Effect of Thermoplastic Aggregates Incorporation on Physical, Mechanical and Transfer Behaviour of Cementitious Materials

Hannawi, Kinda; Prince, William; Kamali-Bernard, Siham

doi:10.1007/s12649-010-9021-y

Cited by 41 publications

(19 citation statements)

References 14 publications

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“…The plastic aggregates tend to slow the propagation of heat, which in turn decreases the global conductivity of the composite. These results are in agreement with those of Gouasmi et al [40] and Hannawi et al [71].…”

Section: Differential Scanning Calorimetry(dsc) Analysissupporting

confidence: 94%

“…The dynamic modulus of elasticity can also be related to the flexural strength using the proposed polynomial equation plotted in Figure 12. These results are in good agreement with those obtained by Marzouk et al [41], Malešev et al [48], Hannawi et al [71,73], Frigione [74], Saikia et al [75] and Rahmani et al [76]. Furthermore, this reduction in material strength can be considered to be potentially interesting for certain applications such as pavements, where the reduction of the elastic modulus may be considered as beneficial.…”

Section: Dynamic Modulus Of Elasticity (E D )supporting

confidence: 89%

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Plastic Waste Particles in Mortar Composites: Sulfate Resistance and Thermal Coefficients

Benosman

Taïbi

Senhadji

et al. 2017

Progress in Rubber, Plastics and Recycling Technology

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Plastic industry produces large amounts of waste polyethylene terephthalate (WPET), what causes environmental problems. An investigation was carried out on the effect of sulfate attack on the durability of composites produced with WPET. An attempt was also made to determine the thermal coefficients as well as the dynamic elastic moduli. Experiments were accomplished on limestone sand and cement mortars where the blended Portland cement was partially replaced by various volume fractions of WPET particles. The test solutions used to supply the sulfate ions and cations were 5% sodium sulfate solution and 5% magnesium sulfate solution. Tap water was used as the reference solution. Mass changes, compressive and flexion strengths measured on specimens were used to assess the changes in the mechanical properties of composites exposed to sulfate attack at different times. X-ray diffraction, FT-IR spectroscopy, scanning electron microscope (SEM/EDS) and differential scanning calorimetry were used to evaluate the microstructural nature of the sulfate attack. The test results showed that the presence of WPET had a beneficial effect in the control of the strength loss due to sodium and magnesium sulfate attacks and gave better insulation properties. This study insures that reusing TWPET particles as cement substitutes in mortar gives a good approach to sulfate durability, insulation, mechanical properties and solves some of the solid waste problems posed by plastics. Therefore, WPET-mortar composites are often presented as the materials of the future because of their potential for innovation and the advantages they offer. In fact, using WPETs as cement substitutes reduces the energy consumption. These composites address problems related to environmental pollution by CO2 emissions, and are used to repair various reinforced concrete structures.

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Section: Differential Scanning Calorimetry(dsc) Analysissupporting

confidence: 94%

Section: Dynamic Modulus Of Elasticity (E D )supporting

confidence: 89%

Plastic Waste Particles in Mortar Composites: Sulfate Resistance and Thermal Coefficients

Benosman

Taïbi

Senhadji

et al. 2017

Progress in Rubber, Plastics and Recycling Technology

View full text Add to dashboard Cite

show abstract

“…Which is certainly due to the lower thermal conductivity coefficient of the SCG aggregate (0.3 W/m K) than natural dune sand (1.4 W/m K) [14]. On the other hand, the decreasing in thermal properties came also from the increase in porosity induced by the SCG.…”

Section: Cmss-2017mentioning

confidence: 97%

Properties of dune sand concrete containing coffee waste

Guermazi

Boukhelkhal

2018

MATEC Web Conf.

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Abstract. In the last years, an increase of coffee beverages consumption has been observed all over the world; and its consumption increases the waste coffee grounds which will become an environmental problems. Recycling of this waste to produce new materials like sand concrete appears as one of the best solutions for reduces the problem of pollution. This work aims to study the possibility of recycling waste coffee grounds (Spent Coffee Grounds (SCG)) as a fine aggregate by replacing the sand in the manufacturing of dune sand concrete. For this; sand concrete mixes were prepared with substitution of sand with the spent coffee grounds waste at different percentage (0%, 5%, 10%, 15% and 20% by volume of the sand) in order to study the influence of this wastes on physical (Workability, bulk density and porosity), mechanical (compressive and flexural strength) and Thermal (Thermal conductivity and thermal diffusivity) properties of dune sand concrete. The results showed that the use of spent coffee grounds waste as partial replacement of natural sand contributes to reduce workability, bulk density and mechanical strength of sand concrete mixes with an increase on its porosity. However, the thermal characteristics are improved and especially for a level of 15% and 20% of substitution. So, it is possible to obtain an insulating material which can be used in the various types of structural components. This study ensures that reusing of waste coffee grounds in dune sand concrete gives a positive approach to reduce the cost of materials and solve some environmental problems.

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“…spent coffee grounds increase. Which is certainly due to the lower thermal conductivity coefficient of the SCG aggregate (0.3 W/m K) than natural dune sand (1.4 W/m K) [14]. On the other hand, the decreasing in thermal properties came also from the increase in porosity induced by the SCG.…”

Section: Cmss-2017mentioning

confidence: 97%

Properties of dune sand concrete containing coffee waste

Guermazi

Boukhelkhal

2018

MATEC Web Conf.

View full text Add to dashboard Cite

In the last years, an increase of coffee beverages consumption has been observed all over the world; and its consumption increases the waste coffee grounds which will become an environmental problems. Recycling of this waste to produce new materials like sand concrete appears as one of the best solutions for reduces the problem of pollution. This work aims to study the possibility of recycling waste coffee grounds (Spent Coffee Grounds (SCG)) as a fine aggregate by replacing the sand in the manufacturing of dune sand concrete. For this; sand concrete mixes were prepared with substitution of sand with the spent coffee grounds waste at different percentage (0%, 5%, 10%, 15% and 20% by volume of the sand) in order to study the influence of this wastes on physical (Workability, bulk density and porosity), mechanical (compressive and flexural strength) and Thermal (Thermal conductivity and thermal diffusivity) properties of dune sand concrete. The results showed that the use of spent coffee grounds waste as partial replacement of natural sand contributes to reduce workability, bulk density and mechanical strength of sand concrete mixes with an increase on its porosity. However, the thermal characteristics are improved and especially for a level of 15% and 20% of substitution. So, it is possible to obtain an insulating material which can be used in the various types of structural components. This study ensures that reusing of waste coffee grounds in dune sand concrete gives a positive approach to reduce the cost of materials and solve some environmental problems.

show abstract

Effect of Thermoplastic Aggregates Incorporation on Physical, Mechanical and Transfer Behaviour of Cementitious Materials

Abstract: International audienc

Cited by 41 publications

References 14 publications

Plastic Waste Particles in Mortar Composites: Sulfate Resistance and Thermal Coefficients

Plastic Waste Particles in Mortar Composites: Sulfate Resistance and Thermal Coefficients

Properties of dune sand concrete containing coffee waste

Properties of dune sand concrete containing coffee waste

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