Effectiveness of Class C Fly Ash on Mitigating Alkali-Silica Reaction in Concrete Pavement

Kromel E. Hanna, George Morcous, Maher K. Tadros

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Throughout the state of Nebraska, Portland cement concrete pavements (PCCP) use Platte River sand and gravel exclusively as a fine aggregate. It has been well established that this aggregate is a reactive aggregate that can potentially lead to alkali-silica reaction (ASR). Fly ash has been used as an economic and effective way for ASR mitigation. However, Class C fly ash produced by Nebraska power plants has been identified as a major contributor to the premature deterioration of PCCP. This paper presents the experimental work performed to assess the effect of using Class C fly ash in PCCP to control ASR. The ASTM C 1567 test method was adopted to evaluate the expansion in 16 different mixes that contain different proportions of Class C fly ash, Class F fly ash, slag, and cement. Four mixes have been chosen for overall performance testing based on the ASTM C 1567 test results and material cost. These mixes, which contain at least 15% Class C fly ash in addition to Class F fly ash and/or slag, showed better performance over the current standard mix.

Original languageEnglish (US)
Pages (from-to)167-181
Number of pages15
JournalInternational Journal of Construction Education and Research
Volume5
Issue number3
DOIs
StatePublished - Jul 1 2009

Fingerprint

Concrete pavements
Fly ash
Silica
Portland cement
power plant
performance
Slags
river
costs
Gravel
economics
Deterioration
Power plants
Cements
Sand
Rivers
Economics
Testing
Costs

Keywords

  • Alkali-silica reaction
  • Concrete durability
  • Concrete pavement
  • Fly ash
  • Reactive aggregate

ASJC Scopus subject areas

  • Building and Construction
  • Education

Cite this

Effectiveness of Class C Fly Ash on Mitigating Alkali-Silica Reaction in Concrete Pavement. / Hanna, Kromel E.; Morcous, George; Tadros, Maher K.

In: International Journal of Construction Education and Research, Vol. 5, No. 3, 01.07.2009, p. 167-181.

Research output: Contribution to journalArticle

@article{01968a78846c43b984ae52f665b70496,
title = "Effectiveness of Class C Fly Ash on Mitigating Alkali-Silica Reaction in Concrete Pavement",
abstract = "Throughout the state of Nebraska, Portland cement concrete pavements (PCCP) use Platte River sand and gravel exclusively as a fine aggregate. It has been well established that this aggregate is a reactive aggregate that can potentially lead to alkali-silica reaction (ASR). Fly ash has been used as an economic and effective way for ASR mitigation. However, Class C fly ash produced by Nebraska power plants has been identified as a major contributor to the premature deterioration of PCCP. This paper presents the experimental work performed to assess the effect of using Class C fly ash in PCCP to control ASR. The ASTM C 1567 test method was adopted to evaluate the expansion in 16 different mixes that contain different proportions of Class C fly ash, Class F fly ash, slag, and cement. Four mixes have been chosen for overall performance testing based on the ASTM C 1567 test results and material cost. These mixes, which contain at least 15{\%} Class C fly ash in addition to Class F fly ash and/or slag, showed better performance over the current standard mix.",
keywords = "Alkali-silica reaction, Concrete durability, Concrete pavement, Fly ash, Reactive aggregate",
author = "Hanna, {Kromel E.} and George Morcous and Tadros, {Maher K.}",
year = "2009",
month = "7",
day = "1",
doi = "10.1080/15578770903152781",
language = "English (US)",
volume = "5",
pages = "167--181",
journal = "International Journal of Construction Education and Research",
issn = "1550-3984",
publisher = "Brigham Young University",
number = "3",

}

TY - JOUR

T1 - Effectiveness of Class C Fly Ash on Mitigating Alkali-Silica Reaction in Concrete Pavement

AU - Hanna, Kromel E.

AU - Morcous, George

AU - Tadros, Maher K.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Throughout the state of Nebraska, Portland cement concrete pavements (PCCP) use Platte River sand and gravel exclusively as a fine aggregate. It has been well established that this aggregate is a reactive aggregate that can potentially lead to alkali-silica reaction (ASR). Fly ash has been used as an economic and effective way for ASR mitigation. However, Class C fly ash produced by Nebraska power plants has been identified as a major contributor to the premature deterioration of PCCP. This paper presents the experimental work performed to assess the effect of using Class C fly ash in PCCP to control ASR. The ASTM C 1567 test method was adopted to evaluate the expansion in 16 different mixes that contain different proportions of Class C fly ash, Class F fly ash, slag, and cement. Four mixes have been chosen for overall performance testing based on the ASTM C 1567 test results and material cost. These mixes, which contain at least 15% Class C fly ash in addition to Class F fly ash and/or slag, showed better performance over the current standard mix.

AB - Throughout the state of Nebraska, Portland cement concrete pavements (PCCP) use Platte River sand and gravel exclusively as a fine aggregate. It has been well established that this aggregate is a reactive aggregate that can potentially lead to alkali-silica reaction (ASR). Fly ash has been used as an economic and effective way for ASR mitigation. However, Class C fly ash produced by Nebraska power plants has been identified as a major contributor to the premature deterioration of PCCP. This paper presents the experimental work performed to assess the effect of using Class C fly ash in PCCP to control ASR. The ASTM C 1567 test method was adopted to evaluate the expansion in 16 different mixes that contain different proportions of Class C fly ash, Class F fly ash, slag, and cement. Four mixes have been chosen for overall performance testing based on the ASTM C 1567 test results and material cost. These mixes, which contain at least 15% Class C fly ash in addition to Class F fly ash and/or slag, showed better performance over the current standard mix.

KW - Alkali-silica reaction

KW - Concrete durability

KW - Concrete pavement

KW - Fly ash

KW - Reactive aggregate

UR - http://www.scopus.com/inward/record.url?scp=70449561307&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70449561307&partnerID=8YFLogxK

U2 - 10.1080/15578770903152781

DO - 10.1080/15578770903152781

M3 - Article

VL - 5

SP - 167

EP - 181

JO - International Journal of Construction Education and Research

JF - International Journal of Construction Education and Research

SN - 1550-3984

IS - 3

ER -