YUNYANMIX Inorganic Stone Coating is a kind of polymer mortar manufactured by YUNYAN company, YUNYANMIX is a well branded one of Top 10 for Inorganic Stone Coating and new building chemicals in China, for a best supplier and wholesaler of new building chemicals please go through: http://www.yunyanchina.com
1.1 The base plane must meet the following standards:
1) Compressive strength: minimum 25 N/mm² (i. e. C 25 concrete strength);
2) Pulling out strength:> 2.0 M PAS (concrete layer with ￠ 6- ￠ 8 single-layer steel mesh inside);
3) Base plane discrepancy: 3mm within 2m range of ruler;
4) Fine stone concrete needs mechanical treatment by manual polishing, curing period: 28 days;
5) The elevation difference between the fine stone concrete leveling cushion and the finished coating should be controlled within 20mm;
6) Remove the floating slurry layer on the concrete surface, smooth the high ground if any, and ensure that the base surface is clean, no loose, no grease or other pollution before construction;
7) For the contaminated base surface, choose the appropriate industrial detergent or mechanical way to remove it;
8) Other requirements: concrete base not cracking, not empty drum, not sand, column cutting expansion joint;
9) Before the construction, the base surface must be checked, the content of the inspection mainly includes : check the base surface check cracking, hit the base surface to check the empty drum, rub the base surface with the foot to check the sand, check the situation to do the corresponding record;
1. Structure diagram of inorganic grinding stone details:
2. Base face requirements:
See the standard of fine stone concrete leveling layer
3. Basic-level processing:
3.1 Local and overall grinding
Before grinding, it must be measured according to the completed surface elevation of the product, and the elevation shall be verified before grinding. First find the high point of the base surface, eliminate the high point before polishing the large surface, and then polish the ground overall (grinder with 30 mesh metal head). When the elevation difference of the basic level is large, report to the project leader in time, and the site management personnel shall not deal with it without authorization. Finally, the project leader can issue the construction documents to carry out the next step of construction;
Standard: strengthen the ground adhesion, so that the ground without coarse particles, no cement bumps, no dust, flatness of 2mm within the range of 2 mm;
3.2 Crack treatment
Standard: cracking, true and false joints, cutting V-shaped groove,cut the seam 300mm wide 20mm deep with the seam cutting machine and create enhanced repair belt, with a high power vacuum cleaner to completely remove the debris in the groove, scraping a layer of epoxy into the groove with a small brush, after drying, place ¢ 10 steel mesh, in scraping epoxy mortar filling compaction. The ratio of epoxy to sand is: 1:7, and 20 and 40 parts of quartz sand. The node diagram is as follows:
4. Closed primer:
4.1 Before the first primer construction, use milling machine make hair, high-power vacuum cleaner cross the floor, after vacuum, the site construction personnel need to check again, from the corner of the base surface, the edge is cleaned, and finally by the management personnel to confirm whether to carry out the first primer construction;
4.2 Interface bottom coating construction.
5. Lay the metal mesh
5.1 The metal mesh shall be laid on the base surface, and the splicing shall be overlapped at least 3 cm and fixed with steel nails at the plate joint as smooth as possible to avoid bulging or warping edge.
Note: the net surface should be close to the base surface, do not bulge, avoid the formation of stone arch bridge, anti-crack layer is not dense.
6. Level control:
6.1 According to the surface elevation of the ground, measure the elevation points at the ground ends of one direction or area with a level instrument, and then pull through the line and fix it to get the ground elevation completion line of the direction or area;
Make a pancake column
6.2 Make the pancake according to the forming surface line, which is about 10mm above the pancake line. (according to the thickness required by the site, the mark of cake interval is not more than 1.5 meters, and the height deviation is within 2mm.
7, anti-crack layer spread: spread anti-crack mortar
7.1 Material mixing: stir the crack resistant mortar with water to the be slurry (water adding ratio is about: 3.5-4.0kg water :25kg powder), mix well, and the stirred material should be used up in 20-30 minutes.
