Influencia de la fibra de abacá en el comportamiento a tracción del mortero actual y envejecido.

Abstract

Abaca is endemic from the Philippines, due to its commercial value it is cultivated in Ecuador. Its vegetable fibers have high tensile strength, making it ideal for use as reinforcement in composite materials. The objective of this investigation is to compare the influence of abaca fiber as a reinforcement in mortars in the short and long term. The preparation of mortar for masonry was done with a 1:3 ratio (cement: sand) in relation to its mass, analyzing the effect of adding 0.2% (total weight of solids) of abaca fiber treated in a NaOH solution. at 3%. Properties such as traction in dog bone specimens and beams for flexotraction and compression and how these properties varied as a function of time applying wet and dry processes were analyzed. The results showed that the addition of fiber improves the tensile properties for ages of 7, 14 and 28 days, in addition, after the wet and dry processes, it maintains the resistance similar as conventional mortars. Which indicates that it is an excellent reinforcement for masonry mortars.