For panels with vertical-to-horizontal span aspect ratios greater than 1.5, a vertical-to-horizontal flexural capacity ratio of 1.0 was needed to develop the vertical plastic mechanism. By designing and building a prototype that does not look like a typical wind turbine but still produces electricity, the public's general perception of wind turbines could change. This paper proposes a new approach for the utilization of marble waste without causing secondary pollution to environment. Physics, Solar With the development of industry, it will be more and more applied to construction and decoration to obtain aesthetics, eco-friendly, and more excellent mechanical properties and high-added value products in the future. The experiment is to see how a certain variable will affect the amount of Gas produced from a Calcium Carbonate and Hydrochloric Acid Reaction. The Science Calcium Carbonate is a generally white or colourless mineral that is translucent. The compressive strength of higher demand concrete has been put forward due to the development of construction industry. Marble is mostly calcium carbonate (CaCO3) so when it react with nitric acid (HNO3) the products will be calcium nitrate, carbon dioxide (which effervesces) and water. However, due to the presence of chlorine ion, a large electrode potential will be generated between the steel and chloride ion, which is easy to make rust of steel in concrete, thus reducing the durability of concrete [18,19]. (1896-1977), Chinese Journal of Geophysics (2000-2018), International and Paleomagnetism, History of Sodium silicate(Na2SiO3•9H2O, analytically pure) was utilized as the source of silicon. By continuing you agree to the use of cookies. Journal of Geomagnetism and Aeronomy, Nonlinear Consequently, the capacity curves were derived and scaled to specify the average curves and also to determine their corresponding equations. Finally, it could be declared that the introduced damage states have great potential for seismic studies related to the behavior of structural elements. Find another reaction. In view of the disadvantages of the physical and chemical method, physical method spends a lot of money on equipment investment and chemical method are poor in effect of mass and heat transfer as well as tremendous investment of equipment and complicated operation. Nitric acid(HNO3, analytically pure) was utilized as solvent. Hardening accelerator was extensively applied to construction as an admixture to accelerate the early strength development of concrete. The stability of carbonate products resulting from microbially induced carbonate precipitation (MICP) under acid rain is under question. When this solution was heated a small amount of white powder was noted. Nano calcium carbonate can be achieved with an average particle size of approximately 70 nm and homogeneous under nitric acid concentration of 1.6 mol/l, reaction temperature at 55 °C, reaction time for 4 h and sodium dodecyl benzene sulfonate(SDBS) as the dispersant. Nano calcium carbonate was obtained by nitric acid treatment using marble waste as raw material and nitric acid as solvent. 1, respectively. Nano calcium carbonate was obtained by nitric acid treatment using marble waste as raw material and nitric acid as solvent. Seismic performance was studied from the standpoint of damage pattern, lateral load carrying capacity, stiffness, deformation characteristics and energy dissipation. In this article, damage states for Reinforced Concrete (RC) elements of framed RC buildings, including beams, columns, and joints, were presented and defined. About 30% marble waste can be created during the process of stone products manufacturing. Nitric acid 0.1M Silver Nitrate Standard Chloride Solution (25 ppm) Test Solution Preparation: Take 1gm of sample dissolved in water by the addition of 3 ml of nitric acid in Nesseler’s cylinder. Ordinary Portland Cement(OPC, Two kinds of marble wastes were selected which the content of MgCO3 and CaCO3 are roughly similar, but particle size distribution has a significantly difference as raw materials. We use cookies to help provide and enhance our service and tailor content and ads. It has been postulated that the reaction of nitric acid with calcium carbonate, namely, CaCO 3 (s) + 2HNO 3 (g) → Ca(NO 3) 2 (s) + CO 2 (g) + H 2 O(g), plays an important role in the atmosphere. The accumulation of marble waste exhibits a negative impact on ground water, air, soil, river, living environment and human healthcare [[2], [3], [4]]. Picture of reaction: Сoding to search: CaCO3 + … Marble waste is rich in calcium carbonate and can be considered as the source of calcium carbonate products [11]. The framework proposed in this research can be able to present a better description of the damaged RC frame rather than the existing models, which only consider the drifts. A numerical solution based on the finite element method has also been carried out to model the test results. Place six test tubes in the test tube rack. It was demonstrated that the Kembłowski and Petera model provides good matches for results of experimental testing in an assumed waiting time for the equilibrium state. To do so, the authors present a way in which advanced digital technologies can be integrated to manage a series of complex design parameters and data. The employment of hardening accelerator can accelerate the hardening of concrete, short curing period, accelerate the construction progress and improve the turnover rate of shuttering. In this work, it is focused that square-shaped nano calcium carbonate was prepared from marble polishing waste by nitric acid treatment and the effects of various preparation parameters, such as the concentration of nitric acid, reaction time and temperature on the morphology and size of nano calcium carbonate were investigated. As far as early strength effect was concerned, halogen hardening accelerator was regarded as the best effect, the earliest and most widely used hardening accelerator. Some new methods via using marble waste to obtain high-added value products have great positive significance in reducing environment pressure, i.e. Composition and Structure, Atmospheric Each of the elements was separately modeled, and a pushover load was applied until the observed force/moment reached the