|
MPC Research Reports Filter by Keyword13 report(s) found with cement in the keywords field The Rocky Mountain Region has experienced considerable difficulty because of alkali-silica reaction (ASR) in concrete construction. Wyoming Department of Transportation was successful in using recycled concrete aggregate (RCA) on Interstate I-80 with limited ASR damage. Reusing concrete from demolition... Longitudinal joints in Portland Cement Concrete (PCC) pavement slabs require tie (dowel) bars to control joint opening resulting from thermal stresses. Inspections of PCC pavements by the South Dakota Department of Transportation using ground penetrating radar revealed that it is common for tie bars... Calcium sulfoaluminate (CSA) cement was used to cast a prestressed voided deck slab bridge girder. The rapid-set properties of CSA cement allowed the initial concrete strength to reach the required 4300 psi needed in order to cut the prestressing strands 6.5 hours after casting. Prestress losses were... The objectives of this study were to assess geotechnical properties of mine waste amended with fly ash and evaluate reuse of fly ash amended mine waste as road construction material. Three types of fly ash and one type of cement were used as cementitious binder. Natural and synthetic (i.e., laboratory... For highways located in different counties and cities across the country, specific conditions of weather, terrain, traffic characteristics, highway conditions, population and economic development are all different. Driving environments, traffic accidents and injury risks have strong interactions, which... Investigations into the effects of the addition of vertically-oriented shear spikes with fiberglass reinforced polymer rods have shown that the shear spikes increased the effective stiffness of the stringers of a full-scale timber bridge chord specimen. This was previously found to be true on dimension... Congestion in Salt Lake City is showing an increasing trend and, as congestion reaches higher levels, benefits of the HOV lanes will also increase. It needs to be determined whether the Salt Lake Valley HOV lanes are performing effectively in terms of travel time benefits, safety and the ability to carry... This research project, "Evaluating and Improving Pedestrian Safety in Utah," was initiated in December 2000. Two interim reports have been prepared thus far, including Facilitation of Pedestrian Crossings in 28 States and Literature Review of Pedestrian Safety Measures (Cottrell 2001) and Literature... This paper summarizes the results of a study on direct assessment of rural user needs in Montana, North Dakota and South Dakota. The objective was to assess rural road users and providers perceptions of rural road needs. Different rural road user groups were identified to obtain a representative sample... The objectives of this research were to determine if fly ash has an effect on the field performance of cement-treated bases, determine if cement-treated bases perform similarly to other base types, and develop pavement performance models for interstate and non-interstate roadways in the state of Wyoming.
|