Study on the rationality of the construction scheme for cement-stabilized macadam base course

To evaluate the effectiveness of construction schemes for cement-stabilized macadam bases, this study focuses on the impact of construction vehicle loads on the base's mechanical response. First, the physical properties of raw materials and the early-age mechanical parameters of the mixture were obtained through laboratory tests. Subsequently, an orthogonal experimental design was adopted, and KENPAVE software was used to calculate the maximum tensile stress at the bottom of the base under various construction loads. Range analysis was conducted to clarify the degree of influence of factors such as pavement structure thickness, material modulus, and construction scheme on tensile stress. The study ultimately identified a structural combination with optimal bearing capacity and revealed stress variation patterns under different loads. The results indicate that a continuous construction scheme is superior to an intermittent scheme in controlling early-age tensile stress in the base, which is more beneficial for ensuring long-term pavement performance.