6 articles for “Marshall Test”

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Research ArticleOpen accessIn the keywordsEffect of Crumb Rubber as Coarse and Fine Aggregates on the Properties of Asphalt ConcreteArabi N.S. Al Qadi, Mahmoud B.A. Alhasanat, Madhar HaddadThis research has used crumb rubber in asphalt mixture as a part of the coarse and fine aggregate. Three sieve sizes of crumb rubbers were used in asphalt mixture No. 4, No. 8 and No. 50, with five percent of asphalt cements (4, 4.5, 5, 5.5 and 6%) by weight and four percent of crumb rubbers (10, 20, 30 and … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 3 · 24 Jun 2016 · 9,525 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAn Observational Study on the Prevalence of Sexually Transmitted Infections in Cheonan from 2017 to 2021Sun Jung Lee, Tae Su Jang, Jae Kyung KimAlthough the global incidence of sexually transmitted infections is increasing annually, there are few studies in Cheonan that have analyzed the frequency of infection by individual bacterial species by age since 2017. Therefore, in this observational study, we investigated trends in sexually transmitted infections in Cheonan, South Korea, since 2017. From January 2017 to November 2021, 3,297 specimens were obtained … …American Journal of Biochemistry and Biotechnology, Vol. 20, Issue 2 · 17 Apr 2024 · 6,316 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Effects of Using Crumb Rubber Modified Binder in an Asphalt PavementSayed Mohamad Soleimani, Alanoud Faheiman, Zainab MowazeIn this study, laboratory investigations have been carried out to characterize and demonstrate the improved performance of asphalt after modifying it with crumb rubber. The study has been divided into two main parts. Firstly, the physical characterizations of crumb rubber modified bitumen with different percentages of crumb rubber have been evaluated using penetration, softening point, viscosity, ductility and thin film … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 2 · 14 May 2020 · 8,377 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAssessing and Improving the Performance of Grouted MacadamMomtaz M. Othman, Ahmed Ebrahim Abu El-Maaty, Zeinab S. HusseinThere are many road defects appear in flexible pavement layers. Rutting, raveling and cracks are considered the main problems in Egypt. Using grouted macadam system as a surface asphaltic layer (or called Semi-Flexible Pavement (SFP)) has many advantages such as saving the natural asphalt and enhancing the performance against deteriorations. The main scope of this research is to evaluate and … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 2 · 29 Apr 2020 · 7,078 accessesView PDF Cite

Research ArticleOpen accessIn the abstractCharacterization of Recycled Asphalt Pavement (RAP) for Use in Flexible PavementAhmed Ebrahim Abu El-Maaty, Abdulla Ibrahim ElmohrDue to economical reasons and the need for environmental conservatism, there has been an increasing shift towards the use of Recycled Asphalt Pavement (RAP) materials in the pavement construction industry. The majority of HMA mixtures in Egypt are produced only from virgin materials although there are about 4 million tons per year of reclaimed asphalt materials, due to continuous pavement … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 2 · 20 Jun 2015 · 9,213 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Use of Polyethylene in Hot Asphalt MixturesMohammad T. Awwad, Lina ShbeebThe increase in road traffic during the last two decades in combination with an insufficient degree of maintenance due to shortage in funds has caused an accelerated and continuous deterioration of the road network in Jordan. To alleviate this process, several types of measures may be effective, e.g., securing funds for maintenance, improved roadway design, use of better quality of … …American Journal of Applied Sciences, Vol. 4, Issue 6 · 30 Jun 2007 · 14,664 accessesView PDF Cite