Jan 1, 2013 · In this paper the bond between fiber reinforced cementitious matrix (FRCM) materials made out of a poliparafenilenbenzobisoxazole (PBO) net embedded in a cement based matrix and the concrete is experimentally analyzed.

Jun 21, 2024 · This paper presents experimental and analytical investigations on the tensile and bond behaviour at elevated temperature of a polypara-phenylene-benzo-bisthiazole (PBO) fabric reinforced cementitious matrix (FRCM) system for strengthening concrete elements.

FRCM (Fibre Reinforced Cementitious Matrix) structural strengthening systems consist of the union a high-performance long fibre and a stabilised inorganic matrix used as an adhesive, replacing the epoxy resins of traditional FRP systems.

Feb 1, 2014 · The FRCM composite was comprised of polyparaphenylene benzobisoxazole (PBO) fibers and polymer-modified cement-based mortar. This study indicates that in PBO FRCM–concrete joints debonding mainly occurs at the matrix–fiber interface.

Fabric-reinforced cementitious matrix (FRCM) composites, comprising high-strength fiber textiles embedded within inorganic matrices, represent an effective, cost-efficient, and low-invasive solution for strengthening and retrofitting existing masonry and reinforced concrete structures.

Aug 18, 2023 · Guidelines for the identification, qualification and acceptance control of fiber-reinforced composites with inorganic matrix (FRCM) for strengthening of existing structures.

Innovative composites made by fibre meshes (glass, carbon or polypara-phenylene-benzo-bisthiazole (PBO) fibre meshes) embedded into an inorganic stabilised cementitious matrix called fibre-reinforced cementitious mortars (FRCM) represent a very effective solution for strengthening reinforced concrete beams.

Apr 22, 2022 · In this paper, the results of tests that will be carried out on beams strengthened in shear with polybenzoxazole fabric–reinforced cementitious matrix (PBO-FRCM) composites will be presented and compared with the results of theoretical calculations.

Aug 27, 2021 · The bond behavior of a multilayer bidirectional polyparaphenylene benzobisoxazole (PBO) FRCM composite applied onto a concrete substrate is investigated in this paper.

Dec 1, 2012 · The bond-slip relation is essential in the modeling of the structural behavior of RC elements strengthened with PBO-FRCM, in that it allows to calculate the force that can be transferred to the concrete, the effective anchorage length, …