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Engineering

Updates:#

3/13/2023

Update Connell asphalt mix design approvals.

2/28/2023

Updated concrete mix design approvals.

Approved Asphalt Mix Designs#

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

Residential All Lifts

1.5" / 3" 3/13/2024
Connell 10250 SX 75 0 Suncor 64-22

Residential All Lifts

1.5" / 3" 3/13/2024
Connell 11050 SX 75 20 Suncor 64-28 (modified)

Arterial/Major Collector/Industrial/Commercial Top Lifts

1.5" / 3" 3/13/2024
Connell 12050 SX 75 20 Suncor 58-28

Residential/Minor Collector All Lifts

Arterial Lower Lifts

1.5" / 3" 3/13/2024
Connell 20150 S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

2" / 4" 3/13/2024
Connell 20250 S 75 0 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial
Lower Lifts

2" / 4" 3/13/2024
Connell 20350 S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

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

Arterial/Major Collector/Industrial/Commercial Top Lifts

2" / 4" 3/13/2024
Connell 22050 S 75 20 Suncor 58-28

Residential/Minor Collector All Lifts

Arterial Lower Lifts

2" / 4" 3/13/2024
                   
Kehn 751221 S 75 20 Jebro 64-22

Residential/Minor Collector All Lifts

Arterial/Major Collector/Industrial/Commercial Lower Lifts

2" / 4" Expired
Kehn 751421 SX 75 0 Jebro 64-22 Residential All Lifts 1.5" / 3" Expired
                   
Martin Marietta

1243-5462

SX 75 20 Suncor 64-22 Residential All Lifts 1.5" / 3" Expired
Martin Marietta

1253-5473

SX 75 20 Suncor 64-28 (modified) Arterial/Major Collector/Industrial/Commercial Top Lifts 1.5" / 3" Expired
Martin Marietta

2223-5492

S 75 20 Suncor 58-28

Residential/Minor Collector All Lifts

Arterial Lower Lifts

2" / 4" 4/20/2023
Martin Marietta

2243-5493

S 75 20 Suncor 64-22

Residential/Minor Collector All Lifts

Arterial Lower Lifts

2" / 4" 4/20/2023
Martin Marietta

2253-5494

S 75 20 Suncor 64-28 (modified) Arterial/Major Collector/Industrial/Commercial
Top Lifts
2" / 4" 4/20/2023

 

Approved Concrete Mix Designs#

Material Supplier Mix ID Strength Age Intended Use Expiration Date
Aggregate Industries 6406150 4000 psi 28 Days Exterior Flat Work, Etc. Expired
Aggregate Industries 6450100 4500 psi 28 Days Exterior Flat Work, Etc. Expired
Aggregate Industries 6550800 4500 psi 28 Days Fast Set Expired
Aggregate Industries 7456120 4500 psi 28 Days As Required CDOT Class B/D/P Expired
Aggregate Industries 7456122 4500 psi 28 Days Machine Placement Expired
Aggregate Industries 9456023 4500 psi 28 Days As Required CDOT Class B/D/P 8/1/2024
Aggregate Industries 9456627 4200 psi 28 Days CDOT Class E / 24 Hr High Early Expired
           
Bestway Concrete 4531495 4500 psi 28 Days CDOT Class B/D/P Expired
Bestway Concrete 4531275 4500 psi 28 Days CDOT Class B/D/P Low Slump Expired
           
Burnco 45VN31C4G 4500 psi 28 Days Light Pole Base 8/12/2024
           
Johnstown Ready Mix 021 Min. 50 psi 28 Days Flow Fill In Review
Johnstown Ready Mix 027 4000 psi 28 Days Exterior, C&G, Sidewalks, Etc. 1/30/2025
Johnstown Ready Mix 076 4500 psi 28 Days CDOT Class B & D 1/30/2025
           
Loveland Ready Mix 021 Min. 50 psi 28 Days Flow Fill In Review
Loveland Ready Mix 027 4000 psi 28 Days Exterior, C&G, Sidewalks, Etc. 1/30/2025
Loveland Ready Mix 076 4500 psi 28 Days CDOT Class B & D 1/30/2025
           
MMM FF0150 150 psi 28 Days Flow Fill Expired
MMM FF0934 100 psi 28 Days Flow Fill Expired
MMM A4780 4000 psi 28 Days General Exterior Expired
MMM A4785 4500 psi 28 Days General Exterior - CDOT Class D Expired
MMM CD4575 4500 psi 28 Days CDOT Class B/D/P Hand Mix Expired
MMM CD4715 4500 psi 28 Days CDOT Class B/D/P Low Slump Expired
MMM HE4348 3000 psi 48 Hours 48 Hr High Early Expired
MMM HE5224 5000 psi 24 Hours 24 Hr High Early 11/23/2023
           
On-Demand QSFF080S 50 psi 28 Days Flow Fill 3/1/2025
On-Demand QSFF2500S 2500 psi 28 Days Temporary Cap 3/1/2025
On-Demand CDP4504C 4500 psi 4 Hours CDOT Class D/P In Trial
On-Demand CDP4504R 4500 psi 4 Hours CDOT Class D/P In Trial
On-Demand CDP4524HR 4500 psi 24 Hours CDOT Class D/P 3/1/2025
           
SRM Concrete 45260 4500 psi 28 Days Machine Placement 2/8/2025
SRM Concrete 45262 4500 psi 28 Days Hand Curb Mix 2/28/2025
SRM Concrete 45321 4500 psi 24 Hours 24 Hr High Early 2/28/2025
SRM Concrete 927 100 psi 28 Days Flow Fill In Review