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Investigation of Phosphate Mining Waste for Construction

It is found that phosphogypsum can be used as a suitable aggregate in concrete for applications such as building products and road construction. Presence of calcium sulfate does not adversely affect the long‐term properties of the cement‐based mixtures containing phosphogypsum.

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Phosphogypsum Management and Opportunities for Use

The 'wet process' for producing phosphoric acid creates 5 tonnes of phosphogypsum (PG) (calcium sulphate) for every tonne of acid. Billions of tonnes of PG have been produced to date, much stored on land in stacks or piles. Some 160-200 million tonnes of PG are likely to be produced every year for the foreseeable future. Is it a toxic waste, or a valuable resource?

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EFFECT OF CALCINED PHOSPHOGYPSUM IN PORTLAND

Abstract - Phosphogypsum (PG) is a solid by-product of the production of phosphoric acid, a major constituent of many fertilizers, chemical industry materials. As it is contaminated with the impurities that impair the strength development of calcined

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Storage Tank Foundation Design & Construction - EuroTankWorks

Construction experience in industrial and civil building shows that in most cases piles can help to achieve the acceptable level of construction subsidence. However, the practice of piled foundation in tank construction shows that it does not always help to get the desired result.

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A Review of Effective Utilization of Waste Phosphogypsum

Phosphogypsum in ordinary Portland cement mixes considerably retards setting time but does not contribute to produce unsound cement paste. Phosphogypsum can be economically used up to five percent as an ingredient or admixture of cement-mortar mix, both for

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(PDF) Application of phosphogypsum in soil stabilization

EPA. Potential uses of phosphogypsum and associated risks; back- [24] Nalbantoglu Z. Effectiveness of class C fly ash as an expan- ground information document; EPA 520/1-91-029, 1992. sive soil stabilizer. Construction and Building materials 2022;18: [19] EURATOM Council Directive 96/26 EC, 1996. 377–81.

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XRD & SEM studies of Fly-ash and Phosphogypsum based

Phosphogypsum. When combined with alkaline substances like sodium hydroxide and sodium silicate, these materials produce a mixture with cementitious properties. This paste can be used to make construction materials like bricks, filler materials, and eventually, can be used as a replacement for Cement.

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Calcium Hydroxide Washing Treatment of Jordanian- IIETA

 · Furthermore, phosphogypsum can be widely used in road construction, agriculture as supplementary fertilizer, manufacturing of insecticides and fungicides, aggregate in Portland cement concrete, insulation material in houses and other buildings, landfills, Plastic industry, Sugar industry, paper industry, fire suppression, remove toxic elements from the soil, animals

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CN103708748A - Modified phosphogypsum material used for

The invention discloses a modified phosphogypsum material used for sea reclamation. Phosphogypsum is modified by raw material selection and proportioning so as to make the phosphogypsum suitable for sea reclamation. The materials comprise phosphogypsum and composite yellow phosphorus slag gelling powder. The composite yellow phosphorus slag

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Refinement of waste phosphogypsum from Prahovo, Serbia

Article Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering Josip I. Išek1, Lazar M. Kaluđerović2*, Nikola S. Vuković3, Maja Milošević1, Ivana Vukašinović2 and Zorica P. Tomić2 1University of Belgrade, Faculty of Mining and Geology, Đušina 7, 11000 Belgrade, Serbia; 2University of Belgrade,

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Civil buildings using reinforced concrete structure

Civil buildings using reinforced concrete structure For the construction using reinforced concrete or mixed structure, concrete + masonry, our company has extensive experience in the field performing as a general contractor or subcontractor, a wide range of works, from consolidation, individual houses or duplex to office buildings or shopping centers.

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ISO - Measuring the carbon footprint of buildings in a

 · ISO 16745, Sustainability in buildings and civil engineering works – Carbon metric of an existing building during use stage, Parts 1 and 2, will provide, in a simple way, a set of methods for the calculation, reporting, communication and verification of a collection of carbon metrics for GHG emissions arising from the measured energy use during the activity of an

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Recycling of Oily Sludge as a Roadbed Material- Hindawi

 · In addition to the use of cement-based cementitious materials for waste treatment, phosphogypsum-based cementitious materials can also be used in waste treatment. Ding et al. used PG and cement to solidify dredged clays with high water content; the results showed that the unconfined compressive strength of solidified soils increases remarkably with the addition

