Determination of the chloride diffusion coefficient in blended cement mortars

V. Elfmarkova, P.R. Spiesz, H.J.H. Brouwers

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Abstract

Literature shows that the RCM test development and experience concerns only Ordinary Portland cement. Therefore, a validation of this test method is needed for other types of binders. This study analyzes the application of RCM test for mortars prepared with different binders: Ordinary Portland cement (OPC), ground granulated blast – furnace slag (GGBS), fly ash (FA) and silica fume (SF). The silver nitrate colourimetric method is applied here to assess of the chloride penetration depth, which is subsequently used for the calculation of the chloride diffusion coefficient DRCM according to NT Build 492. A comparison is given between the results of the total chloride concentration profiles measured in mortar after the RCM test and results indirectly obtained from extended chloride transport model. The performed analyses show that the accuracy of AgNO3 colourimetric method is sufficient for the determination of the DRCM for different type of binders.
Original languageEnglish
Title of host publicationProceedings of the International Conference of Non-Traditional Cement and Concrete (NTCC2014), June 16-19, 2014, Brno, Czech Republic
EditorsV. Bilek, Z. Kersner
Place of PublicationBrno
PublisherNOVPRESS
Pages41-44
ISBN (Print)978-80-214-4867-4
Publication statusPublished - 2014
Event5th International Conference on Non-Traditional Cement and Concrete (NTCC2014), 16-19 June 2014, Brno, Czech Republic - Brno, Czech Republic
Duration: 16 Jun 201419 Jun 2014
http://www.fce.vutbr.cz/stm/fracture/symposium2014/

Conference

Conference5th International Conference on Non-Traditional Cement and Concrete (NTCC2014), 16-19 June 2014, Brno, Czech Republic
Abbreviated titleNTCC 2014
Country/TerritoryCzech Republic
CityBrno
Period16/06/1419/06/14
OtherNon-Traditional Cement & Concrete V (NTCC 2014)
Internet address

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