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1 Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

1 2000

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w słowach kluczowych: komponent aluminiowo-silikatowy

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Perspektivi zastosuvannja kompozicihjjnikh modifihkovanikh cementihv

100%

Solodkijj S. , Rusin R.

2000

tom z. 32[180], cz.1

493-497

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.