Grouting construction

Basic processing

1. Clean the surface of the foundation without any debris such as crushed stones, floating slurry, floating ash, oil stains, and release agents.

2. 24 hours before grouting, the foundation surface should be fully wetted, and 1 hour before grouting, any accumulated water should be removed.
CGM self leveling grouting material wholesale Puyang H60 grouting material CGM grouting material

The waterproof area of underground engineering is about 50000 square meters, and the waterproof area of ground engineering is about 20000 square meters. The project investment is 700 million yuan (excluding the cost of high-speed railways), making it the current underground transportation hub project in China. The underground engineering consists of 1-4 layers underground, with an excavation depth of 31m. The enclosure structure adopts underground continuous walls, drilled piles, sprayed concrete, etc. The waterproofing of the underground engineering adopts a combination of fully enclosed waterproof layers and self waterproofing of the main structure. Water Design 1.1 Waterproof Design Principles, Waterproof Grades, and Standards Underground structure waterproofing follows the principles of prioritizing prevention, combining rigidity and flexibility, multiple waterproofing methods, adapting to local conditions, and comprehensive management.

: Support mold

1. Set up templates according to the grouting construction drawing. The joints between templates and foundations, as well as between templates, shall be sealed with cement slurry, tape, etc. to achieve the degree of overall template waterproofing.

2. The horizontal distance between the template and the equipment base should be controlled at around 100mm to facilitate grouting construction.

3. The top elevation of the template should be 50mm higher than the surface of the equipment base.

4. If there is grout leakage during grouting, it should be dealt with in a timely manner.

 
Adding water during stone water grinding can accelerate the dissipation of heat, with slightly lower requirements for the composition of the grinding disc. However, when dry grinding, no water is added, resulting in slow heat dissipation. Therefore, the resin used for dry grinding discs must be high-quality and heat-resistant. Simply put, due to its composition, dry grinding discs can be water ground, while ordinary water grinding discs cannot be dry ground for a long time. Grinding discs made of high-quality resin can be dry ground or water ground. Water grinding causes less damage to stone, and the high temperature generated during stone grinding can cause certain damage to the structural crystals of the stone. Stone is prone to a series of problems such as loss of luster, fragmentation, and pulverization after being burned at high temperatures. The reason is the composition of stone, and the main component of marble is carbon calcium. Carbon calcium is converted into calcium oxide through high-temperature calcination, which is commonly known as the firing process of quicklime.

Step 3: Preparation of grouting material

1. The general reinforced type is mixed with water at a standard of 12-13%, while the pea gravel reinforced type is mixed with water at a standard of 9-10%.

2. It is recommended to use mechanical stirring method, and the stirring time is generally 1-2 minutes. When using manual mixing, 2/3 of the water should be added first and mixed for 2 minutes, then the remaining water should be added and mixed evenly

Moulded polystyrene board interfacial agent is a kind of uniform liquid material made of high content fly ash, polymer lotion and various additives as the main raw materials. At the construction site, cement and sand are mixed in proportion to form interface mortar, which is coated on the surface of polystyrene board to improve the bonding strength between polystyrene board, bonding layer and plastering layer. The interface agent for molded polystyrene board has the characteristics of simple operation, convenient construction, strong bonding force, not easy to fall off, waste utilization, resource regeneration, and compliance with environmental protection requirements. Construction method of interface agent for molded polystyrene board: Base treatment: The molded polystyrene board should be clean, free of oil stains, and floating dust. Preparation method: Interface agent: medium sand: ordinary silicon 42.5 cement=1:1:1 (weight ratio) Mixing sequence: First add medium sand to the interface agent, stir evenly, then add cement, and stir evenly again before use.

3. The amount of mixing each time should be determined based on the amount used to ensure that the material is used up within 30 minutes.

