| 摘要 |
PURPOSE: A concrete repair material is provided to secure the equalization and simplicity of construction, and to ensure the early traffic opening by mixing a first pavement material and a second pavement material, which are manufactured respectively in the factory, in a construction site. CONSTITUTION: A concrete repair material comprises a first pavement material and a second pavement material. The first pavement material is composed of 26kg of the Portland cement, 26kg of alumina cement, 38kg of silica, 3kg of sodium carbonate, 2kg of lignin sulfonic acid sodium salt, and 5kg of sodium silicate. The second pavement material is composed of 10kg of polyvinyl alcohol, 88kg of acrylic resin, 1kg of surfactant, 1kg of dispersing agent, and 1000kg of water. The first pavement material and the second pavement material are mixed at the weight ratio of 10:1. A repairing method of concrete road comprises the following steps. The first and second pavement materials are manufactured respectively in the factory. The destroyed part of the concrete pavement is chipped and the foreign substance is removed. The first and second pavement materials are mixed at the weight ratio of 10:1 in the construction site. The mixture is filled in the destroyed part. |
