Jiangsu waterproof and air-insulating adhesive manufacturer-how to waterproof the interior walls of a granary, and construction requirements for waterproof coatings on the exterior walls of a granary

Contents of this article

How to prevent moisture in the interior walls of the granary?
What are the waterproofing standards and practices for grain warehouses?
Do grain silos need to be waterproofed?
What are the construction requirements for granary exterior wall waterproof coating?
How to prevent moisture in an iron granary?

How to waterproof the interior walls of the granary?

Method:

First, take moisture-proof measures on the ground and use No. 10 construction petroleum asphalt. Use medium heat to boil asphalt and use two pots at the same time. One pot dissolves the asphalt filter residue; the other pot boils the asphalt to dehydrate it. The temperature control of asphalt boiling should be determined according to the asphalt model to prevent carbonization during asphalt boiling.

Then the ground base layer is processed. The base layer needs to be completely dry. It will take a long time to dry thoroughly. After the foundation project is completed, the soil should be filled and compacted immediately, and the three-component soil cushion layer should be laid. Build walls. The cushion layer must be dense, flat, protected, and painted evenly.

It is better to use a brown brush or a bristle brush for asphalt painting with pure asphalt. The specific operation method is to use an iron spoon with a diameter of 10 centimeters, and apply one to three times for each spoonful. Do not paint back and forth multiple times. It must be thin and even. Use about 4 kilograms of asphalt per square meter.

Put some desiccant to prevent moisture in the grains in the granary. Do not put anything around that is easily affected by moisture. Spread a few more layers of plastic, and then put desiccant directly under the grain.

Moisture-proof measures should be taken on the ground. The pavement layers should be made of 4 cm thick No. 150 plain concrete slabs. They can be precast or cast-in-situ. Each precast slab is 1 square meter. should. Use 1:3 cement mortar to set the grout. After laying the boards, use 1:2 cement mortar to smooth the joints.

Waterproof and moisture-proof construction of the wall base. The waterproof and moisture-proof construction of the wall base can be done by laying the feet in a stepping shape to prevent the pressure from the grain storage side from pushing the wall. Before painting the asphalt, the wall should be primed with 1:3 lime mortar, compacted and smoothed, then painted with a layer of asphalt, the thickness should be uniform, and finally a layer of lime milk should be painted on the surface.

What are the waterproofing standards and practices for grain warehouses?

Method:

Do grain silos need to be waterproofed?

Food is related to the country’s people’s livelihood. Therefore, for the safety of national grain reserves, granaries should have functions such as waterproofing, moisture-proofing, heat preservation, and air tightness. Therefore, waterproofing and moisture-proofing is key. If waterproofing is not done, after the grain is stored, the bottom or the corners and top of the silo will become damp or leak, which will increase the moisture content of the local grain and cause mold and agglomeration of the grain. cause losses.

What are the construction requirements for granary exterior wall waterproof coating?

During the construction of waterproof coatings, attention should be paid to environmental changes. Different environments will have an impact on the film formation of waterproof coatings. Waterproof coating construction temperature requirements: Different coating types have different requirements for construction temperature, which should be controlled according to the temperature in the product description. Generally, it should be between 10 and 35°C, and the minimum temperature should not be lower than 5°C. When constructing paint indoors in winter, insulation and heating measures should be taken. Humidity requirements for waterproof coating construction: The relative humidity during construction is generally 60% to 70%. If the humidity If it is too low and the air is too dry, the solvent will evaporate too quickly and the paint will dry too quickly, resulting in poor conjunctival curing of the coating. However, it is also not suitable to construct waterproof coatings in high-humidity environments or rainy weather. Light requirements for construction of waterproof coatings: The construction site should have sufficient light, especially when color matching and color matching of coatings. If there is insufficient light, not only will the color be inaccurate, but also brush leaks and paint leakage will easily occur. Ventilation requirements for waterproof coating construction such as sagging: It is not advisable to carry out wall paint construction in windy weather. Excessive wind will accelerate the volatilization of solvent or water in the paint, resulting in poor film formation and easy contamination with dust, which affects the quality of the wall. Hygienic requirements for waterproof paint construction: the hygienic conditions of the painting site should be maintained in good condition, and the ground and air should be clean. Dust-free. Otherwise, dust will fall on the coating, causing particles to appear on the surface of the paint film, which will reduce the smoothness and increase the workload of modification and polishing

How to prevent moisture in an iron granary?

1. The air in the rainy season is humid and many things are difficult to dry. Therefore, you should pay attention to moisture-proof measures in the warehouse. According to the situation, use less wet rags and wet mops to clean the warehouse and use more dry rags and dry mops.

2. Because water vapor in the air easily condenses into water droplets when encountering tiny particles, it is necessary to keep the goods and floors clean and free of dust to reduce the formation of water droplets on the surface.

3. Observe the humidity in the warehouse. When the humidity inside the warehouse exceeds the humidity outside the warehouse by more than 15 degrees, open the ventilation windows, ventilation slots, etc. in time for ventilation, and close them otherwise.

4. Lime is used as an adsorbent. 1 kilogram of quicklime can absorb about 0.3 kilograms of moisture in the air. In rainy and humid weather, quicklime can be packed in cloth or sacks and placed in every corner of the warehouse to keep the air in the warehouse dry.

5. Powerful fans can be turned on in small warehouses to enhance air convection in the warehouse and reduce condensation of water droplets. Warehouses with exhaust fans should keep the fans on.

6. Wrap the waterproof beads with a film, because it cannot be completely sealed, and there will still be a lot of water vapor under the film. After the water beads form, they are difficult to evaporate because they are wrapped in the film, and mold is prone to appear. .

7. When checking the goods, you should carefully check the sealing tape on the outer box of the goods. When the surface of the goods gets damp, tiny water droplets will appear on the sealing tape. Once found, employees must be organized to wipe it and use dehumidification. measure.

8. The goods must be placed on pallets and cannot be stacked directly on the ground. For warehouses where pallets cannot be obtained in a short time, the stacks must be turned over regularly, because the goods in contact with the ground cannot volatilize due to the penetration of ground water vapor. , condenses into water, and over time, the outer box of the goods will become severely moldy.

9. Cartons of goods should not be stacked too densely, but should be as loose as possible. If they are too densely packed, air convection will be limited, and the accumulation of moist air for a long time will easily produce mold.

10. For heavier goods, the stacking height should be reduced as much as possible. If the stacking height is high, the outer box will become soft due to moisture and the bearing capacity will decrease. It is easy to cause the corners of the outer box to break due to heavy pressure. </p