Properties of Mortars Containing Tire Rubber Waste and Expanded Polystyrene (Eps)

Abstract

This study aims to evaluate the application of discarded tire rubber waste and Expanded Polystyrene (EPS) in mortar. For mortars fine aggregate was replaced by 10%, 20% and 30% of rubber and, 7.5% and 15% of EPS. We have verified the consistency, density, amount of air and water retentitivity in fresh state. The compressive strength, water absorption, voids ratio and specific gravity have been also tested in hardened state. The application of rubber powder contributed to the increase in entrained air content and in reducing specific gravity, as well as reducing compressive strength at 28 days. The addition of EPS also contributed to the increase of workability, water absorption and voids ratio, and decreased density and compressive strength when compared to the reference mortar. The use of rubber waste and EPS in mortar made the material more lightweight and workable. The mortars mixtures containing 10% rubber and 7.5% EPS showed better results.

Sound transmission loss of LC3-based mortars with barite and waste rubber

“…31 However, unlike other materials, rubber is an inert and hydrophobic material. 51 The compressive strength of the rubberized mortar was found 0.06 times less than the river sand mortar, as expected (Figure 14). Rubber aggregates added to cementitious mortars reduced compressive and flexural strengths in parallel with the literature research.…”

Structural Behavior of Ferrocement Concrete Plates Subjected to Flexural and Dynamic Loadings

“…Compressive strength at 28 days shown in Fig. 15. -In 2018, Itamar Ribeiro Gomes studied properties of mortars containing tire rubber waste and expanded polystyrene (eps) indicated that the mortars containing 10% rubber and 7.5% EPS showed better results, but further research should be carried out in order to study the behavior of other untested properties, such as substrate adhesion strength, deformation modulus, thermal conductivity and fire spread analysis [10].…”

Effect of Polymer Additives on the Microstructure and Mechanical Properties of Self-Leveling Rubberised Concrete

“…The main parameters include rubber content, granulometry of components, the presence of additives such as silica or pozzolana, water-to-cement ratio and functionalisation or pre-treatments by means of NaOH. Other popular chemical treatments of rubber presented in literature include silane coupling agent [ 31 ], H 2 O 2 , CaCl 2 , H 2 SO 4 and a combination treatment of KMnO 4 and NaHSO 4 [ 32 ], calcium hydroxide, and acetic acid solutions [ 33 ], ethanol, methanol and acetone [ 34 ] or a chemical blend of 17.2% acrylic acid, 13.8% polyethylene glycol and 69% anhydrous ethanol by weight [ 35 ].…”