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Usage perspectives of composite modified cements
Konferencja
V Konferencja Naukowa Rzeszowsko-Lwowsko-Koszycka Aktualne problemy budownictwa i inżynierii środowiska, Rzeszów, 25-26 września 2000. Cz.1. Budownictwo
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Abstrakty
Research results of the activity of composite cements modified with the alkalis containing substantial quantity of aluminium-silicate component in the form of the natural pozzolana and production side effects are presented. Composite modified cements are obtained as a result of compatible grinding of Portland cement clinker and active mineral additive of natural product and by-product. The specific surface of cements after grinding was fluctuating from 430 m2/kg to 400 m2/kg. The modification of the composite modified cements is done with the help of compounds of alkaline metals namely with the salt cake and the soda-sulfate mixture. The possibility of obtaining of composite modified cements containing Portland cement clinker in quantity from 20 to 65% has been proved. Activity of these cements is not less (and in some cases even bigger) than the activity of their analog - Portland cement. The modification of composite cements with compounds of alkaline metals provides the chemical interaction on the "artificial stone - aggregate" interfaces, as well as chemical likeness between the binder new product and products that appear in the contact zone. This will promote the improvement the structure of material and as a result the rise of stretching by bending that gives the special actuality to their use in the monolithic layers of the pavement.
Rocznik
Tom
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493--497
Opis fizyczny
Bibliogr. 4 poz.
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Bibliografia
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Bibliografia
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bwmeta1.element.baztech-article-BTB2-0049-0094
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