Low-temperature-resistant polyurethane elastic concrete and preparation method thereof

• Main Authors: CHANG GUANGLI, NIU BOYU, MENG YANYU, LENG BING, YANG XUJIAO
• Format: Patent
• Language: Chinese; English
• Published: 15.09.2023
• 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 provides low-temperature-resistant polyurethane elastic concrete and a preparation method thereof, and relates to the technical field of road materials. The low-temperature-resistant polyurethane elastic concrete is prepared from the following raw materials in parts by weight: 10 to 30 parts of polyurethane, 300 to 450 parts of cement, 80 to 120 parts of silica fume, 20 to 40 parts of reinforced fibers, 900 to 1200 parts of aggregate, 0.5 to 3.5 parts of a water reducing agent, 5 to 15 parts of rubber particles and 150 to 300 parts of water. The low-temperature-resistant polyurethane elastic concrete prepared by matching various raw materials has good low-temperature crack resistance and fatigue resistance, can effectively prolong the service life of a pavement as a pavement material, can be directly spread at normal temperature, and is green, environment-friendly and safe. 本申请提出了一种耐低温的聚氨酯弹性混凝土及其制备方法，涉及道路材料技术领域。一种耐低温的聚氨酯弹性混凝土，包括如下重量份的原料：聚氨酯10-30份、水泥300-450份、硅灰80-120份、增强纤维20-40份、骨料900-1200份、减水剂0.