Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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1.080 Topics available

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977 Locations available

693.932 PEOPLE
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Girskas, Giedrius

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Vilnius Gediminas Technical University

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (12/12 displayed)

  • 2022Study of the Course of Cement Hydration in the Presence of Waste Metal Particles and Pozzolanic Additives1citations
  • 2022Use of Natural Zeolite and Glass Powder Mixture as Partial Replacement of Portland Cement: The Effect on Hydration, Properties and Porosity18citations
  • 2019Study on the Effect of Graphene Oxide with Low Oxygen Content on Portland Cement Based Composites28citations
  • 2018The effect of multi-walled carbon nanotubes on the rheological properties and hydration process of cement pastescitations
  • 2017The effect of synthetic zeolite on hardened cement paste microstructure and freeze-thaw durability of concrete31citations
  • 2017Analysis of durability testing of concrete landscaping units4citations
  • 2016Porous permeable high-alumina ceramic materials for macro- and microfiltrationcitations
  • 2016The effect of synthetic zeolite admixture on the durability of concrete paving blocks4citations
  • 2016Lithuanian quarry aggregates concrete effects of alkaline corrosion testscitations
  • 2016LITHUANIAN QUARRY AGGREGATES CONCRETE EFFECTS OF ALKALINE CORROSION TESTS / LIETUVOS KARJERŲ UŽPILDŲ POVEIKIO BETONO ŠARMINEI KOROZIJAI TYRIMAIcitations
  • 2015PROPERTIES OF CONCRETE MODIFIED BY AMORPHOUS ALUMINA SILICATE4citations
  • 2013THE EFFECT OF SYNTHETIC ZEOLITE ON THE VISCOSITY OF CEMENT PASTE / SINTETINIO CEOLITO PRIEDO ĮTAKA CEMENTO TEŠLOS KLAMPUMUI1citations

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Pundienė, Ina
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Pranckevičienė, Jolanta
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Kligys, Modestas
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Klimash, Yurij A.
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Rutkauskas, Aurimas
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Co-Authors (by relevance)

  • Pundienė, Ina
  • Pranckevičienė, Jolanta
  • Kligys, Modestas
  • Kriptavičius, Dalius
  • Skripkiunas, Gintautas
  • Stonys, Rimvydas
  • Antonovič, Valentin
  • Kudžma, Andrius
  • Škamat, Jelena
  • Kuznetsov, Denis
  • Krasnikovs, Andrejs
  • Kairytė, Agnė
  • Leonavičius, Dainius
  • Skripkiūnas, Gintautas
  • Nagrockienė, Džigita
  • Pauliukevich, Yurij G.
  • Kizinievič, Olga
  • Hundzilovich, Mikalai M.
  • Klimash, Yurij A.
  • Rutkauskas, Aurimas
  • Daugėla, Aurelijus
OrganizationsLocationPeople

article

LITHUANIAN QUARRY AGGREGATES CONCRETE EFFECTS OF ALKALINE CORROSION TESTS / LIETUVOS KARJERŲ UŽPILDŲ POVEIKIO BETONO ŠARMINEI KOROZIJAI TYRIMAI

  • Girskas, Giedrius
  • Rutkauskas, Aurimas
Abstract

<jats:p>Aggregate alkaline corrosion of cement in concrete is going to respond in sodium and potassium hydroxide (lye) with active SiO2 found in some aggregates. During this reaction, the concrete has resulted in significant internal stresses which cause deformation of the concrete, cracking and disintegration. The reaction is slow and concrete signs of decomposition appear only after a few months or years. The study used two different aggregates quarries. Studies show that Lithuania gravel contaminated with reactive particles having amorphous silicon dioxide reacting with cement in sodium and potassium hydroxide and the resulting alkaline concrete corrosion. It was found that, according to AAR 2 large aggregates include Group II – potentially reactive because of their expansion after 14 days, higher than 0.1%.Užpildų šarminė korozija betone vyksta reaguojant cemente esantiems natrio ir kalio hidroksidams (šarmams) su aktyviu SiO2, esančiu kai kuriuose užpilduose. Vykstant šiai reakcijai betone susidaro didelių vidinių įtempių, kurie sukelia betono deformacijas, pleišėjimą ir suirimą. Reakcija vyksta lėtai, betono irimo požymių atsiranda tik po kelių mėnesių ar metų. Tyrimams buvo naudojami dviejų skirtingų karjerų užpildai. Atlikus tyrimus nustatyta, kad Lietuvos žvyro karjerai užteršti reaktyviomis dalelėmis, turinčiomis amorfinio silicio dioksido, reaguojančio su cemente esančiais natrio ir kalio šarmais, ir sukeliančiomis betono šarminę koroziją. Nustatyta, kad pagal AAR 2 stambieji užpildai priskiriami II grupei – galimai reaktyviems užpildams, nes jų plėtra po 14 parų viršija 0,1 %.</jats:p>

Topics
  • impedance spectroscopy
  • amorphous
  • corrosion
  • reactive
  • Sodium
  • cement
  • Potassium
  • Silicon
  • decomposition