4. During on-site use, it is strictly prohibited to add any admixtures or external additives to the grouting material.

Step 4: Grouting Construction Method

1. Long equipment or track foundations should be constructed in sections.

2. During secondary grouting, grouting should be carried out from multiple points on one side or adjacent sides until it overflows from the other side, in order to facilitate exhaust during the grouting process. Grouting shall not be carried out simultaneously from all four sides

This function is suitable for pedestrian streets, squares, and courtyards, especially around flowers, grass, and trees, to allow rainwater to seep into the ground and communicate with the underground water, ensuring that plants have sufficient moisture. The crushed stone material (. 5-2 cm) from volcanic rocks is widely used in foundation construction for roads, buildings, dams, and other occasions. The product has unique characteristics of high strength, high wear resistance, and high hardness compared to other stone materials, especially suitable for roadbed casting of highways and airport runways. It can greatly improve the load-bearing, compressive, wear resistance, fatigue resistance, and other performance indicators of road foundations, which is conducive to ensuring the century old project quality. It is the stone material used by various construction project units and architectural design departments when determining project materials.

3. After grouting begins, it must be carried out continuously without interruption. And shorten the grouting time as much as possible.

4. Vibration is strictly prohibited during the grouting process. If necessary, a grouting booster can be used to push the grouting material along the bottom of the grouting layer. It is strictly prohibited to push it from the middle or upper part of the grouting layer to ensure its uniformity.

5. After the equipment foundation grouting is completed, a 45 degree oblique angle should be cut outward along the edge of the equipment 3-6 hours after grouting to prevent cracks from forming at the free end. If edge cutting is not possible, the surface of the grouting layer should be smoothed with a trowel 3-6 hours after grouting.

6. The thickness of each grouting material should not exceed 100mm.

If you are installing slate on a concrete floor, water resistance becomes particularly important because it can bring moisture into the room. What kind of slate flooring do you want, natural, glossy, or smooth? Choosing the appropriate polishing can result in a smooth but not smooth surface. Natural surfaces can also be achieved through polishing, but many people prefer slate flooring that looks shiny. After grouting (using latex slurry, as it can increase flexibility, reduce weathering, and have strong adhesion), let it air dry and then clean the floor after one week. You need to clean the floor several times to remove all residual mud and avoid the mud permanently remaining on the slate floor.

7. When the grouting volume of the equipment foundation is large, the mixing of pea gravel reinforced grouting material should be done by mechanical mixing to ensure grouting construction.

Step 5: Maintenance

1. Within 30 minutes after grouting is completed, a wet grass curtain or rock wool blanket should be immediately covered and kept moist.

2. During winter construction, maintenance measures should also comply with the relevant provisions of the current GB50204 standard.

3. After the grouting material reaches the demoulding time, equipment installation can be carried out. For specific time, please refer to the "Relationship Table between Demoulding and Curing Time and Environmental Temperature".

4. After the grouting of the equipment foundation is completed, if any parts need to be removed, they can be gently removed with a spatula or shovel tool 3-6 hours after the grouting is completed, before the grouting layer hardens.

5. The vibration of the running machine should not be transmitted to the equipment foundation. After the secondary grouting, the machine should be stopped for 24-36 hours to avoid damaging the uncured grouting layer.

Origin of marquard: Türkiye, beige, green background, with lines. The board surface has red spots distributed, resembling a horseshoe, hence it is also known as "horseshoe flower". Product sample/Noble and generous. Suitable for making floors, walls, and countertops. Rose beige origin: Türkiye has a light red background, regular twill patterns, and good materials. Suitable for making floors and walls. Good glossiness, suitable for large projects. The texture effect of cylindrical and square columns will be better, and it is suitable to match with light colored stone, especially white stone. Origin of Caiyunfei: Türkiye has a dark red background, good materials, and a wide range of uses. It is commonly used on walls and floors. Decorations used for indoor decoration, such as entrance halls, window sills, background walls, etc., have a particularly good effect.

Recommended dosage

Calculate the actual usage based on a reference dosage of 2.28-2.4 tons/cubic meter.

Packaging, storage and transportation

1. Packaging specifications: 50kg ± 1kg per bag, stored in a ventilated and dry place and protected from direct sunlight.

2. The shelf life is 3 months. If it exceeds the shelf life, it should be retested and qualified before use.

3. Does not contain components such as benzene derivatives, halogenated hydrocarbons, heavy metals, etc., non-toxic, odorless, pollution-free, non flammable and non explosive, and can be transported as general cargo