Coastal Oregon is deficient in quality construction aggregates.
There is, however, an abundance of lower quality, or marginal, aggregate
available for construction purposes. An evaluation of these marginal
aggregates is the purpose of this paper.
There are four classes of marginal rocks found on the Oregon Coast.
Basalts, high in...
Saudi Arabia currently contains 31000 km (18600 mi)
of paved roads and 42000 km (25200 mi) of agricultural
roads, with the prospect of more roads to be constructed.
The low population (6 million) compared to the large area
of the country (2,253,300 km², 900,000 mi²) coupled with
the high cost...
This study was undertaken to provide information needed in the design of ocean outfalls. A review of past investigations concerning forces on submerged objects is presented. Objects independent of any boundary and cylinders in boundary contact are considered. A solution for pressure distribution about a circular cylinder resting on a...
Carbon fiber reinforced polymer (CFRP) materials are emerging as an effective means of strengthening and rehabilitating bridges. Near surface mounting (NSM) is a newer technique for application of CFRP for retrofitting of bridge members that provides advantages over conventional strengthening techniques. The technique is still new and uncertainties remain regarding...
Design methods for pavement mixtures containing recycled asphalt
concrete have been explored in many studies. Most methods of design
are modelled after procedures originally developed for conventional
construction with virgin raw materials. The unique properties of aged
asphalt as raw material are rarely considered when applying conventional
procedures. The approach...
This paper describes the development of structural layer coefficients
for open graded asphalt emulsion surfacing layers which can be used with
the AASHO pavement design method, as modified by the U. S. Forest Service,
Region 6.
A field survey conducted to document the history, performance and
material characteristics of in-service...
Moisture damage has long been recognized as one of the most
critical factors influencing the performance of asphalt concrete (AC)
pavements. This moistureinduced damage occurs from either the
physical separation of the asphalt film from the aggregate or the
softening of the asphalt binder within the AC mixture in the...