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.
How many tons of high-strength non shrinkage grouting material C60 per cubic meter? Xuanzhou RG grouting material

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: 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.

 
For the water vapor wet flow density in JG149-23 standard, it is determined according to the water method in GB/T17146-1997 "Test Method for Water Vapor Transmission Performance of Building Materials", and the water vapor flow is generated by the difference between the relative humidity of water at 1% and the relative humidity in the laboratory. However, the testing method of ENISO7783-2 is different from that of GB/T17146-1997 in 1999 "Classification of External Coatings and Coating Systems for Paints and Varnishes on Plaster Layers and Concrete Bases -2. Determination and Classification of Water Vapor Transmittance". It is generated by the difference between the relative humidity of ammonium at 23 ℃, 93 ‰, and the relative humidity in the laboratory, 5 ‰, resulting in a water vapor flow.

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

Natural granite and marble building board products, with their unique external nobility and natural beauty, occupy a vast market in the field of building materials. The application of stone has expanded from the construction industry to tourism, environmental protection, ecology, chemical industry and other fields. But looking at the entire industry, there are still many problems and shortcomings, and there is still a big gap compared to advanced stone industries abroad. According to the national mandatory standards for material selection, stone radioactivity is divided into three categories: A, B, and C. Consumers can choose the appropriate stone variety according to their own needs when selecting. If it is ordinary household decoration for ordinary people, stone varieties with Class A radioactivity should be selected. If it is used in engineering, appropriate selection should be made according to their radioactivity classification.

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

There are generally two types of cultural stones on the market: natural and artificial. There are two main types of natural cultural stones in terms of material: sedimentary sandstone and hard slate. The artificial cultural stone is also made of inorganic materials based on the essence of the natural cultural stone. It imitates every trace of the natural cultural stone very lifelike and natural. A rough introduction to cultural stones seen in the stone market is as follows: slate - natural slate has a special layered texture, with clear and picturesque patterns, delicate and dense texture, and extraordinary aura. The ever-changing nature of the stone expresses a feeling of returning to simplicity.

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.

Quartz stone, due to its diverse colors and natural stone texture and luster, has a smooth surface without any pores or small cracks, making it a national indoor green and environmentally friendly decorative stone. Due to the high production costs of quartz stone manufacturers, the price of quartz stone is too high, making it difficult for ordinary households to afford. Therefore, quartz stone was initially used in places with higher requirements, such as laboratory tables, cabinet countertops, and venue repairs. During the visit, the editor found that many households purchase countertops for over a thousand yuan, but the seam treatment is not in place, directly affecting the overall aesthetics of the countertop. What kind of seam is qualified? What the editor wants to say is at least not obvious. The production of marble background walls is carried out after the completion of the wooden work and the marble decoration. After the marble installation is completed, the painting construction is carried out. During installation, the walls are required to be dry and the construction environment should not have strong winds. The construction should be carried out according to the organizational plan and strictly controlled. Determine the horizontal and vertical lines of the stone based on the control lines of the stone. The stone opening groove should be set according to the standard spacing of the hanging bracket position, and the groove depth should be determined based on the length of the T-shaped plate. Careful attention must be paid during joint construction, especially when applying adhesive tape. The tape should not have any openings to prevent it from seeping onto the surface of the stone during gluing. After gluing, wait for the adhesive to dry quickly and clean the tape thoroughly.

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 Code for Construction and Acceptance of Reinforced Concrete Engineering (GB50204).

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.

To increase the bonding strength between the extruded board and the base layer, a layer of interface agent should be applied on both sides of the extruded board. Special adhesive for configuration: 1) Pour 5 parts (weight ratio) of dry mixed mortar into a clean plastic bucket, add 1 part of clean water, stir while adding water, and then use a handheld electric mixer to stir for 5 minutes until the mixture is evenly mixed and the viscosity is moderate. Let the prepared adhesive stand for 5 minutes and stir before use. The prepared adhesive should be used up within 1 hour. The configuration of the special adhesive only allows the addition of purified water and no other additives are allowed. Installation of extruded board 1) The standard board size is 12 * 6, with a diagonal error of less than 2. The extruded board is cut with an electric wire cutter or tool knife, and the allowable size deviation is 1.5. Mesh cloth flipping: Pre stick mesh cloth on extruded boards at door and window openings, deformation joints on both sides, etc., with a total width of about 2 and a flipping width of 8. The specific method is as follows: the cutting length of the mesh cloth is 18 plus the thickness of the board. Firstly, apply a special adhesive with a length of 8 and a width of 2 to the flipping area, then use an 8-long mesh cloth, and discard the remaining for later use. Apply the pre configured special adhesive to the back of the extruded board, with a compacted thickness of about 3. To ensure a strong bond, the bonding methods can be strip bonding and strip point bonding. Strip bonding method: Use a toothed trowel to evenly apply the special adhesive horizontally onto the extruded board, with a strip width of 1, thickness of 1, and a center distance of 5. Strip method: Use a trowel to apply a special adhesive with a width of 5 and a thickness of 1 around and in the middle of each extruded board, and then apply a mortar cake with a diameter of 1 and a thickness of 1 in the partition area of the extruded board. Quickly stick the extruded board coated with special adhesive onto the wall to prevent surface peeling and loss of bonding effect. Do not apply special adhesive on the side of the extruded board. After the extruded board is glued to the wall, it shall be flattened with a 2m guiding rule to ensure its flatness and firmness. The boards shall be squeezed tightly without joints. The gaps formed due to uneven cutting shall be plugged and polished with extruded Flat noodles. After sticking each board, the extruded special adhesive should be removed. The extruded board should be pasted horizontally from bottom to top in sections. Each row of boards should be staggered by 1/2 of the board length, and local staggered joints should not be less than 1. Installation of fasteners: 1) The fasteners shall be installed after 8 hours of pasting on the extruded board and completed within 24 hours thereafter. Drill holes with an impact drill at the designated location according to the design requirements, with a diameter of 1. The depth of drilling into the base wall is about 6, and the depth of anchoring the fixing parts into the base wall is about 5 to ensure firmness and reliability. The number of fixed components shall be set according to the design specifications. The self tapping screw should be tightened and the engineering plastic expansion nail cap should be flush or slightly screwed into the surface of the extruded board to ensure that the tail of the expansion nail is tightened and fully anchored to the base wall.

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