COMPOSITION, STRUCTURE AND PHYSICAL - CHEMICAL PROPERTIES OF PHOSPHOGYPSUM
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Abstract
Phosphogypsum is a grayish powdery mass of various moisture content collected in piles. In the process of processing Karatau phosphorites, it is formed from the conversion to phosphoric acid in the production of phosphorus fertilizers. According to information, the total amount of phosphogypsum accumulated in Uzbekistan is approximately 80 million. tons, of which 45 million in Almalyk chemical plant, 25 million in Samarkand chemical plant, 10 million in Yangikokan chemical plant. is a ton. Currently, the Yangikokan chemical plant is closed. 2,570,000 tons of phosphogypsum in the amount of 1,580,000 tons at the Samarkand chemical plant are dumped into heaps every year. The average chemical composition of phosphogypsum, in %, is as follows: CaO 26; SO3 36; SiO2 15; Al2O3 0.3; Fe2O3 0.2; MgO 0.01; P2 O5 1.2; fluorides 0.1-0.4.
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References
Sultanov A.A., Tulaganov A.A., va boshq. Qurilish materiallari va materiallar texnalogiyasi. Darslik. Samarqand. 2013. 495 b.
Maxmudova N.A. Bog‘lovchi moddalar T., TAQI, o'quv qo'llanma 2012. - 118 b. «Kolorit», Xarikov. 2004. 158 s.
Гольдштейн Л.Я., Ребин Е.В. Фторангидрит-интенсификатор процесса обжига сырьевой смеси. Цемент,1978 с 16-17.
Новосадов В.К., Агеенко В.Е., Киселев А.В., Гальперина Т.Я Гранулированный фосфогипс-регулятор сроков схватывания цемента. – Л., Сторйиздат, 1985, - 160 с.
Атакузиев Т.А., Мирзаев Ф.М. Сульфоалюминатные цементы на основе фосфогипса. - Ташкент, ФАН, 1979, 152 с.
Мирходжаев М.М., Атакузиев Т.А., Мирзаев Ф.М. Промышленное получение опытной партии декоративного сульфоалюминатно-силикатного цемента из фосфогипса. Строительство и архитектура Узбекистана, Ташкент, 1974, №1, с 5-6.
Abdumuminov O R. EFFICIENT USE OF LOCAL WASTE IN THE PRODUCTION OF BUILDING MATERIALS. In Volume 3, Issue 8 of Web of Scientist: International Scientific Research Journal (WoS) Aug., 2022.
Abdumuminov.O.R. ECONOMIC EFFICIENCY OF RATIONAL USE OF SECONDARY RESOURCES. European Scholar Journal (ESJ) Available Online at: https://www.scholarzest.com Vol. 3 No.3, March 2022 9. Abdumuminov.O.R. Sh.Raximov.Z. Axmedov. The Development of Compositions and Research of the Properties of Fine Concrete. AMERICAN JOURNAL OF SOCIAL AND HUMANITARIAN RESEARCH. November, Vol. 4 No. 9 (2021).
Abdurakhimov,A.A Application of ASH of Heat Power Plants in Mixtures Central Asian journal of theoretical and Applied sciences Volume:02 Issue:11 / Now 2021 Issn:2660-5317. 11. AA. Abdukhalimzoda, THE USE OF FILLER MIXTURES ASSESSMENT OF THE CURRENT STATUS. Galaxy International Interdisciplinary Research Journal, Vol 9 No (12), 467–470 (2021)
TF Khursanovich DRY CONSTRUCTION MIXED FOR FOAM CONCRETE Academicia Globe: Inderscience Research 3 (05), 201-204
ФХ Турапов, АК Холтаева ИССЛЕДОВАНИЕ ВЛИЯНИЯ СУПЕРПЛАСТИФИКАТОРОВ НА ФИЗИКО-МЕХАНИЧЕСКИЕ СВОЙСТВА БЕТОНА ПРОБЛЕМЫ ГЕОЛОГИИ И ОСВОЕНИЯ НЕДР, 477-478 14. AА Абдуҳалимзода СУПЕРПЛАСТИФИКАТОР ҚЎЛЛАБ ТЎЛҒАЗУВЧИ ҚОРИШМАЛАРНИНГ ХОССАЛАРИНИ ЯХШИЛАШ Spectrum Journal of Innovation, Reforms and Development, 8, 250–254. Retrieved from https://sjird.journalspark.org/index.php/sjird/article/view/295 15. Abdurahimov Abdukarim Abduhalimzoda. (2022). LIGHTWEIGHT CONCRETES BASED ON POROUS AGGREGATES. American Journal of Business Management, Economics and Banking, 5, 15–18.