1. Sandstone Introduction
Sandstone (also known as sand rock) is a sedimentary rock named by sand constitute its main ingredient is SI20, Al20 in nature is the result of geological changes in the sea to the deposition and the land to the deposition, the original accumulation of a large number of sand layer terrain masked by geological changes in the process of heating and pressurizing is formed.
Natural sandstone sub-sea sandstone and siltstone two, relatively coarse particles of sea sand, hardness harder than siltstone, porosity, more rigid, the main representative varieties Australia sandstone, sandstone Spain; and siltstone delicate, hardness slightly soft sandstone in the sea. In addition, there is a natural sandstone material as the female parent the inorganic powder cast made of artificial sandstone, such as the Doric sandstone, Ao Boya sandstone.
Sandstone architectural decoration and its advantages
2.1 sandstone architectural decoration
In recent years, the pursuit of environmental health with the architectural decoration, colorful texture, respect for nature, the development of the new concept of consumption, environmental health and very decorative sandstone, a decorative stone alone pretty highly sought after. Can be widely used in interior and exterior decoration, floor, door pockets, window cover, furniture, railings, headstone, courtyard stone carvings.
2.2 sandstone superiority
Decorative terms, sandstone simple, generous, rough, natural; peculiar changes in the pattern, as the nature of tree rings, wood pattern, landscape painting; very simple and elegant, cozy yet luxurious atmosphere, to give people back to nature, close to the mountain feeling; coupled with good compression, wear characteristics, wall, floor decoration and the profile of a good variety.
In terms of environmental protection, the sandstone is a matt stone is formed due to light reflection and light pollution, does not produce a natural non-slip material. Marble, granite is smooth stone, only through light show decorative effect, prone to loss stained light.
Sandstone porosity because of its internal structure characteristics, sound absorption, moisture absorption, fire, matte characteristics, varieties of decoration to this feature with sound absorption requirements theaters, stadiums, hotels and other public places achieved very good results.
Sandstone zero radioactive stone, the human body without harm. There are traces of radioactive marble, granite, and long life in which the personal there will be subtle damage. Of radionuclides in building materials Limited (GB6165-2001) clearly defined, the radioactivity of the sandstone is not included in the range of radioactive test, which is based on the year of monitoring, as well as the preparation of the standards made by a large number of spot checks concluded. In fact, as a Si O A1 O, the main stone, it is an environmentally friendly, green, rest assured that use of building materials.
In terms of durability, sandstone outdoor weathering, does not dissolve in water, no moss, will not change color. Built with sandstone building in a hundred years ago to the present style remains the lingering charm.
Sandstone products protective treatment
Dirt not only impede the appearance and the aggressive chemical composition containing sandstone deterioration. To prevent the pollution of deterioration, easy to scrub, to prevent water penetration or to more vivid Sandstone, brushing repellant. Repellant products currently on the market there are many, each for a different stone. Must take into account using repellant and stone adhesion (sometimes blisters), reacts with the stone, repellant around climate. Repellant propenyl emulsion (water-based), a silicon and a solvent using a solvent can be divided into three (chemicals). Compared to silicon-based protectants, solvents repellant, water-based protectants color small.
3.1 indoor protectants
Sandstone as a particulate solid, preferably permeable, must maintain a certain degree of breathing freedom. Under normal circumstances, the indoor humidity is relatively stable, not easily affected by weather, cold and warm and humid. Therefore, the general does not flex. Therefore, indoor basically can choose either a protective agent. It should be noted that repellant After a period of use shall be re-brushing with paint.
Repellant for indoor use must be made in advance taking into account the following situations: easy to wash Sassafras, to prevent wear and tear, to prevent the surface from being food or grease contamination, easy to repeated brushing.
3.2 Outdoor Protectant
Outdoor use repellant to pay attention to the many issues before brushing should take full account of the following environments:
The sandstone is placed on top of the sand and gravel, sand and gravel moisture retention rate, not the best repellant.
If the stone is placed in the cement structure, we should choose the stone can keep breathing (ie, a small amount of moisture penetrate into the rocks and then through the steam volatile) repellant, it is critical. Usually the propenyl emulsion (water-based) repellant for outdoor effect is more prominent.
