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Incorporation of phosphogypsum with cement in rigid Pavement:
2023年4月10日· This experimental study suggests that phosphogypsum from industrial waste can be used as a cement substitute in concrete production After 7 and 28 days,2023年5月1日· Phosphogypsum is the solid waste discharged during the production of phosphoric acid by industrial wet process, 5 tons phosphogypsum can be produced perInfluence of cement on properties of calcined phosphogypsum
Effect of phosphogypsum on physiochemical and
2021年3月1日· Phosphogypsum was used to improve the strength of cement stabilized dredged soil • Effect of phosphogypsum on physiochemical and mineralogical was2022年9月29日· Moreover, only a few byproducts of phosphogypsum are used to manufacture gypsum, bricks, cement, cement retarder, etc [ 13, 14, 15, 16 ] However,Collaborative Utilization Status of Red Mud and Phosphogypsum:
Eco concrete made with phosphogypsumbased super sulfated
2020年6月1日· The present paper deals with the experimental investigation on slump number of fresh concrete, 28day compressive strength characteristics of concrete using2017年1月1日· Phosphogypsum’s presence in the cement has increased its initial strength rapidly This strength development was due to the formation of anhydrate atEffect of Phosphogypsum on the Properties of Portland
Utilization of solidified phosphogypsum as Portland
2012年6月27日· Cement is the most massive manmade material, 004–008 ton of gypsum is needed to produce 1 ton of cement, and there were around 15 billion tons of cement1999年9月1日· Abstract An experimental study was conducted to investigate the potential use of phosphogypsum (PG) in concrete This was accomplished by preparing mortarPotential use of phosphogypsum in concrete ScienceDirect
Modification method for phosphogypsum and application thereof
2007年1月31日· The modified phosphogypsum can replace the natural gypsum for producing the cement; therefore, the two industry wastes of phosphogypsum and the carbide slag can be reused; furthermore, not only the cost of cement production, the cost of phosphate chemical industry production and the cost of ocean chemical industry are2022年1月2日· It is established that one ton of phosphogypsum can be used to produce up to 900 kg of gypsum plaster Possible area of application of binder obtained from processed phosphogypsum is given in Table 1 Table 1 Possible area of application of binder obtained from processed phosphogypsum ite m No Application area KeySVXP3URFHVVLQJ0HWKRG IOPscience
Utilization of solidified phosphogypsum as Portland cement retarder
2012年6月27日· The utilization of the phosphogypsum (PG) as cement retarder is both an economical and an ecological approach to treat this solid waste Cement using raw PG as retarder has two problems pressing for solution,namely, delaying the setting time and difficulty being fed into the cement mill The soluble phosphates in PG behave as super2014年11月1日· the composition of the raw material charge, it is possible to produce lime, cement, aggregatetype materials, or even limeaggregate mixtures The cementsulphuric acid approach was relatively widely adopted in Europe starting in the 1920's with a most successful operation by Marchon in England where natural gypsum was used as a rawPHOSPHOGYPSUM: A Review of the Florida Institute of Phosphate Research
An Xray Fluorescence (XRF) Analysis of a Molecular Layer
2021年7月1日· The proposed analysis steps of a glass frit can be widely used in factories that produce cement from phosphogypsum The new cement product produced by the production process of sulfuric acid integrated with cement from phosphogypsum (1,2) has been widely used in the market2022年4月26日· This is because parathion gypsum slag cement can generate more ettringite to solidify chloride ions Parathion gypsumbecause slag cement was created by combining phosphogypsum with GBFS, steel slag, cement clinker, or limestone powder The phosphogypsum content can reach 50%, and the 28 d strength can reach 50 MPaApplication of Iron Ore Tailings and Phosphogypsum to Create
Effect of Phosphogypsum on the Properties of Portland Cement
2017年12月31日· Literature reveals that about 10% of the Portland cement can be replaced with Phosphogypsum [33,34], while as [14,35] found 75% and 8% replacement can be achieved respectivelyment of phosphogypsum and red mud has become a worldwide problem Red mud is used in catalysts, adsorbents, building materials, composite materials, and metal recovery [1012–] Moreover, only a few byproducts of phosphogypsum are used to manufacture gypsum, bricks, cement, cement retarder, etc [13–16]Collaborative Utilization Status of Red Mud and Phosphogypsum:
