Low-permeability Fiber-reinforcement Concrete of Composite Binder

The subject of this work is the low permeable concrete which is produced by a novel composite binder. The binder is produced through joint grinding of the Portland cement, fly ash, and limestone together with superplasticizer using a vario-planetary mill. Grinding of active mineral supplements allow...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 463; no. 2; pp. 22058 - 22063
Main Authors Fediuk, R, Mochalov, A, Timokhin, R
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 31.12.2018
Subjects
Cement
Clinker
Crystallization
Fiber reinforcement
Fly ash
Grinding mills
Industrial wastes
Limestone
Planetary mills
Portland cements
Slaked lime
Superplasticizers
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Summary:The subject of this work is the low permeable concrete which is produced by a novel composite binder. The binder is produced through joint grinding of the Portland cement, fly ash, and limestone together with superplasticizer using a vario-planetary mill. Grinding of active mineral supplements allows crystallization of ash particles as a result of the binding of Ca(OH)2 during hardening alite, which intensifies the clinker minerals hydration process; the presence of fine grains limestone also leads to the hydrocarboaluminates calcium formation. The highest strength has been measured when 45 wt.% of Portland cement is replaced with industrial waste. This higher strength of milled Portland cement is due to the increased formation of "needle-like" and "stem-like" crystals. In general, the reduction in capillary porosity of compositions modified by the technogenic waste more than 2 times should be noted for all specimens compared with reference specimen.
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ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/463/2/022058