Applicability of standard equations for predicting mechanical properties of scc

Hakan N. Atahan; David Trejo; Mary Beth D. Hueste

Applicability of standard equations for predicting mechanical properties of scc

Hakan N. Atahan, David Trejo, Mary Beth D. Hueste

Department of Civil Engineering

Texas A&m University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Citations (Scopus)

Abstract

Self-consolidating concrete (SCC) is being implemented throughout the US. Some advantages of SCC include its ease of placement, reduced labor requirements for placing the material, reduced noise when placing, and its improved finish quality. Clearly there are benefits of using this material. However, the AASHTO LRFD specifications were developed based on material characteristics of conventional, normal strength concretes. Because of this, engineers and designers are reluctant to specify and use SCC for bridge applications, possibly making the potential benefits of this material underutilized. This research investigated compressive strength development, modulus of elasticity (MOE), modulus of rupture (MOR), and splitting tensile strength (STS) of SCC mixtures specifically designed for precast, prestressed, concrete bridge girders. The experimental program included two target 16-hour compressive strength levels and two coarse aggregate types (river gravel and crushed limestone) with varying volume fractions. The measured mechanical properties for the SCC mixtures were compared with the results of conventional concrete (CC) mixtures of similar release strengths, as well as the estimated values from the 2006 AASHTO LRFD prediction equations. Results indicate that the AASHTO equations either predict the mechanical properties of SCC fairly well or underestimate the properties of SCC.

Original language	English
Title of host publication	Self-Consolidating Concrete for Precast Prestressed Applications
Editors	Anton K. Schindler, David Trejo, Robert W. Barnes
Publisher	American Concrete Institute
Pages	17-32
Number of pages	16
ISBN (Electronic)	9780870312533
Publication status	Published - 1 Sept 2007
Event	Self-Consolidating Concrete for Precast Prestressed Applications 2007 - At the ACI Fall 2007 Convention - Fajardo, Puerto Rico Duration: 14 Oct 2007 → 18 Oct 2007

Publication series

Name	American Concrete Institute, ACI Special Publication
Volume	SP-247
ISSN (Print)	0193-2527

Conference

Conference	Self-Consolidating Concrete for Precast Prestressed Applications 2007 - At the ACI Fall 2007 Convention
Country/Territory	Puerto Rico
City	Fajardo
Period	14/10/07 → 18/10/07

Bibliographical note

Publisher Copyright:
© 2007 American Concrete Institute. All rights reserved.

Funding

The authors gratefully acknowledge the support from the Texas Department of Transportation (TxDOT) through the Texas Transportation Institute (TTI) at Texas A&M University. Special thanks to Jason Tucker, Ralph Browne, Jennifer Moore, David Mraz, Frank Bailey, and Andrew Griffith of TxDOT. The research team also thanks Eric Koehler and Dr. David Fowler of University of Texas who participated in this project and provided the SCC mixture proportions. The authors also thank Jeff Perry and Matt Potter of the High Bay Structural and Materials Testing Laboratory in the Zachry Department of Civil Engineering at Texas A&M University, and graduate student Young Hoon Kim for their assistance during testing.

Funders	Funder number
TTI
Texas Transportation Institute
Texas Department of Transportation
Texas A and M University

Keywords

AASHTO LRFD specifications
Modulus of elasticity
Modulus of rupture
Prediction equations
Self-consolidating concrete
Splitting tensile strength

Cite this

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title = "Applicability of standard equations for predicting mechanical properties of scc",

abstract = "Self-consolidating concrete (SCC) is being implemented throughout the US. Some advantages of SCC include its ease of placement, reduced labor requirements for placing the material, reduced noise when placing, and its improved finish quality. Clearly there are benefits of using this material. However, the AASHTO LRFD specifications were developed based on material characteristics of conventional, normal strength concretes. Because of this, engineers and designers are reluctant to specify and use SCC for bridge applications, possibly making the potential benefits of this material underutilized. This research investigated compressive strength development, modulus of elasticity (MOE), modulus of rupture (MOR), and splitting tensile strength (STS) of SCC mixtures specifically designed for precast, prestressed, concrete bridge girders. The experimental program included two target 16-hour compressive strength levels and two coarse aggregate types (river gravel and crushed limestone) with varying volume fractions. The measured mechanical properties for the SCC mixtures were compared with the results of conventional concrete (CC) mixtures of similar release strengths, as well as the estimated values from the 2006 AASHTO LRFD prediction equations. Results indicate that the AASHTO equations either predict the mechanical properties of SCC fairly well or underestimate the properties of SCC.",

keywords = "AASHTO LRFD specifications, Modulus of elasticity, Modulus of rupture, Prediction equations, Self-consolidating concrete, Splitting tensile strength",

