This laboratory study deals with a comprehensive and extensive investigation on modified concrete specimens using rubber particles obtained from waste tires. Different types of mix have been studied with different percentage of rubber particles used as a partial or total substitute to natural aggregates by using and comparing mixtures with various additions and surface treatments. Test results show that the rubcrete mix has some appealing characteristics such as a low specific weight but worsen compressive strength in line with previous studies. However, the most important findings of this research also reveal that a decline of mechanical performance have been observed in the rubcrete samples at 60 days. Also cracking and delaminations phenomena occured on the test specimens. This paper presents some of these new results and start investigating the causes of the observed time-dependent degradation.
Experimental investigation on degradation processes in concrete with recycled-tire rubber aggregates / Sgobba, Sara; Marano, Giuseppe Carlo; Borsa, Massimo; Molfetta, Marcello; Tuseo, Raffaele. - STAMPA. - (2011), pp. 1245-1248. (Intervento presentato al convegno fib Symposium Prague 2011 on Concrete Engineering for Excellence and Efficiency tenutosi a Prague nel June 8-10, 2011).
Experimental investigation on degradation processes in concrete with recycled-tire rubber aggregates
Sgobba, Sara;Marano, Giuseppe Carlo
;
2011-01-01
Abstract
This laboratory study deals with a comprehensive and extensive investigation on modified concrete specimens using rubber particles obtained from waste tires. Different types of mix have been studied with different percentage of rubber particles used as a partial or total substitute to natural aggregates by using and comparing mixtures with various additions and surface treatments. Test results show that the rubcrete mix has some appealing characteristics such as a low specific weight but worsen compressive strength in line with previous studies. However, the most important findings of this research also reveal that a decline of mechanical performance have been observed in the rubcrete samples at 60 days. Also cracking and delaminations phenomena occured on the test specimens. This paper presents some of these new results and start investigating the causes of the observed time-dependent degradation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
