Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures
The objective of this paper is to examine the possible use of new blended cements containing calcareous fly ash in structural concrete, potentially adequate for structural elements of nuclear power plants. The investigation included five new cements made with different contents of non-clinker consti...
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doaj-23949efad01043348bdc2fed92b48d542020-11-24T22:18:44ZengMDPI AGMaterials1996-19442016-01-01911810.3390/ma9010018ma9010018Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable StructuresMichał A. Glinicki0Daria Jóźwiak-Niedźwiedzka1Karolina Gibas2Mariusz Dąbrowski3Institute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego, Warsaw 02-106, PolandInstitute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego, Warsaw 02-106, PolandInstitute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego, Warsaw 02-106, PolandInstitute of Fundamental Technological Research, Polish Academy of Sciences, 5B Pawińskiego, Warsaw 02-106, PolandThe objective of this paper is to examine the possible use of new blended cements containing calcareous fly ash in structural concrete, potentially adequate for structural elements of nuclear power plants. The investigation included five new cements made with different contents of non-clinker constituents: calcareous fly ash, siliceous fly ash, ground granulated blastfurnace slag, and a reference cement—ordinary Portland cement. The influence of innovative cements on the resistance of concrete to chloride and carbonation exposure was studied. Additionally, an evaluation of the microstructure was performed using optical microscopy on concrete thin sections. Test results revealed a substantial improvement of the resistance to chloride ion penetration into concrete containing blended cements. The resistance was higher for increased clinker replacement levels and increased with curing time. However, concrete made with blended cements exhibited higher depth of carbonation than the Portland cement concrete, except the Portland-fly ash cement with 14.3% of calcareous fly ash. The thin sections analysis confirmed the values of the carbonation depth obtained from the phenolphthalein test. Test results indicate the possible range of application for new cements containing calcareous fly ash.http://www.mdpi.com/1996-1944/9/1/18blended cementscalcareous fly ashchloride migrationcarbonationdurabilitynuclear shielding concretethin sections |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Michał A. Glinicki Daria Jóźwiak-Niedźwiedzka Karolina Gibas Mariusz Dąbrowski |
spellingShingle |
Michał A. Glinicki Daria Jóźwiak-Niedźwiedzka Karolina Gibas Mariusz Dąbrowski Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures Materials blended cements calcareous fly ash chloride migration carbonation durability nuclear shielding concrete thin sections |
author_facet |
Michał A. Glinicki Daria Jóźwiak-Niedźwiedzka Karolina Gibas Mariusz Dąbrowski |
author_sort |
Michał A. Glinicki |
title |
Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures |
title_short |
Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures |
title_full |
Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures |
title_fullStr |
Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures |
title_full_unstemmed |
Influence of Blended Cements with Calcareous Fly Ash on Chloride Ion Migration and Carbonation Resistance of Concrete for Durable Structures |
title_sort |
influence of blended cements with calcareous fly ash on chloride ion migration and carbonation resistance of concrete for durable structures |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2016-01-01 |
description |
The objective of this paper is to examine the possible use of new blended cements containing calcareous fly ash in structural concrete, potentially adequate for structural elements of nuclear power plants. The investigation included five new cements made with different contents of non-clinker constituents: calcareous fly ash, siliceous fly ash, ground granulated blastfurnace slag, and a reference cement—ordinary Portland cement. The influence of innovative cements on the resistance of concrete to chloride and carbonation exposure was studied. Additionally, an evaluation of the microstructure was performed using optical microscopy on concrete thin sections. Test results revealed a substantial improvement of the resistance to chloride ion penetration into concrete containing blended cements. The resistance was higher for increased clinker replacement levels and increased with curing time. However, concrete made with blended cements exhibited higher depth of carbonation than the Portland cement concrete, except the Portland-fly ash cement with 14.3% of calcareous fly ash. The thin sections analysis confirmed the values of the carbonation depth obtained from the phenolphthalein test. Test results indicate the possible range of application for new cements containing calcareous fly ash. |
topic |
blended cements calcareous fly ash chloride migration carbonation durability nuclear shielding concrete thin sections |
url |
http://www.mdpi.com/1996-1944/9/1/18 |
work_keys_str_mv |
AT michałaglinicki influenceofblendedcementswithcalcareousflyashonchlorideionmigrationandcarbonationresistanceofconcretefordurablestructures AT dariajozwiakniedzwiedzka influenceofblendedcementswithcalcareousflyashonchlorideionmigrationandcarbonationresistanceofconcretefordurablestructures AT karolinagibas influenceofblendedcementswithcalcareousflyashonchlorideionmigrationandcarbonationresistanceofconcretefordurablestructures AT mariuszdabrowski influenceofblendedcementswithcalcareousflyashonchlorideionmigrationandcarbonationresistanceofconcretefordurablestructures |
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1725781874093064192 |