Influência de diferentes resistências de argamassa na resistência a compressão de prismas de blocos cerâmicos

Abstract

The construction system consists of the masonry unit (block) and mortar both of which carry an important role in the final assembly strength . This work aims to evaluate the mechanical behavior of prisms combined with different blocks and mortar and thus determine the influence of the elements in the joint strength. The study was conducted with two blocks of different strengths and geometries and with three different resistances industrial mortars. The experimental program included the evaluation of the compressive strength of the mortar, blocks and prisms. For the mortar was more accomplished the tensile test in flexion and consistency index. Were made in total 36 prisms of 2 blocks, combining the different mortars and blocks. In the test to compression of the blocks both showed higher resistance specified by the manufacturer. The mortars had consistency index within the norm and resistance to higher compression determined by the manufacturer. Based on the analysis of the results of the tested compounds, it can be concluded that the block of solid walls is more efficient for use on masonry block in relation to the cast. The mortar strength influenced the prism of resistance, because it is no longer a limiting resistance. The main influence of mortar strength was the change in the form of rupture.