Mezilov M.
VARIATION OF PHYSICO-CHEMICAL PROPERTIES ON THE NATURE OF FILLER IN ARTIFICIAL MARBLE PRODUCTION *
Аннотация:
this article examines the influence of the nature of the filler on the physicochemical properties of artificial marble. The results of studies on the influence of various fillers on strength, density, water absorption and other characteristics of the material are presented. The possibilities of optimizing the properties of artificial marble by selecting the optimal type and ratio of fillers are described.
Ключевые слова:
artificial marble, filler, physical and chemical properties, strength, water absorption, optimization
Natural marble is generally heterogeneous with impurities and fractures. They are available in remote areas and require extensive handling in shaping and finishing. Therefore, synthetic marbles are produced artificially to overcome those limits. The marble is one type of the metamorphic stones which are stones that change in form due to pressure, heat, and temperature resulting in profound chemical as well as physical change. The marble is a composite of resins like polyester and fillers. Fillers can be silica, calcium carbonate etc. Fillers and resin are mixed, followed by curing and molding to yield marble. The real marble look is simulated using pigments, chips etc. [1]. In creating artificial marble, binders and fillers are incorporated, and the resulting artificial marble can have varying physical and chemical properties based on the specific binders and fillers used. For this research, multiple kinds of artificial marble were produced using resin-based polymer material as a binder. The investigation focused on examining the alterations in the physical properties of the artificial marble by modifying the nature of the fillers.The research work involved the preparation of seven artificial marble samples using binder resin-based polymers and different local raw materials from Turkmenistan. One sample was created using Karakum sand, abundant in a third of Turkmenistan's territory, as an economically viable filler. Another sample utilized widely used gravels smaller than 4 mm, while a third used gravels larger than 4 mm. The seventh sample combined gravels with calcite. Additionally, a fifth sample was produced from natural white marble stones to establish a production process without waste. Analysis of sand deposits [2] revealed a high silicon (IV) oxide composition, indicating the potential for quartz sand extraction [3], forming the basis for the sixth sample. Lastly, the fourth sample was based on Koytendag's marble-structured rocks. The samples were tested for three physico-mechanical properties: average density, water absorption, and limit of compressive strength when saturated with water.The weight and volume of the samples were measured according to their average density, and the variation of the density of the artificial marble depending on the nature of the fillers was studied. According to the standards for marble, the average density should not be less than 2600 kg/cm3.Density is the mass of an object per unit volume.?=????Here ? is density, m is mass, and V is volume. In order to increase the numerical value of density, the numerical value of its mass must increase. That means, according to the result of the average density, the mass per unit volume of artificial marble prepared in the laboratory is smaller than that of natural marble, and accordingly, artificial marble is lighter than natural marble. The lightness of artificial marble makes it easier to work with this material in construction and allows to further reduce the weight of marble on buildings. Figure 1. A plot of the average density of specimens.The lowest index of the submitted samples for water absorption was shown by the fourth sample, that is, the sample containing the marble-structured rocks of Koytendag as a filler. According to the water absorption principle, the fourth model does not absorb water, but releases the water molecules stored in it. The third sample containing gravel with a diameter greater than 4mm as filler showed the highest water absorption performance. According to the standards for marble, water absorption should not be more than 0.75. Therefore, all artificial marbles meet this requirement.Figure 2. Diagram of water absorption of specimens.The samples exhibited varying performance in their water-saturated compressive strength compared to their original dry compressive strength. Notably, the seventh sample, containing fillers of less than 4 mm in diameter and calcite, demonstrated the highest water-saturated compressive strength. In terms of the compressive strength limit, the sixth sample, incorporating quartz sand as a filler, achieved the highest value at 767.3 kg/cm2. Conversely, the third sample, utilizing gravels larger than 4 mm in diameter, displayed the lowest result at 350 kg/cm2. These results indicate a correlation between the strength of resin-based polymer artificial marbles and the presence of voids between the filler and the polymer binder.Figure 3. A diagram of the compressive strength range of the specimens in the water-saturated state.
Номер журнала Вестник науки №3 (72) том 1
Ссылка для цитирования:
Mezilov M. VARIATION OF PHYSICO-CHEMICAL PROPERTIES ON THE NATURE OF FILLER IN ARTIFICIAL MARBLE PRODUCTION // Вестник науки №3 (72) том 1. С. 454 - 458. 2024 г. ISSN 2712-8849 // Электронный ресурс: https://www.вестник-науки.рф/article/13219 (дата обращения: 19.05.2024 г.)
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