Special Issue "Materials in Sustainable Buildings"

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Materials, and Repair & Renovation".

Deadline for manuscript submissions: 20 February 2023 | Viewed by 2948

Special Issue Editors

Dr. Huazhe Jiao
E-Mail Website
Guest Editor
School of Civil Engineering, Henan Polytechnic University, Jiaozuo, China
Interests: hybrid composites; fiber; building materials; underground engineering construction
Prof. Dr. Juanhong Liu
E-Mail Website
Guest Editor
School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, China
Interests: new concrete materials; mine filling; reinforcement technology of underground engineering
Dr. Lei V. Zhang
E-Mail Website
Guest Editor
School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin, China
Interests: valorization of industrial and mining wastes for sustainable construction materials; alkali-activated materials

Special Issue Information

Dear Colleagues,

I would like to invite you to contribute to a Special Issue of the open-access journal Buildings that will be dedicated to “Materials in Sustainable Buildings”. The concept of sustainable building is to reduce environmental load and energy consumption, select green building materials and reduce the generation of building solid wastes, and use advanced technology and equipment to recycle and reuse building solid wastes. Accurately understanding the research mechanism of solid waste utilization and the mechanical properties of green building materials, realizing resource utilization, improving the utilization rate of natural resources, and reducing environmental pollution are very important for the development of sustainable buildings.

This Special Issue aims to collect the latest research results on green building materials and solid waste utilization. Topics of interest include but are not limited to:

  • Solid waste resource utilization;
  • Research progress of green building materials;
  • Research on low carbon construction technology innovation;
  • Development trend of 3D printing technology;
  • Prospect of building materials for carbon reduction and carbon sequestration;
  • Research and application progress of artificial materials.

Dr. Huazhe Jiao
Prof. Dr. Juanhong Liu
Dr. Lei V. Zhang
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. Buildings 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 1800 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

  • 3D printing
  • solid waste utilization
  • green building materials
  • carbon fixing building materials
  • low carbon construction
  • artificial materials

Published Papers (7 papers)

