1. Sandstone profile
sandstone block (also called sand rock) is a kind of sedimentary rocks, and named by the sand composition, its main component is Si20, Al20,, in nature is to the sea through geological change to deposition, sedimentary and lu the original sand layer of accumulation, and the terrain covered by geological change after in the process of heating, compression and form.
Natural sandstone points sea sandstone and mud sandstone two kinds, the sea of grain is thick, sandstone than mud sandstone hard, hardness is relatively large, pore ratio hard brittle, main representative species have Australia sandstone, Spain sandstone; And mud sandstone comparison is exquisite, hardness slightly soft sea sandstone. In addition, still have a kind of natural sandstone material for female ZhuZhi with inorganic powder into the sandstone, such as synthetic TaoLiKe sandstone, aubstadt jas sandstone.
2. The application of sandstone in architectural decoration and its superiority
2.1 sandstone in architectural decoration application
In recent years, as construction decoration pursue protection and healthy, texture flowery, advocating natural new consumption concept development, both healthy environmental protection and highly ornamental sandstone, in adornment the stone in a popular nice-looking alone. Can be widely applied in external decoration, floor, the door is covered,, furniture, baluster, headstones, garden stone to wait sculpture art.
The superiority of 2.2 sandstone
From decorative regard, sandstone simple and easy, straightforward, natural; Pattern change strange, like the trees in nature tree rings, lumber decorative pattern, landscape painting; Very simple but elegant, warmth, and do not break showily atmosphere, can give a person with return uncut jade to return true, near field of feeling; Together with good compression, wear-resisting characteristic, is the metope, ground adornment and profils, good varieties.
From environmental regard, sandstone is an inferior smooth stone, won't produce formed by light reflecting the light pollution, it is a kind of natural antiskid material. And marble, granite is smooth stone, it is only through the light to show adornment effect, easy to produce light kui dye.
Because of its internal structure of sandstone void fraction big characteristics, has the absorption, moisture absorption, fire prevention, matt features, this characteristic varieties adornment to absorption requirements with theater, gym, restaurants and other public places effect is ideal.
The sandstone is zero radioactivity stone, to human body without damage. Marble, granite, there is a tiny amount of radioactive lives for a long time in which to person will have subtle damage. Our country "building material radionuclide limited" (2001) GB6165 specified, the sandstone of radioactive is not included in the scope of radioactive inspection, which was based on the monitoring and its perennial standard, the great the conclusion selective. In fact, as a kind of to Si O, A1 O, primarily stone material, it is itself a kind of environmental protection, green, with the trust of building materials.
From the durability regard, sandstone outdoor not weathering, dissolves in water, and not long lichen, will not change color. Many in a 200 years since the building built with sandstone cult-favorite, shapely still.
3. Sandstone products protective processing
Dirt not only beautiful, but also let hindering the erosive sandstone metamorphic chemical composition. To prevent pollution metamorphism, facilitate scrubbed, prevent water permeability or to make sandstone more bright-coloured, can use besmear brushs protection agent method. At present the protective agent products on the market has a lot of kinds, respectively applied for the different stone. Use of protective agent with stone material must be considered when its adequate adhesiveness (and sometimes the blister), whether with stone, protective agent react around climate. Protective agent by use solvent can be divided into propylene base emulsions (water-based), silicon and solvent (chemicals) 3 kinds. Silicon-based protective agent, compared with protective agent, aqueous protective solvent effects of agent of colour is smaller.
3.1 indoor protective agent
For the granularity of sandstone, the good properties of solid, must keep their degree of breathing freedom. Normally, indoor humidity is stable, is not susceptible to weather, the changes in temperature and humidity effect. So, generally no expansion. Therefore, indoor basically can choose any kind of protective agent. It should be noted, protective agent after a period of use must besmear again ask that same with paint.
Meanwhile in indoor use of protective agent must advance considering the following some situation: whether facilitate wipe, prevent wash wear and prevent the surface gets food or oily be soiled pollution, facilitate repeated besmear to brush etc.
3.2 outdoor protective agent
Outdoor use of protective agent should pay attention to many matters, in a formal besmear should be fully consider the following before environment:
If the sand and gravel of sandstone placed above the sand and gravel, because water conservation rate is high, had better not use protective agent.
