New lightened plaster material with dissolved recycled expanded polystyrene and end-of-life tyres fibres for building prefabricated industry

Zaragoza-Benzal, Alicia; Atanes-Sánchez, Evangelina; Morón, Carlos

doi:10.1016/j.cscm.2023.e02178

Cited by 8 publications

(9 citation statements)

References 53 publications

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“…A similar effect on the decrease in mechanical strength was observed by Vidales et al, who added plastic waste from electrical cables [41], and by Asadi et al, who incorporated waste from the automotive sector to produce gypsum mortars under circular economy criteria [42]. The relationship between the decrease in flexural strength and the modulus of elasticity, as well as between the compressive strength and surface hardness, has been observed in previous studies using textile fibres from ELT [43]. Finally, it should be noted that the incorporation of rubber wastes in other investigations has led to a significant decrease in the surface hardness of gypsum composites.…”

Section: Mechanical Characterisation Testssupporting

confidence: 76%

“…sum material by ELT aggregates of a size between 0 and 0.8 mm [46]. Similarly, the incorporation of other secondary raw materials from ELT, such as textile fibres in the manufacture of gypsum composites, has also led to a decrease in the final thermal conductivity of the materials developed and an improvement in their energy efficiency [43].…”

Section: Design and Characterisation Of New Sustainable Prefabricated...mentioning

confidence: 99%

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Eco-Design and Characterization of Sustainable Lightweight Gypsum Composites for Panel Manufacturing including End-of-Life Tyre Wastes

Ferrández,

Álvarez,

Zaragoza-Benzal

et al. 2024

Materials

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The incorporation of rubber recycled aggregates from end-of-life tyres (ELT) in the manufacturing process of sustainable building materials has gained great interest in recent decades as a result of the large volume of this waste being generated annually. In this work, the objective is to make a contribution towards the circularity of construction products by carrying out a physico-mechanical characterisation of new gypsum composites made with the incorporation of these recycled rubber aggregates. To this end, up to 30% by volume of the original raw material has been substituted, analysing the mechanical resistance to bending and compression. Although lower than those of traditional gypsum material, both properties exceed the limits set at 1 and 2 MPa, respectively, by the current regulations. In addition, water absorption by capillarity significantly decreases, and thermal conductivity is reduced by more than 35% with respect to the reference material. Finally, in order to provide the research with a practical application, a prefabricated plate design has been proposed that incorporates the gypsum materials studied and an agglomerated rubber band that increases the thermal resistance and improves the efficiency of the designed construction system. In this way, this research reflects the potential of these novel building materials and explores new avenues for their application in building construction.

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Section: Mechanical Characterisation Testssupporting

confidence: 76%

Section: Design and Characterisation Of New Sustainable Prefabricated...mentioning

confidence: 99%

Eco-Design and Characterization of Sustainable Lightweight Gypsum Composites for Panel Manufacturing including End-of-Life Tyre Wastes

Ferrández,

Álvarez,

Zaragoza-Benzal

et al. 2024

Materials

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“…The P0.65-8% sample, which contains the most HDPE waste amount suitable for precast elaboration, reduced the footprint by up to 12.3% compared to P0.65. This effect has been observed in previous research that has used waste plastics to elaborate prefabricated panels [58].…”

Section: Precast Samples Resultssupporting

confidence: 68%

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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“…Numerous studies have explored the feasibility and effectiveness of new recycled materials derived from CDW, including cement [84], concrete [85], mortars [86], plasters [87], gypsums [88], plastics [89,90], insulation materials [91], bricks [92,93], soil reinforcement [94], and fire-resistant materials [95].…”

Section: -Materials Recyclingmentioning

confidence: 99%

Circular Material Usage Strategies and Principles in Buildings: A Review

Santos,

Cervantes,

Zaragoza-Benzal

et al. 2024

Buildings

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Building construction accounts for a significant proportion of global greenhouse gas emissions, raw material extraction, and waste production. Applying circular economy (CE) principles in the building construction industry would considerably reduce these values. However, uptake by the industry is relatively slow, which is largely attributed to sectoral barriers, including limitations in knowledge and experience. This review paper aims to assess and contribute to diminishing these obstacles by offering a comprehensive review of circular material usage principles and strategies within the construction sector. Opportunities and facilitators of change are also presented, including innovations and emerging technologies in recycling, digitization, robotic systems, novel materials, and processing. Finally, four case studies demonstrate the application of circular theory via a novel block system, recycled aggregate, modular kitchen reuse, and an energy efficiency retrofit. The conclusions show that future efforts should prioritize the development of strong regulatory frameworks, awareness initiatives, and international cooperation. In this regard, the integration of technological advancements, such as AI, robotics, and blockchain, is essential for optimizing waste management efficiency. Furthermore, education on circular practices plays a critical role. Through global collaboration, standardizing circular construction approaches can promote a more sustainable and resilient building construction industry.

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New lightened plaster material with dissolved recycled expanded polystyrene and end-of-life tyres fibres for building prefabricated industry

Cited by 8 publications

References 53 publications

Eco-Design and Characterization of Sustainable Lightweight Gypsum Composites for Panel Manufacturing including End-of-Life Tyre Wastes

Eco-Design and Characterization of Sustainable Lightweight Gypsum Composites for Panel Manufacturing including End-of-Life Tyre Wastes

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

Circular Material Usage Strategies and Principles in Buildings: A Review

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