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Document Type

Research

Abstract

Autoclave treatment of concrete bars made from argillaceous dolomitic carbonate aggregates at a temperature of 420 ° ± 3 ° F. and a steam pressure of 295 ± 10 lbs. for 3 to 9 hours caused the progressive development of silicified reaction shells on the coarse carbonate aggregate similar to those found in distressed concrete. Similar treatment of concrete bars made from pure limestone aggregates induced no reaction shell growth. The susceptibility of carbonate aggregates to silicification could be rapidly determined by the autoclave method.

Publication Date

1959

Journal Title

Proceedings of the Iowa Academy of Science

Volume

66

Issue

1

First Page

210

Last Page

213

Copyright

© Copyright 1959 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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