A kind of anti-corrosion and waterproof cement-based grouting material and preparation method thereof
A cement-based and grouting technology, applied in the field of building materials, can solve the problem of difficulty in guaranteeing the thickness of a dense protective layer, and achieve improved compact performance, waterproof and impermeable performance, improved waterproof performance, good anti-corrosion performance and reinforcement performance. Effect
Active Publication Date: 2022-03-08
建研建材有限公司
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Problems solved by technology
However, because cement-based grouting materials are mostly in contact with metal embedded parts or steel bars during application, they usually play the role of bonding, reinforcement and protection. Due to the limited construction operations, the compactness of cement-based grouting materials and metal embedded parts such as steel bars The thickness of the protective layer is difficult to guarantee
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[0039] The preparation method of the anti-corrosion and waterproof cement-based grouting material of Examples 1-5 comprises the following steps:
[0040] S1. Add sand, cement, viscosity reducer, metakaolin, ultrafine quartz powder, anti-corrosion curing agent, synthetic fiber, and stir for 1-2 minutes;
[0041]S2. Add water-soluble defoamer and water reducer to the product obtained in step S1, stir for 3 to 5 minutes, and mix thoroughly to form a cement-based grout mixture. By controlling the water reducer and water consumption, Keep the fluidity within the range of 320±30mm;
[0042] S3. Add the modified nano-silica dispersion and the shrinkage reducing agent to the cement-based grout mixture obtained in step S2, and stir for 2 to 3 minutes to obtain the mixture;
[0043] S4. Molding the mixture obtained in step S3, and curing it at room temperature for 1 to 7 days in an environment with a relative humidity ≥ 95%;
[0044] S5. After the finished product is removed from the ...
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Abstract
The invention belongs to the technical field of building materials, and in particular relates to an anti-corrosion and waterproof cement-based grouting material and a preparation method thereof. The technical points are as follows: Calculated according to parts by weight, it includes the following components: 750-1000 parts of cement, 80-200 parts of viscosity reducer, 5-30 parts of modified nano-silica dispersion, 50-150 parts of metakaolin, super 50~100 parts of fine quartz powder, 20~100 parts of anticorrosion curing agent, 20~50 parts of water reducing agent, 1~3 parts of defoamer, 10~30 parts of shrinkage reducing agent, 900~1100 parts of sand, 160~240 parts of water And synthetic fiber 2~4 parts. The invention adopts nano-silicon oxide dispersion liquid, metakaolin, shrinkage reducing agent and anti-corrosion curing agent, and can obtain cement-based grouting material with excellent anti-corrosion performance and good waterproof effect under conventional maintenance conditions, and has good economic benefits and practical value.
Description
technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an anti-corrosion and waterproof cement-based grouting material and a preparation method thereof. Background technique [0002] Traditional cement-based grouting materials use cement as the cementitious material, mixed with appropriate amount of fine aggregate and various additives. After adding water and stirring, it has the characteristics of high fluidity, easy construction, early strength, and high strength. After a certain period of maintenance, it has Hardened slurry with a certain strength is widely used in secondary grouting and bolt anchoring of equipment foundations, steel structure foundations, etc., as well as reinforcement of concrete beams, columns, slabs, walls, and refilling, filling, and repairing of concrete cavities. Compared with epoxy organic grouting materials, cement-based grouting materials have higher mechanical properties and excel...
Claims
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IPC IPC(8): C04B28/04C04B111/20C04B111/27C04B111/70C04B111/94
CPCC04B28/04C04B2111/00293C04B2111/20C04B2111/27C04B2111/70C04B2111/94C04B14/062C04B14/106C04B14/06C04B16/0641C04B2103/0068C04B2103/60C04B2103/302C04B2103/50
Inventor 王晶宋普涛夏京亮周永祥高超贺阳王祖琦
Owner 建研建材有限公司