Effect on the Thermal Properties of Mortar Blocks by Using Recycled Glass and Its Application for Social Dwellings

Vicente Flores-Alés, Alexis Pérez-Fargallo, Jesús A. Pulido Arcas and Carlos Rubio-Bellido
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Vicente Flores-Alés: Department of Building Construction II, Universidad de Sevilla, 41012 Seville, Spain
Alexis Pérez-Fargallo: Department of Building Science, University of Bío-Bío, Concepción 1202, Chile
Jesús A. Pulido Arcas: Center for Research and Development of Higher Education, Graduate School of Arts and Sciences, College of Arts and Sciences, The University of Tokyo, Meguro City, Tokyo 153-8907, Japan
Carlos Rubio-Bellido: Department of Building Construction II, Universidad de Sevilla, 41012 Seville, Spain

Energies, 2020, vol. 13, issue 21, 1-16

Abstract: Including recycled waste material in cement mixes, as substitutes for natural aggregates, has resulted in diverse research projects, normally focused on mechanical capacities. In the case of recycled glass as an aggregate, this provides a noticeable improvement in thermal properties, depending on its dosage. This idea raises possible construction solutions that reduce the environmental impact and improves thermal behavior. For this research, an extended building typology that is susceptible to experiencing the risk of energy poverty has been chosen. The typology is typical for social housing, built using mortar blocks with crushed glass. First, the basic thermophysical properties of the mortars were determined by laboratory tests; after that, the dynamic thermal properties of representative constructive solutions using these mortars were simulated in seven representative climate zones in Chile. An analysis methodology based on periodic thermal transmittance, adaptive comfort levels and energy demand was run for the 21 proposed models. In addition, the results show that thermal comfort hours increases significantly in thermal zones 1, 2, 3 and 6; from 23 h up to 199 h during a year. It is in these zones where the distance with respect to the neutral temperature of the m50 solution reduces that of the m25 solution by half; i.e., in zone 1, from −429 °C with the m25 solution to −864 °C with the m50. This research intends to be a starting point to generate an analysis methodology for construction solutions in the built environment, from the point of view of thermal comfort.

Keywords: crushed glass; periodic thermal transmittance; energy demand; adaptive comfort; social housing (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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