High-strength lightweight mixed material for fabricated hollow mould box and preparation method of high-strength lightweight mixed material

The invention relates to the technical field of construction materials, in particular to a high-strength lightweight mixed material for a fabricated hollow mould box. The high-strength lightweight mixed material comprises a hollow glass bead center layer, a polymer mortar layer and a modified rigid polyurethane foam layer. The modified rigid polyurethane foam layer is positioned outside the polymer mortar layer which is positioned outside the hollow glass bead center layer, and the particle size of hollow glass beads is 10-250micron while the density is 0.125-0.6g/cm . The high-strength lightweight mixed material is novel in structure, weight of the fabricated hollow mould box made from the mixed material is 300-400kg/m , and plasticity, flame retardation, specific strength, soundproofperformance, heat insulation performance, humidity resistance and structural stability are greatly improved. 本发明涉及建筑材料技术领域，具体地涉及种装配式空心模盒用高强轻质混合材料，包括空心玻璃微珠中心层、聚合物砂浆层和改性聚氨酯硬泡层，聚合物砂浆层位于空心玻璃微珠中心层的外部，改性聚氨酯硬泡层位于聚合物砂浆层的外部，空心玻璃微珠的粒径为10～