Influência do chapisco na resistência de aderência à tração em revestimentos de argamassa em blocos de concreto na área externa de uma edificação

Abstract

Civil construction is one of the main activities responsible for leveraging the national economy, however, it stimulates several companies in the market, in which they produce inputs for use on construction sites. Above all, the construction activity, it is possible to observe the great waste of materials and rework due to executive failures or failure to perform in the most appropriate way. In this context, the present study aimed, as the main objective, to analyze the influence of roughcast in a coating system with the use of roughcast and another covering without the use of roughcast, and determining through laboratory tests the tensile adhesion strength. Thus, after specifying the roughcast and mortar traces, the walls were built in concrete block and coated, and subsequently subjected to tensile bond strength tests on the 28th day after the coating was applied. With the tests carried out, it can be concluded that the roughcast increases the tensile bond strength and creates a better bond between the substrate/masonry interface.