- Mon - Sat 8:00 - 18:00
- [email protected]
- 0086-21-58386256
2.1. Experimental procedure. In the present study the optimum mix of fly ash (FA)-lime (L)-phosphogypsum (PG) was arrived by trial. On the basis of literature study, the content of lime and phosphogypsum was varied from 2% to 10% and 0.5–4% respectively and further the optimum mix was arrived from the results of Standard …
In this study, phosphogypsum was stabilized by lime to improve the mechanical properties [California bearing ratio (CBR), resilience modulus, unconfined …
best mixing ratios for phosphogypsum–fly ash–lime–clay mixtures (phosphogypsum: fly ash: lime: clay) were 15:20:6:59 and 15:25:8:52. The above research showed that phospho-gypsum has good prospects for applications in highway engineering. At present, there are few studies on the road performance and …
Residual deposits of Phosphogypsum are readily available in large quantities in South Africa and currently are landfilled or pumped into the sea, as there are limitations to engineering applications due to the radionuclides content. In this study, mild acid treated residual phosphogypsum was stabilized with Lime Fly Ash (LFA) binder, …
DOI: 10.5755/J01.MS.24.3.18232 Corpus ID: 139365625; Geotechnical Properties and Application of Lime Modified Phosphogypsum Waste @article{Mashifana2018GeotechnicalPA, title={Geotechnical Properties and Application of Lime Modified Phosphogypsum Waste}, author={Tebogo Mashifana and Felix Ndubisi …
DOI: 10.1016/j.jclepro.2020.122660 Corpus ID: 224958704; Application of lime neutralised phosphogypsum in supersulfated cement @article{Liu2020ApplicationOL, title={Application of lime neutralised phosphogypsum in supersulfated cement}, author={Shuhua Liu and Peipei Fang and Jun Ren and Shefeng Li}, journal={Journal of …
ash–lime–phosphogypsum composite as the base course in road pavements. Al-Zaidyeen and Al-Qadi (2015); James and Pandian (2015); and de Rezende Lilian et al. (2017) found that
Eco - concrete made with phosphogypsum-based super sulfated cement; Effect of curing temperature and particle size distribution on unconfined compressive strength of raw and treated fly ash-lime modified phosphogypsum waste; Optimization of non-autoclaved aerated concrete using phosphogypsum of industrial waste based on …
To improve the early strength and seven-day compressive strength of the PG-lime mixture, Shen et al. (2007) and Shen et al. (2008) gave a more precise range, that is, the content of lime should be ...
DOI: 10.1016/j.conbuildmat.2023.132994 Corpus ID: 261115321; Mechanical properties of phosphogypsum-soil stabilized by lime activated ground granulated blast-furnace slag @article{Zheng2023MechanicalPO, title={Mechanical properties of phosphogypsum-soil stabilized by lime activated ground granulated blast-furnace …
Stabilized with Lime and Phosphogypsum Ambarish Ghosh1 Abstract: Recycling of waste material is one of the effective solutions of its disposal problem. Fly ash produced by coal-based thermal
1. Introduction. Phosphogypsum (PG) a by-product from the phosphoric acid industry is a remarkable solid waste, and about 4.5–5.0 tonnes of dry-based PG is outputted per ton of phosphoric acid (as P 2 O 5) recovered [].Approximately 20 million tonnes of PG is generated in China every year, and its utilization ratio is not more than …
Request PDF | On Jan 1, 2022, Huajin Wang and others published Experimental Study on Phosphogypsum-Modified Cement-Lime-Stabilized Red Mud in Subgrade Material | Find, read and cite all the ...
Massive shield tunnel muck is being landfilled without effective use due to high moisture contents and poor engineering properties, which not only leads to soil resources waste, but also occupies a large amounts of land sources.In this study, industrial waste phosphogypsum (PG) was recycled to improve the tunnel muck with lime, and …
Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag T.P. Mashifana1, 2, F.N. Okonta2, F. Ntuli1 1University of Johannesburg, Department of Chemical Engineering, P.O. Box 17011, Doornfontein 2088, South Africa. Tel.:+27 11 559 6527, Email: [email protected] (Corresponding author)
The flyash-lime-phosphogypsum composite (flyash + 8% lime + 2% phosphogypsum) cured for 28 days can be used as a base/subbase course material in road pavements. View Show abstract
Pore structure is a critical factor affecting the strength characteristics of mine backfill materials. In this paper, based on the mechanical tests on lime modified phosphogypsum cemented backfill (LMPGCB), the microstructure of the LMPGCB sample was characterized by nuclear magnetic resonance (NMR) and scanning electron …
Peng Bo et al. utilized phosphogypsum to modify lime-treated and cement-treated soils, conducting a series of laboratory tests to confirm the feasibility of …
Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag. T. P. Mashifana, F. N. Okonta, F ... F. N. ; Ntuli, F. / Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag. In: Revista Romana de Materiale/ Romanian Journal of …
In this paper, based on the mechanical tests on lime modified phosphogypsum cemented backfill (LMPGCB), the microstructure of the LMPGCB …
Abstract. The resource utilization of phosphogypsum (PG) can reduce the consumption of resources, turn waste into valuables, turn damage into profit, and form a green recycling economy of "resources-products-regenerated resources." The article, combined with the comprehensive utilization of PG, analyzes the existing problems. …
principal curing agents, cement, lime, and phosphogypsum were utilized to enhance red mud. The dosage of the modifier and the level of compaction were two crucial indicators
DOI: 10.1007/s43452-024-00933-6 Corpus ID: 269114202; Highly efficient modified phosphogypsum building gypsum powder and environmentally friendly utilisation in self-levelling mortar
To this end, mixtures of phosphogypsum and fly ash were prepared then activated with varying quicklime additions (beyond Initial Consumption of Lime) to develop different combinations of ...
DOI: 10.1016/j.jhazmat.2019.121808 Corpus ID: 209893466; Adsorption of Cu(II) by phosphogypsum modified with sodium dodecyl benzene sulfonate. @article{Zhao2019AdsorptionOC, title={Adsorption of Cu(II) by phosphogypsum modified with sodium dodecyl benzene sulfonate.}, author={Lina Zhao and Qin Zhang and Xian …
In many instances, subgrade soils which are unsatisfactory in their natural state can be modified by means of adding admixtures or quantities of aggregate or by proper compaction and thus made suitable for highway subgrade construction. ... Unconfined compressive Strength of Bentonite-Lime-Phosphogypsum Mixture Reinforced with …
The study involved utilization of an industrial waste, Phosphogypsum (PG), as an additive to lime stabilization of an expansive soil. Three lime dosages, namely, initial …
Return to Article Details Potential of Bentonite-lime-mix Modified with Phosphogypsum and Reinforced with Sisal Fibres Download Download PDF Allow! We use cookies to enhance your experience. By continuing to visit this site you agree to our use of cookies. More info Cookie ...
Nearly 300 million t of phosphogypsum (PG) are produced every year as a byproduct from phosphate fertilizer production worldwide. Approximately 58% of the PG are stacked, 28% are discharged in coastal waters and only 14% are further processed. This critical review provides an overview of the physical-chemical properties of PG produced …
Lime and phosphogypsum (PG) were used to improve properties of the tunnel muck. The phosphogypsum (PG) was obtained from a phosphate fertilizer plant in Nanjing. ... Effect of modified phosphogypsum on the hydration properties of the phosphogypsum-based supersulfated cement. Constr. Build. Mater., 214 (2019), pp. 9 …