Shotcrete as a Construction Material


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Title: Shotcrete as a Construction Material

Author(s): T. J. Reading

Publication: Special Publication

Volume: 14


Appears on pages(s): 1-14


Date: 3/1/1978

Defines both wet-mix and dry-mi shotcrete, and reports on its generally satisfactor performance in widely varied applications. Shotcrete is well adapted to thin, lightly reinforced concrete sections in new construction, as well as for repairs and thin overlays. In spite of a high cost per cubic yard, it is frequently more economical than conven-tional concrete for such purposes. Results of the Committee 506 questionnaire sent to shotcrete users are reported, including data on extent of use, performance, and causes of unsatisfa-tory performance. Poor workmanship is the most fre-quently reported cause of shotcrete failures. Noting that sampling and testing procedures must be quite different from those for conventional concrete, em-phasis is placed on test sections gunned under field conditions.