1. bookVolume 66 (2022): Issue 1 (July 2022)
Journal Details
License
Format
Journal
eISSN
2545-2819
First Published
30 Sep 2018
Publication timeframe
2 times per year
Languages
English
access type Open Access

When and How Should Chloride Profiles be Calibrated for Paste Fraction?

Published Online: 11 Jul 2022
Volume & Issue: Volume 66 (2022) - Issue 1 (July 2022)
Page range: 1 - 18
Received: 22 Dec 2021
Accepted: 16 May 2022
Journal Details
License
Format
Journal
eISSN
2545-2819
First Published
30 Sep 2018
Publication timeframe
2 times per year
Languages
English
Abstract

Due to stochastic and systematic variations in the paste fraction, data for total chloride content are occasionally calibrated using parallelly measured calcium content as a measure of the actual paste fraction − assuming non-calcareous aggregates and no calcium leaching. Data from concrete exposed at the marine Fehmarn Belt Exposure Site questions the latter assumption. In the outer zone experiencing calcium leaching (ten mm after ten years), errors will be introduced by calcium calibration. To account for the wall effect, calcium profiles from cores taken before exposure might be used to correct for the systematically higher paste fraction at cast surfaces.

Keywords

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