Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability

This paper seeks to optimize the mechanical and durability properties of ultra-high performance concrete (UHPC). To meet this objective, concrete specimens were manufactured by using 1100 kg/m<sup>3</sup> of binder, water/binder ratio 0.20, silica sand and last generation of superplastic...

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Autores principales:	Julio A. Paredes, Jaime C. Gálvez, Alejandro Enfedaque, Marcos G. Alberti
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ultra-high performance concrete (UHPC) concrete compressive strength durability nano additions additions Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/c3def75ae34f470d88e02ac2e1c0a6ec
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spelling	oai:doaj.org-article:c3def75ae34f470d88e02ac2e1c0a6ec2021-11-25T18:14:56ZMatrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability10.3390/ma142269441996-1944https://doaj.org/article/c3def75ae34f470d88e02ac2e1c0a6ec2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6944https://doaj.org/toc/1996-1944This paper seeks to optimize the mechanical and durability properties of ultra-high performance concrete (UHPC). To meet this objective, concrete specimens were manufactured by using 1100 kg/m<sup>3</sup> of binder, water/binder ratio 0.20, silica sand and last generation of superplasticizer. Silica fume, metakaolin and two types of nano silica were used for improving the performances of the concrete. Additional mixtures included 13 mm long OL steel fibers. Compressive strength, electrical resistivity, mercury intrusion porosimetry tests, and differential and thermogravimetric thermal analysis were carried out. The binary combination of nano silica and metakaolin, and the ternary combination of nano silica with metakaolin and silica fume, led to the best performances of the UHPC, both mechanical and durable performances.Julio A. ParedesJaime C. GálvezAlejandro EnfedaqueMarcos G. AlbertiMDPI AGarticleultra-high performance concrete (UHPC)concretecompressive strengthdurabilitynano additionsadditionsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6944, p 6944 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ultra-high performance concrete (UHPC) concrete compressive strength durability nano additions additions Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	ultra-high performance concrete (UHPC) concrete compressive strength durability nano additions additions Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Julio A. Paredes Jaime C. Gálvez Alejandro Enfedaque Marcos G. Alberti Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability
description	This paper seeks to optimize the mechanical and durability properties of ultra-high performance concrete (UHPC). To meet this objective, concrete specimens were manufactured by using 1100 kg/m<sup>3</sup> of binder, water/binder ratio 0.20, silica sand and last generation of superplasticizer. Silica fume, metakaolin and two types of nano silica were used for improving the performances of the concrete. Additional mixtures included 13 mm long OL steel fibers. Compressive strength, electrical resistivity, mercury intrusion porosimetry tests, and differential and thermogravimetric thermal analysis were carried out. The binary combination of nano silica and metakaolin, and the ternary combination of nano silica with metakaolin and silica fume, led to the best performances of the UHPC, both mechanical and durable performances.
format	article
author	Julio A. Paredes Jaime C. Gálvez Alejandro Enfedaque Marcos G. Alberti
author_facet	Julio A. Paredes Jaime C. Gálvez Alejandro Enfedaque Marcos G. Alberti
author_sort	Julio A. Paredes
title	Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability
title_short	Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability
title_full	Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability
title_fullStr	Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability
title_full_unstemmed	Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability
title_sort	matrix optimization of ultra high performance concrete for improving strength and durability
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c3def75ae34f470d88e02ac2e1c0a6ec
work_keys_str_mv	AT julioaparedes matrixoptimizationofultrahighperformanceconcreteforimprovingstrengthanddurability AT jaimecgalvez matrixoptimizationofultrahighperformanceconcreteforimprovingstrengthanddurability AT alejandroenfedaque matrixoptimizationofultrahighperformanceconcreteforimprovingstrengthanddurability AT marcosgalberti matrixoptimizationofultrahighperformanceconcreteforimprovingstrengthanddurability
_version_	1718411463732756480

Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability

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