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Workability and Durability of Concrete Incorporating Waste Tire Rubber:A Review
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作者 Peng Zhang Xixi Wang +1 位作者 Juan Wang Tianhang Zhang 《Journal of Renewable Materials》 SCIE EI 2023年第2期745-776,共32页
Environmental problems caused by waste tires are becoming increasingly prominent.There is an urgent need to find a green way to dispose of waste tires,and scholars have made considerable efforts in this regard.In the ... Environmental problems caused by waste tires are becoming increasingly prominent.There is an urgent need to find a green way to dispose of waste tires,and scholars have made considerable efforts in this regard.In the construction industry,rubber extracted from waste tires can be added to concrete to alleviate environmental problems to a certain extent.As a new building material,rubber concrete has superior properties compared to ordinary concrete and has been widely used in many fields.Numerous studies have been conducted worldwide to investigate the effect of waste tire rubber on the performance of concrete.It has been reported that the addition of waste tire rubber has a significant influence on the performance of concrete.Workability influences the hardened performance of rubber concrete,especially the durability.Based on the current research results,the workability and durability of concrete manufactured with waste tire rubber,including water absorption and permeability,carbonation resistance,chloride ion permeability resistance,and freeze-thaw resistance,are summarized in this paper.It is concluded that the addition of waste tires has a negative effect on the workability of concrete.In terms of durability,concrete exhibits better chloride ion penetration resistance and frost resistance,with a higher water absorption rate,and lower anti-permeability and carbonation resistance owing to the addition of waste tire rubber. 展开更多
关键词 rubber concrete waste tire rubber WORKABILITY DURABILITY
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Determination of the Sound Absorption Capacity of Hydraulic Concrete Mixtures Added with Waste Tire Rubber
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作者 María Luisa Moguel Pacheco Fermín Castillo Mejía +3 位作者 Yamilet Rodríguez Lazcano Andrés Aguilar Negrete Arturo Molina Ocampo Jesús Mario Colín de la Cruz 《Journal of Minerals and Materials Characterization and Engineering》 2023年第5期197-211,共15页
There are different types of pollutants that are harmful to the environment, including smog, chemicals that are dumped into rivers, scrap tires, etc. The latter have the particularity that it is not possible to recycl... There are different types of pollutants that are harmful to the environment, including smog, chemicals that are dumped into rivers, scrap tires, etc. The latter have the particularity that it is not possible to recycle them to manufacture new tires. In the present work, hydraulic concrete plates added with waste tire rubber were manufactured to modify their sound absorption capacity. It was found that the rubber additions produce changes in the density of the material and in the sound absorption capacity. When the material is exposed to high-frequency sounds that correspond to high-pitched sounds, its absorption capacity increases. On the contrary, when the test frequency is low, that is, bass sounds, the sound absorption capacity decreases. The results obtained in this work suggest that the proposed mixtures are suitable for the possible manufacture of acoustic insulating shields. 展开更多
关键词 Hydraulic Concrete waste Tire rubber Sound Absorption Noise Reduction Coefficient
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Effect of Rubber Particle Modifi cation on Properties of Rubberized Concrete 被引量:6
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作者 张海波 GOU Mifeng +1 位作者 LIU Xiaoxing 管学茂 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2014年第4期763-768,共6页
To improve the combination of cement matrix and waste tire rubber particles in concrete, the rubber particles were treated with acrylic acid(ACA) and polyethylene glycol(PEG) for grafting hydrophilic groups on the... To improve the combination of cement matrix and waste tire rubber particles in concrete, the rubber particles were treated with acrylic acid(ACA) and polyethylene glycol(PEG) for grafting hydrophilic groups on their surfaces. The X-Ray photoelectron spectroscopy(XPS) and surface contact angle were used to characterize the hydrophilicity and surface functional group of rubber particles. The effect of rubber particle modifi cation on fresh/hardened properties of rubberized concrete was studied. The experimental results show that the contact angle between rubber particle surface and water decreases when rubber particle is modifi ed. Compared with the unmodifi ed rubberized concrete(RC), the unit weight of modifi ed rubberized concrete(MRC) changes slightly. However, the slump, air-entrainment, compressive strength, flexural strength, and impact performance of MRC are obviously improved. Under good condition of slump, the water-cement ratio of the MRC can be reduced from 0.4 to 0.38. And the compressive strength and fl exural strength of the MRC(10% rubber particle content) can be increased by 25.9% and 26.4%, respectively. 展开更多
