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FLUOROGYPSUM can advantageously replace traditional cement as a binder for screed mortars. It is widely used in floor screen applications because of its numerous …
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II. Materials And Methods The raw materials like fluorogypsum, GBFS and ordinary Portland cement were supplied by M/s Meta Dynamics, South Africa to formulate super sulphated cement. 2.1 Fluorogypsum The …
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AMA Style. Fan L, Xiong S, Wang W, Zhang J, Zeng L. Effect of Polycarboxylate Admixture on the Performance of Fluorogypsum-Based Self-Leveling Material.
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The waste fluorgypsum was modified and applied as a cement retarder. The main chemical composition and mineral structure of the waste fluorgypsum were analyzed. Scanning electron microscopy (SEM) and eight-channel micro-calorimeter (TAM Air) were employed to analyze the changes in morphology and study the application performance …
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The mixture composition of composite binders prepared by blending the beneficiated ground fluorogypsum with granulated blast furnace slag (Fineness 400 m 2 /kg (Blaine), Portland cement and activators in different proportions followed by inter-grinding in a ball mill to a fineness of 410 m 2 /kg (Blaine) are given in Table 4.The …
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Gold Price in Oman Today: per oz 968.88 Omani rials. Stay updated with the latest and most accurate gold prices in Oman, where we provide real-time information on 24-hour spot gold rates. Our comprehensive coverage includes live prices per gram, ounce, and tola for various purities such as 24K, 22K, and 21K gold. The most current gold …
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Abstract. In order to explore the influence of the types of waste gypsum on the properties of alkali slag cement, fluorogypsum (FG) and flue-gas desulfurization (FGD) gypsum were comparatively …
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Marks Oman's independence from Portugal in 1650, making it the oldest independent state ... National Day Holiday Nov 19, . Second day of public holiday in celebration of Oman National Day. Ascension Day Jan 11, . Marks the ascension to power of the current Sultan in January 2021.
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Gold Price Today in Oman in Omani Rial (OMR) Gold prices in Oman are updated at Monday 09 September 2024, 11:54 pm, GMT (Tuesday 10 September 2024, 03:54 am, Muscat time) 1 Ounce Gold = 964.80 Omani Rial 1 Gram Gold = 31.02 Omani Rial
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Introduction Fluorogypsum (FG), a waste of hydrofluoric acid industry, has been studied for use as building material . Water-resistant binding materials can be produced from phosphogypsum, slag, cement, fly ash and lime sludge. Impurities (fluoride) present in FG may interfere with setting and strength development of plaster/ building …
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The LF NMR analysis revealed that the addition of KH 2 PO 4 and fluorogypsum enhanced and accelerated pore evolution and facilitated the hydration process of aluminate cementpared with pure aluminate cement slurry, the porosity was decreased by 21% in the mix containing only 10 wt% fluorogypsum, and the porosity …
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DOI: 10.1016/j.cscm.2020.e00471 Corpus ID: 230572878; Synergistic effects of rubber-tire-powder and fluorogypsum in cement-based composite @article{RodrguezR2021SynergisticEO, title={Synergistic effects of rubber-tire-powder and fluorogypsum in cement-based composite}, author={Sandra L. Rodr{'i}guez R. and O. …
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An ethnobotanical review of the uses of plants in Oman led us to investigate some edible and wound-healing herbs for antioxidant activity, using in vitro DPPH and …
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Working Hours in Oman. Under the labor law of Oman, article 68 states that normal working hours for an employee should be 8 hours per day or 48 hours per week. According to the law, there is a slot of 1 hour every day which should be spent as a break. This break can be utilized for meals or employees' rest.
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fluorogypsum received from South Africa and ordinary Po rtland cement. The SSC was eval uated for its . physical, c hemical a nd mechanical properties as per I S: 6909: 1990 [26].
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Apple iPhone 14 Pro and Pro Max Prices in Muscat, Oman. The iPhone 14 Pro is available in Oman, starting from OMR 399.900. The iPhone 14 Pro 128 GB will cost around OMR 399.900, iPhone 14 Pro 256 GB will cost OMR 435, iPhone 14 Pro 512 GB will cost OMR 549 & the iPhone 14 Pro 1TB will cost OMR 649.
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Case study Synergistic effects of rubber-tire-powder and fluorogypsum in cement-based composite Sandra c L. Rodríguez R.a, O. Domínguezb, Jorge H. Díaz A.b,*, Christian Garcíaa, Fidencio ...
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PDF | In order to explore the influence of the types of waste gypsum on the properties of alkali slag cement, fluorogypsum (FG) and flue-gas... | Find, read and cite all the research you need on ...
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This paper investigates the mechanical properties under laboratory and field conditions of a concretelike blend made of fluorogypsum (FG), fly ash, and portland cement for artificial-reef construction, which is referred to as a FG-based blend. The 28-day compressive strength and relative volumetric expansion of the FG-based blend were ...
