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Influencia del proceso de fabricación sobre las propiedades mecánicas de los concretos de ultra alto desempeño (UHPC)

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ID Minciencias: TM-0001481495-48
Ranking: TM-TM_B

Abstract:

This study presents the influence of some types of cured and manufacturing on the development of compressive and flexural strength, and elastic modulus of two mixtures of Ultra High Performance Concrete (UHPC), made with materials easily obtained in Colombia. The first is a mixture requires the application of techniques of accommodation such as vibration, and the second is a mixture capable of self-compactability. Four regimes of curing were analyzed, under laboratory conditions, ambient under cover, and with each of these incorporating a heat treatment at 90 ° C and 100% relative humidity. To determine the evolution of the properties mentioned, specimens were tested at 1 or 2, 7, 28 and 90 days. The modes of manufacturing were without vibrating and vibrating. Was obtained that including heat treating contributes to the exothermic reactions cement hydration, generating a gain accelerated strength. Moreover, the manufacturing process further affects the mixture is not self-compacting, because the vibration eliminates gaps that allow the development of a dense matrix.

Tópico:

Concrete and Cement Materials Research

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Minciencias IDTM-0001481495-48Scienti ID0001481495-48Openalex URLhttps://openalex.org/W2289584555
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