Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for improving bonding strength of concrete interface by spraying silica mortar
The invention discloses a method for improving the bonding strength of a concrete interface by spraying silica mortar. The method comprises the following steps: (1) chiseling a defect part on the surface of the old concrete, and cleaning the surface; (2) spraying a layer of silicon mortar on the surface of the treated concrete; and (3) the surface of the old concrete sprayed with the silicon mortar is covered with bonding mortar, and repairing of the concrete is completed. The method is suitable for repairing and reinforcing new and old concrete surfaces, and the silicon mortar sprayed on the old concrete surface enables a bonding interface to be more compact through a secondary hydration reaction, so that the bonding strength of the interface is improved. The silica fume is used in the form of dispersed slurry, so that the dust pollution problem in the transportation and use process of the silica fume can be reduced, and the problem that the dense silica fume is not easy to disperse is avoided. Meanwhile, the use amount of the silica fume is smaller, the method has more economic benefits, and the method is simple, easy to implement, green and environmentally friendly.
本发明公开了一种喷涂硅灰浆提高混凝土界面粘接强度的方法；该方法通过：（1）对旧混凝土表面缺陷部分进行凿毛、表面清理处理；（2）对处理后的混凝土表面喷涂一层硅灰浆；（3）对喷洒硅灰浆的旧混凝土表面覆盖上粘接砂浆，完成混凝土的修补。本发明适用于新旧混凝土表面的修补和加固，喷洒在旧混凝土表面的硅灰浆，通过二次水化反应使粘接界面更加致密，从而增加界面粘接强度。硅灰以分散的浆体使用，可以减少硅灰的运输使用过程中的粉尘污染问题，规避加密硅灰不易分散的问题。同时，此发明对硅灰的使用量更少，更具有经济效益，方法简单易行，绿色环保。
Method for improving bonding strength of concrete interface by spraying silica mortar
The invention discloses a method for improving the bonding strength of a concrete interface by spraying silica mortar. The method comprises the following steps: (1) chiseling a defect part on the surface of the old concrete, and cleaning the surface; (2) spraying a layer of silicon mortar on the surface of the treated concrete; and (3) the surface of the old concrete sprayed with the silicon mortar is covered with bonding mortar, and repairing of the concrete is completed. The method is suitable for repairing and reinforcing new and old concrete surfaces, and the silicon mortar sprayed on the old concrete surface enables a bonding interface to be more compact through a secondary hydration reaction, so that the bonding strength of the interface is improved. The silica fume is used in the form of dispersed slurry, so that the dust pollution problem in the transportation and use process of the silica fume can be reduced, and the problem that the dense silica fume is not easy to disperse is avoided. Meanwhile, the use amount of the silica fume is smaller, the method has more economic benefits, and the method is simple, easy to implement, green and environmentally friendly.
本发明公开了一种喷涂硅灰浆提高混凝土界面粘接强度的方法；该方法通过：（1）对旧混凝土表面缺陷部分进行凿毛、表面清理处理；（2）对处理后的混凝土表面喷涂一层硅灰浆；（3）对喷洒硅灰浆的旧混凝土表面覆盖上粘接砂浆，完成混凝土的修补。本发明适用于新旧混凝土表面的修补和加固，喷洒在旧混凝土表面的硅灰浆，通过二次水化反应使粘接界面更加致密，从而增加界面粘接强度。硅灰以分散的浆体使用，可以减少硅灰的运输使用过程中的粉尘污染问题，规避加密硅灰不易分散的问题。同时，此发明对硅灰的使用量更少，更具有经济效益，方法简单易行，绿色环保。
Method for improving bonding strength of concrete interface by spraying silica mortar
一种喷涂硅灰浆提高混凝土界面粘接强度的方法
YANG FENGYUAN (Autor:in) / CHEN HONGYU (Autor:in) / WANG AIWEN (Autor:in) / CHEN JIAKUN (Autor:in)
01.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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