
（This article belongs to this Special Issue:
Circular Economy in the Development of Eco-Friendly Materials for Construction)
Abstract To improve the economic and social benefits of mining and backfill, it is necessary to find the backfill materials
suitable for mineral mining, improve the various properties of the filling materials, and develop low cost, high
performance new filling materials. Portland cement is neither environmentally friendly nor economical. Currently, we have begun to study and apply some industrial waste, such as slag, fly ash, and other solid wastes, with
certain activities as the primary component of cementing material that will not only meet the technical requirements of filling, but also comprehensively utilize industrial waste and possess a benign, sustainable lifecycle…
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Open Access
ARTICLE
A Modeling Method for Predicting the Strength of Cemented Paste Backfill Based on a Combination of Aggregate Gradation Optimization and LSTM
Bo Zhang, Keqing Li, Siqi Zhang, Yafei Hu, Bin Han
Journal of Renewable Materials, Vol.10, No.12, pp. 3539-3558, 2022, DOI:10.32604/jrm.2022.021845
（This article belongs to this Special Issue:
Circular Economy in the Development of Eco-Friendly Materials for Construction)
Abstract Cemented paste backfill (CPB) is a sustainable mining technology that is widely used in mines and helps to improve
the mine environment. To investigate the relationship between aggregate grading and different affecting factors and
the uniaxial compressive strength (UCS) of the cemented paste backfill (CPB), Talbol gradation theory and neural
networks is used to evaluate aggregate gradation to determine the optimum aggregate ratio. The mixed aggregate ratio
with the least amount of cement (waste stone content river sand content = 7:3) is obtained by using Talbol grading
theory and pile compactness function and combined with experiments. In addition, the response…
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Graphic Abstract
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