Abstract
Specifically, the use of vinyl ester resins has been studied profusely in both the maritime and industrial sectors and with less time, in the use of reinforcement in civil engineering structures and architecture as passive reinforcements. The resin used in the present work is novel, and still little used. It is vinyl ester resin of bisphenol-A segment modified with urethane. This presents a greater resistance to chemical agents such as those of the petroleum industry, alkaline agents and vapors; together with a lower exotherm that facilitates the manufacture of thick laminates. A thermal and mechanical characterization has been carried out through the techniques of Differential Scanning Calorimetry (DSC), Infrared Spectroscopy (FTIR) and Thermogravimetry (TGA) of said resin reinforced with high grammage (780 g / cm2) fiber of E glass to evaluate the degradation of the composite and its mechanical properties to the interlaminar shear and bending. The influence of the contact with self-compacting concrete (HAC) on said material, imbedded inside its matrix as a reinforcement, as if it were a passive reinforcement, as well as an accelerated aging study in solution simulating the exudation liquid of the concrete pores (LPH) through said characterization. With the obtained results, it is evaluated and compared, from the point of view of degradation-stiffening vs. mechanical properties, with the traditional Bisphenol-A (VEBA) resins, as well as its suitability for the aforementioned applications, resulting in a resin with better properties than the VEBA.
Published Version
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