关键词 waste tire XPS contact angle rubberized concrete impact resistance
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Waste Tire Rubber-based Refrigerants for Solid-state Cooling Devices 被引量:1
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作者 Nicolau Molina Born Erik Oda Usuda +4 位作者 Mariana da Silva Gigliotti Denílson JoséMarcolino de Aguiar William Imamura Lucas Soares Paixao Alexandre Magnus Gomes Carvalho 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2020年第7期769-775,I0007,共8页
Management of discarded tires is a compelling environmental issue worldwide.Although there are several approaches developed to recycle waste tire rubbers,their application in solid-state cooling is still unexplored.Co... Management of discarded tires is a compelling environmental issue worldwide.Although there are several approaches developed to recycle waste tire rubbers,their application in solid-state cooling is still unexplored.Considering the high barocaloric potential verified for elastomers,the use of waste tire rubber(WTR)as a refrigerant in solid-state cooling devices is very promising.Herein,we investigated the barocaloric effects in WTR and polymer blends made of vulcanized natural rubber(VNR)and WTR,to evaluate its feasibility for solid-state cooling technologies.The adiabatic temperature changes and the isothermal entropy changes reach giant values,as well as the performance parameters,being comparable or even better than most barocaloric materials in literature.Moreover,pure WTR and WTR-based samples also present a faster thermal exchange than VNR,consisting of an additional advantage of using these discarded materials.Thus,the present findings evidence the encouraging perspectives of employing waste rubbers in solid-state cooling based on barocaloric effects,contributing to both the recycling of polymers and the sustainable energy technology field. 展开更多
关键词 waste tire rubber Solid-state cooling Barocaloric effect Tire recycling Sustainable energy
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Review on laboratory preparation processes of polymer modified asphalt binder 被引量:7
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作者 M.A.Dalhat Khaleel Al-Adham 《Journal of Traffic and Transportation Engineering(English Edition)》 EI CSCD 2023年第2期159-184,共26页
Several previous studies have documented the progress in polymer modified asphalt binder with respect to materials'types and properties.However,limited or no effort was made to document findings on the laboratory ... Several previous studies have documented the progress in polymer modified asphalt binder with respect to materials'types and properties.However,limited or no effort was made to document findings on the laboratory preparation practices of polymer modified asphalt binder.Full and clear disclosure of asphalt blend preparation method is necessary for research continuity,reproducibility,and accurate adaptation by future studies for analogy and reliable conclusions.The laboratory preparation processes of various modified asphalt binders have been reviewed in this study.Factors affecting the optimal mixing of asphalt-polymer blends were summarized.The optimal mixing conditions associated with different asphalt modifiers were documented.Gap in the literature on the current practice for the preparation and reporting of various modified asphalt binder was discussed.Modifiers include styrene butadiene styrene(SBS),polyethylene(PE),waste tire rubber or crumb rubber(CR),ethylene vinyl acetate(EVA),sulfur,polyphosphoric acid(PPA),epoxy,polyurethane,nano-materials,etc.Currently,there is lack of modern innovative approached in the preparation of modified asphalt towards better performance.There is no clear standardized definition of term associated with asphalt binder preparation process.Given the limited and common types of polymers utilized for the modification of asphalt binder,it is possible to standardize the mixing procedure for several polymers.Doing so could ease research continuity and facilitates accurate comparison of new studies with earlier ones. 展开更多
关键词 Pavement engineering Polymer modified asphalt SBS PE waste tire rubber
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