Outdoor repellant have the advantages of easy cleaning, free washing machine hose or pressure washing, sweeping brush, polishing, processing, in addition to natural fading and stains bleaching.
3.3 sandstone products storage and maintenance
Dirt and contamination not only impede the appearance and the aggressive chemical composition containing sandstone deterioration. Pollution during construction or generated during the maintenance, must be treated differently. In general preventive cleaning is more important than the daily long-term maintenance is better than sudden acute cleaning. By proper design and material selection, careful construction and maintenance to reduce and prevent soil stains. The so-called proper design, that is, pay attention to the following things occur sandstone products pollution:
Planar processing products, the external tilt wall cap stones, the use of the walls of the cave drainage does not require part into the narrow waterway at the structural part of the flow of water through the concrete, glass or other building materials surface and flow to the sandstone surface easily sandstone products pollution. Under special circumstances, should be chosen to match the material nature of the stone. For example, when used as a wall lined with must be on the front of the elevator and lift switch near furniture protection. Are not compatible between the material composition and prone to contamination. (For example, car sandstone surface liquid leakage.) Permeable mortar will be laid on the deck or ladder coal pollution. The seams in error after the cleaning process is also an important reason.
The correct approach, including careful attention to transportation, storage, construction and other aspects. Not only crunchy wearing thin paneling, and very easy spotting. You must pay attention to the mortar, coatings, protective layer dot blot, scaffolding rust and mechanical lubricants and other stubborn stains.
From the storage period to the end of the construction period, the stone must as far as possible with a plastic layer or stain drop cloths to cover.
Fully understand the entire service process may be due to contamination or human exposure to pollution caused by internal and external. As closely as possible sources of pollution must be isolated, often to remove dirt. In the contaminated areas, the use of appropriate coatings and construction stains with a cleaning agent. Stone cleaning, should be appropriate to prevent harm or loss caused by the stone itself on the environment and workers. Taking into account the cost factor, cleaning should be cost-effective. Therefore, you must be familiar with the following:
1) cleaning convenient and places;
2) Cleaning the stone caused the loss of the ability to feel;
3) the degree of contamination of the surface;
4) it must be cleaned.
3.3 sandstone countertops protection
Each stone has its own weakness, a weakness of the sandstone is porous. This porous structure allows moisture to easily penetrate. Once the sandstone absorbed moisture will lead to discoloration and chemical coloring. These spots will become an integral part of the sandstone. Therefore, sandstone require special care.
Do not use any type of cleaner or clean technology. Improper detergent usage will lead to serious consequences. Before use, test, check the label on the detergent. If you find that some of the adverse reaction stop using it immediately.
If the sandstone countertops have been sealed, some simple cleaning methods can be taken to protect it. The seal is very important to protect the step. The primary seal for many years. Be extremely careful in the use of sandstone mesa.
Clear spills in a timely manner. Do not let a long time left in the sandstone countertop. The clean sandstone mesa to choose neutral detergent or colorless, odorless detergent. You can also choose to use a mild dishwashing liquid. Do not use acidic cleaners. This cleaner will corrode sandstone polished surface.
Often washed sandstone countertops and grout at. Do not use detergent into the sandstone mesa. If you do not be cleared in advance, use a soft brush to brush off the residue. If you scrub away stains, do not scratch. You can repeat the cleaning.
Occasional deep cleaning. Deep cleaning also need to use a mild detergent. You can buy cleaning tools designed specifically for deep cleaning. Use a soft brush to remove stubborn residues. The cleaners Sprinkle Do not wipe it off. Finally, rinse thoroughly countertops, this step is very important.
Sandstone countertops protection Note the following recommendations:
1) sandstone cleaning agents must be neutral.
2) cleaners can not contain acid or citrus acid. These ingredients will damage the the sandstone surface gloss.
3) Be careful when to use a vacuum cleaner with metal accessories. These attachments can scratch the surface of the sandstone.
4) Do not try scouring powder or scrubs, these products contain abrasives can scratch the surface of the sandstone.
5) Avoid the use of tray under glass.
6) Do not put hot utensils placed directly into the sandstone mesa. Best to mat