Grouting is a high-performance, non-shrinkage concrete repair material, which is used in equipment foundation grouting, anchor bolt anchoring, structural reinforcement and repair, and other fields. Due to its excellent properties, grout plays an increasingly important role in construction projects. This article will introduce the key points of the construction of grouting material in detail, help readers better grasp its construction methods, and ensure the quality of the project.
1. Preparation before construction.
1.Determine the scope of construction: Before construction, it is necessary to clarify the construction scope of the grouting material to ensure that the construction area is free of debris and no oil stains, so as to facilitate the construction of the grouting material.
2.Check the foundation: Inspect the foundation of the equipment to ensure that the foundation is smooth and solid, and there are no cracks, voids and other defects. If there is a defect, it needs to be dealt with in advance.
3.Prepare tools: Prepare the tools needed for construction, such as agitators, measuring tools, scrapers, trowels, etc.
Second, the construction steps.
1.Stirring: According to the mix ratio provided by the grout manufacturer, the grout and water are fully stirred. If other additives need to be added, they should be added during the stirring process. Attention should be paid to controlling the stirring time and stirring speed to ensure that the grout is stirred evenly.
2.Laying: Lay the stirred grout on the construction area and lay it evenly with a scraper or trowel. During the laying process, attention should be paid to controlling the thickness and slope of the grouting material to ensure that the design requirements are met.
3.Vibrating: After the grout is laid, use a vibrator to vibrate the grout. The purpose of vibrating is to remove the air in the grout and increase the compactness of the grout. Attention should be paid to controlling the vibration time and vibration strength during vibrating to avoid damage to the foundation.
4.Leveling: After the vibration is completed, use a scraper or trowel to level the grout. The purpose of leveling is to make the surface of the grouting material flat and smooth, and meet the design requirements. Attention should be paid to controlling the flatness and flatness error of the surface during the leveling process.
5.Curing: After the construction of the grouting material is completed, it should be cured. The purpose of curing is to harden the grouting material sufficiently to reach the design strength. During the curing period, attention should be paid to keeping the surface of the grout moist and avoiding exposure to the sun and wind.
3. Precautions for construction.
1.Construction temperature: The construction temperature of the grouting material should be above 5, and the construction under low or high temperature conditions should be avoided. If it is necessary to construct under low temperature or high temperature conditions, corresponding measures should be taken, such as using insulation materials, adjusting the mix ratio, etc.
2.Construction time: The construction time of the grouting material should be controlled within the operable time provided by the manufacturer to avoid the grouting material hardening too early or too late.
3.Construction quality: During the construction process, attention should be paid to controlling the construction quality to ensure that the grouting material is laid evenly and densely, and the surface is smooth and smooth. If construction quality problems are found, they should be dealt with in a timely manner.
4.Safe construction: Attention should be paid to safe construction during the construction process to avoid accidents. If you use a vibrator, you should wear protective equipment to avoid accidents such as electric shock.
In short, the construction points of grout include pre-construction preparation, material preparation, construction steps and construction precautions. In the construction process, the construction should be carried out in strict accordance with the key points to ensure the quality of the grouting material and the quality of the project. At the same time, the construction personnel should have professional knowledge and construction experience to ensure safety and efficiency in the construction process.
High-strength non-shrinkage grout