| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Garbacz, Andrzej
Warsaw University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2021Nanomodification, Hybridization and Temperature Impact on Shear Strength of Basalt Fiber-Reinforced Polymer Barscitations
- 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
- 2020Specification Guidelines for Surface Preparation of Concrete prior to Repair
- 2020The effect of temperature on the mechanical properties of hybrid FRP bars applicable for the reinforcing of concrete structurescitations
- 2020Relation between microstructure, technical properties and neutron radiation shielding efficiency of concretecitations
- 2018Development of Innovative HFRP Barscitations
- 2018On Mechanical Characteristics of HFRP Bars with Various Types of Hybridizationcitations
- 2016Effects of limestone fillers on surface free energy and electrical conductivity of the interstitial solution of cement mixes
- 2016A quantitative approach to the concept of concrete repair compatibility
- 2015Concrete Surface Engineeringcitations
- 2015Tensile properties of polymer repair materials - effect of test parameters
- 2015Properties of Cement Mortars Modified with Ceramic Waste Fillers citations
- 2015Tensile Properties of Polymer Repair Materials - effect of test parameters
- 2014Effect of misalignment on pulloff test results: numerical and experimental assessmentscitations
- 2014Near-to-surface properties affecting bond strength in concrete repaircitations
- 2014Effects of limestone fillers on surface free energy and electrical conductivity of the interstitial solution of cement mixescitations
- 2014Effects of limestone fillers on surface free energy and electrical conductivity of the interstitial solution of cement mixescitations
- 2013Concrete-like polymer composites with fly ashes – Comparative studycitations
- 2013Surface properties of concrete and criteria for adhesion of repair systems
- 2013Surface properties of concrete and criteria for adhesion of repair systems
- 2013A surface engineering approach applicable to concrete repair engineeringcitations
- 2013Effect of introducing recycled polymer aggregate on the properties of C-PC compositescitations
- 2013Investigation on Concrete Beams Reinforced with Basalt Rebars as an Effective Alternative of Conventional R/C Structurescitations
- 2009Evaluation of the effect of load eccentricity on pull-off strength
- 2009Surfology: concrete substrate evaluation prior to repair
- 2009New trends in concrete-polymer composite materials and systems
- 2009Some theoretical and practical considerations about surface preparation of concrete and adhesion of repair systems.
- 2008New trends in concrete-polymers composite materials and systems
- 2006Relationship between surface characteristics and superficial cohesion of concrete
- 2005Relationship between surface characteristics and superficial cohesion of concrete
- 2005Effect of concrete surface treatment on adhesion in repair systemscitations
- 2001On the characterization of polymer concrete fracture surfacecitations
Places of action
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article
Relation between microstructure, technical properties and neutron radiation shielding efficiency of concrete
Abstract
The paper presents a study on the properties of New Generation Shielding Concrete (NGS-Concrete) modifiedby materials containing fast neutron moderators and thermal neutron absorbers. The reference ordinaryconcrete (OC) was modified by the change of the coarse aggregate from crushed granite to magnetiteone and cement from CEM III 42.5N to CEM I 42.5R. The addition of gadolinium oxide, polypropylenemacro- or/and microfibers, acrylic dispersion, acrylic dispersion together with gadolinium oxide, epoxydispersion, and finally the inorganic chemical compound containing boron (NaBH4) was used as well.The experimental program included: microstructure studies (analysis of fracture surface, visual andimage analysis of cross sections, observations using scanning electron microscopy – SEM, volume andabsolute density and total porosity calculated from gravimetric measurements), compressive strength,ultrasonic pulse velocity (UPV) as well as neutron radiation shielding efficiency measurement expressedas half value layer (HVL), determined by the neutron radiation equivalent dose reduction. The relationswere investigated using a multiple regression analysis of experimental results. A good correlationbetween the compressive strength and ultrasonic pulse velocity for all concretes was confirmed. The neutronradiation shielding efficiency expressed as HVL was mainly influenced by volume density (VD). Themathematical model HVL (VD) turned out to be the most reliable, whereas any other independent variableadded to this bivariate model was statistically not significant. It was concluded that neutron radiationshielding depends on the volume density of concrete, which is determined mainly by phase andatomic composition changes of aggregate and a lesser extent by microstructure changes