High-strength polyurethane modified silicate grouting reinforcement material as well as preparation method and application thereof
A polyurethane modification and grouting reinforcement technology, which is applied in the field of grouting reinforcement materials, can solve the problems of being unable to replace chemical grouting reinforcement materials, low durability of water glass grout, and unstable material properties, etc., to achieve convenient response speed, Good environmental protection performance, cost reduction and energy consumption effect
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[0028] Example 1
[0029] A high-strength polyurethane-modified silicate grouting reinforcement material of the present embodiment is prepared according to the following steps:
[0030] 1. Preparation of component A: add sodium silicate solution to the reaction kettle, add catalyst during stirring, and stir for 30 minutes to obtain component A of the grouting reinforcement material;
[0031] 2. Preparation of component B: add polymerized MDI into the reaction kettle, then add polyether polyol and accelerant in the stirring process, and after mixing evenly, component B of reinforcement material is obtained.
Example Embodiment
[0032] Example 2
[0033] A high-strength polyurethane-modified silicate grouting reinforcement material of the present embodiment is prepared according to the following steps:
[0034] 1. Preparation of component A: add sodium silicate solution to the reaction kettle, add catalyst during stirring, and stir for 60 minutes to obtain component A of the grouting reinforcement material;
[0035] 2. Preparation of component B: add polymerized MDI into the reaction kettle, then add polyether polyol and accelerant in the stirring process, and after mixing evenly, component B of reinforcement material is obtained.
Example Embodiment
[0036] Example 3
[0037] A high-strength polyurethane-modified silicate grouting reinforcement material of the present embodiment is prepared according to the following steps:
[0038] 1. Preparation of component A: add sodium silicate solution to the reaction kettle, add catalyst during stirring, and stir for 45 minutes to obtain component A of the grouting reinforcement material;
[0039] 2. Preparation of component B: add polymerized MDI into the reaction kettle, then add polyether polyol and accelerant in the stirring process, and after mixing evenly, component B of reinforcement material is obtained.
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