Influence of polypropylene residues on the physico-mechanical and water-resistance properties of gypsum plasters

Romero-Gómez, M.I.; Silva, Rui V.; Flores-Colen, I.; Brito, Jorge de

doi:10.1016/j.jclepro.2022.133674

Cited by 16 publications

(11 citation statements)

References 23 publications

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“…Thus, it can be observed that bulk density in the P0.65-10% sample has decreased by up to 7.35% compared to the reference material. A similar behaviour was observed by Romero-Gómez et al, by incorporating polypropylene residues in substitution percentages of 2.5-5-7.5-10% by weight [25]. In the same way, thermal conductivity with the largest amount of recycled raw material is 0.19 W/m•K, representing a 26.7% reduction compared to the P0.65 sample.…”

Section: Physical Characterization Resultssupporting

confidence: 83%

“…Mechanical strength and bulk density of gypsum composites with plastic waste: Reference is a plaster with a water/gypsum ratio of 0.7 by weight [24]; PP is polypropylene waste from coffee capsules [25]; EPS and XPS are expanded and extruded polystyrene waste, respectively [18]; Pipe foam insulation shredded in average diameter of 2.5 mm [26]; Plastic cable is shredded waste from low voltage cable sheaths [27]; Polycarbonate [28]; CD and DVD are shredded and screened waste [15]; LDPE is recycled low density polyethylene [29]; ELT-rubber is granulated rubber from disused tyres of average diameter 2.5 mm [30]; SAP (superabsorbent polymer) is 15 g additions of sodium polyacrylate [24].…”

Section: Figurementioning

confidence: 99%

“…On the other hand, this density reduction sometimes leads to an increase in the porosity of the material [24]. As these wastes have no water absorption capacity, some researchers have shown that the incorporation of these plastic wastes can have a positive impact on the durability of gypsum composites [25,32]. However, because of this lower final density of the hardened composites, thermal behaviour satisfactory results have also been obtained, for instance, EPS waste added to plaster materials, which reduces thermal conductivity by 61.9% compared to reference material [33].…”

Section: Figurementioning

confidence: 99%

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Initiative to Increase the Circularity of HDPE Waste in the Construction Industry: A Physico-Mechanical Characterization of New Sustainable Gypsum Products

Álvarez,

Ferrández,

Zaragoza-Benzal

et al. 2024

Applied Sciences

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The annual production of plastic waste worldwide has doubled in just two decades, with approximately 390 million tonnes of plastic waste now being generated. In this context, the construction industry must move towards the development of new, more sustainable materials made under circular economy criteria. In this work, a physico-mechanical characterisation of gypsum composites with the incorporation of high-density polyethylene (HDPE) waste, replacing 2–4–6–8–10% by volume of the original raw material, has been conducted. The results show how the incorporation of these plastic wastes improves the water resistance of the gypsum material without additions, as well as producing a decrease in thermal conductivity and greater resistance to impact. On the other hand, it has been found that, as the percentage of recycled raw material added increases, the mechanical resistance to bending and compression decreases, leading to fracture due to a lack of cohesion between the matrix and the waste. Nevertheless, in all the cases studied, mechanical strengths higher than those established by the EN 13279-2 standard were obtained. Thus, the results confirm the viability of these secondary raw materials to be used in the development of new products for sustainable building, especially in the design of prefabricated panels for false ceilings.

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Section: Physical Characterization Resultssupporting

confidence: 83%

Section: Figurementioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Initiative to Increase the Circularity of HDPE Waste in the Construction Industry: A Physico-Mechanical Characterization of New Sustainable Gypsum Products

Álvarez,

Ferrández,

Zaragoza-Benzal

et al. 2024

Applied Sciences

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“…Secara statistik, teknik spons hangat kompres hangat lebih bermakna dan kualitatif, perubahan suhu lebih baik setelah kompresi [24]. Kemampuan perpindahan panas yang sangat baik dimungkinkan oleh struktur unik gel yang menyebarkan panas secara bebas dan mempertahankan efek pendinginan yang konstan dan stabil yang bertahan hingga 8 jam [25]. Sejauh ini tubuh kalsium hidroksida padat (plester kapur slaked) dengan kekuatan mekanik tinggi belum dibuat.…”

Section: Pembahasanunclassified

Effectiveness of Warm Compresses and Plaster Compresses in Decreasing Body Temperature in Infants with Fever

Dentika,

Arniyanti

2023

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Introduction: Fever is the most common case in children, and almost all children have experienced it; some only have a low-grade fever, while others have a very high fever. Method: Qualitative research using case study design aims to describe the case studies obtained and carried out systematically in intensively collecting case study data for infant patients with fever. Result: Based on the results of case studies found, differences in the effectiveness of warm compresses and plaster compresses. Conclusion: The point of plaster compresses is faster than warm compresses in a decrease in body temperature in babies with fever. It is recommended that the family or mother apply a plaster compress to her baby with a fever because it is more effective at reducing body temperature

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“…These additions also make it possible to introduce circular economy criteria into the building process, favouring waste management and reincorporating construction and demolition waste into the production system of new prefabricated products [ 16 ]. In addition, it has been possible to verify how plaster composites with the incorporation of polymeric materials in their composition make it possible to obtain mechanical strengths that meet the requirements of the UNE-EN 13279-2 standard for gypsum composite materials applied in construction [ 17 , 18 ], as well as to achieve a higher acoustic absorption coefficient compared to traditional plaster [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization and under Water Action Behaviour of a New Plaster-Based Lightened Composites for Precast

2023

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Plaster is a construction material widely used for the production of prefabricated parts in building construction due to its high capacity for hygrothermal regulation, its good mechanical performance, and its fireproof nature, among other factors. Its historical use has been linked to ornamental elements, although more recent research is oriented towards the industrialisation of plaster composites and the design of prefabricated parts for false ceilings and interior partitions. In this work, the behaviour against water of four new plaster-based composite materials is studied, using additions of two types of super absorbent polymers (sodium polyacrylate and potassium polyacrylate) and a lightening material (vermiculite) in their manufacturing process. In addition, the transmission of water vapour through the samples was studied together with the water absorption capacity of the samples in order to check the suitability of the use of plaster-based materials exposed to these environments. The results of this study show that composites with the addition of super absorbent polymers as well as vermiculite significantly improve their water performance compared to traditional materials up to 7.3% water absorption with a minimal (13%) reduction in mechanical strength compared to current materials with similar additions. In this sense, a plaster material is obtained with wide possibilities of application in the construction sector that favours the development of sustainable and quality buildings, in line with Goal 9 for Sustainable Development included in the 2030 Agenda.

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Influence of polypropylene residues on the physico-mechanical and water-resistance properties of gypsum plasters

Cited by 16 publications

References 23 publications

Initiative to Increase the Circularity of HDPE Waste in the Construction Industry: A Physico-Mechanical Characterization of New Sustainable Gypsum Products

Initiative to Increase the Circularity of HDPE Waste in the Construction Industry: A Physico-Mechanical Characterization of New Sustainable Gypsum Products

Effectiveness of Warm Compresses and Plaster Compresses in Decreasing Body Temperature in Infants with Fever

Characterization and under Water Action Behaviour of a New Plaster-Based Lightened Composites for Precast

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