Effect of Polycarboxylate Admixture on the …
The study explores the influence of polycarboxylate admixture (PCE) on fluorogypsum-based self-leveling material (FSLM) performance. Wev conducted an array of tests to assess workability and mechanical properties, …
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Mechanical properties and hydration mechanisms of high …
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 tons …
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Development of new pH-adjusted fluorogypsum-cement-fly …
A composition with 62% pH-adjusted fluorogypsum, 35% fly ash, and 3% Portland cement was selected based on strength and volumetric expansion properties to conduct …
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Composite hydraulic binders based on fluorgypsum: …
Calcium sulfate-based binders are a special kind of alternative cements that can promote sustainability in construction. The starting materials are fully or partially dehydrated …
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Study on activation of fluorogypsum by sodium sulfate and …
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 construction applications …
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Effects of Fluorogypsum and Flue-Gas …
Fluorogypsum (FG) is a by-product of the production of hydrofluoric acid and mainly consists of anhydrite. Flue-gas desulfurization (FGD) gypsum is the waste produced during the flue-gas desulfurization process in …
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Formulation of Sulphate Resistant Super Sulphated Cement …
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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What is Synthetic Gypsum?
Additional types of synthetic gypsum include titanogypsum, phosphogypsum, fluorogypsum, and citrogypsum. Composed of calcium sulfate dehydrate, synthetic gypsum has the same characteristics as natural gypsum, and can be …
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Environmental Benefits of Fluorogypsum Reuse in …
The use of man-made fluorogypsum instead of natural gypsum or other traditional materials allows one to reduce raw material costs. Waste fluorogypsum is often obtained in the process of industrial production and can …
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Comparative study on modifications of pH-adjusted …
Fluorogypsum is the waste residue produced by using fluorite to produce fluorine chemical products in the industry. Every 1 ton of fluorine chemical products produced usually …
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Determination of a Suitable Formulation of Fluorogypsum, …
Fluorogypsum (CaSO 4 ·H 2 O), a by-product of the hydrofluoric acid production process, is a low cost, locally available material that is currently being utilized as road bed material. The high …
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Comparative study on modifications of pH-adjusted fluorogypsum …
Fluorogypsum is the waste residue produced by using fluorite to produce fluorine chemical products in the industry. Every 1 ton of fluorine chemical products produced usually …
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UC Davis
1 1 Mechanical properties and performance under laboratory and field conditions of a 2 lightweight fluorogypsum-based blend for economic artificial reef construction 3 4 Yasser …
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Energy efficient cement free binder developed from industry …
In this paper, the physicochemical properties and hydration mechanism of cement-free binders developed from fluorogypsum has been discussed. The results showed maximum …
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Study on the proportion of paste filling materials …
A new type of paste filling material was created using fluorogypsum, a byproduct of hydrofluoric acid, as the raw material to address the issue of the filling material's high cost. The effects of five factors, including gangue, fly ash, …
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Fluorgypsum binders with OPC and PFA additions
Cementitious composites based on 50–80% fluorgypsum, 15–50% OPC and 0–15% PFA, were wet and dry cured for up to 180 days at 20 and 60 °C.All pastes developed …
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Sulfate Wastes
Fluorogypsum and phosphogypsum are sulfate-rich by-products generated during the production of hydrofluoric and phosphoric acid, respectively. Fluorogypsum. Fluorogypsum …
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6 Facts about Synthetic Gypsum
Fluorogypsum, a by-product of hydrofluoric acid manufacturing; Phosphogypsum, a by-product of phosphoric acid manufacturing; Titanogypsum, a by-product of titanium dioxide manufacturing. …
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(PDF) Effects of Fluorogypsum and Flue-Gas
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 investigated.
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Study on activation of fluorogypsum by sodium sulfate and …
A composition with 62% pH-adjusted fluorogypsum, 35% fly ash, and 3% Portland cement was selected based on strength and volumetric expansion properties to conduct …
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Synergistic effects of rubber-tire-powder and fluorogypsum …
In the hydration process, it was observed that a low fluorogypsum content slightly accelerated the cement reactions, while the rubber-tire-powder inhibited them. Regarding the …
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Development of new pH-adjusted fluorogypsum-cement-fly …
Fluorogypsum is an industrial waste from the production of hydrofluoric acid, and its main component is anhydrous gypsum with very slow hydration, inducing its application …
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Fluorogypsum: Old base materials causing cracks in …
Under the old parish Police Jury, parish officials used two kinds of locally produced industrial by-products as road base: fluorogypsum, marketed at one time as Florolite, and …
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A comprehensive overview of fibre-reinforced gypsum-based composites
Fluorogypsum is a by-product of hydrofluoric acid production. China discharges approximately 1 million t of fluorogypsum every year, and the accumulation of fluorogypsum …
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Determination of a Suitable Formulation of Fluorogypsum, …
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 bed material.
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Effects of Fluorogypsum and Quicklime on Unconfined
Fluorogypsum (FG), a by-product obtained during the production of hydrofluoric acid, satisfies these conditions, as it is capable of binding granular materials. Approximately 894,000 metric …
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Activation of fluorogypsum for building materials
Activation of fluorogypsum for building materials M Singh* and M Gar g Central Building Research Institute, Roorkee 247 667, India Received 08 July 2008; revised 20 November 2008; …
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Activation of Fluorohydride by Various Chemical …
fluorogypsum, 15-50% ordinary Portland cement, and 0-5% fly ash achieved a strength of 32 MPa after 180 days. Additionally, mixtures of 75% fluoro gypsum with blast furnace slag and …
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The activation of fluorgypsum with slag activator and the …
The mechanism of activator to fluorgypsum and the fluorine solidification were investigated by the performances of composite binding material. Through the setting time …
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Study on activation of fluorogypsum by sodium sulfate and …
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 …
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