Details
| Original language | German |
|---|---|
| Pages (from-to) | 716-724 |
| Number of pages | 9 |
| Journal | Beton- und Stahlbetonbau |
| Volume | 118 |
| Issue number | 10 |
| Publication status | Published - 19 Oct 2023 |
Abstract
Image-based quality conctrol – part 3: homogeneity of fresh concrete. Homogeneity – i.e. the uniformity of the composition and properties of concrete in its fresh and hardened state – is a central requirement for concrete as a building material. Variations in homogeneity usually expressed in local changes, e.g. in the modulus of elasticity, strength or durability. Especially in the case of highly flowable (≥ F5) and self-compacting concretes (SCC) but also, for example, in the case of air entrained concretes, homogeneity is a time-dependent variable and changes due to segregation processes such as sedimentation and bleeding or as a result of unsuitable processing. An evaluation of the homogeneity of the fresh concrete is only possible visualy with the current testing methods on construction site. Building on the assessable properties already presented in the first two parts of this article, the range of properties of image-based quality control is extended to include the homogeneity of the fresh concrete. For this purpose, visually detectable properties of the fresh concrete are used within the scope of the flow table test – paste separation in the edge area and geometric distribution of the aggregate on the surface.
ASJC Scopus subject areas
- Engineering(all)
- Building and Construction
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In: Beton- und Stahlbetonbau, Vol. 118, No. 10, 19.10.2023, p. 716-724.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Bildbasierte Frischbetonprüfung
T2 - Teil 3: Homogenität des Frischbetons
AU - Schack, Tobias
AU - Coenen, Max
AU - Haist, Michael
PY - 2023/10/19
Y1 - 2023/10/19
N2 - Image-based quality conctrol – part 3: homogeneity of fresh concrete. Homogeneity – i.e. the uniformity of the composition and properties of concrete in its fresh and hardened state – is a central requirement for concrete as a building material. Variations in homogeneity usually expressed in local changes, e.g. in the modulus of elasticity, strength or durability. Especially in the case of highly flowable (≥ F5) and self-compacting concretes (SCC) but also, for example, in the case of air entrained concretes, homogeneity is a time-dependent variable and changes due to segregation processes such as sedimentation and bleeding or as a result of unsuitable processing. An evaluation of the homogeneity of the fresh concrete is only possible visualy with the current testing methods on construction site. Building on the assessable properties already presented in the first two parts of this article, the range of properties of image-based quality control is extended to include the homogeneity of the fresh concrete. For this purpose, visually detectable properties of the fresh concrete are used within the scope of the flow table test – paste separation in the edge area and geometric distribution of the aggregate on the surface.
AB - Image-based quality conctrol – part 3: homogeneity of fresh concrete. Homogeneity – i.e. the uniformity of the composition and properties of concrete in its fresh and hardened state – is a central requirement for concrete as a building material. Variations in homogeneity usually expressed in local changes, e.g. in the modulus of elasticity, strength or durability. Especially in the case of highly flowable (≥ F5) and self-compacting concretes (SCC) but also, for example, in the case of air entrained concretes, homogeneity is a time-dependent variable and changes due to segregation processes such as sedimentation and bleeding or as a result of unsuitable processing. An evaluation of the homogeneity of the fresh concrete is only possible visualy with the current testing methods on construction site. Building on the assessable properties already presented in the first two parts of this article, the range of properties of image-based quality control is extended to include the homogeneity of the fresh concrete. For this purpose, visually detectable properties of the fresh concrete are used within the scope of the flow table test – paste separation in the edge area and geometric distribution of the aggregate on the surface.
KW - digital quality control
KW - flow table test
KW - homogeneity
KW - image-based method
KW - segregation
UR - http://www.scopus.com/inward/record.url?scp=85170690039&partnerID=8YFLogxK
U2 - 10.1002/best.202300055
DO - 10.1002/best.202300055
M3 - Artikel
AN - SCOPUS:85170690039
VL - 118
SP - 716
EP - 724
JO - Beton- und Stahlbetonbau
JF - Beton- und Stahlbetonbau
SN - 0005-9900
IS - 10
ER -