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Sustainability
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Recent Advances in Concrete Technologies and Building Materials
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Recent Advances in Concrete Technologies and Building Materials

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Green Building".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 4705

Special Issue Editors

Dr. Salmabanu Luhar

E-Mail Website
Guest Editor
Frederick research center, Frederick University, P.O. Box 24729, Nicosia 1303, Cyprus
Interests: 3D printing; geopolymer composites; waste materials; concrete technology
Prof. Dr. Mohd Mustafa Al Bakri Abdullah

E-Mail Website1 Website2
Guest Editor
Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia
Interests: geopolymer; environmentally sustainable binders and composites; construction materials, ceramic; characterization; microstructure of green materials
Special Issues, Collections and Topics in MDPI journals
Dr. Ismail Luhar

E-Mail Website
Guest Editor
Shri Jagdishprasad Jhabarmal Tibrewala University, Rajasthan 333001, India
Interests: geopolymer; building materials; geology; waste materials; concrete; ground hydrology; 3D printing

Special Issue Information

Dear Colleagues,

Global development of infrastructures and constructions to cope with the mushrooming world population is driving to a gigantic exigency of concrete. Concrete has been revolutionized since Romans and its use is highest as a construction material on the earth. It requires essentially Ordinary Portland Cement (OPC) as a binder and hence, the demand for OPC is also increased. However, the production process for OPC not only takes place at elevated temperature consuming high energy in form of burning up of natural restricted mineral coal resources but also emits CO2 into the atmosphere. The cement and concrete industry is the world’s primary consumer of natural resources and a major contributor to greenhouse gas emissions. Currently, novel inorganic alumino-silicate materials, known as geopolymer composites, have emerged swiftly as an eco-benevolent alternative to contemporary ordinary Portland cement (OPC) building materials. These altogether form the core reasons to twist the arm of researchers, scientists and engineers to search for alternative construction materials that should be essentially sustainable, durable, user and eco-friendly and more significantly economically affordable.

This Special Issue focuses on  novel and impactful research on the development of sustainable cementitious composites, geopolymers; self-healing, Sustainable and environmental development, waste materials management and other advanced and emerging technology in concrete- 3D printing; artificial intelligence of geopolymer composites.

We look forward to receiving your contributions.

Dr. Salmabanu Luhar
Prof. Dr. Mohd Mustafa Al Bakri Abdullah
Dr. Ismail Luhar
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • geopolymer composites
  • durability of concrete
  • self-healing concrete
  • sustainable concrete
  • waste materials
  • microstructure
  • carbonation
  • nano-materials

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Published Papers (2 papers)

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Research

14 pages, 7147 KiB  
Article
Immobilization of Metals in Fired Clay Brick Incorporated with Aluminium-Rich Electroplating Sludge: Properties and Leaching Analysis
by Azini Amiza Hashim, Aeslina Abdul Kadir, Noor Amira Sarani, Mohd Ikhmal Haqeem Hassan, Arunraj Kersnansamy and Mohd Mustafa Al Bakri Abdullah
Sustainability 2022, 14(14), 8732; https://doi.org/10.3390/su14148732 - 17 Jul 2022
Cited by 6 | Viewed by 1732
Abstract
Electroplating sludge is the hazardous waste discarded from the plating and extractive metallurgical process which can only be disposed of at a secured landfill. In this study, the physical and mechanical properties, as well as metal leaching analysis, of fired clay brick incorporated [...] Read more.
Electroplating sludge is the hazardous waste discarded from the plating and extractive metallurgical process which can only be disposed of at a secured landfill. In this study, the physical and mechanical properties, as well as metal leaching analysis, of fired clay brick incorporated with electroplating sludge (0%, 2%, 4%, 6%, 8% and 10%) were determined. The physical and mechanical properties of bricks, such as firing shrinkage, dry density, initial rate of absorption, water absorption and compressive strength, were tested according to British standard 3921:1985 and British standard EN772:1. Furthermore, the metal leachability was determined by using the toxicity characteristic leaching procedure (TCLP) method 1311. The results show that the utilization of an electroplating-sludge brick up to 4% could enhance physical and mechanical properties, such as reducing the water absorption from 18.3% to 16.1% and increasing the compressive strength from 25.6 MPa to 41.6 MPa. The result also show that 4% of aluminium-rich electroplating sludge incorporated into the brick is the most suitable amount, as it leached less metal concentration and complied with USEPA standards. The metals which were most present in the electroplating sludge (aluminium and iron) drastically reduced from 193,000 ppm to 0.1372 ppm and from 4160 ppm to 0.144 ppm, respectively. Therefore, the electroplating sludge could be fully utilized in the fired clay brick as an alternative to producing low-cost building materials whilst decreasing the levels of disposal of metal sludge on the secured landfill. Full article
(This article belongs to the Special Issue Recent Advances in Concrete Technologies and Building Materials)
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17 pages, 3033 KiB  
Article
Ambient and Heat-Cured Geopolymer Composites: Mix Design Optimization and Life Cycle Assessment
by Mohamed Rabie, Mohammad R. Irshidat and Nasser Al-Nuaimi
Sustainability 2022, 14(9), 4942; https://doi.org/10.3390/su14094942 - 20 Apr 2022
Cited by 14 | Viewed by 2341
Abstract
The feasibility of producing sustainable cement-free composites and its environmental impact were investigated in this research. Experimental parametric evaluation was carried out in this regard to explore the optimum mix design of the composites. The effect of synthesis parameters and curing conditions on [...] Read more.
The feasibility of producing sustainable cement-free composites and its environmental impact were investigated in this research. Experimental parametric evaluation was carried out in this regard to explore the optimum mix design of the composites. The effect of synthesis parameters and curing conditions on the behavior of the produced geopolymer composites was investigated. The studied parameters included the molarity of the sodium hydroxide solution (12 M, 14 M, and 16 M), the sodium silicate to sodium hydroxide ratio (1, 1.5, 2, and 2.5), the fluid to binder ratio (0.6, 0.65, and 0.7), and the age. The curing conditions included ambient curing and heat treatment at 40 °C, 80 °C, and 120 °C for 24 h, 48 h, and 72 h. In addition, life cycle assessment was performed to compare the environmental impact of geopolymer and cementitious composites. The results reflected the possibility of producing geopolymer composites with significant positive environmental impacts over traditional cementitious composites. The synthesis parameters played a major role in the behavior of the produced geopolymers. Heat curing was necessary for the geopolymer mortar to achieve high early strength. However, strength development with age was more obvious for ambient-cured specimens than heat-cured specimens. The optimum fluid to binder ratio used in this research was 0.6. For this ratio, the compressive strength increased as the molarity of the sodium hydroxide solution increased for all sodium silicate to sodium hydroxide ratios. Finally, SEM images showed that the higher the molarity and as the amount of reacted FA particles increased, the better the microstructure of the geopolymer mortar was and the fewer pores the matrix had. Full article
(This article belongs to the Special Issue Recent Advances in Concrete Technologies and Building Materials)
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