Average full-trailer truck equivalency factors for uphill flexible pavements in developing countries

Razouki, Sabah Said; Almuhanna, Raid R. A.; Hashim, Zahraa

doi:10.1080/10298436.2020.1859507

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…The installation of concrete pavement on steeply sloped roadways has advantages over asphalt, gravel, or unsurfaced conditions due to the increased strength, increased durability, and the ability to better resist damage from intense precipitation events. On rising grades, the loads on the rear axles of trucks are increased due to force equilibrium (Razouki and Radeef, 2005), and it has been shown that overloaded and tall trucks can cause excessive damage to flexible pavements when driving up steep slopes, especially in developing countries (Karim et al, 2013, Razouki et al, 2020. The stability and rigidity of concrete makes it more resistant to the higher stress levels induced by trucks and motor vehicles on steep grades.…”

Section: Introductionmentioning

confidence: 99%

Design, construction and monitoring of concrete roadway pavement at extremely steep longitudinal slopes

Senseney

Suermann

2021

International Journal of Pavement Engineering

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Previously, he led numerous, large-scale military construction projects around the world and excelled as an educator during a distinguished 20-year career as a U.S. Air Force Civil Engineer officer. Disclosure Statement -No potential competing interest. Design, construction and monitoring of concrete roadway pavement at extremely steep longitudinal slopesMost conventional roadway pavements are not constructed at grades greater than 15 percent due to construction limitations and/or motor vehicle operator safety concerns; however, there are conditions, especially in the developing world, where roadways must be built at extremely steep longitudinal slopes. Currently, there are limited published design procedures for extremely steep concrete roadways, and little guidance on either the type, shape, or spacing of sliding restraint devices for these pavements. This paper presents an original design methodology for concrete roadways at slopes of 15 to 60 percent with integral concrete lug anchors to resist sliding where the design computes a sliding factor of safety of the earth pressure resistance developed by the lug anchors as compared to the downhill forces acting on the concrete pavement from gravity, vehicle loading and vehicle braking. A case study of a concrete roadway construction project, which uses the lug anchor design methodology with slopes of 23 to 58 percent and with limited right of way, is also presented. Many valuable lessons were learned during the construction of a roadway at such steep grades, including novel ways to transport and place fresh concrete and the fabrication of specialized equipment to screed and smooth concrete on a steep slope.

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Section: Introductionmentioning

confidence: 99%

Design, construction and monitoring of concrete roadway pavement at extremely steep longitudinal slopes

Senseney

Suermann

2021

International Journal of Pavement Engineering

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“…Dalam konstruksi jalan, terdapat beberapa item yang dilakukan seperti penggalian, pengurukan, perkerasan dan pembangunan elemen jalan lain [5]. Perkerasan jalan merupakan bagian jalan raya yang diperkeras dengan lapisan tertentu serta dengan kekampuan tertentu agara mampu menyalurkan beban dari kendaraan ke tanah dasar secara aman [6][7] [8].…”

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Desain Perkerasan Jalan Sumberboto - Gununggede Blitar Menggunakan Metode Manual Desain

et al. 2021

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The road is an access that connects an area with other areas. With the road, mobility will be easier so that it has an impact on increasing or stabilizing the economy. The Sumberboto-Gunung Gede Blitar road section is one of the access roads to Tambakrejo beach tourism. To improve comfort and safety for road users, it is necessary to improve road quality. This study aims to plan the pavement on the Sumberboto-Gunung Gede Blitar road section. The planning is carried out on the condition of the heavily damaged pavement, with a service life of more than 10 years, the width of the road is 4 meters, the length of the road is 6 kilometers, the type of collector road is class II, and the type of pavement is laston. The planning carried out includes the addition of roads in the hills of Blitar Regency, the data used includes the condition of the sections on the road with calculations referring to the Design Manual Number 02/M/BM/2013 road pavement. The planning results obtained road construction with flexible pavement, with a specification of a surface layer of 10 cm, a layer of 20 cm for the top foundation, 25 cm for the bottom layer of the foundation. From this plan, a total budget of Rp. 13,572,808,084.00 (thirteen billion five hundred seventy-two million eight hundred thousand rupiah) is required. With these results, it can be used as a reference in realizing road construction on the Sumberboto-Gunung Gede Blitar road section.

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Average full-trailer truck equivalency factors for uphill flexible pavements in developing countries

Cited by 2 publications

References 9 publications

Design, construction and monitoring of concrete roadway pavement at extremely steep longitudinal slopes

Design, construction and monitoring of concrete roadway pavement at extremely steep longitudinal slopes

Desain Perkerasan Jalan Sumberboto - Gununggede Blitar Menggunakan Metode Manual Desain

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