High-speed rail ballastless track self-compacting concrete based on cementing material and preparation method

• Main Authors: LIU YAN, ZHANG JIE, XU BO, LI MEIJI, LI YI
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2020
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses high-speed rail ballastless track self-compacting concrete based on a cementing material and a preparation method, and belongs to the technical field of self-compacting concrete. The self-compacting concrete for the ballastless track of the high-speed rail is prepared from cement, a cementing material, fine aggregate, coarse aggregate, fly ash, an additive and a proper amount of water. According to the formula of the self-compacting concrete, the cementing material prepared by taking the floating beads and the quartz sand as raw materials through high-temperature melting, water quenching and grinding is added, and the cementing material has relatively large specific surface area and activity, so the viscosity between the cementing material and other mixtures is increased, the interface structure is improved, and the compactness is increased; in other words, the friction force between the cementing material and the mixture is increased equivalently, so the lightweight aggregate can be e