Factorial design used to model the compressive strength of mortars containing recycled rubber

• Published in: Composite structures Vol. 92; no. 9; pp. 2047 - 2051
• Main Authors: Correia, Sivaldo L., Partala, Tânia, Loch, Felipe C., Segadães, A.M.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2010; Elsevier
• Subjects: Aggregates; Applied sciences; Buildings. Public works; Compressive strength; Concretes. Mortars. Grouts; Consistency; Design of experiments; Elastomers; Exact sciences and technology; Factorial design; Fracture mechanics (crack, fatigue, damage...); Fundamental areas of phenomenology (including applications); Industrial polymers. Preparations; Materials; Mortars; Physics; Polymer industry, paints, wood; Recycled; Recycling; Rubber; Rubber mortars; Scrap; Solid mechanics; Structural and continuum mechanics; Technology of polymers; Compressive strength; Recycling; Design of experiments; Rubber mortars; Mortar; Mechanical properties; Modeling; Physical properties; Experimental design; Cement; Response surface; Aggregate; Rubber; Factorial design
• ISSN: 0263-8223; 1879-1085
• DOI: 10.1016/j.compstruct.2009.11.007

This paper presents results from an investigation on the potential use of waste vulcanized rubber scrap (WRS) particles as aggregate in construction mortars. The investigation was carried out using a 3 2 factorial design of experiments and the response surface methodology. Mortar mixtures were prepared using WRS as fine aggregate (10, 20 and 30 vol.%) with water/cement ratios of 0.52, 0.55 and 0.60. Fresh mortar consistency index and hardened mortar 28-day compressive strength were evaluated. The influence of the WRS content on the physical and mechanical properties was established, and the suitability of WRS use in a mortar application was demonstrated.