Effect of cellulose fiber on the adhesive properties of tile adhesive mortar in fresh state

Abstract

Fibers are often used in cementitious materials, including mortar, in order to improve their mechanical properties in hardened state, and this has been subjects of numerous researches. However, their influence on the properties of materials in fresh state and early-age state has not been fully investigated. Moreover, there are few publishes on the influence of cellulose fiber on the adhesive properties of cement-based materials in fresh state. In this research, the influence of a cellulose fiber on the adhesive properties of fresh cement mortar, including adhesive force, cohesion force and the adherence, has been investigated using Probe tack test. The results indicate that cellulose fiber improves the adhesive force, the cohesion force and diminishes the adherence of fresh mortar.