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The creation of modern Portland cement is a multi-stage and complex process. Although not all stages need to be completed at one location, each stage is necessary for the ultimate creation of the final Portland cement product. In general, Portland cement is made by heating limestone with small quantities ofother materials such as clay to 1450°C in a kiln. |
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Cement is a material that sets and hardens independently, and is used to bind other materials together. Throughout history and through to the modern day, cement is primarily used in construction and engineering. Today, within the realm of construction, Portland cement, the main type of cement in use, is the basic ingredient of concrete, mortar and most non-specialty grout. |
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Although only certain types of cement are commonly utilized today, there are several different types of cement that can be created. Various types of cement are possible by blending different proportions of gypsum, clinker, and other additives. Cements that are used for construction fall into two main categories based on cement properties, hydraulic or non-hydraulic. In addition to the two main cement forms, there are several different forms of hydraulic cement. Of the many varieties of hydraulic cement, the most commonly used cement today is Portland cement.
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Early Cement
Throughout history, cement has played a key role as a construction material. Throughout the world, the use of cement in large civic works can be traced from antiquity through modern times. The earliest construction cements, which would today be classified as non-hydraulic cements, were developed as civilization and agricultural communities first began to develop thousands of years ago. |
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