Compatibility between gypsum and polyamide powder waste to produce lightweight plaster with enhanced thermal properties

Gutiérrez-González, S.; Gadea, J.; Rodríguez, Ángel; Blanco-Varela, María Teresa; Carpintero, Verónica Calderón

doi:10.1016/j.conbuildmat.2012.02.061

Cited by 66 publications

(35 citation statements)

References 19 publications

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values obtained for X in this research are in close correspondence too with the thermal conductivity measured in similar materials used forthermal insulation in building construction; for instance: cork-gypsum composites [5], gypsum with polyamide [8] and gypsum with polyurethane foam wastes [9].…”

Section: Thermal Testsupporting

confidence: 82%

See 1 more Smart Citation

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

2013

View full text Add to dashboard Cite

abstra ctThis work presents the main experimental results obtained from the study of plaster test pieces and boards with addition of various volumetric rubber fractions from mechanical grinding of end-of-life tires (ELTs), in three different particle size gradations. It includes a description of the materials employed, and their proportions. The physical and mechanical properties, as well as the thermal conductivity and acous-tic insulation properties are analyzed. Experimental results obtained for specimens with addition of recy-cled rubber are compared with similar ones, carried out on specimens of plaster of identical features without any addition, evaluating the influence of the particle size and mixture proportions. An improve-ment in thermal and acoustic performance has been obtained as well as a reduction in density, and as a result, some constructive applications for paving and slabs in rehabilitation works are proposed.

show abstract

Section: Thermal Testsupporting

confidence: 82%

“…Studies have also been found to improve the thermal performance of plaster with the addition of other materials (polyamide powder and polyurethane foam), in which a reduction of strengths [8,9] also occurs.…”

Section: Introductionmentioning

confidence: 99%

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

2013

View full text Add to dashboard Cite

show abstract

“…26 The thermal conductivity of GHB particles is close to that of the air (0·023 W m −1 K −1 ) and far lower than those of other concrete aggregates. The internal cavities, sealed surfaces and the air sealed in the cavities play a key role in forming the thermal-insulating medium and in reducing the thermal conductivity.…”

Section: Thermal Conductivitymentioning

confidence: 98%

An experimental study to evaluate the effects of adding glazed hollow beads on the mechanical properties and thermal conductivity of concrete

Zhao

Wang

et al. 2015

Materials Research Innovations

View full text Add to dashboard Cite

This paper discusses the effects of glazed hollow bead particles on the mechanical properties and thermal conductivity of concrete and the micro appearances of the specimens through the scanning electron microscope. In the experiments, glazed hollow bead was added to the concrete to substitute sands. The amount of glazed hollow bead was kept at 5, 10, 15 and 20% by weight. The results show that the higher the glazed hollow bead amount, the higher will be the percentage of broken glazed hollow bead particles during the mixing process of concrete and that the addition of glazed hollow bead particles reduces the density, compressive strength, elasticity modulus and thermal conductivity coefficient of concrete. When the glazed hollow bead amount reaches 20%, the density, thermal conductivity coefficient, 56-day compressive strength and elasticity modulus of concrete decrease by 14, 69·5, 18·7 and 21·4%, respectively, compared with normal concrete.

show abstract

“…This improvement was not only due to the lower density of the material, but was also dependent on the type of waste. Consequently, the GPB with PFW plasterboards, characterized by their closed cell structures with a lower thermal conductivity coefficient than the other waste products, showed the best behavior (31).…”

Section: Thermal Resistivitymentioning

confidence: 98%

Characterization of gypsum plasterboard with polyurethane foam waste reinforced with polypropylene fibers

et al. 2016

Self Cite

View full text Add to dashboard Cite

Gypsum plasterboard that incorporates various combinations of polyurethane foam waste and polypropylene fibers in its matrix is studied. The prefabricated material was characterized in a series of standardized tests: bulk density, maximum breaking load under flexion stress, total water absorption, surface hardness, thermal properties, and reaction to fire performance. Polypropylene fibers were added to the polyurethane gypsum composites to improve the mechanical behavior of the plasterboard under loading. The results indicate that increased quantities of polymer waste led to significant reductions in the weight/surface ratio, the mechanical strength and the surface hardness of the gypsum, as well as improving its thermal resistance. The polypropylene fibers showed good adhesion to the polymer and the gypsum matrix, which enhanced the mechanical performance and the absorption capacity of these compounds. The non-combustibility test demonstrated the potential of the new material for use in internal linings. RESUMEN: Caracterización de placas de yeso con residuos de espuma de poliuretano reforzadas con fibras de polipropileno.Este artículo presenta un estudio experimental basado en la reutilización de residuos de poliuretano en una matriz de yeso para elaborar una placa de yeso laminado. Las placas fueron caracterizadas mediante los ensayos normalizados de densidad aparente, carga de rotura máxima a flexión, absorción total de agua, dureza superficial y reacción al fuego. Se han introducido fibras de polipropileno en la matriz con el objetivo de aumentar la resistencia mecánica del material. Los resultados muestran que el incremento de residuo polimérico en el material implica importantes reducciones de peso, resistencia mecánica y dureza superficial, a la par que se mejora su resistencia térmica consiguiéndose valores similares a los comerciales. Las fibras de polipropileno mostraron una buena adhesión con el polímero, mejorando el comportamiento mecánico y la capacidad de absorción. El ensayo de reacción al fuego confirmó que los residuos de poliuretano pueden ser empleados en la fabricación de placas de yeso laminado en cumplimiento con la normativa.

show abstract

Compatibility between gypsum and polyamide powder waste to produce lightweight plaster with enhanced thermal properties

Cited by 66 publications

References 19 publications

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

Influence of proportion and particle size gradation of rubber from end-of-life tires on mechanical, thermal and acoustic properties of plaster–rubber mortars

An experimental study to evaluate the effects of adding glazed hollow beads on the mechanical properties and thermal conductivity of concrete

Characterization of gypsum plasterboard with polyurethane foam waste reinforced with polypropylene fibers

Contact Info

Product

Resources

About