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Research

Article
Shear Behavior of T-Shaped Concrete Beams Reinforced with FRP
Buildings 2022, 12(12), 2062; https://doi.org/10.3390/buildings12122062 - 24 Nov 2022
Viewed by 241
Abstract
The calculation formula for bearing capacity was verified and further corrected through the current study of the influences of different parameters on the shear behavior of concrete T-beams reinforced with surface-embedded FRP. Tests were conducted on 14 beams reinforced with FRP tendons, including [...] Read more.
The calculation formula for bearing capacity was verified and further corrected through the current study of the influences of different parameters on the shear behavior of concrete T-beams reinforced with surface-embedded FRP. Tests were conducted on 14 beams reinforced with FRP tendons, including assessments of different concrete strength grades, longitudinal reinforcement ratios, surface characteristics, types, diameters, reinforcement modes, FRP spacings, and specimen shear span ratios. The results show that surface-embedded FRP reinforcement technology can be utilized to improve the overall stiffness and shear strength of beams, delay the development of oblique cracking, reduce the width of diagonal cracking, and improve the bite cooperation between concrete aggregates, thus improving the manifestation of reinforcement. The shear failure mechanism of reinforced concrete beams, strengthened with surface-embedded FRP, seemed to be similar to that of ordinary reinforced concrete beams. The mechanism of action was identical to that of stirrups, and the utilization factor of FRPs was determined. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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Article
Recycling of Waste Stone Powder in High Fluidity Grouting Materials for Geotechnical Engineering Reinforcement
Buildings 2022, 12(11), 1887; https://doi.org/10.3390/buildings12111887 - 04 Nov 2022
Viewed by 255
Abstract
Clay cement grout is frequently employed in geotechnical reinforcement projects. However, laboratory test revealed that clay cement slurry does not consolidate in a closed environment for an extended period of time, with cracks forming during the consolidation process under natural conditions, indicating that [...] Read more.
Clay cement grout is frequently employed in geotechnical reinforcement projects. However, laboratory test revealed that clay cement slurry does not consolidate in a closed environment for an extended period of time, with cracks forming during the consolidation process under natural conditions, indicating that the geotechnical reinforcement poses dangers. Stone powder is a powdery solid waste similar to clay materials. Stone powder particle surfaces provide an attachment point for cement reaction, which can speed up cement hydration, with the ability to substitute clay cement slurry. According to our findings, the bleeding rate of clay cement slurry is 14.80% at 290 mm fluidity, and that of the same mass ratio (1:3) as stone powder cement slurry is 11.09%. The bleeding rate is minimal, which promotes the creation of an integral structure after setting between the slurry and lose rock and soil. Mechanical test results show that the strength of the stone powder cement slurry hardened body is 1458 kPa, whereas the strength of the clay cement slurry hardened body is 436 kPa. Microstructural analysis shows that the stone powder cement hardened body has more hydration products and is porous than the clay cement hardened body. The hardened body of stone powder cement slurry has high strength and resistance to external loads, which can increase the bearing capacity and improve the geotechnical reinforcement effect. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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Article
Predicting the Geopolymerization Process of Fly-Ash-Based Geopolymer Using Machine Learning
Buildings 2022, 12(11), 1792; https://doi.org/10.3390/buildings12111792 - 26 Oct 2022
Viewed by 334
Abstract
The process of geopolymerization affects the freshness and hardening properties of fly ash base polymer. The prediction of geological polymerization parameters, such as DPT, DPH, GPT, and GPH, is very important for the mixing optimization of FA base polymer. In this study, machine [...] Read more.
The process of geopolymerization affects the freshness and hardening properties of fly ash base polymer. The prediction of geological polymerization parameters, such as DPT, DPH, GPT, and GPH, is very important for the mixing optimization of FA base polymer. In this study, machine learning models such as backpropagation neural network, support vector regression, random forest, K-nearest neighbor, logistic regression, and multiple linear regression were used to predict the above geological polymerization parameters and explain the influence of composition on the geological polymerization of FA base polymer. Results show that RF was the most stable ML model and had the best predictive performance on the test sets of GPT, GPH, DPT, and DPH, with correlation coefficients of 0.88, 0.95, 0.92, and 0.95, respectively. The variable importance and sensitivity were analyzed by SHapley Additive exPlanations. Results indicate that temperature is the most significant input variable affecting the DPT, DPH, and GPH with SHAP values of 0.09, 4.83, and 1.03, respectively. For GPT, the SHAP value of temperature is 6.89, slightly lower than that of LFR (6.95); yet it is a still significantly important input variable. The mole ratio and alkaline solution concentration were also important and negatively contributed to DPT and DPH, respectively. Besides, both GPT and GPH were sensitive to the mass ratio of liquid-to-fly ash which can promote the geopolymerization extent and shorten the geopolymerization time at a small content. The results of this study pave the way for automatic mixture optimization of FA-based geopolymers. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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Article
Categorization of Factors Affecting the Resistance and Parameters Optimization of Ultra-Fine Cemented Paste Backfill Pipeline Transport
Buildings 2022, 12(10), 1697; https://doi.org/10.3390/buildings12101697 - 15 Oct 2022
Viewed by 347
Abstract
Ultra-fine cemented paste backfill (UCPB) is prepared using tailings, binder and water. The factors affecting the resistance of UCPB pipe transport are numerous and complex, and the factor interactions restrict the rational development of the filling pipe transport design, which is not conducive [...] Read more.
