Experimental Research on the Effect of Fiberglass on the Performance of Epoxy Asphalt Concrete

Abstract

Fiberglass prepared from broken waste glass can be used in epoxy asphalt mixtures for performance enhancement and a toughening effect. There is no systematic study on the influence mechanism of the size and the amount of glass fiber on the properties of epoxy asphalt mixtures. The effects of fiberglass on the properties of epoxy asphalt concrete were evaluated using a tensile test, three-point bending test, four-point bending fatigue test and an SEM scanning test. The results verify that the tensile strength of epoxy asphalt mastic with a 6 mm length and 2% content increased the most. Compared with the nondoped glass fiber, it increased by 69.2%. Under the influence of the internal composition of the asphalt mixture, the optimal ratio scheme is different from that of epoxy asphalt mastic. A microscopic analysis showed that uniformly dispersed fiberglass in the epoxy asphalt mixture forms a spatial network structure, leading to reinforcement and the restraint of microcrack expansion. The addition of fiberglass with a length of 9 mm and at a concentration of 5% to the epoxy asphalt mixture resulted in the maximum road performance. The Marshall stability increased by 43.5%, and the flexural and tensile strength increased by 33.7%. The fiberglass length is the most important factor limiting the strength and toughening effects of epoxy asphalt mixtures.

Influencia de la adición de fibra de vidrio AR sobre la resistencia a la compresión del concreto f’c 210 kg/cm2. Una revisión sistemática: 2020 – 2024

“…Sin embargo, la efectividad de estas fibras varía según el contexto de aplicación dentro de la mezcla asfáltica, siendo las de 9 mm de longitud y una concentración del 5% las que presentan mejor rendimiento. Este descubrimiento subraya la importancia de calibrar el tamaño de las fibras para asegurar la mejora deseada en la resistencia y el efecto de endurecimiento de los compuestos (Wei et al, 2022).…”

A Study on the Mechanical Properties of Glass-Fiber-Reinforced Defective Gypsum Boards

“…A large number of studies conducted by scholars have confirmed that the addition of glass fiber can provide concrete materials with better crack resistance [14][15][16][17], impermeability [18,19], and durability [20][21][22], as well as improving compressive strength [23,24] and sustainability [15,[25][26][27]. Ramadan investigated the mechanical properties, thermal stability, and radiation mitigation capabilities of composites containing glass waste [28][29][30][31][32][33][34][35][36][37].…”

Mechanical properties of cellulose-fibre reinforced bituminous mix under various loading rates

“…Moreover, the observed outcome showed increased binder proportional to the increase in fibre dosage. However, excessive fibre dosage of more than 0.3% would give a replacement effect to the tougher aggregate, leading to decreased toughness and strength [4][5][6][7][8][9][10][11]. Another example is synthetic polymer fibre, which comes in various products such as polyethylene (PE), polyethylene terephthalate (PET), and aramid.…”