Calcination parameters on phosphogypsum waste recycling
2020年9月30日· The calcination at low temperatures transforms phosphogypsum (PG) waste in a material with binder properties This study evaluated two parameters of PG calcination: kiln residence time (1 h, 2 h, and 5 h) and temperature (120 °C, 150 °C, and 200 °C) The main objective was to find adequate calcination conditions considering PG2020年10月23日· Cement–PhosphogypsumStabilized Soil and Classification for RoadUsed Phosphogypsum the problem of stacking PG is an urgent matter to solve PG can be used to produce fly ashlimePG bricks instead of traditional burned clay bricks for use as building material Fly ashlimePG bricks are lighter and have su cient strength andEffects of pH and Fineness of Phosphogypsum on Mechanical
Investigation on Utilization of Phosphogypsum as a Partial
materials used were Cement, Fine aggregate, Coarse aggregate and Phosphogypsum A Cement Ordinary Portland cement (CEM I425) was used The cement has specific gravity of 315 and fineness of 29x105 mm2/g B Fine Aggregates Natural sand with specific gravity of 261 was used as fine aggregates in the concrete specimens2023年6月1日· in phosphogypsum can be basically removed, Experimental results indicated that PG can be utilized to produce CSA cement, and the suitable firing temperature is between 12501300 °CStudy on the Phosphogypsum Proportion in Foamed Concrete
A Sustainable Composite Cementitious Material
2022年12月12日· Phosphogypsum is a waste gypsum that is produced as a byproduct of phosphoric acid manufacture Every year, the world produces between 100 and 280 million tons of phosphogypsum2022年6月1日· Phosphogypsum can replace natural gypsum to produce hemihydrate gypsum In order to effectively reutilize phosphogypsum, the influence mechanism of the impurities in phosphogypsum on the properties of plaster should be firstly revealed This study systematically investigated the effect of H 3 PO 4 on the hydration and propertiesHarmless treatment technology of phosphogypsum: Directional
Radioactive waste roads in Florida: Phosphogypsum can be
2023年6月30日· Florida is another step closer to paving its roads with phosphogypsum — a radioactive waste material from the fertilizer industry — after Gov Ron DeSantis signed a controversial bill into law2017年7月20日· The purified PG can produce gypsum plaster (CaSO 41/2H 2 O) of improved setting and strength characteristics The plaster can be used as building materials 17 Manjit S, Garg M Production of beneficiated phosphogypsum for cement manufacture J Sci Ind Res 2002;61:533–537 18Phosphogypsum purification for plaster production: A process
Modeling compressive strength of Moroccan fly ash–phosphogypsum
2019年11月25日· Shen et al reported that phosphogypsum can be used to produce the calcium sulfoaluminate cement with an optimal firing temperature between 1250 and 1300 °C Geopolymers, originally proposed by the French scientist Davidovits [ 5 ], designated a large range of materials characterized by chains or networks of inorganic molecules thatPhosphogypsum is a byproduct of the phosphates industry Produced in significant quantities, the material is considered a waste in the US due to radioactivity, where the primary means of management is storage in “stacks” But around the world, phosphogypsum is increasingly being utilized in beneficial reuse applications, withPhosphogypsum – An Industrial Byproduct with Value
Valorization of phosphogypsum in cementbased materials:
2021年12月1日· In this way, it seeks methods of using industrial waste to produce cement and technologies that minimize CO 2 emissions [4] After purification, phosphogypsum can be used as an alternative material to natural gypsum Phosphate impurities, especially eutectic phosphorus, are challenging to be removed thoroughly from phosphogypsumof cement Only 15% of phosphogypsum can be recycled in the world, but only 10% in China Many researchers had worked on phosphogypsum for a lot of development research, and made some achievements, for example, the phosphogypsum was used as a retarder for cement[1,2], mineralizer[3], to produce sulfuric acid and cement[4], andEffects of Clinker Contents of Different C3A and C4AF on the