Kompatibilitas Susut Antara Material Perbaikan dan Beton

Kristiawan, SA (2011) Kompatibilitas Susut Antara Material Perbaikan dan Beton. Jurnal Teknik Sipil, 18 (2). pp. 103-118. ISSN 0853-2982

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    Abstract

    Delamination and spalling of concrete cover are common phenomena observed in structural concrete with severe reinforcement corrosion. Repair of this damaged concrete may be carried out by patching method using appropriate repair material. The material for patching application should be compatible with the concrete being repaired. One of the compatibility issues being concerned is the fact that differential shrinkage exists between repair material and parent concrete. This paper presents a method to evaluate shrinkage compatibility between repair material and parent concrete. The development of the method was based on quantification of error coefficient (M) of restrained shrinkage history occurred in repair material-concrete composite which induced tensile stress. Restrained shrinkage history is a fraction of differential free-shrinkage between repair material and parent concrete. Using value of M and estimated ultimate shrinkage, the magnitude of induced tensile stress can be estimated. The magnitude of induced tensile stress may be compared with the tensile capacity of repair material to determine if the material is compatible or not for patching damaged parent concrete. In the application of this method, data of shrinkage observed on non-composite specimens and data of total deformation observed on composite specimens are required. The method has been applied to evaluate the compatibility between repair materials investigated in this research and concrete, with the conclusion is that all repair materials are compatible. Keywords: Coefficient of error, compatibility, repair material, shrinkage, tensile stress.

    Item Type: Article
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Divisions: Fakultas Teknik > Teknik Sipil
    Depositing User: Arissa Aprilia Nurcahyani
    Date Deposited: 18 Apr 2014 20:56
    Last Modified: 18 Apr 2014 20:56
    URI: https://eprints.uns.ac.id/id/eprint/12021

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