Modern building Tile Terrazzo Floor projects make extensive use of Tile terrazzo floor because of its great strength, smooth surface, low cost, good decorative impact, and easy maintenance and cleaning. Public buildings including offices, hospitals, classrooms, and so forth particularly favour it. Engineering examples will be combined in this paper to extensively investigate the main ideas of Tile Terrazzo Floor construction technology, quality control and preventative actions for common difficulties, and offer reference for associated engineering activities.
The importance of Tile Terrazzo Floor raw material selection
Tile Terrazzo floor construction calls for the choice of several raw materials, and the quality of these components directly influences the final building result. The fundamental cementitious ingredient used in terrazzo building is cement. While dark terrazzo uses organic silicate alkaline cement, it is imperative to make sure that its alkaline content satisfies the criteria of the specification to avoid negative effects on the durability of terrazzo; light-colored terrazzo usually uses white cement because of its pure colour and good decorative effect. Although their dosage is usually 3% to 6% of the total cement content, mineral pigments are mostly utilised for colour matching in terrazzo; so, their particular dosage must be found by means of experimentation. To guarantee that terrazzo’s colour stays constant after lengthy use, pigments must have strong light resistance and alkali resistance. Usually composed of granite, marble, or dolomite, stone particles—aggregates for terrazzo—have a range of size from 4 to 14mm. These stones free of trash, are hard and wear-resistant. In terrazzo building, the grid strips serve in both separation and adornment. Two rather popular forms are copper and glass strips. Their width and length have to be found based on the terrazzo grid size and surface thickness. Furthermore, terrazzo uses usually medium sand, hence the muck concentration cannot be more than 3%. Used, it needs to be sieved using an 8 mm aperture sieve. Polishing is done with oxalic acid, but as it is poisonous and caustic, great care must be given to prevent coming into touch with food and drinking water.
Base treatment and leveling layer construction
The fundamental link in Tile terrazzo floor construction is base treatment; its quality directly influences the construction effect of the terrazzo surface layer. The trash on the base needs to be completely cleaned before construction to guarantee that the base is flat and clean, therefore avoiding influencing the bonding between the surface layer and the base. Should floor cracks exist, they should be addressed to stop leakage. The layer of cement mortar levelling is built onto a cleaned basis. putting out the lines and levelling, installing pipeline pre-buried, cleaning the base, brushing cement slurry, marking reinforcement and putting levelling mortar constitute the levelling layer construction process. The levelling layer’s cement mortar should have a suitable viscosity, and the mixing should be completely and equally done. It is advised to guarantee quality by means of mechanical mixing. Ground has to be irrigated and kept maintained within 24 hours once it has been level. Usually, maintenance calls for two to three days. The building of the grid strips can only start until the strength satisfies the specifications.
Installation of grid strips and laying of cement stone slurry
The decorative impact of terrazzo depends directly on the quality of the grid strips. Usually, cement slurry fix the grid strips. Particularly careful should be paid to the horizontal elevation and angle of the upper part during installation. Generally 1 to 2 mm lower, the horizontal elevation of the top part of the grid strip should be somewhat lower than the height of the cement gravel slurry construction surface after installation; a certain gap should be allowed between the lower portion of the grid strip and the ground. This helps to ensure that, during surface cement mortar laying, the stone particles are close to the grid strip so that, following polishing, a better ornamental appearance results. The cement stone slurry can be laid when the fixed grid strip’s cement strength satisfies the prescribed criteria. Plain cement slurry should be sprayed and trash, accumulated water and floating slurry have to be cleared before work starts. To stop the grid strip from moving, first equally distribute the suitable quantity of cement mortar and stone particles within 10 cm on both sides of the grid strip. Should terrazzos of various colours and types exist on the ground, the darker colour should be built first and the lighter colour should be developed thereafter. First the big surface should be laid; the little surface should be laid subsequently. Proofing should be done before official construction and a designated special person should be assigned to oversee the terrazzo and admixture during the building process. Only once confirmation by the design party and the construction party is large-scale building possible. Operators must exercise great caution to prevent walking over deep footprints when laying the surface layer. Roller compaction should be applied to guarantee a level and solid ground once the cement mortar stone concrete foundation is finished.
