Early Contributing Nanostructured Cementitious Matrix Designs: Benefits in Durable Features at Early Ages

García, Ramiro and Henao, Nelson and Rubia López, Miguel Ángel de la and Moragues Terrades, Amparo and Fernández Gómez, Jaime Antonio (2019). Early Contributing Nanostructured Cementitious Matrix Designs: Benefits in Durable Features at Early Ages. "Construction And Building Materials", v. 241 ; p. 117941. ISSN 0950-0618. https://doi.org/10.1016/j.conbuildmat.2019.117941.

Description

Title: Early Contributing Nanostructured Cementitious Matrix Designs: Benefits in Durable Features at Early Ages
Author/s:
  • García, Ramiro
  • Henao, Nelson
  • Rubia López, Miguel Ángel de la
  • Moragues Terrades, Amparo
  • Fernández Gómez, Jaime Antonio
Item Type: Article
Título de Revista/Publicación: Construction And Building Materials
Date: 21 December 2019
ISSN: 0950-0618
Volume: 241
Subjects:
Freetext Keywords: Metakaolin, Nanosilica, Diffusion Chloride, Resistivity, High Durability, Early Durable Features, Marine Exposure, Micro and Nano Combinations
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Construcción
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Blends of cement mortars type IIIA 42,5 with metakaolin and different nanosilicas have been studied. The application of these materials is like offshore concrete elements such as concrete drawers, oil and gas offshore platforms…etc, where service-life design requires a high degree of durable contribution and by manufacturing requirements at an early ages. Structural, microstructural characterization and durable behaviour have been carried out by electrical resistivity, mechanical properties, DTA-TG analysis, MIP and chloride diffusion. The study shows a clear benefit at early ages due to synergic effects combining one or two types of nanosilica and metakaolin in the same matrix design, contributing physically by refining the final porous structure and chemically by increasing the chloride binding ability of the cementitious matrix design. It is estimated that the designed service live is of the order of 3 and 4 times greater for the blends exposes to chlorides at early ages (4 and 7 days) than for the reference cement exposed at 28 days.

More information

Item ID: 64301
DC Identifier: http://oa.upm.es/64301/
OAI Identifier: oai:oa.upm.es:64301
DOI: 10.1016/j.conbuildmat.2019.117941
Official URL: https://www.sciencedirect.com/science/article/pii/S095006181933394X
Deposited by: Memoria Investigacion
Deposited on: 02 Oct 2020 13:07
Last Modified: 02 Oct 2020 13:07
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