Heat-resistant cement - evaluate the material characteristics of
This special heat-resistant cement has not only positive, but also negative properties. Of course, there are not so many last, but they are. Actually with the of the negative sides of and start. The first of these is the price. Since this cement is specialized, respectively, and the price for it is higher than normal. Of course, this is not a huge difference, but with large batches it is really palpable.
The second minus is the chemical composition. It does not affect life activity, it does not affect the atmosphere, in general, it is harmless, but when interacting with some elements of the table known to all, chemical reactions are possible that adversely affect the properties of this cement.
Let's proceed to with the positive sides of , and the first one is resistance to high temperatures. Indeed, depending on the brand and type, such cement is able to withstand up to 2 thousand degrees Celsius, and special brands, which are very difficult to find, will withstand and 3,5 thousand. Agree, the figure is simply incredible.
The second plus is viscosity. For all parameters important for the construction process( adhesiveness, ductility and other), it is not inferior to conventional cement.
Another plus is the ease of cooking. You do not need to be a chemist to mix water, cement and sand. Actually, this is all you need to get a fireproof mortar for your home.
Refractory cement - preparing for work
Having decided on the use of special cement, you need to make some preparatory work that will simplify the further construction process. The thing is that heat-resistant cement does not like fat, dust, oil stains and soot. That is why the preparatory work includes degreasing and complete cleaning of surfaces.
Fat can be wiped off with a solvent or alcohol, and there is a huge amount of special fluids. Dust is cleaned with a vacuum cleaner and a damp cloth, but if there is soot on the surface, for example on bricks, then it is desirable to carefully grind them, taking off 2 mm of the brick structure itself. This will ensure the maximum heat-resistant surface.
You will need a construction tool: a drill, a nozzle mixer, possibly a concrete mixer, a trowel and, in fact, everything.
Heat resistant cement - how to handle it?
After the preparatory work, you need to start the most pouring and applying cement to the surface. The first thing is to dilute the quantity we need in strict accordance with the instructions. Heat resistant cement does not forgive mistakes, so do not rush. The main thing is full compliance. Dilute or mix it can be in a small trough, as well as in a concrete mixer. It all depends on the amount of work.
Stir, take it and pour it on the surface, which we are going to process. Using a trowel or a half-wiper, we smooth the cement, giving it a flat surface. Be sure to check the accuracy with the level.
In the case of masonry using this type of cement, a layer of 5 mm must be applied to the surface, after which we set the brick and press it firmly. Thus, the second row is also stacked, although now with a trowel we apply the mortar to the first row of bricks and necessarily to the joints between two adjacent bricks.
The main thing is not to leave cavities and carefully fill all the seams and other possible construction costs with cement. That's all, follow these rules, and your high-temperature cement will last you for dozens of years.