Ultra-fine cemented paste backfill (UCPB) is prepared using tailings, binder and water. The factors affecting the resistance of UCPB pipe transport are numerous and complex, and the factor interactions restrict the rational development of the filling pipe transport design, which is not conducive to reducing the resistance. This paper categorizes and integrates the factors of pipe transport resistance by theoretical analysis and uses response surface methodology (RSM) to study the influence of different types of factors on the UCPB pipe transport resistance. The results show that the pipe transport resistance factors are classified into endogenous and exogenous factors. According to the classification, the reduction rate of the optimized pipe transport resistance is as high as 25.31% and 15.81%. This shows that the categorization of factors affecting the pipe transport resistance is important for investigating UCPB pipe flow. The single-factor terms with the highest significance under the effect of endogenous and exogenous factors are mass concentration and pipe diameter, respectively. The two interaction terms with highest significance are mass concentration and slurry temperature, pipe diameter and flow velocity, respectively. The results provide new ideas to reduce the resistance of mine pipeline and improve the filling benefit and convenience of pipeline design. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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Article
Study on Mechanical and Rheological Properties of Solid Waste-Based ECC
Buildings 2022, 12(10), 1690; https://doi.org/10.3390/buildings12101690 - 14 Oct 2022
Viewed by 341
Abstract
As one of the main raw materials of engineered cementitious composite (ECC), fly ash exerts the “ball effect” and “pozzolanic effect” in concrete, which improves the working performance of concrete and enhances the strength of the concrete matrix. Polyvinyl alcohol (PVA) fiber has [...] Read more.
As one of the main raw materials of engineered cementitious composite (ECC), fly ash exerts the “ball effect” and “pozzolanic effect” in concrete, which improves the working performance of concrete and enhances the strength of the concrete matrix. Polyvinyl alcohol (PVA) fiber has been widely used in the preparation of ECC, while ground fly ash can be used to enhance the performance of ECC as a kind of high-activity admixture. In this paper, the compressive strength, flexural strength and flexural toughness of ECC prepared from different types of fly ash (raw fly ash, sorted fly ash and ground fly ash) are compared, and the rheological properties of the ECC are analyzed by studying the two parameters of yield stress and plastic viscosity. The results show that the smaller the particle size of fly ash is, the more sufficient it reacts with Ca(OH)2 produced by cement hydration, and the more it can improve the compressive strength and flexural strength of the matrix. In addition, the smaller the particle size of fly ash, the higher the yield stress and plastic viscosity of ECC; therefore, the distribution of PVA fiber in ECC is more uniform, thereby improving the flexural toughness and ductility of ECC. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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Article
Fracture Mechanical Properties of Steel Fiber Reinforced Self-Compacting Concrete under Dry–Wet Cycle Sulfate Attack
Buildings 2022, 12(10), 1623; https://doi.org/10.3390/buildings12101623 - 07 Oct 2022
Viewed by 539
Abstract
Sulfate attack is the most common form of the durability damage of hydraulic concrete, and the performance degradation of cracked structural components is more significant at the position of water level change. Fly ash, a widely utilized supplementary cementitious material, can effectively improve [...] Read more.
Sulfate attack is the most common form of the durability damage of hydraulic concrete, and the performance degradation of cracked structural components is more significant at the position of water level change. Fly ash, a widely utilized supplementary cementitious material, can effectively improve the durability of concrete. In this paper, fly ash was used to partially replace Portland cement at 0 w%, 40 w%, 50 w%, 60 w%, and 70 w%, respectively. Through the three-point bending beam test with notch and the dry–wet cycle of sulfate attack, the change law of the fly ash content on the fracture mechanical properties of steel fiber reinforced self-compacting concrete (SFSCC) and its degradation mechanism under sulfate attack was studied. The results show that the load–crack mouth opening displacement curve of SFSCC changed from a steamed bread peak to a sharp peak under 30 dry–wet cycles of sulfate attack. The fracture toughness, peak load, and fracture energy of SFSCC with a high-volume fly ash increased with the increase in the fly ash content, while they reversed after sulfate attack. When the percentage of fly ash was 70 w%, the retention ratio of the fracture parameters was lower than that of SFSCC without incorporating fly ash, and when the percentage of fly ash was 50 w%, SFSCC had good bearing capacity, fracture mechanical properties, and corrosion resistance. The corrosion product of the reference SFSCC with 30 dry–wet cycles of sulfate attack was ettringite, whereas the SFSCC with a high-volume fly ash had no obvious corrosion products and the microstructure became looser. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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Article
Curing Stress Influences the Mechanical Characteristics of Cemented Paste Backfill and Its Damage Constitutive Model
Buildings 2022, 12(10), 1607; https://doi.org/10.3390/buildings12101607 - 04 Oct 2022
Viewed by 486
Abstract
As mechanical characteristics are one of the most important indexes that represent the backfill effect of CPB, curing stress is less considered, thus, establishing a damage constitutive model under the effect of curing stress has great significance for the stability of CPB. Firstly, [...] Read more.
As mechanical characteristics are one of the most important indexes that represent the backfill effect of CPB, curing stress is less considered, thus, establishing a damage constitutive model under the effect of curing stress has great significance for the stability of CPB. Firstly, a multifield coupling curing experiment was developed, and a uniaxial pressure testing experiment was used to test the mechanical parameters. Then, the evolution rule of mechanical characteristics of CPB, considering the effect of curing stress, was analyzed. Secondly, combined with elastic mechanics and damage mechanics theory, a damage constitutive model of CPB was explored. Thirdly, based on the laboratory results, an established damage constitutive model was verified. The results indicate that uniaxial compressive strength (UCS) of the CPB was significantly improved because of increasing curing stress and was also influenced by curing age. It was also shown that there existed four stages for the stress-strain curve of the CPB specimens. Moreover, the stress-strain curves of the model and the experiment’s results were the same. There were also good validity and rationality for the established two-stage damage constitutive model, which can provide a good reference for engineering applications of CPB. Full article
(This article belongs to the Special Issue Materials in Sustainable Buildings)
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