Publication result detail

Evaluation of optimal replacement of natural aggregates by recycled concrete aggregates to achieve sufficient durability

NOVÁKOVÁ, I.; SJÅFJELL, J.; VENKRBEC, V.

Original Title

Evaluation of optimal replacement of natural aggregates by recycled concrete aggregates to achieve sufficient durability

English Title

Evaluation of optimal replacement of natural aggregates by recycled concrete aggregates to achieve sufficient durability

Type

Paper in proceedings outside WoS and Scopus

Original Abstract

The use of recycled concrete aggregate (RCA) is one way to reduce the depletion of raw materials for the production of concrete. In this article RCA was tested and evaluated. Concrete with 25 to 80 % of RCA was examined in terms of its durability performance, particularly capillary absorption and shrinkage. Capillary absorption testing showed that RCA has better or identical results as the reference mixture. Concrete with a high proportion of RCA had reduced durability, even with reduced durability the concrete maintains all the requirements of the Norwegian Standard. RCA as partial replacement in smaller quantities show good properties

English abstract

The use of recycled concrete aggregate (RCA) is one way to reduce the depletion of raw materials for the production of concrete. In this article RCA was tested and evaluated. Concrete with 25 to 80 % of RCA was examined in terms of its durability performance, particularly capillary absorption and shrinkage. Capillary absorption testing showed that RCA has better or identical results as the reference mixture. Concrete with a high proportion of RCA had reduced durability, even with reduced durability the concrete maintains all the requirements of the Norwegian Standard. RCA as partial replacement in smaller quantities show good properties

Keywords

Concrete; RCA; Recycling; Durability; Mix Design; Testing; Particle Shape; Flakiness Index; LA; Grading; Water Absorption; Density; Slump; Air; Compressive Strength; E-modulus; Capillary Absorption; Shrinkage

Key words in English

Concrete; RCA; Recycling; Durability; Mix Design; Testing; Particle Shape; Flakiness Index; LA; Grading; Water Absorption; Density; Slump; Air; Compressive Strength; E-modulus; Capillary Absorption; Shrinkage

Authors

NOVÁKOVÁ, I.; SJÅFJELL, J.; VENKRBEC, V.

RIV year

2023

Released

16.08.2022

Publisher

Swedish Concrete Association

Location

Stockholm

Book

XXIV Nordic Concrete Research Symposium 2022, Proceedings

Pages from

1

Pages to

5

Pages count

5

URL

https://ncr.betongforeningen.se/

BibTex

@inproceedings{BUT178808,
  author="Iveta {Nováková} and Jørgen Johnsen {Sjåfjell} and Václav {Venkrbec}",
  title="Evaluation of optimal replacement of natural aggregates by recycled concrete aggregates to achieve sufficient durability",
  booktitle="XXIV Nordic Concrete Research Symposium 2022, Proceedings",
  year="2022",
  pages="1--5",
  publisher="Swedish Concrete Association",
  address="Stockholm",
  url="https://ncr.betongforeningen.se/"
}