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Now showing items 11-20 of 74
Terminal end joints in continuously reinforced concrete pavement interim report (FHWA-OK-92-__)
(1992-10)
During the past 20 years, the Oklahoma Department of Transportation (ODOT) has constructed over 450 lane miles of Continuously Reinforced Concrete Pavement (CRCP) on its interstate and U. S. highway system. Throughout that ...
Ultrapave - final report (OK-97-10) 2293
(1997-11)
Premature rutting is a common problem with asphalt concrete pavements, particularly when they are subjected to frequent heavy-axle loading. Producers of asphalt modifiers claim that polymers reduce rutting and other ...
Bridge steel coatings tolerant of minimal surface preparation (FHWA-OK-96-08)
(1996-11)
In 1993 and 1994, the Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) initiated regulations that radically altered practices in the paint industry. Many of these measures ...
Field performance evaluation of NOVOPHALT modified asphalt concrete
(1993-6)
In 1992, a research project was set up to evaluate the field performance of Novophalt Modified Asphalt Cement (NMAC). The IM-35-3(223)130 project area (I-35 between Northeast 23rd and 63rd, in Oklahoma City) made up the ...
Breaking and seating - final report
(1995-10)
A preliminary investigation of lJS 169 in Nowata county was completed in June 1988. The 9.9 km (6.2 mi) section of two-lane roadway is located 8.0 km (5.0 mi) north of the city of Nowata. The majority of the 4.5 m ( 15.0 ...
Roadside vegetation management final report for the period July 1986 to June 1991 (FHWA-OK-91-10) 2147
(1991-12)
The information contained within this report addresses: (1) Research -- involving the use of herbicides and plant growth regulators for roadside vegetation management; (2) Maintenance -- implementing research results into ...
Components of variability in bituminous concrete pavement construction Volume II - Field and laboratory evaluation (FHWA-OK-92-07) 2179
(1992-6)
The objectives of phase-II of the project were: 1) to detennine the components of the total variability in the measured quality attributes of acceptable bituminous concrete pavement construction in Oklahoma, 2) to assess ...
Freeze-thaw durability of concrete made with marginal aggregate (FHWA-OK-91-04) 2137
(1991-6)
Much of the crushed limestone aggregate produced in the Oklahoma region is susceptible to freeze-thaw action and can result in popouts and D-cracking in concrete. Four series of tests involving over 120 batches of concrete ...
Modification and evaluation of SENTRE impact attenuation devices (FHWA-90-02) 2719
(1990-3)
This report covers a study of SENTRE Impact Attenuation Devices, done to identify potential design or installation improvements, to make these improvements, and evaluate performance of the devices once the indicated ...
Semiactive vibration absorbers (SAVA) at the I-35 Walnut Creek bridge (FHWA-OK-97-08) 2125
(1997-8)
The project was undertaken to develop and field test an automatically controlled bridge mounted vibration absorber. The system, referred to as a semiactive vibration absorber (SAVA) consists of a hydraulic cylinder coupled ...