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Influence of low curing temperatures on the tensile response of low clinker strain hardening UHPFRC under full restraint

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Influence of low curing temperatures on the tensile response of low clinker strain hardening UHPFRC under full restraint. / Hafiz, Mohamed Abdul; Skibsted, Jørgen; Denarié, Emmanuel.

In: Cement and Concrete Research, Vol. 128, 105940, 2020.

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Hafiz, Mohamed Abdul ; Skibsted, Jørgen ; Denarié, Emmanuel. / Influence of low curing temperatures on the tensile response of low clinker strain hardening UHPFRC under full restraint. In: Cement and Concrete Research. 2020 ; Vol. 128.

Bibtex

@article{08dda81dd797462e83ff4ba09f4fe723,
title = "Influence of low curing temperatures on the tensile response of low clinker strain hardening UHPFRC under full restraint",
abstract = "The tensile response of strain hardening UHPFRC under full restraint, subjected to curing temperatures of 20 °C, 10 °C, 5 °C, was investigated for two types of mixes with silica fume; Mix I with pure type I cement and Mix II with 50% replacement of cement with limestone filler, both having a similar steel fibrous mix. The development of the elastic modulus, tensile strength, autogenous shrinkage and eigenstresses were put into perspective with the hydration kinetics. Two phases of pozzolanic reaction with different rates of consumption of silica fume were identified. A systematic increase of the autogenous shrinkage and eigenstresses with the curing temperatures was observed. The eigenstresses development was much slower in the case of Mix II, owing to its larger relaxation potential. The eigenstresses in Mix I reached the strain hardening domain after one month, whereas the same in Mix II were only approaching the strain hardening domain after three months.",
keywords = "Autogenous shrinkage, Eigenstresses under full restraint, Low curing temperature, Solid state Si MAS NMR, UHPFRC",
author = "Hafiz, {Mohamed Abdul} and J{\o}rgen Skibsted and Emmanuel Denari{\'e}",
year = "2020",
doi = "10.1016/j.cemconres.2019.105940",
language = "English",
volume = "128",
journal = "Cement and Concrete Research",
issn = "0008-8846",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Influence of low curing temperatures on the tensile response of low clinker strain hardening UHPFRC under full restraint

AU - Hafiz, Mohamed Abdul

AU - Skibsted, Jørgen

AU - Denarié, Emmanuel

PY - 2020

Y1 - 2020

N2 - The tensile response of strain hardening UHPFRC under full restraint, subjected to curing temperatures of 20 °C, 10 °C, 5 °C, was investigated for two types of mixes with silica fume; Mix I with pure type I cement and Mix II with 50% replacement of cement with limestone filler, both having a similar steel fibrous mix. The development of the elastic modulus, tensile strength, autogenous shrinkage and eigenstresses were put into perspective with the hydration kinetics. Two phases of pozzolanic reaction with different rates of consumption of silica fume were identified. A systematic increase of the autogenous shrinkage and eigenstresses with the curing temperatures was observed. The eigenstresses development was much slower in the case of Mix II, owing to its larger relaxation potential. The eigenstresses in Mix I reached the strain hardening domain after one month, whereas the same in Mix II were only approaching the strain hardening domain after three months.

AB - The tensile response of strain hardening UHPFRC under full restraint, subjected to curing temperatures of 20 °C, 10 °C, 5 °C, was investigated for two types of mixes with silica fume; Mix I with pure type I cement and Mix II with 50% replacement of cement with limestone filler, both having a similar steel fibrous mix. The development of the elastic modulus, tensile strength, autogenous shrinkage and eigenstresses were put into perspective with the hydration kinetics. Two phases of pozzolanic reaction with different rates of consumption of silica fume were identified. A systematic increase of the autogenous shrinkage and eigenstresses with the curing temperatures was observed. The eigenstresses development was much slower in the case of Mix II, owing to its larger relaxation potential. The eigenstresses in Mix I reached the strain hardening domain after one month, whereas the same in Mix II were only approaching the strain hardening domain after three months.

KW - Autogenous shrinkage

KW - Eigenstresses under full restraint

KW - Low curing temperature

KW - Solid state Si MAS NMR

KW - UHPFRC

UR - http://www.scopus.com/inward/record.url?scp=85075716588&partnerID=8YFLogxK

U2 - 10.1016/j.cemconres.2019.105940

DO - 10.1016/j.cemconres.2019.105940

M3 - Journal article

AN - SCOPUS:85075716588

VL - 128

JO - Cement and Concrete Research

JF - Cement and Concrete Research

SN - 0008-8846

M1 - 105940

ER -