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

Gao, Ying; Guo, Qinglin; Guo, Yanhua; Wu, Pingchuan; Meng, Wenqing; Jia, Tongye

doi:10.1155/2017/4768718

Cited by 9 publications

(6 citation statements)

References 49 publications

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“…Pavement performance model on which the impact of stiffness modulus of the surfacing layer will be tested in the following case study is based on three major studies: Penetration (mm · 10 -1 ) Figure 5: Relationship between penetration and stiffness modulus for all mixtures at a temperature of 20°C. 6 Advances in Materials Science and Engineering Riley and Bennet [5], which is based on Paterson [22], Watanada et al [23], and NDLI [24]. e final model is described in [5] but was further amended to fix further issues mostly by LCPC, TRL, Riley Partnership, ARRB, and UoB.…”

Section: Modelling Methodmentioning

confidence: 99%

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Properties of Asphalt Mixtures Using Reclaimed Asphalt Containing Polymer-Modified Binder and Technicoeconomical Considerations of Their Use

Mikolaj

Schlosser

Remek

et al. 2019

Advances in Materials Science and Engineering

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The article summarises findings from laboratory testing of asphalt mixtures using reclaimed asphalt containing polymer-modified binder and subsequent technicoeconomical considerations of their use in pavement management system. Tested mixtures had 0%, 15%, and 40% content of reclaimed asphalt (RA) containing polymer-modified bitumen (PMB) obtained by milling from surfacing layers of existing PA, AC11, and SMA11 pavement layers. A complete description of these mixtures is given, and testing methods used are described. The mixtures were tested for air void content, ITSR water sensitivity test, plastic deformation wheel tracking test, stiffness of the tested mixtures, and two-point bending test to ascertain fatigue. Concise and succinct conclusions from laboratory testing are derived and used as an input in the second part of the article. It is found that the addition of RA containing PMB increased stiffness modulus of the final mixture, which increases resistance to plastic deformation and leads to higher brittleness at low temperatures. It is found that virgin PMB also increases fatigue resistance as opposed to PMB content from reclaimed materials. In the second part of the article, findings from laboratory testing are addressed in the context of their practical use in pavement management. The key element identified, having a direct impact on pavement performance models, was the stiffness modulus for mixtures with different PMB-reclaimed asphalt contents. A method is described to evaluate pavement construction properties related to wearing course materials via the pavement performance model. Practical use of this method is described and applied in a case study. In this case study, the proposed method is used to evaluate the issues regarding practical use of asphalt mixtures with different ratios of reclaimed asphalt containing PMB and economic implications of their use. It is found that pavement performance of surfacing mixtures with reclaimed asphalt containing PMB is significantly better for plastic deformation at the cost of earlier initiation and progression of surface distress due to cracking and potholing. This paper suggests that due to cracking and potholing, periodic maintenance costs increase for pavements with reclaimed asphalt material containing PMB; however, they are outweighed by lower procurement cost and longer life expectancy due to slower plastic deformation of the pavement.

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Section: Modelling Methodmentioning

confidence: 99%

“…Aggregate and fillers used into the individual mixtures are described in Table 2. Cellulose fibres were added in SMA 11 and AC 11; this is a common practice as fibres are shown to reduce the stress level of asphalt mortar significantly [6].…”

Section: Virgin Bindersmentioning

confidence: 99%

Properties of Asphalt Mixtures Using Reclaimed Asphalt Containing Polymer-Modified Binder and Technicoeconomical Considerations of Their Use

Mikolaj

Schlosser

Remek

et al. 2019

Advances in Materials Science and Engineering

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“…The most important factors that may affect the creep rate of composites are the fiber length, weight ratio, interaction with the matrix inside the composites, temperature, humidity, and the level of stress applied to the composite. Increasing the fiber content and the interfacial interaction between fibers and the matrix reduces the creep rate [39]. One of the challenges of replacing metals with thermoplastics is that many structural parts need to be rigid and provide high impact strength and low creep rate.…”

Section: Creep Testmentioning

confidence: 99%

Date Palm Fiber-Reinforced Recycled Polymer Composites: Synthesis and Characterization

Ali

Assaf

Salah

2022

Advances in Polymer Technology

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In this research study, Recycled Polymer (RP) composites are synthesized by using compression molding process, initial mixtures of RP and Date Palm Fibers (DPF) with four different lengths (e.g., 2.5, 5, 7.5, and 10 mm) and weight ratios (e.g., 5, 10, 15, and 20 wt%). The RP composites utilized in this study are polyethylene and polypropylene. The mixtures of RP and DPF are heated at 80°C and then poured into a priori prepared mold. The mold is designed to have three cavities for three specimens in order to characterize them through impact, creep, and tensile tests. The results showed that the hardness and impact increased with this process. In addition, an increase in the DPF up to 15 wt% was observed with a small increase in the DPF length. High creep resistance was also observed to be 10 mm with 20 wt% in the DPF specimens. The maximum strain was obtained in a 2.5 mm fiber length with 5% of DPF due to ductility of the plastic matrix. Moreover, with a small ratio of tough DPF, short fibers are unable to block or resist rapid plastic deformation in specimens. In fact, the DPF specimens of 10 mm length with 20 wt% exhibit a high tensile strength of 78 N/mm2 in comparison with other composite specimens. This is due to the length and content of fibers, which improve transferring action and microfailure modes.

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“…29 The percentage of nano-zeolite content was 1 % and 2 % by weight of dry aggregates combined with asphalt binder by a mechanical mixture machine. 30 The synthetic nanozeolite used in this study was provided from the Pouyan Exir industrial company in Tehran, Iran. The characteristics of nano-zeolite are shown in Table 4.…”

Section: Nano-materialsmentioning

confidence: 99%

Performance Evaluation of Hybrid Fibers and Nano-zeolite Modified Asphalt Micro-surfacing

Alavi

Tanzadeh

Tahami

et al. 2020

Journal of Testing and Evaluation

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Micro-surfacing is a cationic mixture for reparation and maintenance of asphalt pavement and contains polymer-modified bitumen emulsion, 100 % manufactured well-graded fine aggregate, mineral filler, water, and chemical additives. The object of this study was to extend the lifespan of a Micro-surfacing mixture against traffic loads to obtain a higher performance asphalt mixture using different additives, including Diatomite filler, nano-zeolite, styrene butadiene rubber, and glass fiber. To evaluate the performance of the mixtures, a variety of experimental tests, including the abrasion test (International Slurry Surfacing Association [ISSA] TB 100), adhesion test (ISSA TB109), and Wet Cohesion test (ISSA TB139) and Scanning Electron Microscopy, were conducted to classify Micro-surfacing quality control against traffic loads. Cohesion test results showed that adding 2 % nano-zeolite and 4 % polypropylene increased loading resistance up to 25 % (Quick Set and Quick Traffic). In addition, using 10 % of Diatomite improved abrasion resistance. It is worth noting that with an increasing dosage of asphalt emulsion, the effect of the additives will also increase. Moreover, adding 0.26 % of glass fiber in the mixtures increased bleeding resistance around 14 %.

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

Cited by 9 publications

References 49 publications

Properties of Asphalt Mixtures Using Reclaimed Asphalt Containing Polymer-Modified Binder and Technicoeconomical Considerations of Their Use

Properties of Asphalt Mixtures Using Reclaimed Asphalt Containing Polymer-Modified Binder and Technicoeconomical Considerations of Their Use

Date Palm Fiber-Reinforced Recycled Polymer Composites: Synthesis and Characterization

Performance Evaluation of Hybrid Fibers and Nano-zeolite Modified Asphalt Micro-surfacing

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