Micromechanics-based sensitivity analyses regarding ITZ-induced concrete strength

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F17%3A00479192" target="_blank" >RIV/68378297:_____/17:00479192 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Micromechanics-based sensitivity analyses regarding ITZ-induced concrete strength

Original language description

Based on a continuum micromechanics approach, we model the evolution of the uniaxial compressive strength of cementitious materials during early material ages. Three observation scales are introduced, namely concrete, cement paste, and hydrate foam (comprising capillary porosity and needle-shaped hydrates). The loading applied at the concrete level is first concentrated to the interfacial transition zones (ITZs) surrounding the aggregates and then further concentrated to the micron-sized hydrates, where failure is modelled according to a Mohr-Coulomb criterion. After successful model validation against independent strength experiments, we study the sensitivity of the strength with respect to changes in the concrete mix design.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Article name in the collection

Proceedings of the 2nd International RILEM/COST conference on Early age cracking and serviceability in cement-based materials and structures - EAC2.

ISBN

978-2-35158-199-5

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

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Publisher name

RILEM Publications S.A.R.L.

Place of publication

Paris

Event location

Brusel

Event date

Sep 12, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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