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Zaštita materijala
2015, vol. 56, br. 3, str. 345-353
jezik rada: engleski
vrsta rada: naučni članak
objavljeno: 29/10/2015
doi: 10.5937/ZasMat1503345T
Svojstva, materijali i trajnost valjanog betona za kolovoz
Univerzitet u Nišu, Građevinsko-arhitektonski fakultet

e-adresa: gogatc@gmail.com

Projekat

Istraživanje mogućnosti primene otpadnih i recikliranih materijala u betonskim kompozitima, sa ocenom uticaja na životnu sredinu, u cilju promocije održivog građevinarstva u srbiji (MPNTR - 36017)

Sažetak

Valjani beton (RCC) je projektovana betonska mešavina koja se sastoji od zbijenog separisanog agregata, cementa i vode. Ova betonska mešavina čija je vrednost sleganja nula, prilikom ugrađivanja sa asfaltnim finišerom i kada je sabijena do velike gustine, daje veoma čvrstu i trajnu kolovoznu konstrukciju. Za RCC se ne koriste oplate, nije potrebna konvencionalna završna obrada i ne koriste se dilatacione razdelnice ili armaturni čelik, što ga čini ekonomičnim. Mala vrednost vodocementnog faktora (obično se kreće od 0,30 do ,0,40) obezbeđuje veliku čvrstoću. Uobičajene projektovane vrednosti čvrstoće pri pritisku nalaze se u opsegu od 35 do 55 N/mm2. Zbog male vrednosti vodocementnog faktora i manje količine paste u betonskoj matrici, ne dolazi do 'krvarenja' betona, osim toga, skupljanje je manje nego kod konvencionalnih betona od portland cementa. U proteklih 30 godina, prihvaćen je kao jak i trajan kolovozni materijal koji može da izdrži velika opterećenja i oštru klimu uz malo potrebnog održavanja.

Ključne reči

Reference

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