Influence of content and particle size of waste pet bottles on concrete behavior at different w/c ratios

Albano, Carmen; Camacho, Nélson; Hernández, Marianella; Matheus, Andrea; Gutiérrez, A.

doi:10.1016/j.wasman.2009.05.007

Cited by 403 publications

(242 citation statements)

References 22 publications

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“…Moreover, the modulus gradually decreases since PET waste is less resistant than natural sand and deforms less when an equivalent stress is applied [42].…”

Section: Abrasion Resistancementioning

confidence: 99%

Assessment of Mechanical and Durability Properties of Concrete Containing PET Waste

et al. 2018

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Plastic waste is a silent threat to the environment, and their disposal is a serious issue. To sort out this issue, many efforts were made to reuse the plastic waste, but no significant results were achieved. On the contrary, concrete being the widely used construction material is facing problem due to unavailability of ingredient material (sand and coarse aggregate). In this study PET (polyethylene terephthalate) aggregates manufactured from the waste un-washed PET bottles in shredded form were used to partially replace fine aggregate and coarse aggregate in concrete in various percentages (0%, 5%, 10%, 15% and 20%). Various tests like workability, compressive strength, flexural strength, water permeability, abrasion resistance, dynamic and static modulus of elasticity were performed. The micro-structural analysis of the specimens was carried out using an optical microscope. It was found that the workability, compressive strength, flexural strength, dynamic and static modulus of elasticity decreased with the increasing amount of PET waste in concrete. Water permeability of concrete was found to increase with increasing amount of PET waste. In both the cases, i.e., when fine and coarse aggregates were replaced with PET waste, an improvement in the abrasion resistance of concrete was found.

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“…Moreover, the modulus gradually decreases since PET waste is less resistant than natural sand and deforms less when an equivalent stress is applied [42].…”

Section: Abrasion Resistancementioning

confidence: 99%

Assessment of Mechanical and Durability Properties of Concrete Containing PET Waste

et al. 2018

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“…For example, the increase in UPV for concrete (60% SPS + 0% FA) between the ages of one and seven days (about one week) water curing was of 25% and between the ages of 28 and 360 days (about 48 weeks) curing, the increase was only 10%. An investigation [40] conducted on the engineering properties of concrete reported that, as a consequence of the cement-water hydration process over curing time, the physical and chemical changes will occur in the concrete and will increase the strength and density and, as a result, will increase the UPV values of concrete.…”

Section: Effect Of Spsmentioning

confidence: 99%

Combined Effects of Densified Polystyrene and Unprocessed Fly Ash on Concrete Engineering Properties

Herki

2017

Buildings

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Abstract:The present study evaluated the combined effects of two types of waste materials of expanded polystyrene (EPS) and unprocessed fly ash (FA) on different properties of concrete. A novel recycling technique of densifying waste EPS is used to produce a novel lightweight aggregate (LWA). This new technique has solved the problem of segregation in concrete by coating EPS particles with a natural binder of clay and cement. Nine different concrete mixtures with a water to cement ratio of 0.8 were used. The densified EPS and unprocessed FA were partially replaced with natural aggregate and Portland cement, respectively. The engineering properties, including workability, density, compressive strength, ultrasonic pulse velocity (UPV), and water absorption (WA) were investigated at different curing times. According to the experimental results, there is a decrease in compressive strength and UPV with increasing this novel LWA content in concrete. However, by using a suitable mix design, the utilisation of these two waste materials in concrete using an appropriate recycling technique is possible.

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“…This result seems to indicate that the increase of PET inclusions damages the packing of the particles, with an increase of porosity of the composites. The irregular shape of the PET particles due to the milling process might have also provided a significant contribution (Albano et al, 2009). Table 4 shows that the total replacement of quartz by using PET particles is able to increase the porosity in a significant manner, by 97% and 302% when using 0.45 and 0.55 of w/c ratio respectively.…”

Section: Apparent Porositymentioning

confidence: 99%

“…Modro et al have investigated the effect on the mechanical strength of Portland cement concrete when adding PET waste, observing a reduction in strength for increasing volume fraction of PET aggregates (Modro et al 2009). Albano et al have investigated the effect of adding PET bottle waste (10 and 20%), its particle size (0.26 to 1.14 cm) and water/cement ratio (0.50 and 0.60) on the mechanical properties of concrete (Albano et al, 2009). The results from that work clearly show that when PET aggregates are used in increasing volume and sizes, the compressive strength and modulus of the concrete decreases and -at the same time -the water absorption increases significantly.…”

Section: Introductionmentioning

confidence: 99%

Replacement of Quartz in Cementitious Composites Using PET Particles: A Statistical Analysis of the Physical and Mechanical Properties

Detomi

Filho

Panzera

et al. 2016

J. Mater. Civ. Eng.

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This work investigates the mechanical behaviour of cementitious composites (mortar) when quartz inclusions are totally or partially replaced with polyethylene terephthalate (PET) particles. A full factorial design is performed to identify the effect of the water/cement ratio and the range of quartz particles size used in the replacement on the different mechanical and physical parameters (bulk density, apparent porosity, water absorption, oxygen permeability, compressive strength and modulus of elasticity). The results show a general reduction of the mechanical properties when the replacement with quartz particles is put in place. The composites made by replacing the coarse quartz particles showed acceptable mechanical properties for non-structural civil engineering applications, with a significant amount of PET recycling to be used as aggregates for some specific end-user cases.

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Influence of content and particle size of waste pet bottles on concrete behavior at different w/c ratios

Cited by 403 publications

References 22 publications

Assessment of Mechanical and Durability Properties of Concrete Containing PET Waste

Assessment of Mechanical and Durability Properties of Concrete Containing PET Waste

Combined Effects of Densified Polystyrene and Unprocessed Fly Ash on Concrete Engineering Properties

Replacement of Quartz in Cementitious Composites Using PET Particles: A Statistical Analysis of the Physical and Mechanical Properties

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