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Atahan, HN, Trejo, D & Hueste, MBD 2007, Applicability of standard equations for predicting mechanical properties of scc. in AK Schindler, D Trejo & RW Barnes (eds), Self-Consolidating Concrete for Precast Prestressed Applications. American Concrete Institute, ACI Special Publication, vol. SP-247, American Concrete Institute, pp. 17-32, Self-Consolidating Concrete for Precast Prestressed Applications 2007 - At the ACI Fall 2007 Convention, Fajardo, Puerto Rico, 14/10/07.

Applicability of standard equations for predicting mechanical properties of scc. / Atahan, Hakan N.; Trejo, David; Hueste, Mary Beth D.
Self-Consolidating Concrete for Precast Prestressed Applications. ed. / Anton K. Schindler; David Trejo; Robert W. Barnes. American Concrete Institute, 2007. p. 17-32 (American Concrete Institute, ACI Special Publication; Vol. SP-247).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Trejo, David

AU - Hueste, Mary Beth D.

PY - 2007/9/1

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N2 - Self-consolidating concrete (SCC) is being implemented throughout the US. Some advantages of SCC include its ease of placement, reduced labor requirements for placing the material, reduced noise when placing, and its improved finish quality. Clearly there are benefits of using this material. However, the AASHTO LRFD specifications were developed based on material characteristics of conventional, normal strength concretes. Because of this, engineers and designers are reluctant to specify and use SCC for bridge applications, possibly making the potential benefits of this material underutilized. This research investigated compressive strength development, modulus of elasticity (MOE), modulus of rupture (MOR), and splitting tensile strength (STS) of SCC mixtures specifically designed for precast, prestressed, concrete bridge girders. The experimental program included two target 16-hour compressive strength levels and two coarse aggregate types (river gravel and crushed limestone) with varying volume fractions. The measured mechanical properties for the SCC mixtures were compared with the results of conventional concrete (CC) mixtures of similar release strengths, as well as the estimated values from the 2006 AASHTO LRFD prediction equations. Results indicate that the AASHTO equations either predict the mechanical properties of SCC fairly well or underestimate the properties of SCC.

AB - Self-consolidating concrete (SCC) is being implemented throughout the US. Some advantages of SCC include its ease of placement, reduced labor requirements for placing the material, reduced noise when placing, and its improved finish quality. Clearly there are benefits of using this material. However, the AASHTO LRFD specifications were developed based on material characteristics of conventional, normal strength concretes. Because of this, engineers and designers are reluctant to specify and use SCC for bridge applications, possibly making the potential benefits of this material underutilized. This research investigated compressive strength development, modulus of elasticity (MOE), modulus of rupture (MOR), and splitting tensile strength (STS) of SCC mixtures specifically designed for precast, prestressed, concrete bridge girders. The experimental program included two target 16-hour compressive strength levels and two coarse aggregate types (river gravel and crushed limestone) with varying volume fractions. The measured mechanical properties for the SCC mixtures were compared with the results of conventional concrete (CC) mixtures of similar release strengths, as well as the estimated values from the 2006 AASHTO LRFD prediction equations. Results indicate that the AASHTO equations either predict the mechanical properties of SCC fairly well or underestimate the properties of SCC.

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KW - Modulus of rupture

KW - Prediction equations

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KW - Splitting tensile strength

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AN - SCOPUS:79551592284

T3 - American Concrete Institute, ACI Special Publication

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BT - Self-Consolidating Concrete for Precast Prestressed Applications

A2 - Schindler, Anton K.

A2 - Trejo, David

A2 - Barnes, Robert W.

PB - American Concrete Institute

T2 - Self-Consolidating Concrete for Precast Prestressed Applications 2007 - At the ACI Fall 2007 Convention

Y2 - 14 October 2007 through 18 October 2007

ER -

Applicability of standard equations for predicting mechanical properties of scc

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

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Cite this