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Semantic Scholar extracted view of "Effect of fibers addition on mechanical properties of eco friendly phosphogypsum based composite at high temperatures" by Longjian Zhang et al Semantic Scholar s Logo Search 221 864 472 papers from all fields of science Flexural performance of GFRP sheathed cold formed steel composite panel filled
·Abstract Phosphogypsum PG is a by product of the phosphate fertilizer industry that is produced during the phosphoric acid production process Annual global PG production ranges between 100 to 300 Mt with only 15% of that utilized while the rest is usually placed on large dumps with potential serious human and environmental impacts The aim of
·Solid waste phosphogypsum PG generated during phosphoric acid production was used as the sole raw material to prepare a new paper free and fiber free plasterboard
·This paper studied the effects of different PG application rates on soil respiration soil enzyme activity and soil community revealing the mechanism of PG on soil enzyme activity and microorganism
·Phosphogypsum PG is a by product of phosphorus fertilizer that is typically stacked near production sites Phosphogypsum contains trace elements and naturally occurring radioactive materials which may be hazardous to the surrounding environment Phosphogypsum stack reclamation typically involves placing a soil cap and seeding grass to create a barrier for
·phosphogypsum and paper mill sludge Suryasikha Samal a Sunanda Sahoo b and C S K Mishra a a Department of Zoology College of Basic Science and Humanities Orissa University of Agriculture and
·Only 15% of all phosphogypsum produced in the world is recycled; the remaining volume is stored or dumped into water reservoirs which causes significant damage to the environment [] In this connection the search for ways to use PG as a resource for the production of gypsum binders is a promised trend that will solve the environmental problems in
·Phosphogypsum PG is a calcium sulphate dihydrate and a by product of the phosphate fertilizer industry It is produced in huge quantities 300 MT/year but only 15% of the PG produced is recycled SWSR main report Food and Agriculture Organization of the United Nations and Intergovernmental Technical Panel on Soils Google Scholar
·Moreover this paper summarizes the research basis of multi field and all round treatment and disposal of phosphogypsum which reduces repeated researches and development as well as the treatment
·This study contributes to sustainable construction practices by exploring the use of phosphogypsum a commonly discarded byproduct in the production of recycled aggregates Addressing both environmental and economic aspects of sustainability we investigate the feasibility of employing phosphogypsum as a primary raw material in collaboration with
·The paper presents the results of laboratory studies of more than 390 samples of phosphogypsum neutralized with construction lime The deformation and strength properties as well as the water permeability were determined on specially prepared samples with the relative compaction of and by methods used in engineering and
·Solid waste phosphogypsum PG generated during phosphoric acid production was used as the sole raw material to prepare a new paper free and fiber free plasterboard Dehydrated PG was granulated with water press formed and hydrated with intermittent pressing into paper free and fiber free plasterboards with bending strength of MPa
·The effects of varying concentrations of urea phosphogypsum and paper mill sludge PMS on the morphology histology tissue protein content lipid peroxidation LPX activities of lactate
·Phosphogypsum PG the main industrial by product of phosphate fertilizer industry primarily consists of calcium sulfate dihydrate However it contains various impurities with variable quantities depending on the origin of the phosphate rock These impurities can restrict the reuse of phosphogypsum as a secondary primary resource
·Light weight wall panels are made from cement glass fibres flyash and Phosphogypsum mixed in predefined proportions that is defined by using design of experimentation The proportion of the ingredients are decided and specimens are made by partially replacing cement with Phosphogypsum which contains Calcium oxide as main
·Fiber content ranged from percent to percent Phosphogypsum content was varied from percent to percent Water/ Cement Phosphogypsum ratio was varied from to Thickness of panels tested was 3/8 in 1/2 in and 5/8 results indicate that phosphogypsum can be used in concrete as a fine aggregate
·This paper presents the valorization of two Tunisian phosphogypsums referred as G and S in calcium sulfoaluminate cement in the following proportions 70% phosphogypsum 30% calcium
·In this paper the geotechnical properties of the phosphogypsum in Aqaba Jordan are determined and embankment stability analysis is carried out as the purpose of this study is to evaluate the
·In phosphogypsum P 2 O 5 generally exists as H 3 PO 4 Ca H 2 PO 4 2 ·H 2 O CaHPO 4 ·2H 2 O and Ca 3 PO 4 2 O 5 found adhered to the surface of gypsum crystals is water leachable whereas P 2 O 5 present in the crystal lattice is difficult to be removed by simple water washing The fluorides are normally present as a mixture of NaF Na 2 SiF 6 Na
Phosphogypsum PG is a type of synthetic gypsum generated during the production of phosphoric acid From Journal of Building Engineering 2021 From the perspective of bibliometrics this paper systematically and comprehensively describes the research progress trends and hot spots of phosphogypsum resource utilization This article is
·Phosphogypsum PG is a byproduct of the wet manufacturing process for phosphoric acid and is considered an industrial waste material Around 5 tonnes of PG are generated for every 1 tonne of phosphoric acid production [1] As the phosphorus chemical sector has expanded rapidly in countries like the Middle East Africa Russia the United States and
·Phosphogypsum PG is a bulk industrial solid waste of wet process phosphoric acid production Every ton of phosphoric acid production generates as many as 4 6 tons of PG including more than 90% of CaSO 4 ·2H 2 O a small amount of phosphorus fluorine organic matter oxides heavy metals radioactive substances and other impurities that have serious
1PG Student Dept of Civil Engineering Mar Athanasius College of Engineering Kerala India 2Assistant Professor Dept of Civil Engineering Mar Athanasius College of Engineering Kerala India Abstract Phosphogypsum PG is a solid by product of the production of phosphoric acid a major constituent of many fertilizers chemical industry materials
·To develop lightweight high strength and environmentally friendly prefabricated panels this paper proposed a novel GFRP plate sheathed cold formed steel CFS composite panel GFRP CFS panel filled with lightweight phosphogypsum LPG and investigated its flexural performance experimentally numerically and theoretically Firstly nine full scale
·Substantial volumes of phosphogypsum PG are generated globally as a by product in phosphoric acid production categorizing it as a widespread waste Managing such substantial amounts of PG poses challenges due to its composition containing various pollutants including persistent rare earth elements REEs with non biodegradable characteristics
·To sum up calcination achieved better purification results and improved the properties of gypsum plaster [24 28] Further the phase transformation of PG and harmful impurities are related to the calcination temperature [24 36] Moreover it may be noted that as in many published studies impurity is the main factor affecting the properties of the plaster [37 38]
