Table of Content

Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials

Submission Deadline: 29 February 2024 Submit to Special Issue

Guest Editors

Assoc. Prof. Dr. Jin Yang, Hubei University of Technology, China. Email: jinyang@hbut.edu.cn
Assoc. Prof. Dr. Zongwu Chen, China University of Geosciences (Wuhan), China. Email: chenzw@cug.edu.cn
Dr. Zhengyao Qu, Institute of Materials Research and Engineering, Agency for Science, Technology and Research, Singapore, Email: zhengyao_qu@imre.a-star.edu.sg

Summary

Recycling industry solid wastes (recycled aggregate, smelting slag, reclaimed asphalt pavement, etc.) in civil engineering materials is an important strategy to save the nonrenewable resources and protect the environment. However, the material characteristics of solid wastes are quite different from natural resources. Some property defects of solid wastes have hindered their utilization in civil engineering materials, such as low strength of recycled aggregate and volume expansion of smelting slag. To promote the utilization of solid wastes, the aim of this special issue is to summarize the materials processing and modification technologies that can strengthen the properties of typical wastes and improve the performance of waste based civil engineering materials. Suggested topics related to this special issue include, but are not limited to:

• Processing and application technologies of smelting slag aggregate

• Modification and application technologies of recycled aggregate

• Processing and production of solid waste based binders

• Permeability and transport performances of solid waste based civil engineering materials

• Utilization of solid wastes in civil engineering materials


Keywords

Solid waste processing; Permeability and transport performances; Civil engineering materials; Recycling

Published Papers


  • Open Access

    ARTICLE

    A Machine-Learning Approach for the Prediction of Fly-Ash Concrete Strength

    Shanqing Shao, Aimin Gong, Ran Wang, Xiaoshuang Chen, Jing Xu, Fulai Wang, Feipeng Liu
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.029545
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract The composite exciter and the CaO to Na2SO4 dosing ratios are known to have a strong impact on the mechanical strength of fly-ash concrete. In the present study a hybrid approach relying on experiments and a machine-learning technique has been used to tackle this problem. The tests have shown that the optimal admixture of CaO and Na2SO4 alone is 8%. The best 3D mechanical strength of fly-ash concrete is achieved at 8% of the compound activator; If the 28-day mechanical strength is considered, then, the best performances are obtained at 4% of the compound activator. Moreover, the 3D mechanical strength… More >

  • Open Access

    ARTICLE

    Experimental Evaluation of Compressive Strength and Gas Permeability of Glass-Powder-Containing Mortar

    Yue Liang, Wenxuan Dai, Wei Chen
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.10, pp. 2639-2659, 2023, DOI:10.32604/fdmp.2023.027622
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract Glass powder of various particle sizes (2, 5, 10 and 15 μm) has been assessed as a possible cement substitute for mortars. Different replacement rates of cement (5%, 10%, 15%, and 20%) have been considered for all particle sizes. The accessible porosity, compressive strength, gas permeability and microstructure have been investigated accordingly. The results have shown that adding glass powder up to 20% has a significantly negative effect on the porosity and compressive strength of mortar. The compressive strength initially rises with a 5% replacement and then decreases. Similarly, the gas permeability of the mortar displays a non-monotonic behavior; first, it… More >

  • Open Access

    ARTICLE

    Influence of Erosion Induced by NaCl on the Mechanical Performances of Alkali-Activated Mineral Admixtures

    Jing Yu, Jie Ren, Guangming Shen, Weixiang Sun, Hui Wang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.9, pp. 2385-2398, 2023, DOI:10.32604/fdmp.2023.027877
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract In this paper, the influence of NaCl freeze-thaw (F-T) cycles and dry-wet (D-W) alternations on the flexural, compressive and bonding strengths of alkali-activated fly ash (FA) and a blast furnace slag powder (BFS) is investigated. The considered NaCl concentration is 3%. The effect of polypropylene fibers on the mechanical strengths is also examined. Scanning electron microscopy (SEM), thermogravimetry (TG) and X-ray diffraction (XRD) are selected to discern the mechanisms underpinning the NaCl-induced erosion. The obtained results indicate that the best results in terms of material resistance are obtained with admixtures containing 60% BFS and 40% FA in terms of mass… More >

  • Open Access

    ARTICLE

    Experimental Study of Thermal-Hydraulic-Mechanical Coupling Behavior of High-Performance Concrete

    Wei Chen, Wenhao Zhao, Yue Liang, Frederic Skoczylas
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.9, pp. 2417-2430, 2023, DOI:10.32604/fdmp.2023.030028
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract The design of an underground nuclear waste disposal requires a full characterization of concrete under various thermo-hydro-mechanical-chemical conditions. This experimental work studied the characterization of coupled thermo-hydro-mechanical effects using concretes made with cement CEM I or CEM V/A (according to European norms). Uniaxial and triaxial compression under 5 MPa confining pressure tests were performed under three different temperatures (T = 20°C, 50°C, and 80°C). The two concretes were dried under relative humidity (RH) to obtain a partially saturated state of approximately 70%. The results showed that the effects of water saturation and confining pressure are more important than that of… More >

  • Open Access

    ARTICLE

    Assessment of the Mechanical Properties of Carbon-Fiber Heating Cables in Snow and Ice Melting Applications

