The main reason for the popularity of white cement is that it can create a wide variety of attractive shades of colours, which can be used in decorative works. Besides, its properties such as whiteness, high strength and low heat of hydration make it suitable for special architectural and construction applications where design considerations are important.
The first use of white cement was in England during the late 19th century, when it was mixed with coloured cements to produce brightly coloured mortars. The widespread use of white cement began in the 1930s and 1940s. As a result of growing environmental awareness, the increased use of white cement in the early 1980s led to stringent regulations controlling the emission of dust during its production. As a result, modern white cement plants are among the cleanest in the world and their processes are very well controlled.
The usage of white cement is popular in the west and many other countries, though it costs more than grey cement. In India, people are still not very comfortable using it.
The comparison between grey and white cement is made in terms of their prices. But what’s not generally known is that the price difference between them is a mere Rs 4-5 per bag, which doesn’t make much of a difference in the overall cost of construction.
So why is white cement so popular? The answer lies in its aesthetic appeal. White cement allows the construction of buildings that have an aesthetic appeal and can also withstand atmospheric conditions better than grey cement buildings. The colour of white cement can be maintained for a longer time than grey cement. Grey cement has to be painted after sometime to maintain its look and feel. So, if you plan to build a building that will not need painting for at least 5-6 years, white cement is the best option for you.
The white cement is a type of cement with particular properties.The white cement is produced from raw materials containing little iron oxide (Fe2O3), which gives it its whiteness.
White cement has the richness of colors, and it provides aesthetic beauty when combined with colored aggregates, marble powder or the use of different painting techniques.
White cement is used in decorative works, especially in countries where there is a tradition of using this type of cement.
So, what are advantages of white cement?
The properties that make the white cement unique are:
1-the ability to produce any color with all design features.
2-the strength and durability of concrete.
3-the quality of the final product in terms of smoothness and finish.
4-Low heat generation during hardening.
Generally speaking, the production of white cement is more difficult than that of ordinary Portland cement. The degree of difficulty mainly lies in the selection and processing of raw materials. Due to its high quality requirements for raw materials, the cost is higher than that of ordinary Portland cement. And because of this, white cement is used in small quantities in the decoration process and is only suitable for decorative projects with high aesthetics and high quality requirements.
White cement has excellent physical properties and chemical properties, so it is widely used in building materials industry. As a kind of decorative material, it has a large demand in building decoration industry. Because of its good performance, people’s demands are more and more big. As a result, white cement manufacturers began to manufacture white cement products on a large scale to meet market demand. White cement with different quality levels can be produced by using different technologies and equipment, different grades of raw materials and different formulas.
The White Cement is a special product, produced with high quality raw materials and a specific manufacturing process.
The main component of white cement is the aluminium trioxide whose proportion may vary between 3% and 8%. It has to be free from iron oxide since it would give the cement a grey colour.
Due to its pure white colour, white cement is widely used in decorative works (tile adhesives, mortars, …) and in restoration works where it is necessary to respect the original colour of the work.
In addition to its use in decorative works and restoration works, white cement can also be used for architectural concretes in which it is desired to maintain the original tone of the raw material or other light colours.
White cement refers to the white cement production process using raw materials with a low iron content (below 0.2%) and whitening at high temperature. The whiteness of white cement is determined by the Fe2O3 content and the degree of whiteness depends on the Fe2O3 content.
White cement is a kind of special cement, which has more advantages than ordinary gray Portland cement in many aspects such as performance, appearance and quality. It has the unique characteristics of high strength and fast hardening, so it is also called rapid hardening cement. In contrast to ordinary cement, white cement not only has high strength and good durability, but also has high whiteness and strong decorative effect, which can make products appear more beautiful and delicate.
Portland white cement is a premium product, often used in decorative architectural applications. Today, builders and concrete contractors have a wide range of white cement products from which to choose. The three most common types of white portland cement sold in the U.S. are Type I, Type I/II and Type II.
Unlike gray portland cement, white portland cement does not contain any iron or manganese, two elements that can cause discoloration when present in high levels. To make white cement, the raw materials used must be free of iron and manganese oxides; otherwise, they would turn the resulting concrete “gray.” For example, no quartzites (a rock made up of sand grains) containing ferrous iron oxides are allowed because they would affect color.
White Portland Cement Types
Type I is a general purpose cement suitable for all uses where the special properties of other types are not required. It has moderate sulfate resistance and low heat of hydration.
Type I/II is used primarily for decorative purposes where high finish is desired and for locations that are exposed to light foot traffic or normal weathering without freezing. It has moderate sulfate resistance and moderate heat of hydration.
Type II is used where strong sulfate