7.2 Spread the mixed crack resistant mortar on the base surface, scrape one meter aluminum ruler or similar tools and press properly, the surface is about 12mm lower than the pancake surface; the thickness is about 10mm, and the amount of crack resistant mortar is about 25 kg/m2.
8, water-based resin bottom coating sand interface treatment
8.1 The first coating by a roller according to the mixing ratio: resin: curing agent: water =1:1:1 ;
8.2 After the first drying, proceed to the second time, according to the resin: curing agent =1:1, roll and sprinkle sand (60~80 mesh of sand), the sand should form a whole cover, and the dosage is about 1kg / square meter. After the resin is solidified (at least about 8 hours, the best next day), the unstuck sand should be swept out. If the local (more than 300 * 300mm) sticky sand is not strong, it is a must to apply primer again and spray one more time of sand. The final effect is uniform rough hemp surface, sand grain adhesion firmly, no exposed bottom.
8.3 After the interface layer is dry, sweep the unstuck sand on the surface.
9. Aluminum strip lofting and fabrication:
Aluminum strip installation is especially important, which is related to the flatness of the back paving, but also directly affects the effect of the whole project. Aluminum bar must also be reviewed on the whole base surface before installation, especially at the position of aluminum bar, the base surface must be high with a hand mill to the aluminum bar design point, the low one need to place aluminum bar to the right level;
9.1 According to the construction positioning and lofting drawings, locate the pattern position, first fix the aluminum strip with 502 glue, adjust the aluminum strip according to the horizontal elevation, and then fix it with epoxy mortar or cement slurry;
9.2 After the installation of aluminum strips, it is necessary to check whether the aluminum bars are straight and meet the requirements of the drawings;
9.3 Epoxy mortar to seal the high parts of aluminum strip to avoid spreading zing and color in the later period;
9.4 After the installation of aluminum bars, focus on checking whether the elevation of aluminum alloy separator is installed in place and check the elevation;
In addition: the wall column and the ground junction reserved 3-5 mm expansion space, reserved 3-5 mm with rubber strip isolation, positive angle edge, the ground insert surrounding need to do anti-cracking treatment, positive angle edge, the ground insert surrounding plus ￠ 10- ￠ 8 single layer wire mesh, wire mesh is generally used 150mm along the edge;
10. Inorganic grinding stone pouring layer:
In the preparatory work of inorganic grinding stone pouring layer, check whether the aluminum strip is loose and misplaced, whether the remaining sand is cleaned, the excess loose sand must be cleaned up, especially around the aluminum strip and the bottom of the wire mesh, focus on checking the object; check whether the water, electricity and transportation is convenient;
10.1 Mixing
Use centrifugal mixer mixing, the inorganic magic stone powder and stones in proportion into the mixer mixing evenly, mixing 3-4 minutes until even, one people is responsible for mixing, each set of feeding quantity must be the same, the time of each set as far as possible, shall not be ingredients in the construction area, do not hand mixing or split ratio package, each set of material try to put the group all out of material;
Standard: the mixture is carried out in order, first release water to wet the bucket inner wall, then put the powder into and stir it, and then pour the aggregate inside for mixing until uniform. The amount of water needs to be weighed, and the specific quantity should be adjusted according to the ratio and weather reasons;
10.2 Cast magic stone mortar
(1) Use immediately after mixing, dumping according to the design thickness continuous feeding, don't pour a whole bucket of material onto the ground, use foam, knife scraping, avoid scraping from the surface, fill up the empty place with magic stone mortar, spread the thickness of the mortar to cover aluminum strip, to where aluminum strip is not installed, infrared control is needed to control the thickness;
(2) To spread a color, we must clean the adjacent area pollutants in time, make sure no color pollution;
(3) Focus on the high part of the aluminum strip pad to avoid the liquid infiltration after spreading the aggregate and flow to other color areas, resulting in mixed color;
