What Is The Difference Between Lime Mortar & Cement Mortar?

A lime mortar tends to be whiter in colour, whilst a greyer shade would suggest it's most likely Portland cement Unlike cement mortar, lime mortar is permeable and allows vapour to pass through - a healthier option for humidity regulationLime sets at a much slower rate than cement mortar, making it far more workableCement also tends to be more brittle and more likely to crack

The first step of the cement manufacturing process begins with mining limestone and other raw materials. After quarrying, the rock is crushed. The crushed rock is then combined with other minerals, like clay and iron ore, in a cement kiln. Cement kilns are most often fuelled by coal, however, the use of alternative fuels in cement kilns is now widespread and increasing.The resulting substance of heating these raw materials at high temperatures is called clinker. Clinker is ground up by cement plants into a fine powder and mixed with gypsum to produce cement.

What Is The Difference Between Hydraulic Cement & Non-Hydraulic Cement?

Hydraulic cement, the most popular of both classifications, is the most favoured material due to the fact that it is easily workable and dries quickly. The ingredients—a mixture of limestone, clay and gypsum—are combined at high temperatures to manufacture a product that sets and hardens rapidly. While the first form of cement invented was non-hydraulic, it is not as practical or convenient for most applications. This type of cement includes lime, gypsum plasters and oxychloride, which means that it does not set when exposed to water like hydraulic cement. In fact, this kind of cement needs dry conditions to set at all.

What Is The Portland Cement Association?

Portland Cement Association is a non-profit organisation that promotes the use of Portland cement, the most common type of cement used in concrete production.PCA conducts and sponsors concrete research, and plays a role in setting cement manufacturing standards.

What Is White Portland Cement?

White ordinary Portland cement (WOPC) is essentially the same as regular grey Portland cement, with the exception of its striking whiteness. This colour is achieved through adjustments to the production process, which results in a higher cost compared to grey cement. White Portland cement is suitable for architectural uses in cast stone, architectural concrete, paving slabs, street furniture and terrazzo applications.