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Engineering

 Contact Information

Dept Head: Chad Crager

Approved Asphalt Mix Designs

Supplier Mix ID Grading RAP % AC Supplier PG Binder Street Classification Min/Max Lift Thickness
Connell 10150 SX 75 20 Suncor 64-22

Residential All Lifts

1.5" / 3"
Connell 10250 SX 75 0 Suncor 64-22

Residential All Lifts

1.5" / 3"
Connell 11050 SX 75 20 Suncor 64-28 (modified)

Arterial/Major Collector/Industrial/Commercial Top Lifts

1.5" / 3"
Connell 12050 SX 75 20 Suncor 58-28

Residential/Minor Collector All Lifts

Arterial Lower Lifts

1.5" / 3"
Connell 20150 S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

2" / 4"
Connell 20250 S 75 0 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial
Lower Lifts

2" / 4"
Connell 20350 S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

2" / 4"
Connell 21050 S 75 20 Suncor 64-28 (modified)

Arterial/Major Collector/Industrial/Commercial Top Lifts

2" / 4"
Connell 22050 S 75 20 Suncor 58-28

Residential/Minor Collector All Lifts

Arterial Lower Lifts

2" / 4"
                 
Kehn 635219 S 75 0 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

2" / 4"
Kehn 638119 S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

2" / 4"
Kehn 638219 SX 75 20 Suncor 64-22 Residential All Lifts 1.5" / 3"
Kehn 638319 SX 75 0 Suncor 64-22 Residential All Lifts 1.5" / 3"
                 
Martin Marietta

1243-5462

Fort Collins

Greeley

SX 75 20 Suncor 64-22 Residential All Lifts 1.5" / 3"
Martin Marietta 1253-5473 SX 75 20 Suncor 64-28 (modified) Arterial/Major Collector/Industrial/Commercial Top Lifts 1.5" / 3"
Martin Marietta

2243-5493

Fort Collins

Greeley

S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial Lower Lifts

2.0" / 4.0"
Martin Marietta

2253-5494

Fort Collins

Greeley

S 75 20 Suncor 64-28 (modified) Arterial/Major Collector/Industrial/Commercial
Top Lifts
2.0" / 4.0"

 

Approved Concrete Mix Designs

Material Supplier Mix ID Strength Age Intended Use
Aggregate Industries 6406150 4000 psi 28 Days Exterior Flat Work, Etc.
Aggregate Industries 6450100 4500 psi 28 Days Exterior Flat Work, Etc.
Aggregate Industries 7456120 4500 psi 28 Days As Required
Aggregate Industries 7456122 4500 psi 28 Days Machine Placement
Aggregate Industries 9456627 4200 psi 28 Days CDOT Class E / 24 Hr High Early
         
Bestway Concrete 4531495 4500 psi 28 Days CDOT Class B/D/P
Bestway Concrete 4531275 4500 psi 28 Days CDOT Class B/D/P Low Slump
         
Johnstown Ready Mix 021 4000 psi 28 Days Flow Fill
Johnstown Ready Mix 027 4000 psi 28 Days Exterior, C&G, Sidewalks, Etc.
Johnstown Ready Mix 076 4500 psi 28 Days CDOT Class B & D
         
Loveland Ready Mix 021 4000 psi 28 Days Flow Fill
Loveland Ready Mix 027 4000 psi 28 Days Exterior, C&G, Sidewalks, Etc.
Loveland Ready Mix 076 4500 psi 28 Days CDOT Class B & D
         
MMM CE4906-751 3250 psi 6 Hours CDOT Class E, 6 Hour
MMM CE4912-751 3030 psi 6 Hours CDOT Class E, 12 Hour
MMM FF0270 100 psi 28 Days Flow Fill
MMM FF0934-751 60 psi 28 Days Flow Fill
MMM A4335 4500 psi 28 Days Class D - Machine
MMM A4780 4000 psi 28 Days General Exterior
MMM A4785 4500 psi 28 Days General Exterior - CDOT Class D
MMM CP4740 4200 psi 28 Days CDOT Class P
MMM HE4348 3000 psi 48 Hours 48 Hr High Early