Black Terrazzo

Enhance any space with our high-quality Black Terrazzo. Crafted from natural materials, this versatile product adds a touch of elegance and durability to any surface. Its sleek black finish complements any design and is perfect for both residential and commercial use.

The days are counted after the black terrazzo is compacted and polished.

(14) When the black terrazzo surface layer is constructed by the soft grinding method, the compressive strength of the surface layer can reach 100～130N/mm2 and the grinding can be started, and the surface stone particles are not loose. Time can not only ensure the quality of construction, but also speed up the progress of the project and improve work efficiency. The soft grinding method only advances the grinding head pass time and speeds up the progress. In the future, there will be mortar rubbing, polishing passes and other processes as usual, so it will not affect the surface finish or loosening of the grid strips.

(15) The number of polishing passes for ordinary black terrazzo surface should not be less than three. For high-grade black terrazzo surface, the number of polishing passes and the number of whetstone should be increased, which can be determined according to usage requirements or design requirements.

(16) The surface layer of black terrazzo should be polished in stages with a grinder, first test grinding, and then spray water after grinding, and clean the grinding stone slurry in time. The first pass is polished with No.54, No.60 and No.70 oilstones, while grinding and washing with water, while checking the flatness with a 2m ruler, it is required to be grounded, smoothed, and evenly ground, without patterns, and all parts of the grid are embedded. Exposed. Rinse the mud after grinding. After passing the inspection, apply the same color cement paste to fill in the small pores and dents on the surface of the surface layer. Stone particles with large holes or falling off should be filled or embedded with stone particles, and then ground after proper curing. Normal temperature curing 2 ~3d, low temperature and winter construction requires maintenance for more than 5d. The second pass is polished with No. 90, No. 100, and No. 120 oilstones, and it is required to polish until the surface is smooth. The other passes are the same. For the third time, use No. 180, No. 220, and No. 240 oilstones to polish. It is required to be polished until the surface stone particle size is exposed, smooth, and without pores. Rinse with water and dry, apply oxalic acid solution (hot water: oxalic acid=1:0.35 weight ratio, use after melting and cooling). When it is a high-grade black terrazzo surface layer, after the third pass is polished, the fourth and fifth passes will be polished after full slurry and curing. The whetstone is No. 240-300 to meet the requirements of use.

(17) The waxing work of the terrazzo surface layer should be carried out after all other processes that do not affect the quality of the surface layer have been completed. 500g of Sichuan wax and 2000g of kerosene can be boiled in a barrel to 130°C (white smoke). When using, add 300g of pine perfume and 50g of fish oil to prepare, wrap the wax in a thin cloth, and apply a thin layer on the surface layer. After it is dry, replace the oilstone with a wooden block nailed with fine canvas (or linen cloth), and install it on the grinding disc of a stone grinder for grinding; or polish it with a waxer until it is smooth and shiny. After waxing, lay sawdust for curing.

(18) After the terrazzo surface layer is completed, the finished product should be protected to prevent collision with the surface layer.

(19) When the stone grinder is in use, safety measures should be taken to prevent accidents such as electric leakage and electric shock. When starting up, the rubber cable should be tied up and fastened, and the switchboard should have leakage trip equipment.