Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.7
3.5
Journals
Processes
Special Issues
Reusing Processes of the Recyclable and Waste Materials in Infrastructure...
share announcement

Reusing Processes of the Recyclable and Waste Materials in Infrastructure Engineering

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (15 July 2023) | Viewed by 5550

Special Issue Editors

Dr. Katerina Varveri

E-Mail Website
Guest Editor
Engineering Structures, Delft University of Technology, 2628CN Delft, The Netherlands
Interests: chemomechanics; rheology; pavement materials; porous pavements; bitumen; moisture damage; oxidative ageing; freeze-thaw
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Guoqing Jing

E-Mail Website
Guest Editor
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
Interests: railway engineering training; track structure; railway ballast; composite sleeper; LCC
Special Issues, Collections and Topics in MDPI journals
Dr. Yunlong Guo

E-Mail Website
Guest Editor
Faculty of Civil Engineering and Geoscience, Delft University of Technology, 2628 CN Delft, The Netherlands
Interests: railway track structural health monitoring; ground penetrating radar for ballast layer inspection; track geometry inspection; track structure optimization; sleeper design; ballast layer design; railway circularity; waste tyre reuse; recycled ballast reuse; smart railway maintenance
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Infrastructure (e.g., road and rail) makes up a major part of the built environment and is the pillar of a developing economy. However, infrastructure construction consumes around 60% of the world’s materials and is responsible for around 53% of the world’s greenhouse gas emissions. Managing products and materials in a circular way, instead of producing new ones, can help cut down on material consumption and limit environmental impact. Nevertheless, the main concern of reusing recycled and waste materials is how to improve their capability to maintain (or even improve) infrastructure performance.

This Special Issue on “Reusing Processes of the Recyclable and Waste Materials in Infrastructure Engineering” seeks high quality studies focusing on the latest novel advances technologies for reusing infrastructure wastes (e.g., construction and demolition waste, steel slag, rubber, plactics, plant-based binders, etc.). Topics include, but are not limited to:

  • Railway circularity (rail, rail pads, sleeper, ballast, etc.);
  • Pavement circularity (foundation layers, pavement layers, urban and highway pavements, etc.);
  • Reusing Processes (separation technologies, alkali activation, rejuvenation, etc.);
  • Data science in infrastructure recycling (waste classification and pattern recognition, real-time inspection, digital twins, structural health monitoring, etc.).

Dr. Katerina Varveri
Prof. Dr. Guoqing Jing
Dr. Yunlong Guo
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. Processes is an international peer-reviewed open access monthly 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

  • reuse
  • circularity
  • data science
  • reusing processes
  • railway engineering
  • pavement engineering

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

16 pages, 3915 KiB  
Article
Recycling of Chrome-Containing Waste from a Mining and Processing Plant to Produce Industrial Products
by Yerbulat Tastanov, Nuriya Serzhanova, Almagul Ultarakova, Nurzhan Sadykov, Zhadyra Yerzhanova and Aisha Tastanova
Processes 2023, 11(6), 1659; https://doi.org/10.3390/pr11061659 - 29 May 2023
Cited by 4 | Viewed by 1923
Abstract
Prolonged development of ore deposits, ore beneficiation and metallurgical smelting of concentrates result in the accumulation of wastes, forming large-scale dumps and sludge ponds negatively affecting the environment and human health. The creation and introduction of industrial waste treatment technologies will make it [...] Read more.
Prolonged development of ore deposits, ore beneficiation and metallurgical smelting of concentrates result in the accumulation of wastes, forming large-scale dumps and sludge ponds negatively affecting the environment and human health. The creation and introduction of industrial waste treatment technologies will make it possible to dispose of them with the production of valuable commercial products and improve the environmental situation. In a research article on chemical beneficiation with the subsequent gravitational beneficiation of chrome-containing slurry tailings of Donskoy Ore-Mining and Beneficiation Plant (DOMBP), which processes chrome ore of the Kempirsay deposit in the Republic of Kazakhstan, Aktobe region, having considerable stocks of such waste is presented. The chromium-containing slurry tailings were heat-treated at 1100 °C, sintered with ammonium sulfate, water and sulfuric acid in a defined ratio at 300 °C, and then the resulting sinter was leached with water at 90 °C. The cake was washed to separate the liquid part from the solid part. The solid precipitate is the chromium-containing cake, which is upgraded by gravity concentration to a grade concentrate for ferroalloy production. When the solution is evaporated, magnesium sulfate with ammonium sulfate forms the Tutton’s salt ammoshenite. High-throughput chromium oxide extraction of 93.9% was achieved as a result of the research, and three products were obtained: (1) standard chromium concentrate with 49.48% Cr2O3 content, (2) ammoshenite used as a nitrogen–magnesium fertilizer and (3) forsterite, which is concentrated in gravity concentration tailings and can be used in the production of refractory minerals. Full article
(This article belongs to the Special Issue Reusing Processes of the Recyclable and Waste Materials in Infrastructure Engineering)
►▼ Show Figures

