| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Piotrowski, Tomasz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Development of Impact-Echo Multitransducer Device for Automated Concrete Homogeneity Assessmentcitations
- 2020Influence of Activators on Mechanical Properties of Modified Fly Ash Based Geopolymer Mortarscitations
- 2020Influence of polymer modification on the microstructure of shielding concrete citations
- 2020Relation between microstructure, technical properties and neutron radiation shielding efficiency of concretecitations
- 2018Mechanical Properties of Polymer Cement-Fiber-Reinforced Concrete (PC-FRC): Comparison Based on Experimental Studies
- 2016Bound water content measurement in cement pastes by stoichiometric and gravimetric analyses
- 2014Near-to-surface properties affecting bond strength in concrete repaircitations
- 2013Surface properties of concrete and criteria for adhesion of repair systems
- 2013Surface properties of concrete and criteria for adhesion of repair systems
- 2013Effect of introducing recycled polymer aggregate on the properties of C-PC compositescitations
- 2009Some theoretical and practical considerations about surface preparation of concrete and adhesion of repair systems.
Places of action
| Organizations | Location | People |
|---|
article
Influence of polymer modification on the microstructure of shielding concrete
Abstract
In this paper an analysis of the influence of polymer modification on the microstructure,shielding properties against neutrons, and compressive strength of heavy-weight magnetiteconcrete is carried out. The modifications involve the addition of acrylic or epoxy dispersions aswell as micro- or/and macrofibers. A computer image analysis method is used to evaluate themicrostructure of concretes and parameters of pore structure are calculated; these parametersinclude relative volume fraction, relative specific surface area, and pore arrangement ratios,including a proprietary ratio based on Voronoi tessellation. An assessment of significance ofdifferences between stereological parameters of reference concrete and polymer modified concretes,as well as the impact of polymer form (dispersion or fibers) on shielding properties and compressivestrength is carried out using Student’s t-test. The results show that except for the effect of theaddition of both polypropylene micro- and macrofibers on the relative volume of pores, all othermodifications result in statistically significant changes in the values of stereological parameters.Nevertheless, it is shown that neither polymer dispersions nor fibers have a statistically significantimpact on shielding properties, but that they do influence compressive strength.