PSI is one part of the specification
Required strength alone does not define a complete mix. Share aggregate size, slump, exposure requirements, admixtures and any approved mix designation from your project documents. Availability and suitability must be confirmed.
Stone and fiber selections
The quote form offers #57 and #89 stone, with #89 used for its 2,500 PSI selection. Fiber can be requested. Do not substitute fiber for specified reinforcement without approval from the project's responsible professional.
Flowable fill is a different application
Non-excavatable flowable fill is available as a quote request option. Explain the intended backfill use and required properties. Do not treat a flowable fill request as a structural concrete mix selection.
Projects requiring approval documents
If your project requires FDOT-related documentation, test reports or a specific approved mix, identify that requirement with the quote request. Obtain the applicable documentation and project approval before scheduling.
Common questions
Which PSI should I choose?
Use the specification supplied by your designer, engineer or contractor. If you do not have it, leave the selection open and describe your project for follow-up.
Can I request a mix outside the form choices?
Yes. Put the required mix and documentation in the project notes. The team must confirm whether it can be supplied.