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1 septembre 2021
- handle: 10670/1.smm9ib
Ce document est lié à :
10.7764/rdlc.20.2.277
info:eu-repo/semantics/openAccess
Mots-clés
roller compacted concrete recycled aggregate cement dosages optimum water content mechanical propertiesSujets proches
Rolled concrete RCC (Roller compacted concrete) Rollcrete Concrete, Roller compacted Beton Hydraulic cementCiter ce document
Hojjat Hosseinnezhad et al., « Mechanical properties of roller compacted concrete containing recycled concrete aggregate », Revista de la Construcción, ID : 10670/1.smm9ib
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Résumé
The compressive strength, splitting tensile strength, pulse velocity and drop weight impact resistance of roller compacted concrete (RCC) mixtures containing recycled concrete aggregate (RCA) were investigated. The cement contents of the RCC mixtures were chosen as 150, 200 and 250 kg/m3. In addition to the control mixtures containing no RCA, 25, 50, 75 and 100 wt% of the crushed limestone aggregate was replaced with RCA. In this way, 15 RCC mixtures were prepared. The water content of RCC mixtures was determined by the maximum density method. The results showed that increasing the amount of recycled aggregate decreased the mechanical properties of the concrete. However, up to 25% replacement level, recycled aggregate had not a significant detrimental effect on the properties of RCC. Besides, the detrimental effect of RCA substitution was more pronounced in leaner mixtures and reduced by increasing the cement content of the RCC.