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The article deals with the problems of bleeding at different scale levels. It is noted that the problems of bleeding in concrete and mortar mixtures a...
Issue №5, 2022
Section: Science and production
Keywords: bleeding, aggregative instability, colloidal forces, electrokinetic potential, hydration, cement phases, ettringite
Autor: L. D. Shakhova, V.M. Konovalov.
The potential of sulfoferrite clinkers synthesized from iron-containing industrial wastes as an expanding additive in sulfoferrite cements was investi...
Issue №3, 2019
Section: Science and production
Keywords: sulfoferrite clinker, ferric ettringite, portlandite, expanding additive, linear expansion, composite sulfoferrite cement
Autor: I.N. Borisov, A.A. Grebenyuk.
The study concentrates on the examination of crystalline and amorphous phase assemblage formed in ettringite-rich systems as a function of calcium alu...
Issue №1, 2019
Section: Science and production
Keywords: hydration, ettringite, calcium aluminate cement, gypsum, Portland cement.
Autor: E. Qoku, T. Bier, G. Schmidt.
The influence of pyrocatechin on hydration of Portland cement in dosages of 0.02-0.1% by weight was investigated by solid-state NMR spectroscopy o...
Issue №6, 2016
Section: Science and production
Keywords: pyrocatechin, Portland cement, hydration, setting, ettringite, NMR spectroscop
Autor: A.S. Brykov, N.S. Paritskaya, M.V. Mokeev.
Experimental data and production practices in handling cements not containing Portland clinker are analyzed. Conclusions on the effect of ettringite r...
Issue №4, 2016
Section: Science and production
Keywords: cement, ettringite, strength, expansion
Autor: W. Kurdowski.
The thermodynamic analysis of the reaction of ettringite synthesis of differently composed aluminate phases allowed to rank them by the activity of in...
Issue №2, 2016
Section: Science and production
Keywords: ettringite, sulphate corrosion, aluminate phases, ions activity
Autor: I.S. Rakhimbaev, N.M. Tolypina.
Thaumasite exists as a rare mineral of the calcium carbonate silicate sulphate hydrate type that was first discovered by the Swedish geologist Nordens...
Issue №2, 2012
Section: Concrete
Keywords: thaumasite, ettringite, carraraite, concrete
Autor: J. Bensted.
The article describes the role of alkalis in the clinker production and their influence on the durability of concrete. Since the dry process increases...
Issue №1, 2015
Section: Science and production
Keywords: cement production, build-ups formation, bypass, concrete durability, alkali silica reaction, ettringite formation.
Autor: W. Kurdowski.
New accelerator on organic base has been developed. While combined with superplasticizersit it allows to realize energy-efficient technologies for rei...
Issue №1, 2015
Section: Concrete
Keywords: hardening accelerator, superplasticizer, energy-efficient technology, ettringite
Autor: A.I. Vovk, O.V. Zamuruev, P.D. Androsov, S.V. Mikheev, T.V. Dubyakov.
The paper offers an advanced scientific and practical understanding of the sulfate corrosion affecting Portland cement concretes and examines its most...
Issue №6, 2014
Section: Concrete
Keywords: sulphate attack, Portland cement concrete, ettringite, thaumasite, gypsum
Autor: A.S. Brykov.

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