An experimental study on the repair of concrete crack by electrochemical technique

Title: An experimental study on the repair of concrete crack by electrochemical technique
Author(s): J.-S. Ryu
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 34
Issue: 241
Issue date: 2001-08-01
Publication year: 2001
Pages: 433 - 437
Total Pages: 5
Nb references: 7
Language: English

Abstract: Roller Compacted Concrete is a very dry material consolidated by the use of a powerful external vibratory compaction.
This material is used mainly in gravity or arch/gravity dams,and pavements.
RCC dam construction methodology,by concrete layers,involves a high number and an extensive area of horizontal joints.
These joints are the weakest parts of RCC in terms of strength and permeability,being one hindrance to more widespread use of RCC.
This study analyses the influence of different parameters on the direct tensile strength of the joints,namely the relative humidity in the concrete surface,the setting and hardening state of concrete,and the cold joint treatment.
The results obtained indicated that the decrease in the joint quality with the time of exposure is continuous being important the compaction of the upper layer before the initial setting time of the lower layer.
Cold joint treatments should expose aggregate particles.

Online publication: 2001-06-27
Classification: Technical Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13666