EVALUATION OF CREEP AND SHRINKAGE OF PATENTED MIXTURE OF UHPC WITH APPLIED HEAT-TREATMENT

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00355788" target="_blank" >RIV/68407700:21110/22:00355788 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-030-83719-8_27" target="_blank" >https://doi.org/10.1007/978-3-030-83719-8_27</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-030-83719-8_27" target="_blank" >10.1007/978-3-030-83719-8_27</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EVALUATION OF CREEP AND SHRINKAGE OF PATENTED MIXTURE OF UHPC WITH APPLIED HEAT-TREATMENT

Popis výsledku v původním jazyce

In this paper the description and evaluation of results of experimental verification of rheological properties of patented mixture of ultra-high-performance concrete (UHPC) is presented. Specimens were cured with various curing regimes including curing by an increased temperature and in a water saturated environment. For the evaluation of the results an adapted model B4 is used, which is considered the most advanced rheological material model based on great consistency with large set of experimental results. It seems to be viable for use for prediction of creep and shrinkage of UHPC as it predicts long-term strains by incorporating effect of volume of additives and admixtures used in the fresh concrete. Model B4 also takes into effect thermal treatment of fresh concrete which accelerates cement hydration in early age. Current model B4 has several limitations that are often exceeded by characteristics of UHPC. In this paper, these limitations are identified and viable adaptation of model B4 is presented.

Název v anglickém jazyce

EVALUATION OF CREEP AND SHRINKAGE OF PATENTED MIXTURE OF UHPC WITH APPLIED HEAT-TREATMENT

Popis výsledku anglicky

In this paper the description and evaluation of results of experimental verification of rheological properties of patented mixture of ultra-high-performance concrete (UHPC) is presented. Specimens were cured with various curing regimes including curing by an increased temperature and in a water saturated environment. For the evaluation of the results an adapted model B4 is used, which is considered the most advanced rheological material model based on great consistency with large set of experimental results. It seems to be viable for use for prediction of creep and shrinkage of UHPC as it predicts long-term strains by incorporating effect of volume of additives and admixtures used in the fresh concrete. Model B4 also takes into effect thermal treatment of fresh concrete which accelerates cement hydration in early age. Current model B4 has several limitations that are often exceeded by characteristics of UHPC. In this paper, these limitations are identified and viable adaptation of model B4 is presented.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Fibre Reinforced Concrete: Improvements and Innovations II

ISBN

978-3-030-83718-1

ISSN

2211-0844

e-ISSN

—

Počet stran výsledku

12

Strana od-do

307-318

Název nakladatele

Springer, Cham

Místo vydání

—

Místo konání akce

Valencia

Datum konání akce

20. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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