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A platform for research: civil engineering, architecture and urbanism
Non-cured rubber asphalt-polyurethane waterproof coating composite construction method
The invention discloses a non-cured rubber asphalt-polyurethane waterproof coating composite construction method, and belongs to the technical field of waterproofing. The construction method comprises the following steps: firstly, coating a conventional commercially available non-cured rubber asphalt waterproof coating on a concrete layer in a hot melting manner at an interval of 1 minute, and then blade-coating a polyurethane waterproof coating on the surface of the non-cured rubber asphalt waterproof coating by 1.0-1.5 mm once. In the invention, the polyurethane waterproof coating is de-blocked on a high-temperature surface generated when the non-cured rubber asphalt is melted, releases a high-activity NCO group, and quickly generates chemical reaction with phenolic hydroxyl groups in the non-cured rubber asphalt in the presence of a high-efficiency catalyst to form a composite waterproof coating which is combined through the chemical reaction; the problems that the bonding force between non-cured rubber asphalt-polyurethane waterproof coating composite waterproof layers is poor, and the bonding force is prone to attenuation are solved.
本发明公开一种非固化橡胶沥青‑聚氨酯防水涂料复合施工方法，属于防水技术领域。该施工方法是先将常规市售非固化橡胶沥青防水涂料热熔施涂在混凝土层，间隔1分钟以内，然后在非固化橡胶沥青防水涂料表面刮涂聚氨酯防水涂料，一次刮涂聚氨酯涂层1.0～1.5mm即可。本发明中，聚氨酯防水涂料在非固化橡胶沥青融化时产生的高温表面解封端，释放出高活性NCO基团，并在高效催化剂存在条件下快速与非固化橡胶沥青中的酚羟基产生化学反应，形成了通过化学反应而结合的复合防水涂层，解决了非固化橡胶沥青‑聚氨酯防水涂料复合防水层间粘接力差及粘接力易衰减的问题。
Non-cured rubber asphalt-polyurethane waterproof coating composite construction method
The invention discloses a non-cured rubber asphalt-polyurethane waterproof coating composite construction method, and belongs to the technical field of waterproofing. The construction method comprises the following steps: firstly, coating a conventional commercially available non-cured rubber asphalt waterproof coating on a concrete layer in a hot melting manner at an interval of 1 minute, and then blade-coating a polyurethane waterproof coating on the surface of the non-cured rubber asphalt waterproof coating by 1.0-1.5 mm once. In the invention, the polyurethane waterproof coating is de-blocked on a high-temperature surface generated when the non-cured rubber asphalt is melted, releases a high-activity NCO group, and quickly generates chemical reaction with phenolic hydroxyl groups in the non-cured rubber asphalt in the presence of a high-efficiency catalyst to form a composite waterproof coating which is combined through the chemical reaction; the problems that the bonding force between non-cured rubber asphalt-polyurethane waterproof coating composite waterproof layers is poor, and the bonding force is prone to attenuation are solved.
本发明公开一种非固化橡胶沥青‑聚氨酯防水涂料复合施工方法，属于防水技术领域。该施工方法是先将常规市售非固化橡胶沥青防水涂料热熔施涂在混凝土层，间隔1分钟以内，然后在非固化橡胶沥青防水涂料表面刮涂聚氨酯防水涂料，一次刮涂聚氨酯涂层1.0～1.5mm即可。本发明中，聚氨酯防水涂料在非固化橡胶沥青融化时产生的高温表面解封端，释放出高活性NCO基团，并在高效催化剂存在条件下快速与非固化橡胶沥青中的酚羟基产生化学反应，形成了通过化学反应而结合的复合防水涂层，解决了非固化橡胶沥青‑聚氨酯防水涂料复合防水层间粘接力差及粘接力易衰减的问题。
Non-cured rubber asphalt-polyurethane waterproof coating composite construction method
一种非固化橡胶沥青-聚氨酯防水涂料复合施工方法
XUE QIANG (author) / HOU WENBO (author) / LI CHAO (author) / ZHU YUEHUA (author)
2024-12-20
Patent
Electronic Resource
Chinese
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