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Title: Mechanical and Physical Properties of Concrete Incorporating Rubber

Author(s): Faisal.A.H Saleh, Nouria Kaid, Kada Ayed, Rabah Soltani, And Djamel-Eddine Kerdal

Publication: Symposium Paper

Volume: 349


Appears on pages(s): 432-445

Keywords: Self-compacting sand concrete; Vibrated concrete; Recycled rubber; Compressive strength; Flexural strength; Water porosity

DOI: 10.14359/51732763

Date: 4/22/2021

Scrap tyres are one of the most serious wastes that are landfilled with small percentages. Recycled scrap tyres are being used in different domains of industry because they are notdegradable. The experimental work focused on mechanical properties and durability indicators of self-compacting sand concretes blended with recycled rubber. Such modified concretes comprised 5, 10, 15 and 20% of rubber fine powder (RFP) and coarse particles (RCP) as partial substitutions of natural sand and aggregates. To shed light on physical and mechanical properties rubber particles effects, ordinary vibrated and self-compacting as well as self-compacting sand concretes (SCSCs) were characterised. Special attention was given to compression and bending performances of SCSCs. Identification of two durability indicators — water porosity and density — was assessed, according to AFGC specifications. Experimental findings enhanced previous literature reported statements and demonstrated that use of rubber particles as substitutes improved performances of elaborated SCSCs and produced eco-friendly materials that are appropriate for large surface applications such as pavements and terraces as well as civil engineering constructions.