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.

Many erosive environments, such as acidic or various salts, can cause damage to structures like roads, tunnels, and buildings. Various tests were conducted to investigate how the strength of cemented soil is affected by different soaking periods, types of saline solutions, and fibers. Samples including and excluding basalt fibers were tested in water, acid, and salt solutions for 1, 8, 19, 39, and 54 days. The results show that the strength of cemented soil soaked in clear water gradually increases with the increase of maintenance days, which is the development law of strength of cemented soil. As the soaking time increases, the unconfined compressive strength of soil samples soaked in acidic and salt environments gradually decreases. The addition of fiber to cemented soil slightly increases its strength compared to soil without fiber in the same solution concentration. This suggests that fiber has a distinct role in protecting cemented soil from erosion caused by erosive solutions.