    Zhiyong Yang, Jiacheng Zhang, Henglin Xiao, Zhi Chen, Tian Bao, Yin Liu
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.9, pp. 2267-2288, 2023, DOI:10.32604/fdmp.2023.028652
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract The use of carbon-fiber heating cables (CFHC) to achieve effective melting of snow and ice deposited on roads is a method used worldwide. In this study, tensile and compressive tests have been conducted to analyze the mechanical properties of the CFHC and assess whether the maximum tensile and compressive strengths can meet the pavement design specifications. In order to study the aging produced by multiple cycles of heating and cooling, in particular, the CFHC was repeatedly heated in a cold chamber with an ambient temperature ranging between −20°C and +40°C. Moreover, to evaluate how the strength of the pavement is… More >

    Graphic Abstract

    Assessment of the Mechanical Properties of Carbon-Fiber Heating Cables in Snow and Ice Melting Applications

  • Open Access

    ARTICLE

    Numerical Analysis of the Hydrodynamic Behavior of a Remotely Operated Vehicle in Multi-Directional Flow

    Hongfei Cao, Zhongda Lyu, Xi Peng, Zhuo Zhao
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.9, pp. 2361-2384, 2023, DOI:10.32604/fdmp.2023.027470
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract In recent years, Remotely Operated Vehicles (ROVs) have played an increasingly important role in the construction and monitoring of underwater pile foundations. However, due to the open frame structure of such vehicles, a gap of knowledge still exists with regard to their hydrodynamic behavior. In this study, the hydrodynamic stability of such vehicles is investigated numerically by means of a multiple reference frame method. The hydrodynamic characteristics of the ROV when it moves horizontally and upward in the vertical plane are examined. It is found that there is interference between the horizontal and vertical thrusters of the ROV. There is… More >

  • Open Access

    ARTICLE

    Influence of High-Robustness Polycarboxylate Superplasticizer on the Performances of Concrete Incorporating Fly Ash and Manufactured Sand

    Panpan Cao, Xiulin Huang, Shenxu Bao, Jin Yang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.8, pp. 2041-2051, 2023, DOI:10.32604/fdmp.2023.027399
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract Using ethylene glycol monovinyl polyoxyethylene ether, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and acrylic acid as the main synthetic monomers, a high robustness polycarboxylate superplasticizer was prepared. The effects of initial temperature, ratio of acid to ether, amount of chain transfer agent, and synthesis process on the properties of the superplasticizer were studied. The molecular structure was characterized by GPC (Gel Permeation Chromatography) and IR (Infrared Spectrometer). As shown by the results, when the initial reaction temperature is 15°C, the ratio of acid to ether is 3.4:1 and the acrylic acid pre-neutralization is 15%, The AMPS substitution is 10%, the amount of… More >

    Graphic Abstract

    Influence of High-Robustness Polycarboxylate Superplasticizer on the Performances of Concrete Incorporating Fly Ash and Manufactured Sand

  • Open Access

    ARTICLE

    Water Stability Improvement of Acid Fine Aggregate-Based Asphalt Concrete

    Yihan Sun, Lihua Chu, Yudong Cheng, Fengxia Chi, Chenchen Zhang, Pengcheng Sun
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.8, pp. 2171-2180, 2023, DOI:10.32604/fdmp.2023.026892
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract In general, acid aggregates are not used in combination with asphalt concrete because of their poor compatibility with the asphalt binder, which typically results in a scarce water stability of the concrete. In the present study, the feasibility of a new approach based on the combination of acid granite fine aggregate with alkaline limestone coarse aggregate and Portland cement filler has been assessed. The mineral and chemical compositions of these three materials have first been analyzed and compared. Then, the effect of different amounts of Portland cement (0%, 25%, 50%, 75% and 100% of the total filler by weight) on… More >

  • Open Access

    ARTICLE

    Analysis of a Composite Admixture Based on Ready-Mixed Concrete Waste Residuals

    Jinfa Jiang, Long Xiong, Ming Bao, Zihan Zhou
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.8, pp. 1983-1995, 2023, DOI:10.32604/fdmp.2023.026023
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract Reasonable treatment and utilization of waste residuals discharged during the production of ready-mixed concrete is an important problem in the cement industry. In this study, a composite admixture was prepared by using ready-mixed concrete waste residuals, furnace slag, and water granulated slag. The grinding characteristics of such material were investigated. Moreover, the effect of such admixture on cement hydration and pore structure was analyzed by X-ray diffraction, thermogravimetric-differential scanning calorimetry, scanning electron microcopy and mercury intrusion porosimetry. As shown by the results: The grinding characteristics of the waste residuals can be improved significantly by mixing them with furnace slag and… More >

    Graphic Abstract

    Analysis of a Composite Admixture Based on Ready-Mixed Concrete Waste Residuals

  • Open Access

    ARTICLE

    On the Use of Recycled Asphalt and Trinidad Lake Asphalt (TLA) for the Preparation of High Modulus Asphalt Concrete

    Chao Li, Guodong Zeng, Yang Fang, Hongming Huang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.7, pp. 1939-1950, 2023, DOI:10.32604/fdmp.2023.026103
    (This article belongs to this Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract Rutting of asphalt pavement occurs earlier and is more serious under the increasingly heavy traffic load conditions that can be found in subtropical monsoon climate regions. High modulus asphalt concrete (HMAC) with excellent anti-rutting and anti-fatigue properties is generally used to mitigate this issue. Given the relatively high cost of the additives used in this type of asphalt, in this study the feasibility of using recycled asphalt mixture (RAP) and Trinidad lake asphalt (TLA) for the preparation of HMAC is considered. The mineral composition of the RAP is first analyzed, then the TLA modified asphalt with different levels of RAP… More >

Share Link