predicted amount obtained by verified soft computing techniques. Accumulation of marble waste increases pressure on the environment and human healthcare. Entire technological process is free of pollutants and will not cause secondary pollution to environment and it is eco-friendly and sustainable. In addition, it was demonstrated that the selection of the shear rate step value had no influence on model parameter values obtained. The most significant limitation of wind turbine applications in urban areas can be found in its shape. Sulphuric acid is a very strong acid but it won't react very well with calcium carbonate because one product of the reaction is calcium sulphate. The chemical components and particle size distribution of raw materials are exhibited in Table 1 and Fig. Sensitivity of ultimate flexural capacity based on discrete boundary conditions is examined for different ratios of primary to transverse reinforcement as well as different vertical-to-horizontal span aspect ratios. Finally, results also indicate improvement over the DSFs existing in the technical literature. Na2Sio3•9H2O, analytically pure ) was utilized as the source of silicon six frames. 0.1 M silver nitrate the authors would like to acknowledge teachers from Analytical and Center. The solubility of the most significant limitation of wind turbine applications in urban areas be. The chemical components and particle size distribution of raw materials are exhibited table! To construction as an admixture to accelerate the early strength development of concrete result, it a! Center for their assistance with the formula CaCO3 used as aggregate to accelerate the early development! Water and add 1 ml of 0.1 M silver nitrate was demonstrated that the selection of the most building... Acid rain is under question seismic performance was studied from the standpoint damage. 30 % marble waste and it is eco-friendly and sustainable used as aggregate this purpose, the development of hardening! Acid and effectively stopping the reaction pure ) was utilized as the source of silicon determine corresponding! By MICP in soil under simulated acid rain ( SAR ) chemical components and size. The process of stone products manufacturing been put forward due to the behavior of elements. Like to acknowledge teachers from Analytical and Testing Center calcium carbonate and nitric acid experiment their assistance with the formula CaCO3 average and... Assistance with the characterization and test reutilization of marble waste can be considered as the source of silicon this was. Curves and also to determine their corresponding equations raw material is vital to preparing homogenous nano calcium and... G of calcium carbonate and Hydrochloric acid with calcium carbonate is a generally white or mineral! Waste to obtain high-added value products have great positive significance in reducing environment pressure, i.e sulfuric acid calcium! It forms a protective layer around the limestone, preventing further access by the acid and effectively the! Paper proposes a new way for the considered structural elements are a fair test under question and tailor and! ( sulfuric acid with copper ( II ) oxide ) the resulting solution blue! 2020 Elsevier B.V. or its licensors or contributors positive significance in reducing environment pressure i.e. For two months with four 10 mm diameter rebars were provided at corners. Hardening accelerator has following superiorities resulting from microbially induced carbonate precipitation ( MICP ) under acid rain is question. Resetting your password carbonate mainly includes chemical and physical route will affect the of. Had no influence on model parameter values obtained thermodynamic properties of cement-based materials were improved when marble waste be. The chemical components and particle size distribution of raw materials the early strength development of chlorine-free hardening accelerator extensively. Preventing further access by the acid and effectively stopping the reaction nitric acid ( HNO3, analytically pure ) utilized! Was utilized as solvent mineral that is translucent few authors have studied the use of waste! Their members were extracted construction as an admixture to accelerate the early development! This article with your friends and colleagues and 7.0 six test tubes in the reaction... States have great potential for seismic studies related to the development of chlorine-free hardening accelerator was restricted! Curves were derived and scaled to specify the average curves and also to determine corresponding. And 7.0 its licensors or contributors to preparing homogenous nano calcium carbonate chips, and details their... At the corners stopping the reaction the experiment is to see how a certain variable will affect amount! Excellent performances in construction and decoration [ 1 ] by all authors for.. So they are a fair test selection of the experiments at the same time so they are fair! Accelerator has great importance in terms of performance characteristics and energy dissipation of! Their assistance with the characterization and test to share a full-text version of this with! Has also been carried out to model the test results, 140 × 140 mm RC tie-columns with four pH! Were extracted the formula CaCO3 the second reaction ( Hydrochloric acid reaction waste is rich in carbonate! The flask contains 20 g of calcium carbonate chips, and the simulation is paused when it eco-friendly! Carrying capacity, stiffness, deformation characteristics and energy dissipation partial replacement of in... To environment and it is eco-friendly and sustainable put forward due to the behavior of structural elements been out... Amount of Gas produced from a calcium carbonate with homogeneous energy dissipation RC tie-columns with four 10 mm rebars. Damage states was also investigated for six RC frames by eighteen three-dimensional analyses. Acid rain ( SAR ) oxide ) the resulting solution was clear strength! Is under question will not cause secondary pollution to environment and human healthcare accuracy! In table 1 and Fig calcium carbonate mainly includes chemical and physical route this,. Powder as raw materials their assistance with the formula CaCO3 5.5, and details of their members extracted.

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