Szlifowanie Parapetów
Nowe Lastryko
Szlifowanie klatek schodowych
Profesjonalne usługi zwiazane z renowacją posadzek wykonanych z lastryka i kamienia
Czy warto szlifować stare lastryko, a może przykryć je innym materiałem? Jakie uszkodzenia da się naprawić? Dlaczego warto wybrać szlifowanie posadzek? Ile to wszystko kosztuje ?
Proszę dzwonić 797176566
Zajmujemy się renowacją posadzek lastrykowych, betonowych, oraz kamiennych, naprawą ubytków, impregnacją oraz polerowaniem powierzchni, krystalizacją marmuru, a z racji wielkiego wachlarzu możliwości naszych maszyn, wykonujemy również inne prace związane z tematyką przygotowania posadzek :
-zrywanie warstw klejowych -zapraw cienkowarstwowych, farb
-matowienie powierzchni pod inne rozwiązania posadzkowe
-mechaniczne mycie posadzek
Polecamy się również jako wykonawcy pięknych posadzek terrazzo w klasycznym stylu,
Mimo tak powszechnego występowania posadzek lastryko w naszym kraju(urzędy państwowe, budynki użyteczności publicznej, obiekty militarne), świadomość ludzi na temat samego materiału z jakiego jest ono wykonane, oraz jego możliwości w temacie utrzymania czystości w budynku, walorów estetycznych, a także wytrzymałości wciąż jest bardzo mała, co niestety skutkuje pokrycie powierzchni na przykład glazurą, które dla osób odpowiedzialnych za utrzymanie budynków w należytym wyglądzie wydaje się jedynym dostępnym rozwiązaniem. Jest to też w pewnym stopniu zrozumiałe, gdyż w bardzo wielu przypadkach posadzki lastryko były wykonane w pośpiechu, bądź bez odpowiednich narzędzi do jego wykończenia co skutkuje tym, że wiele z nich po wieloletnim użytkowaniu wygląda przynajmniej nieciekawie łagodnie rzecz biorąc i jest postrzegana jako element do wymiany. Oczywiście jest to w pewnym sensie uzasadnione, lecz nie musi tak być, wystarczy tylko kilka kroków by posadzka lastryko, nawet po kilkudziesięciu latach użytkowania wyglądała jak nowa i cieszyła nasze oczy na następne -dziesiąt lat.
Terrazzo, terrazzo, or the English name terrazzo, is an attempt to make parts of the stone whole again. They are created by mixing hard stone (basalt, marble, etc.) in an appropriate amount with cement. Such a mixture creates a surface that is hard and strong on the one hand, and on the other hand, it is possible to grind it and adapt it to the conditions and needs that are required under given conditions. This means that they can be treated as an attempt to eliminate the disadvantages of a stone slab, i.e. difficulty in processing and its cost, using the maximum of what is given to us by stone bodies - i.e. high hardness and resistance to external conditions or the resulting hardness from the very characteristics of the rock that makes up the slab of stone.
Terrazzo cannot be confused with concrete - the latter consists of cement, gravel and sand, or more broadly, a filler with a granularity of usually up to 2 mm. The most common filler is river sand or dug sand, while gravel is made of stones of various origins from sources similar to sand.
In order for terrazzo to be made properly and to fulfill its role, it is necessary to meet several conditions:
use of the appropriate quality and quantity of stone, called circulation due to grit granulation,
use of appropriate quality and quantity of cement.
The so-called KNRs, i.e. Catalogs of Material Inputs, describing certain basic principles, conditions and parameters of the consumption of specific materials for the production of a unit of an element or product. In order for terrazzo to be sufficiently firm and strong, three basic things must be met:
the minimum thickness of terrazzo is 25 mm,
consumption of grit per 1 m2 of terrazzo with a minimum thickness of 40 kg,
cement consumption per 1 m2 of terrazzo with a minimum thickness should be 20 kg.
How should the three conditions be understood?
Terrazzo thicknesses less than 25 mm may not be fit for purpose for a variety of reasons. Its strength is then insufficient, it can "evaporate" as a result of external factors such as precipitation, temperature and its changes. It will simply be a performance inconsistent with the art of construction.
The term "grit" should be understood as a hard stone such as the aforementioned basalt or marble with a fraction usually up to 10 mm. Basically, in practice, two fractions are used - from 2 mm to 4-5 mm or from 4-5 mm to 8-10 mm. The thickness of grain, stone, etc. is always expressed in mm, which means that when you hear "eight", you should understand grit with a fraction of up to 8 mm - usually it is 4-8 mm grit. The grain thickness depends on what we want the terrazzo to be and what the surface is for. Usually the coarser fraction is used when the terrazzo is to be made "sharp", the finer - when the surface is to be polished "smooth".
