Evaluation of properties and performance of rubber-modified concrete for recycling of waste scrap tire

Guo, Shuaicheng; Dai, Qingli; Si, Ruizhe; Sun, Xiao; Lü, Chao

doi:10.1016/j.jclepro.2017.02.046

Cited by 287 publications

(94 citation statements)

References 43 publications

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“…The mechanical properties of rubberised concrete have therefore been investigated in many previous studies, with particular focus on the compressive strength properties [e.g. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. In order to use such modified concrete materials in structural applications there is, however, a need for a reliable characterisation of the bond interaction with the embedded reinforcement bars.…”

Section: Introductionmentioning

confidence: 99%

Bond-slip response of deformed bars in rubberised concrete

Bompa

Elghazouli

2017

Construction and Building Materials

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This paper is concerned with examining the complete bond-slip behaviour between deformed reinforcement bars and concrete incorporating rubber particles from recycled tyres as partial replacement for mineral aggregates. An experimental study consisting of fifty-four pull-out tests on cylindrical rubberised and normal concrete specimens, in conjunction with two reinforcement sizes with short embedment lengths, is described. In addition to a detailed assessment of the full bondslip relationship, the test results offer a direct interpretation of bond behaviour under practical levels of confinement and its influence on the failure modes. Particular emphasis is given to the characteristic bond behaviour of rubberised concrete in terms of maximum bond strength and splitting strength as well bond stiffness and slip parameters. The detailed test measurements and observations provided in this study enable the definition of key bond parameters depicting the interfacial behaviour between rubberised concrete and deformed bars. The findings also permit the development of modified approaches for reliable representation of the failure modes and bond capacities for the concrete materials considered in this investigation.

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Section: Introductionmentioning

confidence: 99%

Bond-slip response of deformed bars in rubberised concrete

Bompa

Elghazouli

2017

Construction and Building Materials

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“…A new approach of recycling the leather waste for its use as a filler in natural rubber foams has been explored by Garcia et al . Utilization of the waste tire rubber in concrete is also reported in the literature . It was observed that the rubberized concrete is highly resistant toward aggressive environments and can be implemented in the areas prone of acid attack.…”

Section: Recycling Of Rubbermentioning

confidence: 89%

Sustainable rubbers and rubber additives

Sarkar

Bhowmick

2017

J of Applied Polymer Sci

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Rubber is one of the most versatile materials having myriad of applications-from niche rubber band and eraser to highly engineered spacecraft seal. Of late, the glittering concept of "sustainability" has been able to infiltrate within the domain of elastomer science and technology to a significant extent -in both academia and industry. This fervent context thus necessitates a systematic documentation of brief history, present research scenario and future perspective of sustainable developments in this field. The present review aims to portray a panoramic sketch of various sustainable rubbers and functional rubber additives in this field and intends to provide a direction to their plausible future developments.

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“…One way to overcome the rubber waste issue is by mixing it with other materials for different applications, for example, oil well cement . However, due to the hydrophobicity of the rubber surface, its interface bonding force is weak . A decrease in the hydrophobicity of the rubber surface by the presence of short chain length oligo( cis ‐1,4‐isoprene) containing terminal carbonyl groups could improve the material properties.…”

Section: Discussionmentioning

confidence: 99%

In vitro studies on the degradation of poly(cis‐1,4‐isoprene)

Andler

Altenhoff

Mäsing

et al. 2018

Biotechnology Progress

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Cleavage of the backbone of poly(cis-1,4-isoprene) (IR) in solid rubber material was accomplished by the addition of partially purified latex clearing protein (Lcp1 ) using a 200-mL enzyme reactor. Two strategies for the addition of Lcp1 were studied revealing that the daily addition of 50 µg mL of Lcp1 for 5 days was clearly a more efficient regime in comparison to a one-time addition of 250 µg of Lcp1 at the beginning. Soluble oligo(cis-1,4-isoprene) molecules occurred as degradation products and were identified by ESI-MS and GPC. Oxygenase activity of Lcp1 with solid IR particles as substrate was shown for the first time by measuring the oxygen consumption in the reaction medium. A strong decrease of the dissolved oxygen concentration was detected at the end of the assay, which indicates an increase in the number of cleavage reactions. The oligo(cis-1,4-isoprene) molecules comprised 1 to 11 isoprene units and exhibited an average molecular weight (M ) of 885 g mol . Isolation of the oligo(cis-1,4-isoprene) molecules was achieved by using silica gel column chromatography. The relative quantification of the isolated products was performed by HPLC-MS after derivatization with 2,4-dinitrophenilhydrazyne yielding a concentration of total degradation products of 1.62 g L . Analysis of the polymer surface in samples incubated for 3 days with Lcp1 via ATR-FTIR indicated the presence of carbonyl groups, which occurred upon the cleavage reaction. This study presents a cell-free bioprocess as an alternative rubber treatment that can be applied for the partial degradation of the polymer. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:890-899, 2018.

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Evaluation of properties and performance of rubber-modified concrete for recycling of waste scrap tire

Cited by 287 publications

References 43 publications

Bond-slip response of deformed bars in rubberised concrete

Bond-slip response of deformed bars in rubberised concrete

Sustainable rubbers and rubber additives

In vitro studies on the degradation of poly(cis‐1,4‐isoprene)

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