Lightweight material made with gypsum and extruded polystyrene waste with enhanced thermal behaviour

San-Antonio-González, Alicia; Merino, Mercedes del Río; Arrebola, Carmen Viñas; Villoria-Sáez, Paola

doi:10.1016/j.conbuildmat.2015.05.040

Cited by 67 publications

(23 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, despite slightly decreasing the conductivity values, the worst results were achieved by the Scenario 2 samples, since the amount of plastic residue contained in them was minimal compared to the other series. The achieved results are in accordance with other previous research, which demonstrated that the amount of plastic waste added to the gypsum matrix improved the thermal behavior of the plaster [14,16].…”

Section: Thermal Conductivity Test Resultssupporting

confidence: 92%

Reuse of CD and DVD Wastes as Reinforcement in Gypsum Plaster Plates

et al. 2020

View full text Add to dashboard Cite

The continuous and rapid evolution in the field of computing, and in particular in the field of storage devices, has led to the obsolescence of optical discs in favour of mass storage devices. In that sense, a large number of CDs and DVDs become obsolete each day in the world. In trying to create a recovery solution for those pieces, research in which polycarbonate (PC) waste from recycled discs have been used to develop new gypsum coating materials and products has been conducted. In a previous study, the physical and mechanical properties of new gypsum plasters, with PC waste as aggregate, were studied. Following that study, this article aims at creating new gypsum plaster false ceiling plates, using CD and DVD residues in different scenarios: as crushed aggregate in the gypsum matrix, as full reinforcement pieces of the plates and as a combination of both. The mechanical behaviour and the thermal conductivity of the new pieces have been analysed in this paper. The results showed an important improvement in the mechanical and thermal properties of the plates when the PC waste was used in many scenarios.

show abstract

Section: Thermal Conductivity Test Resultssupporting

confidence: 92%

Reuse of CD and DVD Wastes as Reinforcement in Gypsum Plaster Plates

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The first group includes studies made by San-Antonio-González et al [ 25 , 26 ], who used EPS and XPS as aggregates in the development of lightweight gypsum plasters with enhanced thermal properties. In this sense, González-Madariaga and Macia [ 27 ] also studied the influence of EPS waste in the generation of new gypsum panels for construction.…”

Section: Introductionmentioning

confidence: 99%

Use of Polycarbonate Waste as Aggregate in Recycled Gypsum Plasters

et al. 2020

View full text Add to dashboard Cite

The use of gypsum as an indoor coating material for buildings is very extensive. This means that huge amounts of gypsum waste are generated daily worldwide. Therefore, many researchers in the last years have been working on the generation of new gypsum-related materials and products that incorporate recycled gypsum waste as a replacement for the commercial one. On the other hand, trying to reduce the large amounts of plastic generated globally each year, several studies have used different types of plastic waste as aggregates for the development of new construction and building materials. However, up to now, no previous studies have been found in which any type of plastic waste has been used as an aggregate in a recycled gypsum matrix. This paper presents a study in which two different types of waste were mixed for the development of new gypsum plasters: unheated gypsum waste from industrial plasterboard production (GPW) and polycarbonate (PC) waste from rejected compact discs (CDs) and digital versatile discs (DVDs). In this sense, the mechanical and thermal performance of plasters was evaluated. Finally, in order to evaluate the changes in the microstructure of the composites, a scanning electron microscopy (SEM) analysis was conducted. The results showed a good performance of the new composites when both types of waste were combined in the mixes. New lightweight eco-efficient plasters, completely recycled, with enhanced flexural strength (by 14.8%), compressive strength (by 26.8%), and thermal conductivity (42.8% less), compared to the reference material, were achieved.

show abstract

“…Also, other researchers are working with other light loads from building construction and demolition waste (CDW) as cellular glass [13] or expanded and extruded polystyrene [14,15].…”

Section: Review On Lightenedmentioning

confidence: 99%

Analysis of the Relationship between Density and Mechanical Strength of Lightened Gypsums: Proposal for a Coefficient of Lightening

Astorqui

Merino

Sáez

et al. 2017

Advances in Materials Science and Engineering

Self Cite

View full text Add to dashboard Cite

This article develops a relationship between the reduction of density in lightened gypsum and the addition of expanded and/or extruded polystyrene waste from the construction sector and their mechanical behavior. The equations determined in this study allow us to know the flexural and compressive strengths of a lightened gypsum/plaster compound once its density is known. The results show that there is an exponential relationship between the density of the compound and its strength. The methodology followed included a compilation of the results obtained in previous research works on lightweight gypsums, analyzing the relationship between density and mechanical strength and comparing them with the equations developed in this research. The results obtained by previous researchers have a good adjustment with the proposed models, and only perlite compounds present greater deviations in the compressive strength analysis. Also, a dimensionless lightening coefficient is defined which can help to determine the best application for a lightweight gypsum compound, comparing it with an ideal lightweight gypsum.

show abstract

Lightweight material made with gypsum and extruded polystyrene waste with enhanced thermal behaviour

Cited by 67 publications

References 12 publications

Reuse of CD and DVD Wastes as Reinforcement in Gypsum Plaster Plates

Reuse of CD and DVD Wastes as Reinforcement in Gypsum Plaster Plates

Use of Polycarbonate Waste as Aggregate in Recycled Gypsum Plasters

Analysis of the Relationship between Density and Mechanical Strength of Lightened Gypsums: Proposal for a Coefficient of Lightening

Contact Info

Product

Resources

About