2024年7月1日 · The GFRP grid is directly embedded in UHPC to form the composite plate, and the orthotropic arrangement of the GFRP grid can assist the plate to bear force bi-directionally. The built-in form of the GFRP grid is expected to ensure the effective connection with UHPC and avoid the aging problem of GFRP under the action of ultraviolet.

2023年2月1日 · To solve the problems of traditional concrete T-beam structures, such as heavy weight and easy cracking of webs, this study proposes a new (GFRP) grid web-concrete composite beam structure based on the mechanical characteristics of fiber-reinforced polymer (FRP) materials.

2023年10月1日 · These researches clearly demonstrated that the application of impregnated FRP grid is effective in increasing the flexural strength of RC beams. A new FRP strengthening scheme that combines an organic matrix (typical of FRP manual lay-up) with pre impregnated FRP grid (typical of FRCM/ECC) was investigated in this research.

2022年1月4日 · In the present study, fiber-reinforced plastics (FRP) grid-reinforced concrete with very rapid hardening polymer (VRHP) mortar composites were fabricated using three types of design methods for the FRP grid (hand lay-up method, resin infusion method, and prepreg oven vacuum bagging method), along with two types of fibers (carbon fiber and glass ...

TL;DR: In this article, a comprehensive review on experimental studies investigating the mechanical performance of pultruded fiber-reinforced polymer (FRP) composites subjected to long-term environmental effects, including water/moisture, alkaline solutions, acidic solutions, low/high temperatures, ultraviolet radiation, freeze-thaw cycles, wet-...

Glass fiber reinforced polymer (GFRP) rebars reinforced in concrete are susceptible to degradation in harsh alkaline environments such as moist reinforced concrete...

The GFRP-reinforced specimen is detailed in a similar scheme but using a GFRP grid. The behaviour of the two specimens under reversed cyclic loading, their load-storey drift envelope relationship and energy dissipation ability were compared. The GFRP-reinforced specimen showed a predominantly elastic behaviour up to failure.

2008年8月1日 · The tested walls were strengthened with grids made from glass fiber-reinforced polymer (GFRP) embedded within a rapid-setting sprayed polyurea. Various GFRP grid reinforced polyurea layouts were investigated, and consisted of strips oriented in either the vertical or horizontal direction and installed on one or both faces.

The test results show that the use of GFRP grid with epoxy binder is an efficient way to improve flexural strength, shear strength, compression, cracking behavior, and energy absorption capability. In comparison with different layers of GFRP grid, the use of 5 layers is the most efficient in flexural and shear strength and ductility.

2021年12月1日 · In this paper, a new hybrid GFRP bar reinforced concrete beam was proposed by combining CFRP grids and an ECC layer as a stay-in-place formwork. Eight beams with CFRP grid-reinforced ECC formworks, one beam with a pure ECC formwork and one control beam were tested to investigate their flexural performance. The following conclusions can be drawn: