Products of various shapes are made of stone and glass mineral wool, finish and performance parameters as well as mechanical properties selected for a specific application.
Division of mineral wool products:
• Filling (W) – apart from their own weight, they do not carry any other loads. They isolate, …
Perlite is a white or light gray aggregate, produced in the process of expanding from mineral raw materials of volcanic origin. This process involves roasting the raw material at a temperature of 950 ° C to 1100 ° C, which results in a 20-fold increase in grain volume. The chemical composition of perlite is in the main …
Basement waterproofing can be replaced by making the basement walls of airtight concrete. It is a concrete with a low pore content, from fine aggregate (16-32 mm), with a cement content of at least 350 kg / m3 and with sealing additives.
Watertight concrete structures …
There are many methods of preventing water from entering a building.
Foundation insulation, depending on soil and water conditions, can be designed to be anti-water (heavy) or anti-moisture (light)
Surface waterproofing should be protected against mechanical damage. Such protection may be a brick wall …
Grouting compounds (grouting) they are used to fill gaps between ceramic tiles, stone ones, glass etc..
Types of grouting compounds:
• Ordinary cement mortars – Dry cement mixtures, modifying additives and fillers. The texture and allowable width of the joint depend on the type of fillers used. …
Metals in construction:
• Aluminum is a silvery white metal, lekki, malleable, fusible, well conductive to heat and electricity, corrosion resistant. In construction, it is used to make construction elements (aluminum profiles) windows, door, winter gardens, fireflies, canopies and foil …
Light concrete – Porous artificial aggregates are used to make lightweight concretes (expanded clay, glinoporyt, metallurgical pumice stone, granulated slag). The type of aggregate is largely determined by the location of the plant. Expanded clay is most often used. Blast and Portland cement are used as a binder.
Division …
Artificial aggregates are obtained from heat-treated rocks and industrial waste. The use of a specific type of artificial aggregate depends to a large extent on their production in a given region of the country.
Criteria for the division of artificial aggregates:
1. Due to the type of rock raw material …
Abrasive materials
What wall materials are used most often?
The most common are sandpaper, canvases, fiber, poem, pastes and flour. Painters and varnishers often use sandpaper. Abrasive cloth is relatively expensive and therefore painters use it less frequently. Abrasive fiber …
The concrete covering the reinforcement bars is chipped on the previously painted balcony railings. Please list the necessary steps to strengthen the whole, having regard to the materials needed
These steps are as follows:
1) exposure of damaged reinforcement;
2) cleaning damaged reinforcement with quartz-free abrasive;
3) primer painting …