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Radon exposure due to the use of phosphogypsum in civil

Different studies have showed the possibility of using phosphogypsum as calcium and sulphur sources in agriculture, as a soil conditioner that contains elevated levels of sodium, and as a substitute of natural gypsum in the production of cement bricks and road cons

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(PDF) Use of phosphogypsum -tar based material in the

PDF | With the growing awareness of environmental issues, much research is currently devoted to the development of new solutions. The present work aimed |

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The possibility of the phosphogypsum use in the production

 · In this paper, phosphogypsum with the content of 226Ra of about 500 Bq kg-1 was used as a clay additive in mass ratios of (0-40) % and its influence on the radiological and mineralogical characteristics of the obtained brick samples was monitored. In this paper, phosphogypsum (PG) with the content of 226Ra of about 500 Bq kg-1 was used as a clay

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Properties of Stones | Requirements of Good Building Stones

Hence even laterite can be used safely for a single storey building because in such structures expected load can hardly give stress of N/mm 2. However in stone masonry buildings care should be taken to check the stresses when the beams (Concentrated Loads) are

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A new civil engineering material: normal temperature

 · Phosphogypsum (PG) is a by-product from the industry of phosphate fertilizer industry. Approximately 5 tonnes of PG are generated for per ton of phosphoric acid production. The accumulation of PG occupies huge amounts of land resources and results in serious environmental risks. In this study, a new civil engineering building material product, normal

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Recycling of radioactive phosphogypsum wastes - ScienceDirect

 · The presented properties of phosphogypsum made it possible to assess the extent to which this waste product can be used to obtain building products. The properties of the initial phosphogypsum do not allow its direct use for the production of construction mixtures without additional processing.

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Radon exhalation from phosphogypsum stabilized in sulfur

ramic waste) as building material [12-15]. The sulfur polymer cement, SPC, has been used in civil engineering (column supports, pump foundations, walls in storage areas, etc.) due to its excellent properties, which for certain applications are superior to ordinary Portland cement (OPC). The SPC presents high durabil-

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Comparative Study of Phosphogypsum and Phosphogypsum

1, 2, 3, 4(Department of Civil Engineering, Maulana Mukhtar Ahmad Nadavi Technical Campus, India) Abstract : The growing use of phosphoric acid production by product phosphogypsum increased. Around 6 million tons of phosphogypsum are produced every year in India. Flyash is a byproduct from thermal power station around

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A comparative study on the use of fly ash and phosphogypsum

According to chemical composition of clay, it can be classified as montmorillonite clay mineral (Swamy 1986). The chemical analyses of these materials are presented in table 1. Specific gravities of clay, fly ash and phosphogypsum are, and, respectively. The type of water used in the experiments was tap water.

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Index Terms IJSER

These panels can be used as alternative building ma-structural design manual for conducting the design of buildings made with GFRG. Phosphogypsum is a byproduct of fertilizer industries. ApartInternational Journal of Civil and Structural Engineering Re-search,Vol. 2, No 2, pp161 -165, March 2022 IJSER.

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Opportunities for using recycled materials in the

of buildings and civil engineering works and from the valorisation of wastes or by-products from other industrial sectors. These are new materials, created from an industrial waste treatment process, not from recovered materials (such as re-used wooden beams, tiles, etc.).

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Experimental Investigation on the use of Light- IJERT

 · Apart from being used as a fertilizer, building material and soil stabilization agent, about 85% of phosphogypsum is dumped in the vicinity of phosphate factories, requiring large disposal areas. Expanded polystyrene (EPS) is a light weight cellular plastic material consisting of fine spherically shaped particles.

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A new civil engineering material: normal temperature

Phosphogypsum (PG) is a by-product from the industry of phosphate fertilizer industry. Approximately 5 tonnes of PG are generated for per ton of phosphoric acid production. The accumulation of PG occupies huge amounts of land resources and results in serious environmental risks. In this study, a new civil engineering building material product, normal

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CIVIL ENGINEERING MANUAL - Department of Public Works and

The General Conditions of Contract for use in connection with Works of Civil Engineering Construction (6th Edition, 1990); issued by the South African Institution of Civil Engineers. PW 677 The departmental Conditions of Contract as published by the Department of Public Works, mainly applicable to Building Contracts. PW 772

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Commercialisation of Innovative Building Material Technologies

Disposal of Phosphogypsum is not only a serious techno-economic problem but creates environmental pollution and requires large land area for dumping. Gypsum as a building material has been in use since ancient times. First known use of Gypsum dates back to 3700 BC in Egypt for the construction of Pyramids.

