Thermo – mechanical model of concrete pavement in hardening phasis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351274" target="_blank" >RIV/68407700:21110/21:00351274 - isvavai.cz</a>

Result on the web

<a href="https://master.grad.hr/cetra/ocs/index.php/cetra6/cetra2020" target="_blank" >https://master.grad.hr/cetra/ocs/index.php/cetra6/cetra2020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5592/CO/CETRA.2020" target="_blank" >10.5592/CO/CETRA.2020</a>

Result language

angličtina

Original language name

Thermo – mechanical model of concrete pavement in hardening phasis

Original language description

This paper is focused on the analysis of concrete pavements using finite element method (FEM). Specifically, it deals with the analysis of temperatures in the initial phasis of hardening and their influence on mechanical behavior of concrete pavement. High temperatures from hydration and climatic conditions in the early phase of concrete hardening co-operate and may initiate the formation of a network of micro-cracks on the surface of the concrete slab. The resulting temperatures (from hydration and climate) can theoretically be positively influenced by determining the start of concreting, so that the maximum temperatures do not meet at the same time. However, from a practical point of view the use of retarders is more realistic. Another possibility is to reduce the hydration heat by changing the composition of the concrete mixture (amount of cement, type of cement, use of alternative binders). Based on the knowledge of the material composition of the concrete and the specific temperature behavior during the concrete laying, it will be possible to predict the durability of concrete pavement in the future. Using weak formulation FEM model with quadratic base functions, the 2D heat transfer model was created. Boundary conditions were determined from experimental measurement on highway D1 in the Czech Republic. When this model was fitted to experimental data, the 3D coupled thermo - mechanical model was created. Soil and concrete elastic material characteristics had been taken over from Czech technical norms. Soil was modelled as Winkler-Pasternak 2D plate. Parameters c1 a c2 were assessed from comparison with 3D model with soil modelled as multiple layer system.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20104 - Transport engineering

Project

<a href="/en/project/GA21-03118S" target="_blank" >GA21-03118S: Thermo-hygro-mechanical model of concrete pavements</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Article name in the collection

Road and Rail Infrastructure VI, Proceedings of the Conference CETRA 2020*

ISBN

978-953-8168-48-2

ISSN

—

e-ISSN

1848-9850

Number of pages

7

Pages from-to

989-995

Publisher name

University of Zagreb

Place of publication

Zagreb

Event location

Pula (online)

Event date

May 20, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—