Next Article in Journal
Engineering of 2D Ti3C2 MXene Surface Charge and its Influence on Biological Properties
Previous Article in Journal
Influences and Mechanisms of Nano-C-S-H Gel Addition on Fresh Properties of the Cement-Based Materials with Sucrose as Retarder
Previous Article in Special Issue
Influence of Crimped Steel Fibre on Properties of Concrete Based on an Aggregate Mix of Waste and Natural Aggregates
Open AccessArticle

Effect of Placing Self-Compacting Concrete Bottom up on the Quality of Bond Conditions

Department of Geomechanics, Civil Engineering and Geotechnics, AGH University of Science and Technology, 30-059 Cracow, Poland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(10), 2346; https://doi.org/10.3390/ma13102346
Received: 17 April 2020 / Revised: 15 May 2020 / Accepted: 19 May 2020 / Published: 20 May 2020
(This article belongs to the Special Issue Concrete Technology and Mechanical Properties of Concretes)
A self-compacting concrete (SCC) mixture, due to its special rheological properties, may be placed differently than in traditional variants. The paper presents the results of a study on the effect of a bottom-up placing direction on the quality of bond conditions between steel and self-compacting concrete. Elements with overall dimensions of 160 × 480 × 1600 mm consisting of elementary samples with dimensions of the bond test basic modules were constructed. Ribbed steel rebars with diameters of 16 mm were used and located in formworks perpendicularly to the concrete placing direction. Bond tests were carried out according to the pull-out method. The bottom-up placing contributed to the uniformity of the bond conditions quality in the test elements and an overall improvement of the bond properties, especially in its top part. Given the increasing implementation of alternative methods of mix placing and the promising results, the topic should be further investigated. View Full-Text
Keywords: self-compacting concrete; bottom-up placing; pull-out test; bond properties self-compacting concrete; bottom-up placing; pull-out test; bond properties
Show Figures

Figure 1

MDPI and ACS Style

Kucharska, M.; Dybeł, P. Effect of Placing Self-Compacting Concrete Bottom up on the Quality of Bond Conditions. Materials 2020, 13, 2346.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop