Experimental Study on the Mechanical Properties and Influencing Factors of Glass Fiber-Reinforced Permeable Concrete

Abstract

In order to improve the mechanical properties and deformation characteristics of permeable concrete, glass fiber was added to this type of concrete. Based on an unconfined compressive strength test, non-contact full-field strain measurement system, and scanning electron microscopy test, the effects of aggregate particle composition, shaking time, fly ash content, fiber length, and fiber content on the strength and permeability of permeable concrete were studied. The results show that the strength and water permeability of permeable concrete are negatively correlated with an increase in shaking time. When the aggregate particle size is 5–10 mm, the permeable concrete has both good strength and permeability. Proper incorporation of fly ash improves the compactness inside the structure. The influence of different lengths of glass fiber on the strength of permeable concrete first increases and then decreases, and the permeable property decreases. With the same fiber length, the strength increases first and then decreases with an increase in the content, while the porosity and water permeability coefficient decrease. Under the test conditions, when the length of glass fiber is 6 mm, and the dosage is 2 kg/m3, the strength performance of permeable concrete is the best, and the permeability effect is good at the same time.

Influence of Mineral Admixtures on the Performance of Pervious Concrete and Microscopic Research

“…According to Figure 10c, there was a large amount of fibrous hydrated calcium silicate, which has the property of rapidly dispersing and forming a gel in water, on the surface of TS-3. This will directly grow on the surface of fly ash particles, forming a structure termed "microfiber reinforcement" [29]. The network structure can enhance the mechanical properties and crack resistance of fly ash concrete.…”

Development of New Hybrid Composites for High-Temperature Applications

“…In the late 1990s, glass-reinforced aluminum laminates (GLAREs) [11][12][13] were used in the aerospace industry due to their excellent properties. According to the cited literature study, glass fiber produces good results in mechanical properties [14,15]. Glass fibers are used as a reinforcing agent for many polymeric products to form a very strong fiber-reinforced polymer (FRP) composite material [16].…”