Recommendation of Casting Procedures for Thick Slabs in Order to Reduce Cracks and Evaluation of Production, Transport and Casting Influence on Foundation Slabs Quality

Kód výsledku v IS VaVaI

RIV/68407700:21110/06:00123436 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recommendation of Casting Procedures for Thick Slabs in Order to Reduce Cracks and Evaluation of Production, Transport and Casting Influence on Foundation Slabs Quality

Popis výsledku v původním jazyce

Foundation slabs can have significant thickness in case of large structures and thus the problem with their concreting arises due to the hydration heat generation. In case that the inconvenient process of concreting is applied the cracks can occur and water tightness can be damaged.It shows that, for correct analysis of damage occurrence, it is necessary to know not only strain field but, with respect to hydration heat generation, also the temperature and moisture fields are needed. This requirement isgiven by the facts that the moisture contained in pores directly affects strength, conductivity, hydration velocity, concrete ageing and creep. Our department developed software package SIFEL. Actually, the analysis of the coupled problem has been implemented for thermo-hydro-mechanical problem. B3 model has been implemented for modeling creep and shrinkage and scalar isotropic damage model has been also implemented. This code will be used for analyses of foundation slab problems.

Název v anglickém jazyce

Recommendation of Casting Procedures for Thick Slabs in Order to Reduce Cracks and Evaluation of Production, Transport and Casting Influence on Foundation Slabs Quality

Popis výsledku anglicky

Foundation slabs can have significant thickness in case of large structures and thus the problem with their concreting arises due to the hydration heat generation. In case that the inconvenient process of concreting is applied the cracks can occur and water tightness can be damaged.It shows that, for correct analysis of damage occurrence, it is necessary to know not only strain field but, with respect to hydration heat generation, also the temperature and moisture fields are needed. This requirement isgiven by the facts that the moisture contained in pores directly affects strength, conductivity, hydration velocity, concrete ageing and creep. Our department developed software package SIFEL. Actually, the analysis of the coupled problem has been implemented for thermo-hydro-mechanical problem. B3 model has been implemented for modeling creep and shrinkage and scalar isotropic damage model has been also implemented. This code will be used for analyses of foundation slab problems.

Druh

C - Kapitola v odborné knize

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

1M0579: Centrum integrovaného navrhování progresivních stavebních konstrukcí

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Technical Sheets 2005, Volume 1: Initial Technical Sheets

ISBN

80-01-03630-8

Počet stran výsledku

2

Strana od-do

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Počet stran knihy

188

Název nakladatele

CIDEAS-Centrum integrovaného navrhování progresivních stavebních konstrukcí

Místo vydání

Praha

Kód UT WoS kapitoly

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