Statistical evaluation of the mechanical properties of high-volume class F fly ash concretes

Seyoon Yoon; Paulo J. M. Monteiro; Donald E. Macphee; Fredrik P. Glasser; Mohammed Salah-Eldin Imbabi

doi:10.1016/j.conbuildmat.2013.12.077

Statistical evaluation of the mechanical properties of high-volume class F fly ash concretes

Seyoon Yoon^*, Paulo J. M. Monteiro, Donald E. Macphee, Fredrik P. Glasser, Mohammed Salah-Eldin Imbabi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

High-Volume Fly Ash (HVFA) concretes are seen by many as a feasible solution for sustainable, low embodied carbon construction. At the moment, fly ash is classified as a waste by-product, primarily of thermal power stations. In this paper the authors experimentally and statistically investigated the effects of mix-design factors on the mechanical properties of high-volume class F fly ash concretes. A total of 240 and 32 samples were produced and tested in the laboratory to measure compressive strength and Young's modulus respectively. Applicability of the CEB-FIP (Comite Euro-international du Beton - Federation Internationale de la Precontrainte) and ACI (American Concrete Institute) Building Model Code (Thomas, 2010; ACI Committee 209, 1982) [1,2] to the experimentally-derived mechanical property data for HVFA concretes was established. Furthermore, using multiple linear regression analysis, Mean Squared Residuals (MSRs) were obtained to determine whether a weight- or volume-based mix proportion is better to predict the mechanical properties of HVFA concrete. The significance levels of the design factors, which indicate how significantly the factors affect the HVFA concrete's mechanical properties, were determined using analysis of variance (ANOVA) tests. The results show that a weight-based mix proportion is a slightly better predictor of mechanical properties than volume-based one. The significance level of fly ash substitution rate was higher than that of w/b ratio initially but reduced over time. (C) 2014 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	432-442
Number of pages	11
Journal	Construction and building materials
Volume	54
Early online date	23 Jan 2014
DOIs	https://doi.org/10.1016/j.conbuildmat.2013.12.077
Publication status	Published - 15 Mar 2014

Keywords

Fly ash
Concrete
Mix design
Compressive strength
Young's modulus
Statistical analysis
ANOVA test
self-compacting concrete
compressive strength
prediction
cement
model
size

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10.1016/j.conbuildmat.2013.12.077

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@article{02ddc27fcd894f4fa4627f10d71642bf,

title = "Statistical evaluation of the mechanical properties of high-volume class F fly ash concretes",

abstract = "High-Volume Fly Ash (HVFA) concretes are seen by many as a feasible solution for sustainable, low embodied carbon construction. At the moment, fly ash is classified as a waste by-product, primarily of thermal power stations. In this paper the authors experimentally and statistically investigated the effects of mix-design factors on the mechanical properties of high-volume class F fly ash concretes. A total of 240 and 32 samples were produced and tested in the laboratory to measure compressive strength and Young's modulus respectively. Applicability of the CEB-FIP (Comite Euro-international du Beton - Federation Internationale de la Precontrainte) and ACI (American Concrete Institute) Building Model Code (Thomas, 2010; ACI Committee 209, 1982) [1,2] to the experimentally-derived mechanical property data for HVFA concretes was established. Furthermore, using multiple linear regression analysis, Mean Squared Residuals (MSRs) were obtained to determine whether a weight- or volume-based mix proportion is better to predict the mechanical properties of HVFA concrete. The significance levels of the design factors, which indicate how significantly the factors affect the HVFA concrete's mechanical properties, were determined using analysis of variance (ANOVA) tests. The results show that a weight-based mix proportion is a slightly better predictor of mechanical properties than volume-based one. The significance level of fly ash substitution rate was higher than that of w/b ratio initially but reduced over time. (C) 2014 Elsevier Ltd. All rights reserved.",

keywords = "Fly ash, Concrete, Mix design, Compressive strength, Young's modulus, Statistical analysis, ANOVA test, self-compacting concrete, compressive strength, prediction, cement, model, size",

author = "Seyoon Yoon and Monteiro, {Paulo J. M.} and Macphee, {Donald E.} and Glasser, {Fredrik P.} and Imbabi, {Mohammed Salah-Eldin}",

note = "Acknowledgements The experimental data reported in this publication was obtained with the kind support of U C Berkeley research grant No. KUS-l1-004021, awarded by King Abdullah University of Science and Technology (KAUST). The processing and evaluation of this data was carried out with the kind support of University of Aberdeen research grant No. ENG016 RGG0593, awarded by the Gulf Organization of Research and Development (GORD), Qatar. Furthermore, we greatly appreciate to John Masson and Dougie Craighead for their experimental assistance.",

year = "2014",

month = mar,

day = "15",

doi = "10.1016/j.conbuildmat.2013.12.077",

language = "English",

volume = "54",

pages = "432--442",

journal = "Construction and building materials",

issn = "0950-0618",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Statistical evaluation of the mechanical properties of high-volume class F fly ash concretes

AU - Yoon, Seyoon

AU - Monteiro, Paulo J. M.

