Effects of paste-to-voids volume ratio on performance of selfconsolidating concrete mixtures

Xuhao Wang, Peter Taylor, Kejin Wang, George Morcous

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A well-proportioned self-consolidating concrete (SCC) mixture can be achieved by controlling the aggregate system, paste quality and paste quantity. This study aims to apply a concept that is based on paste-to-voids volume ratio (Vpaste /Vvoids) to assess the performance of SCC mixtures. The relationship between excess paste theory and Vpaste / Vvoids was investigated. Tests were conducted on a large matrix of SCC mixtures that were designed for cast-in-place concrete construction. The mixtures were made with different aggregate types and sizes, and different cementitious materials. The workability, flow properties, compressive strength, shrinkage and surface resistivity of SCC mixtures were determined as indicators of SCC performance. Statistical analyses, response surface models and Tukey honest significant difference (HSD) tests, were conducted to relate the mix design parameters to the concrete performance. Test results revealed that slump flow of the SCC mixtures increased with Vpaste /Vvoids at a given viscosity. Strength increases with Vpaste /Vvoids up to a point (∼150%), after which the strength becomes independent of Vpaste /Vvoids. Vpaste /Vvoids has little effect on the shrinkage of SCC mixtures, or their surface resistivity. Statistical analysis is an efficient tool to identify the significance of influencing factors on concrete performance.

Original languageEnglish (US)
Pages (from-to)771-785
Number of pages15
JournalMagazine of Concrete Research
Volume67
Issue number14
DOIs
StatePublished - Jul 1 2015

Fingerprint

Concrete mixtures
Ointments
Concretes
Cast in place concrete
Concrete construction
Compressive strength
Statistical methods
Viscosity

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

Effects of paste-to-voids volume ratio on performance of selfconsolidating concrete mixtures. / Wang, Xuhao; Taylor, Peter; Wang, Kejin; Morcous, George.

In: Magazine of Concrete Research, Vol. 67, No. 14, 01.07.2015, p. 771-785.

Research output: Contribution to journalArticle

@article{2abf7c90cbb742ad8a9221ee4d021c11,
title = "Effects of paste-to-voids volume ratio on performance of selfconsolidating concrete mixtures",
abstract = "A well-proportioned self-consolidating concrete (SCC) mixture can be achieved by controlling the aggregate system, paste quality and paste quantity. This study aims to apply a concept that is based on paste-to-voids volume ratio (Vpaste /Vvoids) to assess the performance of SCC mixtures. The relationship between excess paste theory and Vpaste / Vvoids was investigated. Tests were conducted on a large matrix of SCC mixtures that were designed for cast-in-place concrete construction. The mixtures were made with different aggregate types and sizes, and different cementitious materials. The workability, flow properties, compressive strength, shrinkage and surface resistivity of SCC mixtures were determined as indicators of SCC performance. Statistical analyses, response surface models and Tukey honest significant difference (HSD) tests, were conducted to relate the mix design parameters to the concrete performance. Test results revealed that slump flow of the SCC mixtures increased with Vpaste /Vvoids at a given viscosity. Strength increases with Vpaste /Vvoids up to a point (∼150{\%}), after which the strength becomes independent of Vpaste /Vvoids. Vpaste /Vvoids has little effect on the shrinkage of SCC mixtures, or their surface resistivity. Statistical analysis is an efficient tool to identify the significance of influencing factors on concrete performance.",
author = "Xuhao Wang and Peter Taylor and Kejin Wang and George Morcous",
year = "2015",
month = "7",
day = "1",
doi = "10.1680/macr.14.00313",
language = "English (US)",
volume = "67",
pages = "771--785",
journal = "Magazine of Concrete Research",
issn = "0024-9831",
publisher = "ICE Publishing Ltd.",
number = "14",

}

TY - JOUR

T1 - Effects of paste-to-voids volume ratio on performance of selfconsolidating concrete mixtures

AU - Wang, Xuhao

AU - Taylor, Peter

AU - Wang, Kejin

AU - Morcous, George

PY - 2015/7/1

Y1 - 2015/7/1

N2 - A well-proportioned self-consolidating concrete (SCC) mixture can be achieved by controlling the aggregate system, paste quality and paste quantity. This study aims to apply a concept that is based on paste-to-voids volume ratio (Vpaste /Vvoids) to assess the performance of SCC mixtures. The relationship between excess paste theory and Vpaste / Vvoids was investigated. Tests were conducted on a large matrix of SCC mixtures that were designed for cast-in-place concrete construction. The mixtures were made with different aggregate types and sizes, and different cementitious materials. The workability, flow properties, compressive strength, shrinkage and surface resistivity of SCC mixtures were determined as indicators of SCC performance. Statistical analyses, response surface models and Tukey honest significant difference (HSD) tests, were conducted to relate the mix design parameters to the concrete performance. Test results revealed that slump flow of the SCC mixtures increased with Vpaste /Vvoids at a given viscosity. Strength increases with Vpaste /Vvoids up to a point (∼150%), after which the strength becomes independent of Vpaste /Vvoids. Vpaste /Vvoids has little effect on the shrinkage of SCC mixtures, or their surface resistivity. Statistical analysis is an efficient tool to identify the significance of influencing factors on concrete performance.

AB - A well-proportioned self-consolidating concrete (SCC) mixture can be achieved by controlling the aggregate system, paste quality and paste quantity. This study aims to apply a concept that is based on paste-to-voids volume ratio (Vpaste /Vvoids) to assess the performance of SCC mixtures. The relationship between excess paste theory and Vpaste / Vvoids was investigated. Tests were conducted on a large matrix of SCC mixtures that were designed for cast-in-place concrete construction. The mixtures were made with different aggregate types and sizes, and different cementitious materials. The workability, flow properties, compressive strength, shrinkage and surface resistivity of SCC mixtures were determined as indicators of SCC performance. Statistical analyses, response surface models and Tukey honest significant difference (HSD) tests, were conducted to relate the mix design parameters to the concrete performance. Test results revealed that slump flow of the SCC mixtures increased with Vpaste /Vvoids at a given viscosity. Strength increases with Vpaste /Vvoids up to a point (∼150%), after which the strength becomes independent of Vpaste /Vvoids. Vpaste /Vvoids has little effect on the shrinkage of SCC mixtures, or their surface resistivity. Statistical analysis is an efficient tool to identify the significance of influencing factors on concrete performance.

UR - http://www.scopus.com/inward/record.url?scp=84937029000&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84937029000&partnerID=8YFLogxK

U2 - 10.1680/macr.14.00313

DO - 10.1680/macr.14.00313

M3 - Article

AN - SCOPUS:84937029000

VL - 67

SP - 771

EP - 785

JO - Magazine of Concrete Research

JF - Magazine of Concrete Research

SN - 0024-9831

IS - 14

ER -