Physico-mechanical and thermal properties of composite mortars containing lightweight aggregates of expanded polyvinyl chloride

Latroch, Noureddine; Benosman, Ahmed Soufiane; Bouhamou, N.; Senhadji, Y.; Mohamed, Mazlan

doi:10.1016/j.conbuildmat.2018.04.173

Cited by 45 publications

(13 citation statements)

References 43 publications

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“…Based on their tests the UPV loss at 50% sand replaced with PVC aggregate is 17%. Other tests by Latroch et al [11] showed that the interfacial transition zone (ITZ) between the EPVC aggregates and the cement paste is not as good as the one found between the matrix and the natural aggregates. The SEM analysis reveals a weaker adhesion between the cement matrix and the EPVC aggregates as compared to that detected between the cement matrix and natural aggregates.…”

Section: B Ultrasonic Pulse Velocitymentioning

confidence: 94%

“…It is worthy to compare the UPV variation of high strength concrete and that of normal strength concrete obtained by the other researchers. UPV loss for HSC is considerably low as compared with that of normal strength concrete containing PVC aggregate (Mohammad et al [2], Senhadji et al [10] and Latroch et al [11]). SEM analysis by Senhadji et al [10] showed that the quality of the interfacial transition zone between PVC aggregate and cement paste appears is quite poor compared to that between the cement-paste matrix and conventional aggregate.…”

Section: B Ultrasonic Pulse Velocitymentioning

confidence: 99%

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Ultrasonic Pulse Velocity and Morphology of High Strength Concrete with PVC Waste Aggregate

Mohammad*¹,

Mohammed*²

2020

IJRTE

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In this paper, morphology and ultrasonic pulse velocity (UPV) of high strength concrete with a relatively high ratio of condensed silica fume and PVC waste aggregate as sand replacement have been examined. The plastic aggregate was obtained from shredding PVC waste sheets used for secondary roofing and covering walls. Variables tested were PVC plastic grading and ratio of sand replacement with such plastic, in addition to curing time of concrete. Results of scanning electron microscopy showed that there is a good bond between PVC aggregate particles and hardened cement paste. There was a relatively small reduction of UPV value of concrete, increased with increasing PVC aggregate content, reached 14.3% at 40% PVC content. The UPV lost is slightly increased with increasing concrete age from 7 days to 56 days. Results also showed that the effect of PVC aggregate grading on the residual UPV is not important. Based on the measured residual properties of high strength with silica fume and PVC granules, there is a high degree of silica fume hydration and the existence of PVC particles has no effect on such hydration.

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Section: B Ultrasonic Pulse Velocitymentioning

confidence: 94%

Section: B Ultrasonic Pulse Velocitymentioning

confidence: 99%

Ultrasonic Pulse Velocity and Morphology of High Strength Concrete with PVC Waste Aggregate

Mohammad*¹,

Mohammed*²

2020

IJRTE

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“…The thermal conductivity of mortar-plastic compounds samples with different amounts of added recycled PVC is presented. It can be seen that the higher the plastic content in the mixture, the lower the density and the thermal conductivity [23].…”

Section: Thermal Testsmentioning

confidence: 99%

Energy Performance of Construction Materials Using Waste Recycled Polymer as Fine Aggregate Replacement

Cardinale¹,

Sposato²,

Alba³

et al. 2019

IJHT

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Plastic has become an essential part of our modern lifestyle and its global diffusion has led to a significant increase in the production of related waste, with obvious repercussions on the environment and on the entire sustainability chain. Recycling this kind of materials in the field of civil and industrial engineering is considered an ecological and economical solution due to the advantages it can offer. This paper represents the results of experimental investigations of mechanical strength, hygrothermal and durability properties of two kinds of products: urban tiles (90 % PVC powder and 10 % polyurethane resin) and cement-based mortars reinforced with PVC compound coming out of electric cable protective sheath. The manufactured mortars were obtained by the volumetric substitution of the sand with five different percentages of plastic waste, from 10 % to 50 %. Plastic aggregates reduce density, causing a decrease in flexural and compressive strength of mortars. Nevertheless, the presence of plastic aggregate leads to a significant improvement of thermal insulation and shows a greater resistance to capillary water absorption compared to the reference one. The mechanical tests after two different cycles of accelerated solar aging of urban tiles demonstrated the feasibility of its use for external flooring (green parking). These results foster future studies about the development of increasingly eco-sustainable building materials.

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“…Heating, ventilation, and air conditioning (HVAC) of buildings is one of the major contributors for these figures [6,7]. Besides modifications to thermal systems to reduce the energy consumption of heating and cooling in buildings, researchers are turning toward insulation materials that can be incorporated into construction materials [8][9][10]. To this end, researchers have used expanded polystyrene (EPS) waste in thermal insulation cement composites for its insulation properties and environmental-friendliness [11].…”

Section: Introductionmentioning

confidence: 99%

Structural Applications of Thermal Insulation Alkali Activated Materials with Reduced Graphene Oxide

Long¹,

Lin²,

Tan³

et al. 2020

Materials

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Development of low thermal conductivity and high strength building materials is an emerging strategy to solve the heavy energy consumption of buildings. This study develops sustainable alkali activated materials (AAMs) for structural members from waste expanded polystyrene (EPS) beads and reduced graphene oxide (rGO) to simultaneously meet the thermal insulation and mechanical requirements of building energy conservation. It was found that the thermal conductivity of AAMs with 80 vol.% EPS and 0.04 wt.% rGO (E8–G4) decreased by 74% compared to the AAMs without EPS and rGO (E0). The 28-day compressive and flexural strengths of E8–G4 increased by 29.8% and 26.5% with the addition of 80 vol.% EPS and 0.04 wt.% rGO, compared to the sample with 80 vol.% EPS without rGO (E8). In terms of compressive strength, thermal conductivity, and cost, the efficiency index of E8–G4 was higher than those of other materials. A building model made from AAMs was designed using building information modeling (BIM) tools to simulate energy consumption, and 31.78% of total energy consumption (including heating and cooling) was saved in the building operation period in Harbin City, China. Hence, AAMs made of waste EPS beads and rGO can realize the structural and functional integrated application in the future.

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Physico-mechanical and thermal properties of composite mortars containing lightweight aggregates of expanded polyvinyl chloride

Cited by 45 publications

References 43 publications

Ultrasonic Pulse Velocity and Morphology of High Strength Concrete with PVC Waste Aggregate

Ultrasonic Pulse Velocity and Morphology of High Strength Concrete with PVC Waste Aggregate

Energy Performance of Construction Materials Using Waste Recycled Polymer as Fine Aggregate Replacement

Structural Applications of Thermal Insulation Alkali Activated Materials with Reduced Graphene Oxide

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