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From the point of view of practice the issue of eliminating the disadvantages of non-autoclaved aerated concrete (NAAC) in comparison with the autocla...
Issue №6
Section: Waste utilization
Keywords: non-autoclaved aerated concrete, high-calcium ash from thermal power plants, phase composition of hydrates, differential thermal analysis
Autor: G.I. Ovcharenko, Y.V. Gilmiyarova.
Light, strong and heat-resistant structures obtained by the interaction of low-calcium fly ash with phosphoric acid may be of interest for the technol...
Issue №2, 2023
Section: Waste utilization
Keywords: low-calcium fly-ash, phosphoric acid, phosphate binder
Autor: A.S. Brykov, M.Ye. Voronkov.
According to the results of many studies and the provisions of standards, it is recommended to make frost-resistant concrete only on the basis of Port...
Issue №4, 2022
Section: Waste utilization
Keywords: freeze-­thaw resistance, frost fracture mechanisms, ground granulated blast­furnace slag, Portland blast­furnace slag cement, water­-cement ratio, cement matrix, structure, calcium hydrosilicates, durability
Autor: I.M. Ivanov, L.Ya. Kramar, K.V. Shuldyakov.
Blended Portland-PFA cement made of basic coal fly ash from TPPs of Kansk-Achinsk basin has been examined. The main parameters of the composition and ...
Issue №4, 2022
Section: Waste utilization
Keywords: ash Portland cement, basic (high-calcium) fly ash, parameters of technology
Autor: G.I. Ovcharenko, E.Yu. Khizhinkova.
The article is focused on the current problem of recycling phosphogypsum, one of the many types of industrial wastes generated in large amounts at OAO...
Issue №3, 2022
Section: Waste utilization
Keywords: artificial gypsum stone based on phosphopolugidrate and calcium sulfate dihydrate, physico-mechanical properties of cement, hydration of clinker minerals
Autor: V.I. Lobachevsky, A.G. Gubskaya, P.I. Pismensky.
High calcium fly ash generated at pulverized solid fuel combustion at thermal power plants in combination with sodium carbonate is an effective dry ac...
Issue №1, 2022
Section: Science and production
Keywords: granulated blast-furnace slag, blast-furnace slag activation, high-calcium fly-ash, sodium carbonate
Autor: A.S. Brykov, M.E. Voronkov.
There is still an ongoing debate on the mechanisms of expansion of calcium sulfoaluminate (CSA) cements, which can be either favorable e.g. in shrinka...
Issue №4, 2021
Section: Science and production
Keywords: calcium sulfoaluminate cement, expansion, durability, pore solution, thermodynamic modeling
Autor: C.W. Hargis, B. Lothenbach, C.J. Mueller, F. Winnefeld.
Belitic Calcium Sulfoaluminate (BCSA) cement, has a history of over 30 years of use in North America. To date, more than 2 million tons of BCS...
Issue №6, 2020
Section: Science and production
Keywords: belite, calcium sulfoaluminate, cement, hydration, phase composition
Autor: E. Bescher, K. Vallens, J. Kim.
Chemical and phase composition of the interface between the cement matrix and steel in reinforced concrete, depending on its age, was studied. It was ...
Issue №2, 2020
Section: Concrete
Keywords: transition zone, reaction of iron with cement matrix, calcium hydroferrite
Autor: W. Kurdowski, B. Trybalska.

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