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Assessment of Response and Performance of Perpetual Pavements with Warm Mix Asphalt Surfaces at the Ohio Accelerated Pavement Load Facility

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A controlled environment study of perpetual pavement was conducted at the Ohio Research Institute for Transportation and the Environment’s Accelerated Pavement Load Facility (APLF). The surface layer of each section consisted of one of the Warm Mix Asphalts (WMA), Aspha-min, Sasobit, and Evotherm, or a hot-mix control. The test sections were divided into northern and southern halves, with the northern halves having a full 16 in. (400 mm) perpetual pavement; the southern halves had intermediate layer thicknesses decreasing in 1.0 in (25 mm) increments, which was compensated for by increasing the thickness of the dense-graded aggregate base. Instrumentation in the southern half was used to measure temperature, subgrade pressure, deflections, and longitudinal and transverse strains at the base of the fatigue resistance layer. The temperature was set to 40◦ F (4.5◦ C), 70◦ F (21◦ C), and 104◦ F (40◦ C), in that order. At each temperature, Rolling Wheel Loads (RWL) of 6,000 lb (26.7 kN), 9,000 lb (40 kN), and 12,000 lb (53.4 kN) were applied at selected lateral shifts and the sensor responses measured before and after being subjected to 10,000 passes of 9,000 lb (40 kN) RWL at ∼5 mph (8 km/h). Profiles were measured after 100, 300, 1,000, 3,000, and 10,000 passes to assess consolidation of each surface.

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Informasi Detail

Judul Seri

Advances in Pavement Design through Full-scale Accelerated Pavement Testing (R)

No. Panggil

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Penerbit

London : ., 2012

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

978-0-415-62138-0

Klasifikasi

NONE

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