Use of plastic waste as aggregate in cement mortar and concrete preparation: A review

Saikia, Nabajyoti; Brito, Jorge de

doi:10.1016/j.conbuildmat.2012.02.066

Cited by 521 publications

(253 citation statements)

References 25 publications

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“…The modes of failures for unconfined and confined concrete compression member are cone, border, delamination, de-bonding and FRP rupture [10,11]. Cone and border failures were observed for the unconfined specimens as shown in Fig.3 (a,b) and de-bonding and delamination failures for confined specimens shown in Fig.3 (c,d).…”

Section: Resultsmentioning

confidence: 80%

Evaluation of FRP Concrete Compression Member Under Repeated Load and Harsh Environment

Kashwani¹

2015

geomate

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Strengthening and rehabilitation have been increasingly applied in many structures to improve their capacity and serviceability. Fiber Reinforced Polymer (FRP) materials are universally known for their ability to improve the load capacity of damaged structural elements because of their high linear-elastic behavior. However, enhancing the capacity of structural elements that are exposed to repeated load coupled with harsh environment is an area that requires further investigation. This research focused on experimental analysis of the behavior and response of confined and unconfined concrete compression members (300mm x 150mm) under repeated load while exposed to 1440 cycles of seawater splash zone in United Arab Emirates (UAE). Confining concrete compression members with Carbon Fiber Reinforced Polymer (CFRP) and Glass Fiber Reinforced Polymer (GFRP) sheets have increased the load capacity compared to the control sample at room temperature by 110% and 84%, respectively. Results showed that the average value of compressive strength for the confined concrete exposed to sea water splash zone conditions for CFRP and GFRP specimens has decreased by 33% and 23%, respectively, compared to the confined concrete in the room temperature. However, GFRP specimens showed higher performance in compressive strength under sea water splash zone than those of the CFRP specimens. Different mode of failures such as delamination, debonding and combination of such modes were observed and related to various exposure factors and mechanical properties.

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Section: Resultsmentioning

confidence: 80%

Evaluation of FRP Concrete Compression Member Under Repeated Load and Harsh Environment

Kashwani¹

2015

geomate

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“…Ainsi, l'une des méthodes logiques pour traiter les déchets plastiques de PET est de les recycler pour un usage industriel. Aujourd'hui, plusieurs projets de recherche s'intéressent sur la transformation des déchets de bouteilles de PET pour l'usage de la construction [14,15].…”

Section: Introductionunclassified

The evolution of shrinkage strain of pet-mortar composite eco-materials

Chaib¹,

Benosman

Tani

et al. 2017

J. Fundam and Appl Sci.

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Concretes and mortars are subjected to several kinds of shrinkage strains which represent the volumic variations resulting from the cement hydration and are governed by various physical and chemical aspects. The use of polyethylene terephthalate PET plastic wastes which are available in quantity and within low cost in our country yields a very important economic and environmental impact in the construction industry. Thus, we are interested to investigate the effect of PET volumetric additive amounts for cement substituting and for the behavior of the total, drying and autogenous shrinkage. Comparison study of obtained experimental results with codale prediction models were performed according to Eurocode 2 (EC2) in order to analyze the evolution of shrinkage strain with PET-mortar composite ages and for several rates of PET waste additions. According to obtained results, PET additions acts to reduce shrinkage strains of PET-mortar composites which promote the use of these modified mortar Eco-materials in the field of construction industry. Keywords

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“…However, existing data indicate that the inclusion of plastic aggregate can reduce the permeability of the concrete, making it more durable against aggressive chemical attacks (Saikia and Brito, 2012). In the current study the permeability varied between 0.02x10 -16 m 2 to 0.18x10 -16 m².…”

Section: Permeabilitymentioning

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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Use of plastic waste as aggregate in cement mortar and concrete preparation: A review

Cited by 521 publications

References 25 publications

Evaluation of FRP Concrete Compression Member Under Repeated Load and Harsh Environment

Evaluation of FRP Concrete Compression Member Under Repeated Load and Harsh Environment

The evolution of shrinkage strain of pet-mortar composite eco-materials

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

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