CRMCA Technical Resource Library: What’s New in 2023?

The CRMCA Technical Committee has been busy working to develop updated resources as we look to 2023. As it is a new year, I want to emphasize some reference documents that can be useful to you and your employees and remind you of the way to get involved with the Technical Committee. These references include improvements in partnership with the Colorado Department of Transportation (CDOT), quick reference guides created for the concrete industry, and online educational instructional videos.

CP-65 Proposed Revisions

The Colorado Procedure 65-19 (CP-65) references evaluating low strength concrete using cast and cured specimens or cored specimens. The procedure was last revised in 2019, though significant clarification was still needed. Through the efforts of the CRMCA Technical Committee, revisions for CP-65 have been proposed to CDOT for approval including:

• Clear definitions for team members, curing requirements, and coring limitations.
• Corrections and clarifications for descriptions and calculations
• Additions for improvement and consistency

As CDOT reviews the changes proposed in 2023, the Colorado Procedure will be updated for future state projects and the CRMCA will continue update our members. Additional input from our CRMCA members is welcome.

Quick-reference Guides for Colorado concrete project team members to assist in a clean running project in addition best practices and understanding in concrete placement and finishing.

• Pre-construction Meeting Checklist
  • The checklist highlights needs that may not otherwise be discussed before a concrete placement, specifically initial curing responsibility and report distribution.
• Exterior Concrete Flatwork Construction and Maintenance Best Practice (English & Spanish)
  • Assists with planning and the installation of exterior concrete.
  • Breaks down equipment patterns and order, personnel and equipment needs, expectations, and preventative measure during placement and finishing actions.
• Homeowner’s Ongoing Exterior Concrete Maintenance Guide
  • A helpful guide to assist homeowners and business maintenance operators during and after concrete placement to extend the life of their property.
• “Concrete in Colorado”
  • These fact sheets reference the appropriate Specifications and Standards at different stages of concrete construction.
    • CIC – Jobsite Curing of Concrete Test Specimens
    • CIC – Making Concrete Cylinders
    • CIC – Scaling Concrete Surfaces

Online ASTM Testing Procedure

• Videos available on CRMCA’s YouTube page assist in understanding procedures including tips and reasoning for FREE and for ALL! The certification procedure videos include:
  • Concrete Field Testing Technician Grade 1 procedure videos
  • Concrete Strength Testing Technician procedure videos
• Watch out for new content or just Subscribe to the channel.

Presentations on highly interesting topics through the years.

• Cold Weather Concrete in Colorado
• Using High Early Concrete or Accelerators: One Hot Topic (Access a Recording; Passcode: =Mm!kR0#)
• 3D Concrete Printing (Passcode: H+c^i30b)
• Ash an Expert: A Prelude to Alternative SCMs (Access a Recording; Passcode: pmU6M*2M)
• EPC Engage: The Dos and Don’ts of Concrete Work (Concrete Inspection 101) (Access a Recording)
• Portland Lime Cement (PLC Type IL) (Access a Recording; Passcode: gLYu%13K)
• Education on the CTAC (Concrete Testing Adherence Collaboration) Program

Most of this information and other educational information can be accessed through the CRMCA Technical Resources webpage. These references are only available because of the teamwork and commitment of the CRMCA Market and Technical Committee members that continue to share their collective knowledge in the industry.

If you have any comments or questions, please reach out to me via email at jt@coloradocaa.org or by phone at (720) 272-6592.

JT Mesite, P.E.
CRMCA
Program Manager