Journal
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
Volume 29, Issue 4, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)MT.1943-5533.0001705
Keywords
Cement; Adhesive; Graphene oxide; Tensile strength; Compressive strength; Pull-off
Categories
Funding
- Ministry of Higher Education and Scientific Research in Iraq
- Higher Committee for Education Development in Iraq
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Adhesive materials play a key role in any strengthening system for concrete structures. Traditional organic adhesives have a major limitation of poor fire resistance; hence, developing an alternative inorganic material is needed. This paper aims to present an innovative cement-based adhesive, which has been fabricated and verified using a number of tests. A nanomaterial represented by graphene oxide and a series of cementitious materials was used in this work. Fresh properties such as setting time and flowability were tested to ensure suitability for practical applications. Mechanical properties were tested in terms of compressive, tensile, and pull-off strengths. The experimental results proved the adequate performance of the innovative cement-based adhesive in terms of fresh properties and mechanical strength. The results show that the adhesive mixture has a pot life up to 120min with a flow of 7.5%, and remarkably high 13.8MPa tensile, 101MPa compressive, and 1.2MPa pull-off strengths.
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