Contribution of mixture design to chemical and autogenous shrinkage of concrete at early ages

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

In this work, autogenous shrinkage at early ages (<24 h) was accurately measured by linear displacements on slabs simulating field constructions. The best correlation of the amount of chemical to autogenous shrinkage was found at the time of 4 h after the final setting time. It was possible to account for test arrangement artifacts, such as thermal dilation, to get a measure of pure autogenous shrinkage. Many material parameters, such as superplasticizer (SP) and aggregate amount, effected the magnitude of autogenous shrinkage in secondary ways. These consequential effects, such as amount of bleed water and time of setting, were accounted for in the slab measurements. Recommendations are given for reducing the likelihood of cracking due to early age chemical and autogenous shrinkage.
Original languageEnglish
Pages (from-to)464 - 472
Number of pages9
JournalCement and Concrete Research
Volume35
Issue number3
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

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Keywords

  • autogenous deformation
  • curing
  • fresh concrete
  • shrinkage
  • concrete
  • concrete durability

Cite this

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abstract = "In this work, autogenous shrinkage at early ages (<24 h) was accurately measured by linear displacements on slabs simulating field constructions. The best correlation of the amount of chemical to autogenous shrinkage was found at the time of 4 h after the final setting time. It was possible to account for test arrangement artifacts, such as thermal dilation, to get a measure of pure autogenous shrinkage. Many material parameters, such as superplasticizer (SP) and aggregate amount, effected the magnitude of autogenous shrinkage in secondary ways. These consequential effects, such as amount of bleed water and time of setting, were accounted for in the slab measurements. Recommendations are given for reducing the likelihood of cracking due to early age chemical and autogenous shrinkage.",
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Contribution of mixture design to chemical and autogenous shrinkage of concrete at early ages. / Holt, Erika.

In: Cement and Concrete Research, Vol. 35, No. 3, 2005, p. 464 - 472.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Contribution of mixture design to chemical and autogenous shrinkage of concrete at early ages

AU - Holt, Erika

PY - 2005

Y1 - 2005

N2 - In this work, autogenous shrinkage at early ages (<24 h) was accurately measured by linear displacements on slabs simulating field constructions. The best correlation of the amount of chemical to autogenous shrinkage was found at the time of 4 h after the final setting time. It was possible to account for test arrangement artifacts, such as thermal dilation, to get a measure of pure autogenous shrinkage. Many material parameters, such as superplasticizer (SP) and aggregate amount, effected the magnitude of autogenous shrinkage in secondary ways. These consequential effects, such as amount of bleed water and time of setting, were accounted for in the slab measurements. Recommendations are given for reducing the likelihood of cracking due to early age chemical and autogenous shrinkage.

AB - In this work, autogenous shrinkage at early ages (<24 h) was accurately measured by linear displacements on slabs simulating field constructions. The best correlation of the amount of chemical to autogenous shrinkage was found at the time of 4 h after the final setting time. It was possible to account for test arrangement artifacts, such as thermal dilation, to get a measure of pure autogenous shrinkage. Many material parameters, such as superplasticizer (SP) and aggregate amount, effected the magnitude of autogenous shrinkage in secondary ways. These consequential effects, such as amount of bleed water and time of setting, were accounted for in the slab measurements. Recommendations are given for reducing the likelihood of cracking due to early age chemical and autogenous shrinkage.

KW - autogenous deformation

KW - curing

KW - fresh concrete

KW - shrinkage

KW - concrete

KW - concrete durability

U2 - 10.1016/j.cemconres.2004.05.009

DO - 10.1016/j.cemconres.2004.05.009

M3 - Article

VL - 35

SP - 464

EP - 472

JO - Cement and Concrete Research

JF - Cement and Concrete Research

SN - 0008-8846

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ER -