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Valorization of industrial by-product: Phosphogypsum

 · The use of wastes in building materials is studied by different researchers, which are looking for answers about the environmental benefits of waste valorization (Mashifana, 2022). Besides PG, different types of wastes have been used in civil construction, as red ceramic (CW), porcelain (PW), and rice husk ash (RHA).

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Iodine & phosphogypsum emissions - Civil/Environmental

Civil/Environmental engineering general discussion Forum; Iodine & phosphogypsum emissions. thread194-390307. Forum: Search: FAQs: Links: MVPs: Menu. Iodine & phosphogypsum emissions Iodine & phosphogypsum emissions crizalde (Chemical) (OP) 29 Jun 15 05:36. thread1533-342744: Welcome Good Day! Sir Birkato, I'm working as consultant

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Recent Development in Concrete By Replacing Phosphogypsum

Phosphogypsum can be used with fly ash as alternative material in production of masonry mortar, controlled low-strength materials and solid bricks to bring economy, conserve energy and to reduce environmental pollution. ???? Portland cement can be replaced with phosphogypsum to develop a good and hardened concrete to achieve economy.

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Using waste materials to create sustainable building

 · Their paper published in the Journal of Materials in Civil Engineering, "Mechanical and Thermal Properties of Sustainable Composite Building Materials Produced by the Reprocessing of Low-Density Polyethylene, Biochar, Calcium Phosphate, and Phosphogypsum Wastes", looks at using various forms of waste to create brick composites.

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Alternative Building Material Using Industrial and

The conventional building material used in the construction industry in India is the burnt clay brick which has high embodied energy (/m K). It causes significant environmental hazards as it consumes considerable amount of top soil. Hence there is a need to produce environmentally responsive building materials for the construction of new buildings in order to meet the rapid

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Effect of Phosphogypsum and Fly ash on the CBR and UCS of

Abstract - This paper describes the use of Phosphogypsum and Fly Ash for soil stabilization. Modified proctor test, California bearing ratio test and unconfined compression strength test were carried out. The fraction of Phosphogypsum is used in this paper is 1,3,5 and 7 along with fixed value of fly ash 20%.

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Potential use of phosphogypsum in paving blocks | Green

 · Materials. Characteristics of phosphogypsum. The PG samples used in preparing paving blocks were obtained by oven-drying the PG sludge collected at the outlet of a phosphoric acid factory at Gabès City in the south-east of Tunisia (

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Hollow Block Partitions | Terracotta Partitions | Civil

 · Hollow Block Partitions Partitions are used to create distinct and specific spaces for specific purposes usually used in a residential construction which are generally residential homes. Hollow Block Partitions are made up of different materials. The usually used materials for making hollow clay blocks are: Clay or Terracotta Hollow Blocks Fly ash Hollow Blocks

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Potential uses of phosphogypsum and associated risks

 · Phosphogypsum is a by-product from the production of phosphoric acid used in the fertilizer and chemical industries. Large production rates and problems associated with its stockpiling have led researchers to seek alternative uses for phosphogypsum, primarily as a construction material.

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Effect of Phosphogypsum on the Properties of Portland

Treated phosphogypsum can be used as an ingredient of plaster [6, 7, 8]. The most important and motivating use of phosphogypsum could be in the construction industry. In the manufacturing process of cement, phosphogypsum could be used as a replacement of natural gypsum which plays the role of a set retarder [9, 10], or to reduce the clinkerization

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USE OF PHOSPHOGYPSUM IN EMBANKMENTS

use of phosphogypsum in embankments utilisation du phosphogypse en remblai. to continue the research into the conditions to be fulfilled to enable phosphogypsum to be used in highway embankments, improved subgrades or industrial floor slabs.

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RADIOLOGICAL IMPACT OF THE APPLICATION OF PHOSPHOGYPSUM

recommendations which apply specifically to the use of phosphogypsum in the civil construction. This paper aims to present a review of the research carried out at IPEN, focusing in the radiological implications of using phosphogypsum as building material: bricks and plaster.

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