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- W640322437 abstract "Detailed consideration is given to the use of roller compacted concrete in the construction of pavements. The characteristics of conventional concrete pavements are first examined including their design, causes of failure and economics. The history of roller compacted concrete is then traced beginning with its use in Canada and France in the 1970s and present widespread use in the United States. The properties of roller compacted concrete are then compared with conventional plastic concrete and the main differences found to relate to the greater proportion of aggregate used, ie a reduced coefficient of drying shrinkage and a higher modulus of elasticity. Texturing of the surface is not possible and reduced water content calls for greater care during the curing process. Segregation of the aggregate is a problem and suggestions are made as to how to avoid this. Strength achievement is hard to predict and load transfer at joints and cracks may be less than 20%. The use of multilayer construction and its bonding is discussed. Factors to be considerd in designing roller compacted concrete pavements are listed and the choice of concrete materials, including retarders, considered. Two methods of mix design, soil mechanics and concrete technology, are assessed and areas of concern for quality assurance noted. (TRRL)" @default.
- W640322437 created "2016-06-24" @default.
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- W640322437 date "1990-04-01" @default.
- W640322437 modified "2023-09-27" @default.
- W640322437 title "PROCEDURE FOR THE DESIGN AND SPECIFICATION OF ROLLER COMPACTED CONCRETE PAVEMENTS" @default.
- W640322437 hasPublicationYear "1990" @default.
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