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This study focuses on the effect of Na 2 SO 4 and NaNO 2 on the modification of fluorogypsum, and the performance of the modified fluorogypsum in …
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Fluorogypsum The sample of fluorogypsum was analysed for various constituents such as SiO2, Al2O3, Fe2O3, CaO, MgO, SO3, CaF2 and pH as per standard test procedures [12,13] and characterised by differential thermal analysis (DTA) (Stanton Red Croft, UK), X-ray diffraction (Rigaku D-Max 2200) and scanning electron microscopy (SEM) (LEO 438 …
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PlantMedOman aims to strengthen academic research, aid in drug discovery, promote the conservation of medicinal flora and increase awareness of Oman's ethnomedicinal …
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Fluorogypsum (FG) is a byproduct of hydrofluoric acid production. In China, production of one ton of HF can produce four to five tons fluorogypsum. Over 400 million …
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7.4 Fluorogypsum 7.5 Phosphogypsum 7.6 Others 8 Synthetic Gypsum Market, By Application 8.1 Introduction 8.2 Cement 8.3 Soil Amendment 8.4 Drywall 8.5 Dental 8.6 Water Treatment 8.7 Others
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However, some studies have demonstrated that fluorogypsum has a higher potential activity compared to natural anhydrite [4]. In recent years, numerous scholars have effectively stimulated the ...
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Given the issues related to poor hydration activity, long setting time and low early strength of industrial by-product fluorogypsum (FG), the composite modifiers (Na 2 SO 4 and NaNO 2) were utilized to enhance its reactivity.The investigation of the mechanism involved the utilization of contemporary analytical methods, including X-ray …
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In Oman, a high proportion of overall native flora exhibits pharmacological properties, with a total of 437 species of medicinal plants which are nearly 31% of the total floristic …
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In view of the poor hydration activity and difficult utilization of industrial by-product fluorogypsum, the effects of potassium carbonate (K 2 CO 3) and potassium bicarbonate (KHCO 3) on the hydration mechanisms of fluorogypsum (pH-adjusted to 7.3) were investigated and compared through hydration rate, hydration heat, solubility and …
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Given the issues related to poor hydration activity, long setting time and low early strength of industrial by-product fluorogypsum (FG), the composite modifiers (Na 2 SO 4 and NaNO 2) were utilized to enhance its reactivity.The investigation of the mechanism involved the utilization of contemporary analytical methods, including X-ray …
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Quicklime, PC32.5 cement and fluorogypsum-based cementitious binder were employed as solidification agents, respectively. The employed quicklime is commercially available with 85% effective CaO and 247.2 m 2 /kg of specific surface area. The fluorogypsum-based cementitious binder is composed of 30% fluorogypsum, …
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AMA Style. Wang C, He H, Wang Y, Xue W. Effects of Fluorogypsum and Flue-Gas Desulfurization Gypsum on the Hydration and Hardened Properties of Alkali Slag Cement.
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Fluorogypsum (FG), an acidic by-product (pH = 2.3) generated by the industrial manufacturing of hydrofluoric acid (Chesner et al. 1998), is commonly stockpiled after addition of alkali materials ...
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The industrial byproduct gypsum is a general term for byproducts discharged from industrial production with calcium sulfate as the main ingredient. Due to the high number of impurities and production volume, the industrial byproduct gypsum is underutilized, leading to serious environmental problems. At present, only …
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The effects of fluorogypsum and KH 2 PO 4 on the setting time of aluminate cement are shown in Fig. 4. The incorporation of 10 wt% fluorogypsum in C2, as depicted in Fig. 4, resulted in a slight prolongation of both initial and final setting time compared to C1. This can be attributed to the formation of AFt, which hinders the setting …
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DOI: 10.1016/j.jmrt.2023.09.005 Corpus ID: 261668955; Effects of 1,2,3-Propanetricarboxylic Acid on the hydration and microstructure of fluorogypsum @article{Zhu2023EffectsO1, title={Effects of 1,2,3-Propanetricarboxylic Acid on the hydration and microstructure of fluorogypsum}, author={Jianping Zhu and Zuolin Wang …
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This research aims to develop a concrete-like material for underwater construction applications by using fluorogypsum (FG, an industrial by-product of hydrofluoric acid production), class C fly ash, and type II Portland cement. Two Response Surface Models (RSMs) were derived based on compressive strength tests and expansion …
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Due to the high cost of limestone as an oyster cultch material in the State of Louisiana, an economical, locally available material is needed to provide a binding substrate for the oysters. Fluorogypsum (CaSO4·H2O), a by-product of the hydrofluoric acid production process, is a low cost, locally available material that is currently being utilized as road …
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FGD gypsum is a by-product of the recovery of sulfur oxides from the flue gases generated at power plants that burn coal. A natural contaminant of coal, sulfur is almost completely …
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