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| 1993 | |||
| Special Provisions | |||
| SP421-004 | RTF | PORTLAND CEMENT CONCRETE - VOID - DO NOT USE. Increases the percentage of allowable material finer than the No. 200 sieve from 1 to 3 for crushed limestone. Applies for use in concrete pavements only. Replaces SP421-002 . Districtwide Use. Houston District, Beaumont District. | |
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