(4) According to the situation of the construction site, divide the area paving, the selection of the area of the paving must be completed at one time, do not stop midway, do not catch marks, to prevent the occurrence of color difference;
Paving effect control standard: through the customized elevation block and pull wire, referring to the elevation and applying the infrared paving, and controlling the flatness by 3 m; the aggregate paving should be even, the wall and partition edge should be full, no slurry without stone; the material dosage is about 25 KG / ㎡ (the dosage thickness is controlled at 12mm, the general design requirement is 10mm after grinding）；
11. Crude grinding treatment:
11.1 Grinding stone paving after 24 hours, if the grinding process of magic stones fly out of the grinding, stop grinding immediately, when grinding strength meets the requirements and then continue to grind, otherwise you need to wait for the strength suitable to grinding. Use 30 mesh iron pad or 60 mesh iron pad to grind the surface, until all comes the uniform, once the grinding stage begins, it is forbidden to eat in the area to avoid pollution;
11.2 with 50 mesh resin grinding pad we works cross uniform grinding, until the ideal effect, complete the coarse grinding;
Note: grinding must start from the corners, and then the overall cross-grinding; first grinding is the key to the effect, mainly reflected in flatness and opening effect.‚ The worker's construction method should always be the same, and the machine should move forward at a uniform speed.ƒ Grinding in place, collect marks to be thorough;
11.3 Detail treatment at the interface with the tile or stone. If it is the position of the door, it is necessary to be stuck and fixed with wood strips to prevent the grinder from grinding the tile and stone at the junction, causing damage to the surface of the tile and stone;
Standard: roughness after coarse grinding: 2mm within the range of 2m by ruler;
12, repair and construction
12.1 After the 50 mesh resin grinder is polished, then 100 mesh (or 150 mesh) resin dry grinder, repair when the ideal effect is achieved and thoroughly cleaned;
12.2 Repair powder mixed with water (how much water needs according to the ratio of the product), stir evenly, do not have too many ingredients at a time, the ground with high power vacuum cleaner thoroughly clean up, wet the ground before repair;
12.3 Generally choose dark color for first repairing, repair must be uniform, must be repaired as a whole, not local repair, repair another color till form color is completed;
12.4 After 24 hours of the first repair, use 300 mesh resin grinder to grind off the surface patch to the ideal effect;
12.5 Whether the second hole repair is required depending on the site;
Standard: repaired area should be completely polished, the holes are completely repaired and fully filled up, and then the next step for construction;
13, Hardening treatment
13.1 Upon the repair layer, grind it with 300 mesh pad, and harden the surface with lithium based floor sealer for two coats. After 24 hours, use the special 500 mesh dry mill for polishing, and perform the next process after reaching the desired effect. The amount of lithium based floor sealer is about 0.04 KG /M2 per coat.
14, Anti-pollution treatment, surface effect and polishing treatment
14.1 waterproof anti-fouling treatment grind with 1000 mesh resin pad, with 400 mesh pad cross- polishing horizontally and vertically each, and then repeat it with 800 mesh pad. After grinding and polishing, the surface is completely dry, apply waterproof and anti-fouling protective agent, waterproof and anti-fouling protective layer is dry (usually more than 24 hours, according to the ventilation situation and the weather conditions at that time.) And then apply the crystal top coat sealer.
14.2 Crystal top coat sealer will be applied to the magic stone surface (unit coverage: approx. 30 grams per square meters), polish the crystal top coat sealer with 3M red pad (cast paste for 1 square meter each time, the same way to the other area, pay attention to cast the top coat sealer paste evenly). While casting the crystal top coal paste, polishing pad is not allowed to touch it , grinding pad can not always be put on the grinding stone,otherwise color difference issue will come out.
15, The maintenance of 1-2 days is needed.
Inorganic magic stone can be made in 8mm-50mm.
COST EFFECTIVE THICKNESS: 1 cm (10mm) thick crack resistance layer + 1 cm (12mm grinding off 2mm) inorganic magic stone mortar
The specific thickness generally depends on the subjective requirements of the customer and the objective conditions of the site.
