Effect of elevated temperatures on physical and mechanical properties of recycled rubber mortar

Guelmine, Layachi; Hadjab, Hadda; Benazzouk, Amar

doi:10.1016/j.conbuildmat.2016.09.018

Cited by 53 publications

(47 citation statements)

References 23 publications

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“…At 300°C rubber aggregates consistency changed, then inflamed and became oily. Several authors have indicated that the decomposition of rubber aggregates starts rapidly at a temperature of 300°C [34][35][36]. The same result was demonstrated by thermo gravimetric analysis in the study of Gupta et al [3].…”

Section: Elevated Temperaturementioning

confidence: 57%

See 1 more Smart Citation

Durability Properties of Five Years Aged Lightweight Concretes Containing Rubber Aggregates

Medine¹,

Trouzine²,

Aguiar

et al. 2017

Period. Polytech. Civil Eng.

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Scrap tyres are one of the most important wastes. They can be used in different ways because of their availability and their non-degradable nature. This paper aims to demonstrate their reuse through durability properties experimental assessment of lightweight concretes aged five years, incorporating rubber aggregates as partial replacement of 5%, 7.5% and 10% of coarse/fine and coarse aggregates. The effect of the rubber aggregates on the lightweight concretes durability has been analysed. Firstly, the water absorption was evaluated, and then the mass losses were measured through many tests: freeze-thaw, elevated temperature and attack by Na2SO4 and HCl solutions. Wetting-drying cycles were carried out in order to accelerate the aging of the studied lightweight concretes and to reduce the tests duration. It has been observed that the water absorption decreased with small rubber content. The mass losses of the mixes were almost depending on rubber aggregates content and size, and the exposures duration.

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Section: Elevated Temperaturementioning

confidence: 57%

“…Thus, the differential expansion of different constituents of the studied specimens may explain this. Guelmine et al [36] studied the performance of recycled crumb rubber mortar exposed to elevated temperature. They indicated that a temperature of 400°C has a strong effect on this mortar.…”

Section: Elevated Temperaturementioning

confidence: 99%

Durability Properties of Five Years Aged Lightweight Concretes Containing Rubber Aggregates

Medine¹,

Trouzine²,

Aguiar

et al. 2017

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

show abstract

“…Numerous studies concern the use of waste rubber in cement concrete [7,[10][11][12][15][16][17][18][19]. The addition of waste rubber usually significantly reduced the strength parameters of these composites [11,17,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…Rubberized concrete shows high resistance to cyclic freeze-thawing, acid attack and chloride ion penetration [16]. The authors of publications [17,18] also examined the behavior of mortars containing waste rubber at elevated temperatures, in the order of 150-400 • C. This approach is important due to the possibility of the release of harmful substances during a fire. It was found that at 3-10% waste rubber content there is no risk of the modifier burning.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Applicability of Sustainable Epoxy Composites Containing Waste Rubber Aggregates in Buildings

2019

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The dynamic development of the automotive industry and improvements in quality of life have caused a significant increase in the production of car tires. Unfortunately, when the useful life of these products comes to an end, the problem of their disposal arises. The article presents the results of tests of epoxy mortars in which granules made from waste tires were used as a substitute for sand in the amount of 0, 20, 40, 60, 80 and 100% vol. respectively. The available literature lacks information about resin composites that arise with such a large or complete replacement of sand with rubber waste. Along with the increase in the content of waste, the values of strength parameters of composites decreased; however, a material characterized by very low water absorption, that is lightweight and with a low thermal conduction coefficient was obtained. Using the ADINA program, numerical simulations were carried out regarding the temperature distribution in a part of the building structure containing modified rubber mortar. The results of the simulation confirmed the possibility of practical use of the obtained composite due to its good thermal insulation properties. This approach to testing composites modified with rubber waste is innovative.

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“…Sobre o uso de resíduos de pneus, cita-se alguns trabalhos que estudaram sua utilização em concretos, como os trabalhos de GUNEYISI et al [9], MARTINS et al [10] e CARNEIRO et al [11]. Sobre o uso de resíduo de borracha de pneu em argamassas cita-se os trabalhos de MENEGUINI [7], TURATSINZE et al [12], MARQUES et al [13], PEDRO et al [14], SALES E MENDES [6] e GUELMI-NEA et al [15].…”

Section: Introductionunclassified

A potencialidade do uso de resíduo de borracha de pneu em argamassa: análise das propriedades físicas e mecânicas

et al. 2018

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RESUMO O setor da construção civil vem absorvendo resíduos de vários segmentos industriais e transformando-os em componentes para utilização nas construções, através da sua incorporação em materiais, como por exemplo em argamassas e concretos. Devido a este fato, o presente estudo tem o objetivo de avaliar o comportamento de argamassas com diferentes substituições de agregado miúdo por resíduo de borracha, conferindo seu comportamento físico e mecânico. Com a finalidade de verificar a melhor relação de substituição, os ensaios foram realizados em argamassa referência e em argamassas com resíduos nas proporções de 2,5%, 5%, 10% e 15% de substituição de areia por borracha, possuindo, portanto quatro famílias de argamassas com resíduos de borracha, sendo o traço referência o 1:3 (cimento:agregado). Para confecção das argamassas, os agregados, areia e borracha, foram divididos em quatro frações granulométricas, gerando quatro subfamílias de argamassas para cada família de argamassa com resíduos. Para caracterização das argamassas foram realizados ensaios de índice de consistência, de compressão axial, de resistência à tração por compressão diametral, de absorção por capilaridade e de absorção por imersão. Com base nestes ensaios foram escolhidos dois traços de argamassa para revestirem dois protótipos de alvenaria, visando verificar o comportamento do revestimento. Os protótipos foram analisados visualmente em relação ao surgimento de manifestações patológicas e foram ensaiados quanto a absorção de água por meio do método cachimbo. Os resultados indicam que nas argamassas com resíduo ocorreu um decréscimo nas resistências. Nas absorções algumas subfamílias possuíram melhor desempenho que a argamassa referência. Para os protótipos a utilização de borracha não influenciou o comportamento do revestimento argamassado e a permeabilidade pelo método cachimbo se mostrou sem diferenças significativas quanto aos resultados obtidos.

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Effect of elevated temperatures on physical and mechanical properties of recycled rubber mortar

Cited by 53 publications

References 23 publications

Durability Properties of Five Years Aged Lightweight Concretes Containing Rubber Aggregates

Durability Properties of Five Years Aged Lightweight Concretes Containing Rubber Aggregates

Assessment of the Applicability of Sustainable Epoxy Composites Containing Waste Rubber Aggregates in Buildings

A potencialidade do uso de resíduo de borracha de pneu em argamassa: análise das propriedades físicas e mecânicas

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