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Experimental Installations Of Impact Attenuation Devices, Bruce S. Siria, William M. Seymour, Don L. Cornette, James L. Miller
Experimental Installations Of Impact Attenuation Devices, Bruce S. Siria, William M. Seymour, Don L. Cornette, James L. Miller
Kentucky Transportation Center Research Report
The expanding system of limited access, multilane highway facilities in the United States has enhanced traffic service between many varied origins and destinations. As a result, these facilities have not only reduced travel times and travel costs, but have generated additional travel by virtue of their technological splendor. The increasing dominance of multilane highways in terms of percentage of total vehicle miles travelled has produced a revolution in highway engineering philosophy. Higher design speeds, increased lane widths, lateral separation of opposing traffic streams, absence of passing restrictions, and increased traffic capacities were attributes intuitively sought. An ironic result is the …
Experimental Concrete Pavement Containing Fly-Ash Admixtures [1971], James R. Philpot
Experimental Concrete Pavement Containing Fly-Ash Admixtures [1971], James R. Philpot
Kentucky Transportation Center Research Report
The report enclosed is somewhat routine inasmuch as it documents a repeat of a portion of an earlier experimental project. The previous project was on Poplar Level Road; our final report was dated July 1966 (KYHPR-64-1). Special Provision No. 70 was used also on the Jefferson Freeway project. However, there was no "control section" involved in the current project. The Jefferson Freeway project was authorized by the BPR under P.P.M. 60-2 only (now PPM 20-6.3).
The most significant findings from both projects concern the water requirements the concrete containing the fly-ash admixture. Whereas laboratory tests indicated reasonable expectations of a …