cold recycling

THE POSSIBILITY OF USING MATERIALS FROM DEMOLISHED BUILDINGS IN COLD RECYCLING TECHNOLOGY FOR ROAD BASE LAYERS

The work investigated the possibility of using construction waste such as asbestos-cement slate, glass, brick and concrete as aggregates in mixtures for the base layers of road pavement made using cold recycling technology. For this purpose, 17 mixture compositions were designed and studied - the control composition and 4 series of compositions, in which the milled fine-grained asphalt concrete was partially replaced by crushed asbestos-cement slate, glass, brick and concrete in an amount of 5-20 wt.%. All studied compositions contained 3% Portland cement and 3% water.

CATIONIC OVER-STABILISED BITUMEN EMULSION IN ROAD CONSTRUCTION - REVIEW

This article describes the classification of cationic bitumen emulsions according to "reactivity" and breaking behaviour characteristics. The methods of researching the characteristics of breaking behaviour for bitumen emulsions of different "reactivity" in accordance with European and Ukrainian regulatory documents are presented. Available possible emulsifiers in Ukraine for over-stabilised bitumen emulsions are given with a description of road technology where they can be applied.