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Durability of low-clinker concrete with water-repelling admixtures

Abstract

The study under auspices of the BE-sTrONG project examined concretes with low cement content (higher w/b) with hydrophobic admixtures from Polyhedral Oligomeric Silsesquioxanes (POSS) and Rapeseed Oils (RO), containing 50% of clinker and 50% of either ground granulated blast furnace slag or natural volcanic pozzolan, against market’s references in marine environment. The investigated admixtures showed reduction of chloride intrusion and permeability, especially RO, against the references (w/b 0.40) corresponding to almost 30% less w/b. RO, however, causes reduction in compressive strength, which yet may be confronted adjusting its composition.

Category

Academic article

Language

English

Author(s)

Affiliation

  • SINTEF Community / Architecture, Materials and Structures
  • SINTEF Industry / Process Technology
  • University of Stavanger

Date

22.08.2025

Year

2025

Published in

XXVth Nordic Concrete Federation Symposium 2025

View this publication at Norwegian Research Information Repository