Clinkerless slag-silica binder: hydration process and hardening kinetics (part 2)

Станиславовна, Славчева Галина; Владимировна, Артамонова Ольга; Александровна, Шведова Мария; Александрович, Хан Максим

doi:10.18720/mce.97.12

Cited by 3 publications

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“…Modern building materials science offers a lot of theoretical insights and case studies on the use of finely-dispersed active mineral additives. Their application in the production of concrete and reinforced concrete makes it possible (Guvalov et al, 2017;Lothenbach and Winnefeld, 2006;Ngo et al, 2020a;Slavcheva et al, 2020;Zvezdov and Mikhailov, 2001):…”

Section: Introductionmentioning

confidence: 99%

Untitled

2022

AEJ

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Section: Introductionmentioning

confidence: 99%

Untitled

2022

AEJ

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“…The use of vibration technology such as periodic vibration, vibration treatment with shield braking, step changing the vibration frequency, and Vibro forming mixtures that are removed during mixing can have positive effects. A certain effect is also achieved when using sands with different particle-size distributions, which makes it possible to obtain denser and stronger intergranular partitions [11,12,13].…”

Section: Introductionmentioning

confidence: 99%

Modified Aerated Concrete Based on Man-Made Waste

Tkach¹

2022

GEOMATE

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This article presents the results of experimental studies on aerated concrete based on industrial waste with improved operational, physical, chemical and mechanical properties; modified homogeneous structures are obtained in this material as a result of its compaction and hardening. The structure of the modified aerated concrete and its influence on the physical, mechanical and hydrophysical properties are studied in detail. Aluminium powder is used as a foaming agent. The content of active aluminium is 82%. To give the powder hydrophilic properties, it is treated with an aqueous solution of surfactants. The use of complex organometal modifiers in products made of modified and non-autoclaved aerated concrete with industrial waste, such as phosphogypsum, significantly increases the likelihood of obtaining high-quality products by controlling the processes of gas evolution and structure formation under the impact of the organometal modifier.

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Structural Characteristics and Performance of Concrete With a Composite Modifying Additive

Zhilkibayeva¹,

Yestemessova²,

Zhakipbekov³

et al. 2022

AEJ

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Introduction: The paper addresses the effect of a composite modifying mineral additive based on waste — tailings from the Balkhash Mining and Processing Plant — and microsilica on the structural characteristics and performance of heavy concrete. Purpose of the study: We aimed to select optimal B25 and B35 concrete mixes based on the MV-D20 modified binder with the composite additive in its composition and evaluate the characteristics of concrete. Methods: In the course of the study, standard methods were used to design concrete mixes and test the characteristics of concrete. Proportioning was performed in accordance with State Standard GOST 27006-86 “Concretes. Rules for Mix Proportioning”. The physical and mechanical properties of heavy concrete were determined in accordance with State Standard GOST 10180-2012 “Concretes. Methods for Strength Determination Using Reference Specimens”. The strength of concrete was assessed in accordance with State Standard GOST 18105-2018 “Concretes. Rules for Control and Assessment of Strength”. Results: It was established that in terms of the rate of strength gain, the designed heavy concrete mixes are fast-curing. In the initial curing period of 7 days, B25 and B35 concretes gain 90.1 and 85.4% of the required standard strength, respectively. The average values of water absorption in B25 and B35 concretes are 4.20 and 3.46%, respectively. In terms of water tightness, concrete mixes have W10 and W12 grades. The application of the MV-D20 modified binder with the composite additive consisting of tailings and microsilica instead of standard sulfate-resistant Portland cement will reduce the relative deformation of B35 concrete in an aggressive environment by 12%.

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Clinkerless slag-silica binder: hydration process and hardening kinetics (part 2)

Cited by 3 publications

References 0 publications

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Modified Aerated Concrete Based on Man-Made Waste

Structural Characteristics and Performance of Concrete With a Composite Modifying Additive

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