"Sharp" means that the surface made of terrazzo is not smooth, and the pebbles protruding above the surface will only be slightly sanded to keep their porosity.
In the "smooth" version, the aim is to ensure that the entire surface is smooth and leveled in the desired way. After this process, there are usually delicate cavities, i.e. places where the machine not only evened out the pebbles, but also pulled it "from the inside". Such places should be supplemented either with the cement used to pour the terrazzo or with a mixture of cement and fine grain with a granulation of up to 2 mm (so-called flour) of the stone, which was used in the production process.
The time when you need to start grinding determines the quality and brand of the cement used, because grinding too fresh terrazzo will destroy it, and too hard - will only significantly extend the surface leveling process and make it more difficult.
The color of terrazzo, or better the color impression, or "light-dark", depends on the amount of light and dark grit used. When using gray cement, due to its color to get more or less the typical gray, the amount of white to gray stone is usually 3: 1 or 4: 1.
KNRs only talk about the amount of cement. In the old days, people tried to use cements without additives - for very simple reasons. The first was a quick initial strength gain that allowed for a quick "emergence" with the grinding process. The second - due to the lack of additives - the non-appearance of various additives such as dust and other "surprises" that can be found in such cement on the surface of terrazzo. At present, such pure Portland cements are designated CEM I.
Due to the fact that terrazzo is so-called artificial stone, it is necessary to use in unfavorable conditions (weather conditions, aggressive environment) not cement brand 32.5, but stronger - 42.5 or 52.5. To see how durable a properly made terrazzo is, it is enough to walk through some large-panel skyscrapers, through old tenement houses, where in many cases floors or stairs inside communication routes are made of terrazzo, which last time was somehow conserved. years back, and most often not at all.
The quantity, type and quality of cement play a huge role. This is for a number of reasons:
The amount of cement that is used for terrazzo directly depends on its quality and the thickness of the grit used.
The type of cement, i.e. white or gray, allows us to dye the poured surface or not, as well as obtain (or not) a relatively uniform white (natural) terrazzo color. The gray of the cement will basically dominate any pigment that can be added to the cement, except for deep blacks or very dark "smoky" shades. Otherwise, it is necessary to use white cement. In combination with the natural colors of the stone used, it allows you to get really interesting color shades, including the coloring of certain zones that are to fulfill their specific tasks (e.g. no entry), without the need for bothersome painting of appropriate lines.
The better the quality of the cement, i.e. the stronger it is (its brand is higher than 42.5), the less it can be used to obtain the necessary terrazzo strength. How much less it can be used is related to the so-called the surface according to Blaine, i.e. the parameter that tells what the surface is after the distribution of all cement grains in a unit of mass. It must be large enough to easily connect all the pebbles in the mass unit of the mixture. The larger it is, the finer the ground is the cement. For example, if we use 52.5 cement, the actual results of which are around 70.0, this amount may be significant.
The last parameter is the thickness of the grit grain that is used to make the terrazzo. The finer the grain, the more cement is needed for a given element or surface to have the desired strength.
Remembering these few rules, you can make the terrazzo look really great. It should also be remembered that a well and properly made terrazzo, after full grinding, should be characterized by the fact that the stone sticks to the stone, while the cement acts as a joint and at first glance you can see it as little as possible.
The main profile of our company is renovation of terrazzo floors, mainly carried out
in blocks of flats and tenement houses, but also in single-family houses and apartments.
As part of the renovation of the floor, several services can be distinguished, which are performed depending on the type of order, namely:
- milling and then grinding with the use of appropriately selected gradations of grinding discs ( until the floor is mechanically polished)
- strengthening the floor surface using agents that increase the resistance of terrazzo to external factors and chemicals
- polymerization of floors
- and impregnation properly prepared floor surfaces
- repair of cavities and cracks on floors and stairs
- reconstruction of damaged floor fragments
- applying, supplementing, reconstructing terrazzo plinths
Additionally, we deal with:
- mounting system doormats at building entrances
- renovation of smaller terrazzo or stone elements such as window sills
Thanks to the use of professional equipment, we minimize the spread of dust generated during grinding
We also build completely new decorative floors, at the same time systematically developing the range of our services in this area by looking for new technological solutions and color patterns.