AU - Macphee, Donald E.

AU - Glasser, Fredrik P.

AU - Imbabi, Mohammed Salah-Eldin

N1 - Acknowledgements The experimental data reported in this publication was obtained with the kind support of U C Berkeley research grant No. KUS-l1-004021, awarded by King Abdullah University of Science and Technology (KAUST). The processing and evaluation of this data was carried out with the kind support of University of Aberdeen research grant No. ENG016 RGG0593, awarded by the Gulf Organization of Research and Development (GORD), Qatar. Furthermore, we greatly appreciate to John Masson and Dougie Craighead for their experimental assistance.

PY - 2014/3/15

Y1 - 2014/3/15

N2 - High-Volume Fly Ash (HVFA) concretes are seen by many as a feasible solution for sustainable, low embodied carbon construction. At the moment, fly ash is classified as a waste by-product, primarily of thermal power stations. In this paper the authors experimentally and statistically investigated the effects of mix-design factors on the mechanical properties of high-volume class F fly ash concretes. A total of 240 and 32 samples were produced and tested in the laboratory to measure compressive strength and Young's modulus respectively. Applicability of the CEB-FIP (Comite Euro-international du Beton - Federation Internationale de la Precontrainte) and ACI (American Concrete Institute) Building Model Code (Thomas, 2010; ACI Committee 209, 1982) [1,2] to the experimentally-derived mechanical property data for HVFA concretes was established. Furthermore, using multiple linear regression analysis, Mean Squared Residuals (MSRs) were obtained to determine whether a weight- or volume-based mix proportion is better to predict the mechanical properties of HVFA concrete. The significance levels of the design factors, which indicate how significantly the factors affect the HVFA concrete's mechanical properties, were determined using analysis of variance (ANOVA) tests. The results show that a weight-based mix proportion is a slightly better predictor of mechanical properties than volume-based one. The significance level of fly ash substitution rate was higher than that of w/b ratio initially but reduced over time. (C) 2014 Elsevier Ltd. All rights reserved.

AB - High-Volume Fly Ash (HVFA) concretes are seen by many as a feasible solution for sustainable, low embodied carbon construction. At the moment, fly ash is classified as a waste by-product, primarily of thermal power stations. In this paper the authors experimentally and statistically investigated the effects of mix-design factors on the mechanical properties of high-volume class F fly ash concretes. A total of 240 and 32 samples were produced and tested in the laboratory to measure compressive strength and Young's modulus respectively. Applicability of the CEB-FIP (Comite Euro-international du Beton - Federation Internationale de la Precontrainte) and ACI (American Concrete Institute) Building Model Code (Thomas, 2010; ACI Committee 209, 1982) [1,2] to the experimentally-derived mechanical property data for HVFA concretes was established. Furthermore, using multiple linear regression analysis, Mean Squared Residuals (MSRs) were obtained to determine whether a weight- or volume-based mix proportion is better to predict the mechanical properties of HVFA concrete. The significance levels of the design factors, which indicate how significantly the factors affect the HVFA concrete's mechanical properties, were determined using analysis of variance (ANOVA) tests. The results show that a weight-based mix proportion is a slightly better predictor of mechanical properties than volume-based one. The significance level of fly ash substitution rate was higher than that of w/b ratio initially but reduced over time. (C) 2014 Elsevier Ltd. All rights reserved.

KW - Fly ash

KW - Concrete

KW - Mix design

KW - Compressive strength

KW - Young's modulus

KW - Statistical analysis

KW - ANOVA test

KW - self-compacting concrete

KW - compressive strength

KW - prediction

KW - cement

KW - model

KW - size

U2 - 10.1016/j.conbuildmat.2013.12.077

DO - 10.1016/j.conbuildmat.2013.12.077

M3 - Article

VL - 54

SP - 432

EP - 442

JO - Construction and building materials

JF - Construction and building materials

SN - 0950-0618

ER -

Statistical evaluation of the mechanical properties of high-volume class F fly ash concretes

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Keywords

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