A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multi-layer slow-release additive for negative-temperature rush repair concrete, and preparation and use methods of multi-layer slow-release additive
The invention relates to the technical field of building materials, in particular to a multi-layer slow-release additive for negative-temperature rush-repair concrete and a preparation and use method thereof. The multi-layer slow-release additive sequentially comprises a hydration regulation and control layer, a condensation regulation and control layer, a pore regulation and control layer and a temperature regulation and control layer from outside to inside; the mass ratio of the hydration regulation and control layer to the condensation regulation and control layer to the pore regulation and control layer to the temperature regulation and control layer is (1-2): (1-2): (1-2): 5; the multi-layer slow-release additive realizes targeted regulation and control on the mixing, curing and service processes of the negative-temperature rush-repair concrete through a differential packaging technology; the hydration regulation and control layer is released after being dissolved in hot water; after the water-soluble film is swelled, the condensation regulation and control layer is slowly released; the isolation layer is dissolved in an alkaline environment to release the pore regulation and control layer; and the temperature regulation and control layer is a cement layer for permanently packaging a phase change material. The multi-layer slow-release additive is simple in preparation process and convenient to operate when being used for repairing and reinforcing, and the constructability and durability of negative-temperature repairing concrete can be improved.
本发明涉及建筑材料技术领域，尤其涉及负温抢修混凝土用多层缓释型添加剂、制备及使用方法。所述多层缓释型添加剂由外向内依次为水化调控层、凝结调控层、孔隙调控层及温度调控层；所述水化调控层、所述凝结调控层、所述孔隙调控层及所述温度调控层的质量比为1~2：1~2：1~2：5；多层缓释型添加剂通过差异化封装技术实现对负温抢修混凝土拌和、固化、服役过程的靶向调控：水化调控层在热水溶解后释放；水溶膜溶胀后、凝结调控层缓释；隔离层在碱性环境溶解致孔隙调控层释放；温度调控层为水泥层永久封装相变材料。多层缓释型添加剂制备工艺简单，用于抢修加固操作便捷，可提升负温抢修混凝土的可施工性和耐久性。
Multi-layer slow-release additive for negative-temperature rush repair concrete, and preparation and use methods of multi-layer slow-release additive
The invention relates to the technical field of building materials, in particular to a multi-layer slow-release additive for negative-temperature rush-repair concrete and a preparation and use method thereof. The multi-layer slow-release additive sequentially comprises a hydration regulation and control layer, a condensation regulation and control layer, a pore regulation and control layer and a temperature regulation and control layer from outside to inside; the mass ratio of the hydration regulation and control layer to the condensation regulation and control layer to the pore regulation and control layer to the temperature regulation and control layer is (1-2): (1-2): (1-2): 5; the multi-layer slow-release additive realizes targeted regulation and control on the mixing, curing and service processes of the negative-temperature rush-repair concrete through a differential packaging technology; the hydration regulation and control layer is released after being dissolved in hot water; after the water-soluble film is swelled, the condensation regulation and control layer is slowly released; the isolation layer is dissolved in an alkaline environment to release the pore regulation and control layer; and the temperature regulation and control layer is a cement layer for permanently packaging a phase change material. The multi-layer slow-release additive is simple in preparation process and convenient to operate when being used for repairing and reinforcing, and the constructability and durability of negative-temperature repairing concrete can be improved.
本发明涉及建筑材料技术领域，尤其涉及负温抢修混凝土用多层缓释型添加剂、制备及使用方法。所述多层缓释型添加剂由外向内依次为水化调控层、凝结调控层、孔隙调控层及温度调控层；所述水化调控层、所述凝结调控层、所述孔隙调控层及所述温度调控层的质量比为1~2：1~2：1~2：5；多层缓释型添加剂通过差异化封装技术实现对负温抢修混凝土拌和、固化、服役过程的靶向调控：水化调控层在热水溶解后释放；水溶膜溶胀后、凝结调控层缓释；隔离层在碱性环境溶解致孔隙调控层释放；温度调控层为水泥层永久封装相变材料。多层缓释型添加剂制备工艺简单，用于抢修加固操作便捷，可提升负温抢修混凝土的可施工性和耐久性。
Multi-layer slow-release additive for negative-temperature rush repair concrete, and preparation and use methods of multi-layer slow-release additive
负温抢修混凝土用多层缓释型添加剂、制备及使用方法
CHEN LIFENG (author) / LI SIQI (author) / LI KUAN (author) / PAN YOUQIANG (author) / YIN XIAOTIAN (author)
2023-11-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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