Diseño de hormigones en obras civiles bajo niveles freaticos en la Ciudad de Machala

Abstract

The present work is directed to carry out the design of concrete that is resistant to salinity that presents the water table levels of the city of Machala since, being the case of a generalization throughout the city, it is essential to take into account that the saline presence, we take as a starting point, a work greater than or equal to five floors is required, for which we carry out the design of the concrete with a compressive strength of 310 Kg. cm2. The city of Machala in recent years has had a very accelerated territorial growth for that reason the city needs to carry out large works, based on the problem of finding in certain areas of the city with exposure of phreatic levels with saline presence, the common methods they can be unconventional and are at risk because salt corrosion or simply continuous exposure to water can cause accelerated deterioration of concrete. Through laboratory tests based on the NTE INEN regulations to determine the characteristics of the aggregates, then using a cement dedicated to addressing the risk of salinity with characteristics of Type II and Type V cement. In this way we put to the test carrying out a curing of concrete in fresh water and in salt water, being evaluated after 28 days, determining that the concrete design in both cases does meet the desired compressive strength of 310 Kg.cm2.