830.1 General Description
This section includes the requirements for Portland cement, including Portland blast-furnace slag cement and Portland-Pozzolan cement.
830.1.01 Related References
A. Standard Specifications Section 831–Admixtures B. Referenced Documents AASHTO M 85 AASHTO M 240 QPL 3
830.2 Materials
830.2.01 Portland Cement
A. Requirements Use only Portland cements that are listed in QPL 3. Type Use Portland cement that meets the requirements in AASHTO M 85. Portland cement types include: Use High Early Strength Concrete Remaining Portland Cement Concrete *Portland cement Types I or III Types I or II *Portland cement – a hydraulic cement produced by pulverizing clinker consisting essentially of hydraulic crystalline calcium silicates, and usually containing one or more of the following: water, calcium sulfate, up to 5% limestone, and processing additions. Ensure that the Portland cement concrete meets the low alkali and the false set requirements of AASHTO M 85. Do not use cement that is damaged, partially set, lumpy, or caked. Mixing and Storing Do not mix or store different brands or types of cement in the same bin. Do not mix or store the same brand of cement from different mills in the same bin. B. Fabrication General Provisions 101 through 150. C. Acceptance See the requirements in AASHTO M 85. D. Materials Warranty General Provisions 101 through 150.
830.2.02 Portland Blast-Furnace Slag Cement
A. Requirements Use Portland blast-furnace slag cement in cement stabilization that meets the requirements of AASHTO M 240, Type IS. B. Fabrication General Provisions 101 through 150. C. Acceptance See requirements of AASHTO M 240, Type IS. D. Materials Warranty General Provisions 101 through 150.
830.2.03 Portland-Pozzolan Cement
A. Requirements Use Portland-Pozzolan cement that meets the requirements of AASHTO M 240, Type IP, with the following modifications: Limit the fly ash content to a maximum of 25 percent by weight. Limit the Pozzolan to fly ash that meets the requirements of Subsection 831.2.03. If grinding fly ash with Portland cement clinker to produce Portland-Pozzolan cement, do the following: Exclude the fineness and the loss-on-ignition requirements of Subsection 831.2.03. Ensure that the final blend of Portland-Pozzolan cement meets AASHTO M 240, Type IP requirements. Wherever the Standard Specifications allow or specify Portland cement that meets the requirements of Subsection 830.2.01, you may substitute Portland-Pozzolan cement that meets the requirements of this Subsection. If the substitute cement results in a higher cement factor than required for Type I cement, the cost of the additional cement will be borne by the Contractor. B. Fabrication General Provisions 101 through 150. C. Acceptance See the requirements of AASHTO M 240, Type IP. D. Materials Warranty General Provisions 101 through 150.
- 500Concrete Structures
- 430Portland Cement Concrete Pavement
- 439Portland Cement Concrete Pavement (Special)
- 301Soil-Cement Construction
- 315Cement Stabilized Reclaimed Base Construction (CSRB)
- 326Portland Cement Concrete Subbase
- 427Emulsified Asphalt Slurry Seal
- 450Pressure Grouting Portland Cement Concrete Pavement
Portland Cement in other states
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