SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING
The magnitude and time evolution of shrinkage are influenced by numerous factors which are implemented in the design codes often in a different way. The time-dependent behavior of concrete in structures sensitive to creep and shrinkage should be verified by means of short-term laboratory measurement...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Technical University in Prague
2021-04-01
|
| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/7192 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839595336381759488 |
|---|---|
| author | Lenka Dohnalová Petr Havlásek Vít Šmilauer Pavel Reiterman Vendula Davidová |
| author_facet | Lenka Dohnalová Petr Havlásek Vít Šmilauer Pavel Reiterman Vendula Davidová |
| author_sort | Lenka Dohnalová |
| collection | DOAJ |
| description | The magnitude and time evolution of shrinkage are influenced by numerous factors which are implemented in the design codes often in a different way. The time-dependent behavior of concrete in structures sensitive to creep and shrinkage should be verified by means of short-term laboratory measurements. Extrapolation of drying shrinkage from short-term measurements is an illposed problem. The process is extremely slow but can be accelerated by reducing the specimen size. The knowledge of the size-effect on drying shrinkage is a necessity to establish the transition from the laboratory to the structural size. In the literature, the experimental data on such size-effect are insufficient. For this reason a new experiment was developed to study this phenomenon on small-scale specimens made of cement mortar and the results from the first year are summarized in this paper. The measured data are validated by coupled FEM hygro-mechanical simulations. |
| format | Article |
| id | doaj-art-f20cdc78ffd74b01b6c8bb908bc8ee9a |
| institution | Matheson Library |
| issn | 2336-5382 |
| language | English |
| publishDate | 2021-04-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-f20cdc78ffd74b01b6c8bb908bc8ee9a2025-08-02T23:14:02ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822021-04-01301610.14311/APP.2021.30.00014430SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELINGLenka Dohnalová0Petr Havlásek1Vít Šmilauer2Pavel Reiterman3Vendula Davidová4Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicThe magnitude and time evolution of shrinkage are influenced by numerous factors which are implemented in the design codes often in a different way. The time-dependent behavior of concrete in structures sensitive to creep and shrinkage should be verified by means of short-term laboratory measurements. Extrapolation of drying shrinkage from short-term measurements is an illposed problem. The process is extremely slow but can be accelerated by reducing the specimen size. The knowledge of the size-effect on drying shrinkage is a necessity to establish the transition from the laboratory to the structural size. In the literature, the experimental data on such size-effect are insufficient. For this reason a new experiment was developed to study this phenomenon on small-scale specimens made of cement mortar and the results from the first year are summarized in this paper. The measured data are validated by coupled FEM hygro-mechanical simulations.https://ojs.cvut.cz/ojs/index.php/APP/article/view/7192concretedryingmodelingshrinkagesize effect. |
| spellingShingle | Lenka Dohnalová Petr Havlásek Vít Šmilauer Pavel Reiterman Vendula Davidová SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING Acta Polytechnica CTU Proceedings concrete drying modeling shrinkage size effect. |
| title | SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING |
| title_full | SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING |
| title_fullStr | SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING |
| title_full_unstemmed | SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING |
| title_short | SIZE EFFECT ON THE ULTIMATE DRYING SHRINKAGE OF CEMENT MORTAR: 1-YEAR EXPERIMENT AND NUMERICAL MODELING |
| title_sort | size effect on the ultimate drying shrinkage of cement mortar 1 year experiment and numerical modeling |
| topic | concrete drying modeling shrinkage size effect. |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/7192 |
| work_keys_str_mv | AT lenkadohnalova sizeeffectontheultimatedryingshrinkageofcementmortar1yearexperimentandnumericalmodeling AT petrhavlasek sizeeffectontheultimatedryingshrinkageofcementmortar1yearexperimentandnumericalmodeling AT vitsmilauer sizeeffectontheultimatedryingshrinkageofcementmortar1yearexperimentandnumericalmodeling AT pavelreiterman sizeeffectontheultimatedryingshrinkageofcementmortar1yearexperimentandnumericalmodeling AT venduladavidova sizeeffectontheultimatedryingshrinkageofcementmortar1yearexperimentandnumericalmodeling |