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Product detail:
Historical
Originally created by construction workers as a low cost flooring material, the workers used marble chips from upscale jobs to create Terrazzo. The workers would usually set them in clay to surface the patios around their living quarters. Consisting originally of marble chips, clay, goat milk (as the sealer), production of Terrazzo became much easier after the 1920s and the introduction of electric industrial grinders and other power equipment.
Newly-set Terrazzo will not look like marble unless it is wet. That's where the goat's milk comes in, acting as a sealer and preserving the wet and marble-like look.
The central, common pavilion in the cadet area at the is made of terrazzo tiles, among a checkerboard of marble strips. The entire area is referred to as "The Terrazzo".
Archaeological
Archaeologists use the word terrazzo to describe the floors of early buildings (PPN A and B, ca. 9.000-8.000 BC) in Western Asia, that are constructed of burnt and clay, colored red with and polished. The embedded crushed limestone gives it a slightly mottled appearance. The use of fire to produce burnt lime, which was also used for the hafting of implements thus predates the use of pottery by almost a thousand years. In the early Neolithic settlement of in eastern ca. 90 m² of terrazzo floors have been uncovered. The floors of the PPN B settlement of Nevali Cori measure about 80 m². They are 15 cm thick, and contain about 10-15 % lime.
These floors are almost impenetrable to moisture and very durable, but their construction involved a high input of energy. Gourdin and Kingery (1975) estimate that about 5 times the amount of wood is needed to produce the required amount of lime, but recent experiments by Affonso and Pernicka have shown that only the double amount is needed. But that would still amount to 4.5 metric tons of dry wood for the floors in Cayönü, in what is an only sparsely wooded environment today.
General Production Process
Terrazzo workers create walkways, floors, patios, and panels by exposing marble chips and other fine aggregates on the surface of finished concrete or epoxy-resin. Much of the preliminary work of terrazzo workers is similar to that of . Marble-chip, cementitious terrazzo requires three layers of materials. First, cement masons or terrazzo workers build a solid, level concrete foundation that is 3 to 4 inches deep. After the forms are removed from the foundation, workers add a 1-inch layer of sandy concrete. Before this layer sets, terrazzo workers partially embed metal divider strips in the concrete wherever there is to be a joint or change of color in the terrazzo. For the final layer, terrazzo workers blend and place into each of the panels a fine marble chip mixture that may be color-pigmented. While the mixture is still wet, workers toss additional marble chips of various colors into each panel and roll a lightweight roller over the entire surface.
In the 1970s, polymer-based terrazzo was introduced and is called thin-set terrazzo. Initially polyester and vinyl ester resins were used as the binder resin. Today, most of the terrazzo installed is epoxy terrazzo. The advantages of this material over cementitious terrazzo include: wider selection of colors, 1/4 inch to 3/8 inch installation thickness, lighter weight, faster installation, impermeable finish, higher strength, and less susceptibility to cracking. In addition to marble aggregate blends, other aggregates have been used such as recycled glass, metal shapes and medallions.
When the terrazzo is thoroughly dry (or cured in the case of thin-set terrazzo), helpers grind it with a terrazzo grinder, which is somewhat like a floor polisher, only much heavier. Slight depressions left by the grinding are filled with a matching grout material and hand-troweled for a smooth, uniform surface. Terrazzo workers then clean, polish, and seal the dry surface for a lustrous finish.
Production Process by us
Terrazzo by P8 product is a hand made product which made from the natural stone. Besides using the engineered stone, in creating the unique and luxurious product, we have been mixing the engineered stone with the other additive material as chemical catalyst which can make solid and hard engineered stone as the initial form. While in the pigmentation process, we use the UV absorption method to create the natural pigments.
We have been creating the high level artistic and quality product, and also making the luxurious impression to the users. Besides, we also have creating a product with the natural impression as the used materials that have same solid and hard as the natural stones.
The manufacturing is simple; stones (marble stone, gravel of natural stones) are mixed then added a resin and the other additive materials and then molded in to a mould. We avoid a trapping air bubbles in the mix, as these cause a voids in the materials with adjusting the viscosity of the mixture.
After the mixing process of row material engineered stone with the other additive materials, we continue the second phase i.e. the curing process. On the phases, the curing process is not done in the other places over the factory as usual. To get the good quality and special cure, the Terrazzo by P8 product cured at the factory prior standing before emery process.
Besides artistic value of the hand made product, the other magnificent value of the Terrazzo by P8 product are Scratch Resistance (tested by Mohs hardness scale 6 to 7 on, and the abrasion index of 58+), Water Absorption that can make easy maintenance and make the vanity is not easy to be dirty. The Terrazzo by P8 product as the special quality product has an absorption coefficient of 0.02% or more than 16 times better than the minimum of water absorption other product.
On the other hand, the Terrazzo by P8 product have the Stain Resistance specification, the test result of ASTM C-650 confirm that the Terrazzo product is stain resistance, so the stain is easily cleaned with the usual floor cleaner. Chemical Resistance and Flame Resistance, the test of ASTM E-84 which we have conducted confirm that the flame spread resistance coefficient of 17 and smoke density coefficient of 196 under flaming test and 69 in a non-flaming test. These tests confirm that the Terrazzo by P8 product is safe and flame resistance.
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Prambanan Indonesia Group