Figure 1

18 pages, 5252 KiB  
Article
Properties of a Low-Carbon Binder-Based Mortar Made with Waste LCD Glass and Waste Rope (Nylon) Fibers
by Mohammed Salah Nasr, Ali Shubbar, Tameem Mohammed Hashim and Aref A. Abadel
Processes 2023, 11(5), 1533; https://doi.org/10.3390/pr11051533 - 17 May 2023
Cited by 3 | Viewed by 970
Abstract
Carbon dioxide emissions are one of the problems that arouses the interest of scientists because of their harmful effects on the environment and climate. The construction sector, particularly the cement industry, is a significant source of CO2. On the other hand, [...] Read more.
Carbon dioxide emissions are one of the problems that arouses the interest of scientists because of their harmful effects on the environment and climate. The construction sector, particularly the cement industry, is a significant source of CO2. On the other hand, solid waste constitutes a major problem facing governments due to the difficulty of decomposing it and the fact that it requires large areas for landfill. Among these wastes are LCD waste glass (WG) and used rope waste. Therefore, reusing these wastes, for example, in concrete technology, is a promising solution to reduce their environmental impact. Limited studies have dealt with the simultaneous utilization of glass waste as a substitute for cement and rope waste (nylon) fiber (WRF). Therefore, this study aimed to partially replace cement with WG with the addition of rope waste as fibers. Thirteen mixtures were poured: a reference mixture (without replacement or addition) and three other groups containing WG and WRF in proportions of 5, 15 and 25% by cement weight and 0.25, 0.5 and 0.75% by mortar weight, respectively. Flow rate, compression strength, flexural strength, dry density, water absorption, dynamic modulus of elasticity, ultrasonic pulse velocity and electrical resistivity were tested. The results indicate that the best ratio for replacing cement with WG without fibers was 5% of the weight of cement. However, using WRF increased the amount of glass replacement to 25%, with an improvement in strength and durability characteristics. Full article
(This article belongs to the Special Issue Reusing Processes of the Recyclable and Waste Materials in Infrastructure Engineering)
►▼ Show Figures

Figure 1

16 pages, 3284 KiB  
Article
Experimental Study on Mechanical Properties of Concrete Containing Waste Glass and Its Application on Concrete-Filled Steel Tubular Columns
by Yan Diao, Long Chen and Yitao Huang
Processes 2023, 11(4), 975; https://doi.org/10.3390/pr11040975 - 23 Mar 2023
Cited by 2 | Viewed by 1767
Abstract
Waste glass (WG), as a nonbiodegradable material, poses a threat to environmental protection. The reuse of WG as a raw material to replace cement or aggregate in concrete production is gaining attention for recycling purposes. However, the optimal proportion of WG in concrete [...] Read more.
Waste glass (WG), as a nonbiodegradable material, poses a threat to environmental protection. The reuse of WG as a raw material to replace cement or aggregate in concrete production is gaining attention for recycling purposes. However, the optimal proportion of WG in concrete mixtures and its particle size distribution are hard to determine. Large glass particles are prone to leading to the undesirable alkali–silica reaction (ASR) in concrete. Therefore, in this study, cement and aggregate in concrete mixtures are partially replaced by combinations of glass powder (<30 μm) and glass beads (0.2–1.7 mm), respectively. Glass concretes (GCs) containing waste glass at various replacement ratios (0, 10, 15, 20, and 30%) are prepared, and their flowability and compressive strength are evaluated and compared. Finally, steel tubes filled by ordinary concrete (OCFSTs) and steel tubes filled by glass concrete (GCFSTs) are fabricated and tested in axial compression. The test results show that the slump and slump flow increase when the replacement ratio is lower than 20%, and the maximum slump value (250 mm) is achieved for concrete with the use of 20% waste glass. With regard to compressive strength, as the glass replacement percentage is increased, the compressive strength of GC continues to reduce. The maximum decrease of compressive strength (merely 70% of compressive strength for original concrete) is observed in GC mixed with 20% glass, which might be attributed to the smooth surface of glass, consequently weakening the interfacial bond strength between the glass and matrix. In terms of the bearing capacity of GCFSTs, the axial compressive strength of GCFSTs decreases as more GC is used. However, no obvious reduction is observed compared to OCFSTs (less than 10% for GCFSTs containing 30% GP). Moreover, GCFSTs show greater (no less than 25% more) deformational ability at peak strength over OCFST columns, demonstrating that GC is a promising alternative for normal concrete. Finally, the feasibility of existing design codes (AISC, EC4, and GB50936-2014) to assess the bearing capacity of GCFSTs is evaluated by comparing the test and calculated results. The current codes, in general, give a conservative prediction and EC4 provides the closest value (predicted to experimental peak load ratio is 0.9). Full article
(This article belongs to the Special Issue Reusing Processes of the Recyclable and Waste Materials in Infrastructure Engineering)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop