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From page 99... ...
The objective of the synthesis is to document state DOT practices for using SCMs in concrete. This survey of state DOTs is a primary means of gathering information for the synthesis.
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From page 100... ...
Fly ash Class C [ ] Harvested and/or beneficiated fly ash meeting ASTM C618-23/AASHTO M 295 (Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete)
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From page 101... ...
Place "0" if not allowed or natural pozzolans not included in specification. • Allowable percent calcined clay __________________ • Allowable percent calcined shale_________________ • Allowable percent calcined pumice ________________ • Allowable percent metakaolin ____________________ • Allowable percent rice husk ______________________ • Natural pozzolans have not been included in specifications __________________ 9)
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From page 102... ...
Test Yes No Pozzolanic reaction test Chloride permeability test Surface resistivity test Bulk resistivity test Shrinkage test Freeze–thaw test Air-void system parameters If your agency uses three or more of the tests shown above, please provide a link to your specification or other special provision(s)
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, please specify__________________________ 16) Is your state experiencing shortage of fly ash to supply DOT projects, or has your state experienced shortages in the past?
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If you checked more than 3 tests, please provide a link to your department ASCM, or SCM specification with provisions for ASCMs ____________________________ 22) Would your department accept test results on ASCM performance from producers, private laboratories, vendors, product champions, or other states to support approval of ASCMs for use?
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From page 105... ...
[ ] Data from other source accepted (please specify)
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Key Terms
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