Details
| Original language | English |
|---|---|
| Title of host publication | fib Symposium PRAGUE 2011 |
| Subtitle of host publication | Concrete Engineering for Excellence and Efficiency, Proceedings |
| Editors | Vlastimil Sruma |
| Pages | 285-288 |
| Number of pages | 4 |
| ISBN (electronic) | 9788087158296 |
| Publication status | Published - 2011 |
| Event | fib Symposium PRAGUE 2011: Concrete Engineering for Excellence and Efficiency - Praha, Czech Republic Duration: 8 Jun 2011 → 10 Jun 2011 |
Publication series
| Name | fib Symposium PRAGUE 2011: Concrete Engineering for Excellence and Efficiency, Proceedings |
|---|---|
| Volume | 1 |
Abstract
For the production of exposed concrete two different approaches, namely the classic approach and the self-compacting concrete (SCC) approach, are being widely used. However, further researches in the area of exposed concrete technology have also led to the development of a new concept. Classic Approach: In most exposed concrete projects, ordinary concrete that is rich in fine grains content are used with stiff to soft consistencies. Such concretes usually contain conventional plasticizers, and are poured in the formwork by means of buckets. However, greater care needs to be taken during formwork construction as well as concrete placing and compacting. SCC Approach: This approach adopts the concepts from SCC. Here, all the necessary measures should be taken to make sure that the stringent requirements of SCC are fulfilled. The concrete delivered to the construction site should also have a good uniformity. Hannover Approach: In this approach, a concrete is designed in such a way that it has higher stability against segregation and bleeding while also possessing a favourable consistency for good workability. This is achieved by optimizing the powder content of the concrete. The flowable consistency and the stability characteristics of the concrete are adjusted by using superplasticizers (PCE) and stabilizers. To prevent additional air entrainment, the concrete has to be casted using a pump according to the contractor method.
Keywords
- Aesthetic concrete, Architectural concrete, Attractive concrete, Exposed concrete, Optimum powder content, Segregation resistance, Self-compacting
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
- Engineering(all)
- Architecture
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
fib Symposium PRAGUE 2011: Concrete Engineering for Excellence and Efficiency, Proceedings. ed. / Vlastimil Sruma. 2011. p. 285-288 (fib Symposium PRAGUE 2011: Concrete Engineering for Excellence and Efficiency, Proceedings; Vol. 1).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Three different approaches to produce high quality exposed concrete
AU - Lohaus, Ludger
AU - Gläser, Thomas
AU - Werner, Michael
PY - 2011
Y1 - 2011
N2 - For the production of exposed concrete two different approaches, namely the classic approach and the self-compacting concrete (SCC) approach, are being widely used. However, further researches in the area of exposed concrete technology have also led to the development of a new concept. Classic Approach: In most exposed concrete projects, ordinary concrete that is rich in fine grains content are used with stiff to soft consistencies. Such concretes usually contain conventional plasticizers, and are poured in the formwork by means of buckets. However, greater care needs to be taken during formwork construction as well as concrete placing and compacting. SCC Approach: This approach adopts the concepts from SCC. Here, all the necessary measures should be taken to make sure that the stringent requirements of SCC are fulfilled. The concrete delivered to the construction site should also have a good uniformity. Hannover Approach: In this approach, a concrete is designed in such a way that it has higher stability against segregation and bleeding while also possessing a favourable consistency for good workability. This is achieved by optimizing the powder content of the concrete. The flowable consistency and the stability characteristics of the concrete are adjusted by using superplasticizers (PCE) and stabilizers. To prevent additional air entrainment, the concrete has to be casted using a pump according to the contractor method.
AB - For the production of exposed concrete two different approaches, namely the classic approach and the self-compacting concrete (SCC) approach, are being widely used. However, further researches in the area of exposed concrete technology have also led to the development of a new concept. Classic Approach: In most exposed concrete projects, ordinary concrete that is rich in fine grains content are used with stiff to soft consistencies. Such concretes usually contain conventional plasticizers, and are poured in the formwork by means of buckets. However, greater care needs to be taken during formwork construction as well as concrete placing and compacting. SCC Approach: This approach adopts the concepts from SCC. Here, all the necessary measures should be taken to make sure that the stringent requirements of SCC are fulfilled. The concrete delivered to the construction site should also have a good uniformity. Hannover Approach: In this approach, a concrete is designed in such a way that it has higher stability against segregation and bleeding while also possessing a favourable consistency for good workability. This is achieved by optimizing the powder content of the concrete. The flowable consistency and the stability characteristics of the concrete are adjusted by using superplasticizers (PCE) and stabilizers. To prevent additional air entrainment, the concrete has to be casted using a pump according to the contractor method.
KW - Aesthetic concrete
KW - Architectural concrete
KW - Attractive concrete
KW - Exposed concrete
KW - Optimum powder content
KW - Segregation resistance
KW - Self-compacting
UR - http://www.scopus.com/inward/record.url?scp=85015277293&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85015277293
T3 - fib Symposium PRAGUE 2011: Concrete Engineering for Excellence and Efficiency, Proceedings
SP - 285
EP - 288
BT - fib Symposium PRAGUE 2011
A2 - Sruma, Vlastimil
T2 - fib Symposium PRAGUE 2011: Concrete Engineering for Excellence and Efficiency
Y2 - 8 June 2011 through 10 June 2011
ER -