Alisa Machner (Author), Marie Helene Bjørndal (Author), Aljoša Šajna (Author), Lucija Hanžič (Author), Yushan Gu (Author), Benoit Bary (Author), Klaartje De Weerdt (Author)

Abstract

The increasing demand for concrete and thereby Portland cement, creates the need for novel low-clinker Portland composite cements. Concretes prepared with such novel composite cements need to show similar or even improved durability compared to concrete prepared with commonly used Portland composite cements. This study represents a part of the EnDurCrete project that focuses on the durability of concrete produced with novel low-clinker cements, containing high-value industrial by-products. More specifically, we investigated the chloride ingress resistance of such concrete. Concrete cylinders were submitted to chloride ingress by bulk diffusion. The chloride ingress resistance was investigated on concrete samples by %XRF scanning and chloride titration. In addition, the chloride binding capacity of these novel binders was investigated on paste samples by determining chloride binding isotherms for both binders. In the next step of the project, these experimental results will be matched with an advanced model, which is being developed within the project. By combining modelling with experimental verification, we aim to reach a better understanding of the fundamental chloride ingress mechanisms acting on novel types of concrete. The overall goal of the work is to produce a concrete with lower cost, lower environmental footprint and with verified similar or improved durability.

Keywords

prodor kloridov;trajnost;nova veziva;nizek CO2;vzdržnost;beton;odprti dostop;chloride ingress;durability;novel binders;Low C02;sustainability;concrete;open access;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: ZAG - Slovenian National Building and Civil Engineering Institute
Publisher: Slovenian National Building and Civil Engineering Institute (ZAG)
UDC: 620.1/.2
COBISS: 64745219 Link will open in a new window
Parent publication: Construction materials for a sustainable future
Views: 9
Downloads: 2
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Other data

Secondary language: Slovenian
Secondary keywords: prodor kloridov;trajnost;nova veziva;nizek CO2;vzdržnost;beton;
Source comment: Nasl. z nasl. zaslona; Opis vira z dne 26. 5. 2021;
Pages: Str. 217-224
ID: 22455001
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