Surface grinding and polishing process
The manufacturing of terrazzo depends mostly on surface grinding, so timing of surface grinding as well as the technique applied to grind it directly affect the quality of the resulting product. Considering the temperature of the working area and the strength of the cement slurry helps one determine the appropriate moment to start grinding terrazzo. This will enable one to choose the right moment. Two to three days after the cement stone slurry is finished at room temperature, grinding can start under normal conditions. This is the period when one would say situations are normal. Water should be kept near the grinding wheel so it may be disposed of throughout the stone slurry processing. This will facilitate the water removal. In the situation that the cement stone slurry is not firmly packed and develops local small pores as a result of the terrazzo’s creation, grouting could be able to treat it. Furthermore, the Tile terrazzo floor needs to be grouted twice and polished three times accordingly before it can be said completed. Once the cement stone slurry is laid down, the first grinding process takes two to three days. The ground should be usually smooth; the pattern shape should be obviously evident; and the sections that are not working well should be promptly corrected; the second grinding is set to take place two to three days after the first one finished. The third grinding is the most crucial stage in the process of obtaining the intended quality in the moulding; it is necessary to eliminate the grinding marks and fix the localised little flaws. Regarding the look of the stone, the particles should be seen evenly, the surface should be smooth, and no pores should exist. At the end of the terrazzo-making process, this is the polishing stage; it is also a really crucial phase to have a suitable appearance. Moreover, polishing produces physical changes in addition to the chemical ones it influences. The power of the polishing liquid to induce the chemical reaction of the surface’s projecting sections produces a layer of glossy film. This brings about the film’s production. This response makes it feasible for the goods to be squeezed into concave sections. Waxing should be done when the surface has reached a state in which it is totally dry so that the Tile terrazzo floor has long-lasting sheen following polishing. After the first material grind, the surface layer should be treated with 10% oxalic acid solutions, cleaned with pure water, waxed and polished once the ground has had time to dry.
Quality defects and preventive measures
Many quality flaws, including hollowing of the floor, unequal exposure of grid strips, uneven exposure of stones, and uneven colour, could show themselves throughout the Tile terrazzo floor’s construction. The main way hollowing of the floor shows itself is the inadequate adhesion between the surface layer and the foundation layer or levelling layer. Two further instances of errors that could happen are improper slurry bonding layer treatment or insufficient base layer cleaning. Among the preventative actions are meticulous cleaning of the base layer and careful sweeping of the slurry bonding layer, which taken together guarantee that the base layer is level and clean. Regarding the hollowing issue that has arisen with the block, one should give the regularity and colour consistency of the repair block much care during the fixing procedure. The variety of stone exposures reveals the floor flatness issue. The stones sank or the imprints were slightly changed maybe due to the construction workers walking on them. Organising the events connected with the building helps to prevent trampling on the layer of smoothed surface, guarantees that the construction workers follow the rules, and helps to take precautionary actions. The several grid strip exposures influence the decorative element impact. Either the surface layer is not level or the height of the grid strip is not constant for which this explains. Important tasks during the installation process are verifying by drawing a line, controlling the top elevation of the grid strip, and modifying the deviation in time to be preventative. Sometimes the unequal colour of terrazzo is referred to as “big painted face”. This is so because the pigment is not evenly mixed or coloured liquid contaminates the surface layer. Establishing a person who will be completely in charge of pigment mixing guarantees correct measures, adds water and stone slag following the pigment and cement have been dry mixed in a uniform manner, therefore preventing surface layer contamination.
The technology underlying the Tile terrazzo floor building keeps developing with time. Thanks to new materials and processes, its performance and decorative impact have been always better. To meet the practical and aesthetic needs of structures in real-world projects, construction workers should pay great attention to details, carefully follow the standards, and increase quality control. This will enable the Tile terrazzo floor construction to be of higher quality and let the buildings to last for more years. Tile Terrazzo flooring is expected to be used in more different construction sectors from now on, offering better floor installations choice.
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