Performance evaluation of asphalt pavement groove-filled with polyurethane-rubber particle elastomer

Yao, Tengfei; Han, Sen; Men, Changpeng; Zhang, Jinchao; Luo, Jianrong; Li, Yang

doi:10.1016/j.conbuildmat.2021.123434

Cited by 17 publications

(7 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…n another investigation was carried out due to the problems that occur in asphalt pavements in China, during the service using a modifier of granular rubber and polymer fiber resulting in having a better behavior in cracking resistance (18). In another context, due to the impact of icing on roads, a technology using elastic polyurethane rubber particles (EPRP) was proposed, with an optimal dosage of 24.6% of the binder weight, to determine this value the adhesive mechanical properties, durability, ice-breaking performance, and roughness were tested considering tire friction and pavement surface (19).…”

Section: Discussionmentioning

confidence: 99%

Sustainable management and comprehensive administrative control of asphalt pavements case study, Perú

Almeida,

Aparco,

Lipa

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The management of asphalt pavements is of great importance for the development of road, motorway and airport runway infrastructures. For the company to achieve its goals, the use of administrative control instruments or tools such as evaluations and follow-ups of employees. Such control begins with the design by the company of an organizational structure where activities are planned and their effectiveness with their subsequent evaluations. The study aimed to analyze the management of asphalt maintenance and its administration process in a pavement and construction company in the Lima region, Peru. The methodology used was the hypothetical deductivo. Thedesign was non-experimental and cross-sectional deliberating the variables in a single time of study in a descriptive way, the sample population was the administrative workers and workers to perform the research technique, the type of instrument used was the survey with anonymous questions and closed questions, or at least all those questions that best respond to the situation we want to know. An analysis of frequencies and weighting of percentages was made from which it obtained, the values that allowed us to know the problems of the company with respect to the variables under study such as administrative control and maintenance, the validity of the instrument had a degree of reliability of Cronbach’s alpha of 0.879 for the variable Administrative control and maintenance of 0.849. In the research regarding the dimensions of asphalt pavement have a relationship with the administrative management of the company, having a positive significance.

show abstract

Section: Discussionmentioning

confidence: 99%

Sustainable management and comprehensive administrative control of asphalt pavements case study, Perú

Almeida,

Aparco,

Lipa

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…ey are aiming to impart inherent compatibility and long-term phase stability to the modified bitumen. New modifier such as reactive isocyanate [2,34], polyurethane [35][36][37], and PET derived amides and polyurethane [16,21,38] are used in modification of bitumen and improve rheological properties, storage stability, and temperature susceptibilities of the binder.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Performance Enhancement of Bitumen by Waste PET-Derived Polyurethane

Mersha

Sendekie

2022

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Bitumen performance enhancement through modification by reactive polymers gained significant attention in the road construction industry. Polymeric bitumen additives, such as polyurethane, improve bitumen properties at low and high in-service temperatures. This research aimed to increase the polymer content (polyurethane) from 3% to 5%wt of bitumen by introducing cross-linking agent, sulfur. Synthesis of polyurethane was via in situ polymerization of bis (2-hydroxyethyl) terephthalamide (BHETA) in the presence of bitumen with sulfur as a cross-linking agent. BHETA was produced from polyethylene terephthalate (PET) by an aminolysis reaction. Penetration and softening point, frequency sweep test, performance grade (PG) and multiple stress creep recovery (MSCR) were evaluated to compare base and modified bitumen. Results show that the penetration and softening point of modified binders were reduced and increased, respectively, the frequency sweep test indicated improvement in viscoelastic properties of modified bitumen, PG of base bitumen was enhanced by two grades, i.e., from 58°C to 70°C, and the nonrecoverable creep compliance was increased by 81.82% at polymer content of 4% and sulfur content of 0.2%. The FTIR spectra of modified bitumen confirmed the formation of urethane linkages. Therefore, aminolysis of waste PET and in-situ polymerization to produce polyurethane can be applied to improve the performance of bitumen at high temperatures.

show abstract

“…A good effect can be achieved by weakening the binding force of the ice layer with coatings [ 19 ]. Ice breaking capability was increased by road surface filled rubber elastomer [ 20 ]. While the improvement of freeze–thaw methods tends to diversify, the research on the mechanism of freeze–thaw cycles is also continuing to advance.…”

Section: Introductionmentioning

confidence: 99%

Effects of Freeze–Thaw Cycles on the Internal Voids Structure of Asphalt Mixtures

Jing

Liu

2022

Materials

View full text Add to dashboard Cite

Freeze–thaw cycle is one of the main distresses of asphalt pavement, and the law of freeze–thaw damage has always been an important topic. In this paper, X-ray computed tomography (CT) of asphalt mixture before and after freezing and thawing was carried out, and its two-dimensional (2D) digital image was recognized. Firstly, the eigenvalues of internal voids of asphalt mixture are extracted. Then the distribution of internal voids was analyzed. Finally, the evolution law of internal voids was summarized. The research results show that the characteristic mean value of the 9th cycle is the irreversible limit of freeze–thaw damage, and the non-resilience after the large void area increases is the fundamental reason for the accumulation of freeze–thaw damage. The source of void damage shifts from large voids to small voids, and the middle-stage is a critical stage of freeze–thaw damage. This work quantitatively evaluates the internal freeze–thaw damage process of asphalt mixture, and a morphological theory of the evolution of void damage based on an equivalent ellipse is proposed, which is helpful for better understanding the freezing–thawing damage law of asphalt pavement.

show abstract

Performance evaluation of asphalt pavement groove-filled with polyurethane-rubber particle elastomer

Cited by 17 publications

References 40 publications

Sustainable management and comprehensive administrative control of asphalt pavements case study, Perú

Sustainable management and comprehensive administrative control of asphalt pavements case study, Perú

High-Temperature Performance Enhancement of Bitumen by Waste PET-Derived Polyurethane

Effects of Freeze–Thaw Cycles on the Internal Voids Structure of Asphalt Mixtures

Contact Info

Product

Resources

About