Study of the effects of excessive cement or lime in mechanical properties and durability of the mortar coating
International Journal of Development Research
Study of the effects of excessive cement or lime in mechanical properties and durability of the mortar coating
Received 16th June, 2019; Received in revised form 04th July, 2019; Accepted 20th August, 2019; Published online 30th September, 2019
Copyright © 2019, Santos, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The mortars produced currently have adhesion and mechanical resistance and physical properties often unsatisfactory to cater for projects with large loads and environmental conditions more severe. This work aims to study the mechanical properties and durability of coating mortars produced with excessive lime or cement. Tests were carried out air incorporated content; resistance to compression, flexion traction and pull off; elasticity modulus; water absorption; porosity, fissurability e digital microscope images. It was CP-II-E-32 cement, CH-I lime and quartz natural sand. The results showed that the addition of excessive binder maximizes some mechanical properties such as compression, tensile and elasticity modulus, yet reduces the adhesion and durability properties analyzed. It is concluded that it is necessary to get the proper content of cement and lime for mortar mixed with a focus primarily on adherence and durability indicators, being these more sensitive to variation properties of materials.
