Effect of crumb rubber gradation on a rubberized cold recycled mixture for road pavements

Pettinari, Matteo; Simone, Andrea

doi:10.1016/j.matdes.2015.06.139

Cited by 43 publications

(12 citation statements)

References 12 publications

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“…Test. Pettinaria et al [47] and Guo et al [9] indicated that the stiffness of asphalt mixture was always considered as a synthetic indicator of structural properties. Therefore, indirect tensile stiffness modulus (ITSM) test was used to investigate the stiffness modulus of FRAC at 5 ∘ C according to the Standard EN 12697-26 [48].…”

Section: Indirect Tensile Stiffness Modulus (Itsm)mentioning

confidence: 99%

Investigation on Reinforced Mechanism of Fiber Reinforced Asphalt Concrete Based on Micromechanical Modeling

Gao

Guo

et al. 2017

Advances in Materials Science and Engineering

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Short fibers have been widely used to prepare the fiber reinforced asphalt concrete (FRAC). However, internal interactions between fiber and other phases of asphalt concrete are unclear although experimental methods have been used to design the FRAC successfully. In this paper, numerical method was used to investigate the reinforced mechanism of FRAC from microperspective. 2D micromechanical model of FRAC was established based on Monte Carlo theory. Effects of fiber length and content on stress state of asphalt mortar, effective modulus, and viscoelastic deformation of asphalt concrete were investigated. Indirect tensile stiffness modulus (ITSM) test and uniaxial creep test were carried out to verify the numerical results. Results show that maximum stress of asphalt mortar is lower compared to the control concrete when the fiber length is longer than 12 mm. Fiber reduces the stress level of asphalt mortar significantly. Fiber length has no significant influence on the effective modulus of asphalt concrete. Fiber length and content both have notable impacts on the viscoelastic performance of FRAC. Fiber length should be given more attention in the future design of FRAC except the content.

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Section: Indirect Tensile Stiffness Modulus (Itsm)mentioning

confidence: 99%

Investigation on Reinforced Mechanism of Fiber Reinforced Asphalt Concrete Based on Micromechanical Modeling

Gao

Guo

et al. 2017

Advances in Materials Science and Engineering

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“…Pettinari and Simone [7] studied the effect of use crumb rubber (CR) in cold mixtures by maximizing the valorization of recycled materials. Two levels of gradation of CR were implemented in the making the cold-recycled asphalt-cement mixture.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of Olive Husk Ash on the Properties of Asphalt Concrete Mixture

Qadi¹,

Khedaywi²,

Haddad³

et al. 2021

ACSM

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Technology in transportation used available resources to make it safe, fast, suitable, easy, economic, and environmental to transport people and goods. Olive Husk became an environmental problem as waste materials especially in the Middle East where huge quantities are found. The objective of this research is to investigate the effect of addition of Olive Husk Ash (OHA) on the properties of asphalt concrete mixtures. Marshall Test was used to perform the asphalt concrete mixture by the addition of OHA to the binder of asphalt; different percentages of OHA (0, 5, 10, 15, and 20%) by volume were added to the binder. Five percent of asphalt cements (5, 5.5, 6, 6.5 and 7%) by weight and limestone aggregate were used for preparing asphalt mixture specimens to find the optimum content of asphalt that could be used in the binder. Tests on flow, stability, air void percentage and void in mineral aggregate, retained stability, stiffness, and retained stiffness were made. The principle results on OHA as filler in Asphalt binder improves the Marshall Stability, and void in mineral aggregate and decrease in flow, retained stability, stiffness, and retained stiffness with a 10%-15% of olive husk ash replacement of asphalt binder. The contribution that OHA could be used as a pavement construction material in field.

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“…Researches on existing recycling material was to valorise the utilization of recycled materials in road constructions and improve the longterm performance of asphalt pavement. [11]. any successful applications of recycled materials in road construction works oriented towards the efforts of achieving a sustainable pavement construction.…”

Section: Introductionmentioning

confidence: 99%

Mining Operations in Construction of Main Transport Routes

2020

Mining Industry

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Research objective: analysis of waste disposal issues in the mining and mineral processing industry of the Russian Federation. Research methodology: economic and environmental challenges concerned with mining and mineral processing waste in dumps and tailings were analysed. Results: an option is proposed to dispose of the waste rock generated by the mining and processing industry by using it for construction of railways and motor roads. This technology makes it possible to avoid construction of quarries and temporary settlements for their development along the road route, which will decrease the environmental impact and significantly reduce the time and cost of road construction. Conclusions: The proposed technology helps to achieve a significant economic effect (no costs for transporting materials from remote areas of the country), reduce the adverse environmental impact of mining operations and, in the long term, prevent dump formation.

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Effect of crumb rubber gradation on a rubberized cold recycled mixture for road pavements

Cited by 43 publications

References 12 publications

Investigation on Reinforced Mechanism of Fiber Reinforced Asphalt Concrete Based on Micromechanical Modeling

Investigation on Reinforced Mechanism of Fiber Reinforced Asphalt Concrete Based on Micromechanical Modeling

Investigating the Effect of Olive Husk Ash on the Properties of Asphalt Concrete Mixture

Mining Operations in Construction of Main Transport Routes

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