You are here: Home > Departments > Community Development Agency > Sustainability > Low Carbon Concrete Requirements > List of Pre-Qualified Supplier's Concrete Mix Designs

List of Pre-Qualified Supplier's Concrete Mix Designs

Community Development Agency

List of Pre-Qualified Concrete Mix Designs

The following is a list of pre-qualified concrete mix designs that comply with the County's Low Carbon Concrete Ordinance as registered by ready-mix businesses supplying concrete within the County. This list does not endorse any one business.

All businesses supplying concrete within Unincorporated Marin County are welcome to pre-qualify their mix design(s) by completing this application form.



Pre-Qualified Concrete Mix Designs

(The table below is informational only. For more details on mix designs please contact the listed business.)

County Issued Ref. No. Supplier Mix design (No./Code) Application Strength @ 28 days (psi) W/C Ratio Binder Contact
00001 Shamrock Materials 3561B5D1 Sidewalks, Curbs, and Gutters; Walls; Slabs; Curb & Gutter; ADA Ramps 4000 0.50 451 lbs. Cmt, 20% Fly Ash Greg Gehring
00002 Shamrock Materials 456115E1 Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs; Precast; Prestressed; Curb & Gutter; ADA Ramps 4000 0.49 424 lbs. Cmt, 25% Fly Ash Greg Gehring
00003 Shamrock Materials D70112E1 (High Early Strength) High Early Strength Only: Walls; Beams; Slabs; Precast; Prestressed 5000 0.40 529 lbs. Cmt, 25% Fly Ash Greg Gehring
00004 Bauman Landscape and Construction, Inc 02-6001 Sidewalks, Curbs, and Gutters 4000 0.50 451 lbs. Cmt, 20% Fly Ash Derek Davis
00005 Bauman Landscape and Construction, Inc 18-5600 Sidewalks, Curbs, and Gutters; Slabs; Flatwork 3000 0.50 409 lbs. Cmt, 33% Fly Ash Derek Davis
00006 Bauman Landscape and Construction, Inc 19-6502 Sidewalks, Curbs, and Gutters; Slabs; Flatwork 4000 0.50 428 lbs. Cmt, 30% Fly Ash Derek Davis
00007 Bauman Landscape and Construction, Inc 20-5502 Sidewalks, Curbs, and Gutters; Slabs; Flatwork 3500 0.50 414 lbs. Cmt, 20% Fly Ash Derek Davis
00008 Bauman Landscape and Construction, Inc 78-50500 Sidewalks, Curbs, and Gutters; Slabs; Flatwork 2500 0.50 329 lbs. Cmt, 30% Fly Ash Derek Davis
00009 Bauman Landscape and Construction, Inc 71-60450 Walls; Sidewalks, Curbs, and Gutters; Slabs; Flatwork 4500 0.45 395 lbs. Cmt, 30% Fly Ash Derek Davis
00010 Rich Readimix Concrete 608-118LC Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs 3000 0.55 395 lbs. Cmt, 30% Fly Ash Shaun Lennon
00011 Rich Readimix Concrete 3161LC Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs 4000 0.50 451 lbs. Cmt, 20% Fly Ash Shaun Lennon
00012 Rich Readimix Concrete 708-118LC Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs 4000 0.45 456 lbs. Cmt, 30% Fly Ash Shaun Lennon
00013 Rich Readimix Concrete 55B-LC Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs 3000 0.52 388 lbs. Cmt, 25% Fly Ash Shaun Lennon
00014 Rich Readimix Concrete 50B-LC Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs 2500 0.62 352 lbs. Cmt, 25% Fly Ash Shaun Lennon
00015 Eco Terra Ready-Mix 6SK4K1X425F Sidewalks, Curbs, and Gutters; Walls; Beams; Slabs 4000 0.55 423 lbs. Cmt, 25% Fly Ash Darrell Carpenter
               
               
               

*Last Updated 4/22/2024