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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Acceptance Criteria for Concrete and Masonry Strengthening Using Fabric-Reinforced Cementitious Matrix (FRCM) and Steel Reinforced Grout (SRG) Composites
Author(s): Mahmut Ekenel, Francisco De Caso y Basalo, Antonio Nanni
Publication: Special Publication
Appears on pages(s): 4.1-4.6
Keywords: Fiber-reinforced cementitious matrix, steel reinforced grout, building codes, concrete and masonry strengthening, composite materials
Abstract:Repair and strengthening of concrete and masonry structures using fabric-reinforced cementitious matrix
(FRCM) and streel-reinforced grout (SRG) are emerging technologies in the industry allowing engineers and
contractors to effectively remove deficiencies, improve structural performance and prolong life of existing concrete
or masonry structures. FRCM is a composite consisting of one or more layers of cement- or hydraulic-based matrix
reinforced with dry fibers in the form of open fabric. Similarly, SRG consists of a matrix reinforced with cords of
twisted micro steel wires woven to form a fabric (mesh). Acceptance Criteria AC434 was published to provide
guidelines for the evaluation of FRCM/SRG strengthening of concrete and masonry structural elements because the
building codes in the USA do not have requirements for testing and determination of structural capacity, reliability
and serviceability of this class of composite technologies. AC434 establishes requirements for testing and
calculations that can lead to the issuance of a product research reports as evidence of a product’s building code
compliance. This paper summarizes and presents the key features of AC434 and its relationship to ACI committee
549.4R, the guide to design and construction of externally bonded FRCM and SRG systems for repair and
strengthening concrete and masonry structures.
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