Compressed Earth Blocks with Disposed Polypropylene Masks (COVID-19) DOI Creative Commons
Gustavo Vaz de Mello Guimarães,

Kristiano Cavalcante Vasconcelos de Mendonça,

Lucas Marques Pires da Silva

и другие.

Revista de Gestão Social e Ambiental, Год журнала: 2024, Номер 18(12), С. e09772 - e09772

Опубликована: Дек. 5, 2024

Objective: The aim of this research is to assess the feasibility incorporating processed COVID-19 masks into Compressed Earth Blocks (CEBs), with goal providing a sustainable disposal solution for these materials. Theoretical Framework: This section presents concepts soil-cement mixtures and polypropylene reinforcement, solid foundation understanding context research. Method: experimental methodology involved processing manufacturing CEBs. compressive strength CEBs produced without was tested. Results Discussion: were using thermal mechanical energy, resulting in fragments that compatible granular particles. Furthermore, not significantly affected. Research Implications: practical implications are related environmentally correct masks, contributing various Sustainable Development Goals. Originality/Value: use compressed earth blocks novel promising. From technical perspective, it noteworthy there no loss strength. an environmental incorporated construction material widely used types construction.

Язык: Английский

A comprehensive study of building materials and bricks for residential construction DOI

Sai Naveen Jonnala,

Debashish Gogoi, Sangjukta Devi

и другие.

Construction and Building Materials, Год журнала: 2024, Номер 425, С. 135931 - 135931

Опубликована: Апрель 1, 2024

Язык: Английский

Процитировано

16

Valorisation of coffee husk as replacement of sand in alkali-activated bricks DOI Creative Commons
Sourav Biswas, Nabil Hossiney, Mothi Krishna Mohan

и другие.

Case Studies in Construction Materials, Год журнала: 2024, Номер 21, С. e03440 - e03440

Опубликована: Июнь 19, 2024

The coffee industry is known to generate voluminous amount of waste during its production process. Different types such as hush ash and spent ground, name a few, have been extensively researched substitute in the construction industry. However, utilization husk for materials has seen limited exploration. In particular, there are no studies which investigate (WCH) alkali-activated bricks. Therefore, this research WCH was employed sand Alkali-activated bricks were synthesized with ground granulated blast furnace slag (GGBFS), fly (FA), sand, sodium silicate solution (SS). Sand replaced at replacement rates 0 %, 5 10 15 20 30 % by volume. developed evaluated strength, density, water absorption, porosity, efflorescence. Additionally, structural morphological characteristics assessed Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Scanning electron microscopy (SEM) analysis. results indicate that improve compressive strength maximum value 15.7 MPa, reduce density minimum 1509 kg/m3 composites WCH, respectively. absorption porosity increased incorporation due porous structure WCH. physico-chemical shows effective geopolymerization composite system further depict thermal stability insignificant weight loss 575 ℃. Finally, classify good quality per IS 1077: 1992 specifications, will practical feasibility

Язык: Английский

Процитировано

5

The Enhancement Mechanism for Effect of Silane Coupling Agent Modification of Polypropylene‐Based Disposable Medical Masks on the Performance of Fly Ash‐Based Geopolymer DOI
Xinli Zhang, Xia Li,

Wenhao Xue

и другие.

Journal of Applied Polymer Science, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

ABSTRACT Incorporation of disposable medical masks (DMMs) can improve the basic mechanical performance and crack resistance geopolymer composite (GPC). To interfacial bonding, DMMs were chemically modified using four silane coupling agents: KH550 (aminopropyl‐triethoxysilane), KH560 (glycidyletheroxypropyl‐trimethoxysilane), KH570 (3‐methacryloxypropyltrimethoxysilane), KH792 (N‐(β‐aminoethyl)‐γ‐aminopropyltrimethoxysilane). Macroscopic tests performed to assess compressive flexural strengths GPC. Additionally, microstructural carried out Fourier transform infrared spectroscopy (FTIR), Stereomicroscope, Scanning electron microscope (SEM) gain deeper insights into modification effects. Results showed that all agents enhanced hydrophilicity significantly improved overall composites. Among them, demonstrated most effective modification. The 28‐day GPC incorporating KH560‐treated reached 49.91 MPa 6.55 MPa, respectively, which 8.12% 30.22% higher than those containing untreated DMMs. FTIR SEM analyses revealed enhancement mechanism involved physicochemical interactions between matrix, led stronger bonding performance.

Язык: Английский

Процитировано

0

Recycled Surgical Mask Waste as a Resource Material in Sustainable Geopolymer Bricks DOI Creative Commons
Kritish Thoudam, Nabil Hossiney, Srinidhi Lakshmish Kumar

и другие.

Recycling, Год журнала: 2023, Номер 8(6), С. 93 - 93

Опубликована: Ноя. 19, 2023

With the advent of COVID-19 pandemic, global consumption single-use surgical masks has risen immensely, and it is expected to grow in coming years. Simultaneously, disposal environment caused plastic pollution, therefore, exigent find innovative ways handle this problem. In study, were processed a laboratory using mechanical grinding method obtain recycled (RSM). The RSM was added doses 0%, 1%, 2%, 3%, 4% by volume geopolymer bricks, which synthesized with ground granulated blast furnace slag (GGBS), rice husk ash (RHA), sand, sodium silicate (Na2SiO3) at ambient conditions for duration 28 days. developed bricks tested compressive strength, flexural density, water absorption, efflorescence, drying shrinkage. results study reveal that strength improved inclusion bricks. highest values 5.97 MPa 1.62 RSM, respectively. Further, reduction self-weight noticed an increase RSM. There no pronounced effect on absorption efflorescence properties. However, played role reducing shrinkage sustainability analysis divulges catalytic improving material performance, thereby proving be potential candidate low-carbon construction industry.

Язык: Английский

Процитировано

8

Compressed Earth Blocks with Disposed Polypropylene Masks (COVID-19) DOI Creative Commons
Gustavo Vaz de Mello Guimarães,

Kristiano Cavalcante Vasconcelos de Mendonça,

Lucas Marques Pires da Silva

и другие.

Revista de Gestão Social e Ambiental, Год журнала: 2024, Номер 18(12), С. e09772 - e09772

Опубликована: Дек. 5, 2024

Objective: The aim of this research is to assess the feasibility incorporating processed COVID-19 masks into Compressed Earth Blocks (CEBs), with goal providing a sustainable disposal solution for these materials. Theoretical Framework: This section presents concepts soil-cement mixtures and polypropylene reinforcement, solid foundation understanding context research. Method: experimental methodology involved processing manufacturing CEBs. compressive strength CEBs produced without was tested. Results Discussion: were using thermal mechanical energy, resulting in fragments that compatible granular particles. Furthermore, not significantly affected. Research Implications: practical implications are related environmentally correct masks, contributing various Sustainable Development Goals. Originality/Value: use compressed earth blocks novel promising. From technical perspective, it noteworthy there no loss strength. an environmental incorporated construction material widely used types construction.

Язык: Английский

Процитировано

0