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Roller compacted concrete
Roller compacted concrete takes its name from the construction method used to place it. It has the same basic ingredients as conventional concrete but it is a much drier mix. It is stiff enough to be placed with conventional asphalt paving equipment and then compacted with a roller. The low water content means that high strengths can be achieved with relatively low cement contents.
The technique was developed originally in Canada in the 1970s, where it was used for the construction of large storage and handling areas for the timber industry. Since then it has been used for a range of similar large area paving applications and, in multiple layers, for the construction of gravity dams.
Acknowledgement:
The Concrete Society
