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1 Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

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Materihali dlja dorozhnihkh odjagihv na osnovih kompozicihjjnikh modifihkovanikh cementihv

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Solodkijj S. , Usov B. , Rogal's'kijj R.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

2000

tom z. 32[180], cz.1

499-505

In the article we can find research results of cement solids and sand concrete based on composite modified cements (CMC) and also their analog based on traditional Portland cement. CMC has been received in the result of compatible grind of Portland cement (20-65% from mass) and of active mineral supplements of technique and natural origin with the specific surface Smn = 400 kg/m2. Modification of CMC has been done with combination of alkaline metals that is Na2SO4 and sodium-sulphate mixture. The results of physical and mechanical characteristics and parameters of demolition mechanics have shown that materials based on CMC have higher firmness in stretching and bending and crack resistance if to compare with traditional analogs. That allows us to use them in monolithic strata of the road cover and to predict the higher perennial use of the cover as well. Such a result has been received when we fortified contact zones between artificial stones and aggregate with help of chemical reaction on the phase division surface and increase of system homogeneity in the whole. Utilization of CMC in the building of the road and in the production of building materials allows us to settle some problems of energetic and decrease resource and annihilation of industrial by-products.