Terracotta mixture is one of the few materials that is based on environmentally friendly components. The composition of this finished product contains substances such as kaolin clay and sand, as well as fireclay. It has an excellent indicator of resistance to heat. Withstands temperatures up to 1300 degrees Celsius. However, there is a small drawback - the large amount of time required to solidify a substance.
About Terracotta
What are Terracotta mixtures? These are dry solutions, ready to use. They are used for masonry objects, which will subsequently be subjected to high temperature effects. Quality and factory products of this company have two types of packaging - these are 20- and 25-kg bags. The packaging itself is a four-layer bag. It is worth noting that in the territory of the Russian Federation it is the Terracott company that is the largest supplier of mixtures used in the laying of furnaces. Their products are masonry, heat-resistant mixtures, fireclay chips, oven clay, as well as heat-resistant grout.
Rules for the use of mixtures "Terracotta"
There are several rules that must be observed when using finished products from this category:
- After the finished product has already frozen, kneading it again is already prohibited.
- It is important to remember that Terracotta mixtures are made on the basis of kaolin clay, without the use of cement, because the life of the solution is unlimited. After thickening, you just need to add water and mix thoroughly.
- Subsequent laying of the furnace from this substance should be carried out at a temperature not lower than 5 degrees.
- In the finished mixtures, various plasticizers are used that prevent the solution from drying out too quickly. On the one hand, this excludes the possibility that the finished surface will begin to crack, and on the other, it increases the time required for drying. In addition, it is possible to warm the oven made using Terracott mixtures no earlier than three days after laying.
- There are also ready-made mixtures for the arrangement of chimneys. They are specially marked.
- It is important to know that it is only 20-30 days after it has begun to be used efficiently to clad a furnace that is built using ready-made mixtures.
- A slight inconvenience may be that after the first furnace of such a furnace efflorescences will appear on its walls. However, they are easily cleaned with a damp cloth. It is necessary to wash them after the oven has cooled down.
The advantages of ready-made mixtures
The heat-resistant mixture "Terracotta" is a dry solution, which is intended for laying objects that will subsequently be exposed to heat. This solution is made using classic kiln technology. The composition of such a mixture includes kaolin clay, dried and crushed, as well as fireclay (ceramic) chips. The temperature that this mixture can withstand is 1300 degrees Celsius. It is important to know that a solution only gains strength when it is fired. And this means that after all masonry processes are completed, you must wait 48 hours. After this period, you need to melt the furnace to a temperature of 200-250C and maintain the combustion process in this state for up to 5-6 hours. In order to avoid such inconvenience as shedding the mixture after masonry, experts recommend decorative plastering or facing of the furnace.
Mix clay-chamotte "Terracotta"
The composition of this ready-made mixture includes ingredients such as kaolin clay of the highest purity, sand, as well as kaolin chamotte. Like other mixtures, this one is different in that it can withstand temperatures up to +1300 degrees Celsius, and is also an environmentally friendly dry solution.
To use this particular type of mixture, two surface types such as ceramic or fireclay bricks are recommended . In order for the mixture to take quality, it is necessary to prepare the basis for its application. To do this, completely clear the brick of possible traces of old paint, debris, dirt, dust, old plaster and other things. In addition, before applying the terracotta masonry mixture, it is recommended to keep the brick under water for three minutes.