If the stone placed in cement the structure, should choose can make stone hold breath (namely a few moisture permeability to stones and through the steam of protective agent Sandstone Tile), it is very important. Usually propylene base emulsions (water-based) protective agent used in outdoor effect more prominent.
Outdoor use protective agent should have the advantages of easy to clean, can freely use hose or high-pressure washing machine flush, and Saul brush, polishing, processing, and also can to natural fade and besmirch bleach.
3.3 sandstone products to storage and maintenance
Dirt and defile not only interferes with the beautiful and contain let sandstone metamorphic erosive chemical composition. Pollution is during the construction or maintenance produced during, must be treated differently. Generally speaking prevention is more important than cleaning, daily long-term maintenance effect better than the axon acute cleaning. Can through the correct design and material selection, careful construction and maintenance to reduce and prevent dirt stain. So-called right design, namely note happened to sandstone products under the things pollution.
Products on graphics processing, foreign tilted wall cap rocks, use wall cave drainage no require partial, water inflow structural parts confined Spaces, water flows through concrete and glass or other building material surface and flow to sandstone surfaces are extremely easily to the sandstone products cause pollution. Under special circumstances, should choose match with stone material properties of materials. For example, as a wall lining when using, must on the elevator positive and lift switch shielding near and furniture etc. Not compatible with materials to produce the combination between pollution. (for example, the liquid leakage of sandstone car.) Laying in bridge deck or steps, the permeability of the mortar will become coal sex pollution. Error cleaning process after the juncture is one of the important reasons.
The correct treatment measures include careful attention to transportation, storage, construction and so on various links. Thin panel vulnerability, and not only crunchy easily infected with besmirch. Must pay attention to the mortar, the coating, the protective layer point stains, scaffolding rust and mechanical lubricating oil etc stubborn stain.
During the construction from the shelf life as far as possible, the stone material must end with plastic layer or antifouling cover cloth cover.
Thoroughly understand the service process may be due to pollution caused by human body contact or the pollution of internal and external. Must as far as possible and pollution, often eliminate dirt isolation. In polluted areas, using appropriate paint cleaner and architectural besmirch. Of stone material for cleaning, should moderate and prevent the environment and homework personnel harm caused loss of stone material itself or. Consider the cost factor, cleaning should economic and effective. Therefore, must be familiar with the following matters:
1) cleaning convenient method and places;
2) when cleaning of stone material cause loss feel ability;
3) surface level of pollution;
4) if they must be cleaned.
3.3 sandstone of mesa protection
Each stone have their own weakness, but one of the weaknesses of sandstone is porous. This porous structure makes moisture easy penetration into it. Once the sandstone absorbed moisture will cause the discoloration and chemical coloring. These spots will become an inseparable part of sandstone. Therefore, the sandstone need special care.
Do not use any type of cleaner or clean technology. Cleaner misuse may lead to serious consequences. Therefore, in use, testing before to check the label on the cleaner. If you find some adverse reaction to immediately stop using it.
If sandstone mesa, can adopt some already sealed the cleanness of simple ways to protect it. Seal is very important protection steps. A seal sustainable for many years. In use should be especially careful of sandstone mesa.
Cleared spillage. Do not let its long legacy in sandstone mesa. Clean sandstone mesa should choose when neutral cleaner or colorless, odorless and detergents. Can also choose to use mild dishwashing liquid. Do not use acidic cleaner. Will this cleaning fluid corrosion sandstone polished surface.
Often flush sandstone mesa and grouting place. Don't put the cleaner in sandstone mesa. If no prior clean soft bristle brush to brush off scraps available. If besmirch brush off, don't scrape. Repeatable clean.
Occasionally in-depth clean. Deep clean also need to use neutral cleaner. Can buy designed for deep clean design cleaning tools. Soft bristle brush to remove stubborn available waste. Cleaner sprinkle don't erased immediately. Finally thoroughly flush mesa, this step is very important.
Sandstone of mesa protection note the following Suggestions:
1) sandstone cleaner must be neutral.
2) cleaners cannot contain acid or citrus acid. These components can damage the sandstone surface gloss.
3) use with metal accessories vacuum cleaner carefully. These accessories can scratch sandstone surface.
4) never trial scrubbing powder or scrub creams, these products contain abrasive surface scratch sandstone.
5) avoid using tray in the glass.
6) don't directly onto the high temperature vessels of sandstone mesa. Best pad mat.
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