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- W638112071 abstract "The initial objectives of Research 18 was to obtain unbiased measurements of the magnitude of variation and the level of characteristics of materials and construction . The final objective of Research Project No. 18 was to develop and evaluate quality assurance type specifications. The work accomplished under Research Project No. 18 covered an appreciable time span with a series of five reports as the work progressed. This report summarizes the results of Project 18. Results of tests on both structural concrete and portland cement concrete pavement indicate that the level and overall variation of compressive strength is satisfactory on most projects but the within-test variaiton is higher than normal. A new bituminous sampling procedure was developed that gives results comparable to AASHO but is more convenient and safer. The desnity of a bituminous concrete pavement determined with a nuclear meter showed that there was a definite pattern of density gradient across the longitudinal joint. Construction of two projects having quality assurance acceptance plans as a contract requirement have shown, in part, that the requirement that the contractor provide his own quality control resulted in a more uniform and increased level of quality; and Department personnel indicated paperwork was far less than on previous projects." @default.
- W638112071 created "2016-06-24" @default.
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- W638112071 date "1980-02-01" @default.
- W638112071 modified "2023-09-27" @default.
- W638112071 title "SYNTHESIS OF STATISTICAL PARAMETERS FOR HIGHWAY CONSTRUCTION" @default.
- W638112071 hasPublicationYear "1980" @default.
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