Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]

The present research deals with the application of the water/cement relations in extreme vertices design for mortars to delimit an operability zone in the simplex. Three components were used: water, Portland pozzolanic cement, and fine sand, and the responses were compressive strengths at 24 h, 3, 7...

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Main Authors: William B. Lema, Edison Castillo
Format: Article
Language:English
Published: Universidad de Cuenca 2018-06-01
Series:Maskana
Subjects:
Online Access:https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/1860
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author William B. Lema
Edison Castillo
author_facet William B. Lema
Edison Castillo
author_sort William B. Lema
collection DOAJ
description The present research deals with the application of the water/cement relations in extreme vertices design for mortars to delimit an operability zone in the simplex. Three components were used: water, Portland pozzolanic cement, and fine sand, and the responses were compressive strengths at 24 h, 3, 7 and 28 days, and mortar fluidity. The performed analysis revealed that the water/cement relations can be modeled according to the principles of the experimental mix design and they can be used as constraints for the application of the extreme vertices design. Results showed that water/cement ratios have delimited ranges. The mathematical models explain the response with Raj2greater than 85% and with values of p<0.009. In addition, results proved the existence of a feasible operability zone in the simplex for mortars of which the ratio water/cement varies in the range 0.3≤x1/x2≤0.9, with the resistances varying between 75.67 to 473.35 kg/cm2 at 28 days and the fluidity from 45.15 to 150%. The mortar cost in the operability zone varies from 65.94 to 229.73$ per m3, enabling the constructor to select the mortar corresponding to the technical needs.
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spelling doaj.art-88cc03014a494b96890cd24aae43684a2022-12-22T02:13:12ZengUniversidad de CuencaMaskana1390-61432477-88932018-06-0191125140https://doi.org/10.18537/mskn.09.01.12Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]William B. Lema0Edison Castillo1Universidad de CuencaUniversidad de CuencaThe present research deals with the application of the water/cement relations in extreme vertices design for mortars to delimit an operability zone in the simplex. Three components were used: water, Portland pozzolanic cement, and fine sand, and the responses were compressive strengths at 24 h, 3, 7 and 28 days, and mortar fluidity. The performed analysis revealed that the water/cement relations can be modeled according to the principles of the experimental mix design and they can be used as constraints for the application of the extreme vertices design. Results showed that water/cement ratios have delimited ranges. The mathematical models explain the response with Raj2greater than 85% and with values of p<0.009. In addition, results proved the existence of a feasible operability zone in the simplex for mortars of which the ratio water/cement varies in the range 0.3≤x1/x2≤0.9, with the resistances varying between 75.67 to 473.35 kg/cm2 at 28 days and the fluidity from 45.15 to 150%. The mortar cost in the operability zone varies from 65.94 to 229.73$ per m3, enabling the constructor to select the mortar corresponding to the technical needs.https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/1860extreme vertices designwater-cement relationshipmortarmathematical model
spellingShingle William B. Lema
Edison Castillo
Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]
Maskana
extreme vertices design
water-cement relationship
mortar
mathematical model
title Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]
title_full Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]
title_fullStr Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]
title_full_unstemmed Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]
title_short Water-cement relationships in extreme vertex design applied to mortar | [Relaciones agua-cemento en diseño de vértices extremos aplicado a mortero]
title_sort water cement relationships in extreme vertex design applied to mortar relaciones agua cemento en diseno de vertices extremos aplicado a mortero
topic extreme vertices design
water-cement relationship
mortar
mathematical model
url https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/1860
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AT edisoncastillo watercementrelationshipsinextremevertexdesignappliedtomortarrelacionesaguacementoendisenodeverticesextremosaplicadoamortero