Portland Cement

​SAC has become one of the world’s leading quality driven manufacturers of​ Portland Cement.

​​​​​What is Portland Cement?

Portland Cement is a “hydraulic cement (cement that not only hardens by reacting with water but also forms a water-resistant product) produced by pulverizing clinkers consisting essentially of hydraulic calcium silicates, usually containing one or more of the forms of calcium sulfate as an inter ground addition.” Clinkers are nodules (diameters, 0.2-1.0 inch [5-25 mm]) of a sintered material that is produced when a raw mixture of predetermined composition is heated to high temperature.​​​

Discover how ​​Portland cement is made with Portland Cement Association’s Interactive Flash Tour.​

We produce:

• AASHTO Type I-II & ​III Portland Cement
• ASTM Type I-II & III Portland Cement with Limestone Addition

Usage

Type I-II: Type II portland cement is used where protection against moderate sulfate attack is necessary. It is used in normal structures or elements exposed to soil or ground waters where sulfate concentrations are higher than normal, but not unusually severe. Type II cement has moderate sulfate resistant properties because it contains no more than 8% tricalcium aluminate (C3A).

Type III: Type III portland cement provides strength at an earlier period than normally expected. For example, strength may be achieved in a matter of days as compared to the typical expectation of 28 days. Type III is chemically similar to Type I cement, except that its particles have been ground finer. It is used when forms need to be removed as soon as possible or when the structure must be put into service quickly. In cold weather its use permits a reduction in the length of the curing period.

Exceeds

The standard chemical and physical requirements of the following specifications: ASTM C 150 cement and AASHTO M 85 cement. This cement also meets all applicable ALDOT, FLDOT (Florida Section 921), GADOT, NCDOT and SCDOT specifications.

Concrete Technical Topics

Learn more about concrete with National Ready Mix Concrete Association’s Concrete in Practice Series. National Ready Mix Concrete Association Concrete In Practice is a series of one-page information sheets on important technical topics, written in a non-technical “What, Why and How?” format. Give them to contractors and they’ll know that you deliver quality and value and make them a part of your promotion and education program.