Reasons for dust and sanding on factory concrete floors and methods to prevent it on warehouse concrete floors:

Common Causes of Dust and Sand on Concrete Floors:

1. Concrete flooring issues due to insufficient concrete grade, resulting in sanding of the surface.

2. Insufficient cement or an excess of sand and stone can also lead to cement ground dusting and sanding.

3. Improper maintenance after concrete construction can also lead to dusting and sanding of the cement ground.

4. Excessive water-cement ratio: This refers to the excessive amount of water used in the concrete mixture, which leads to bleeding on the concrete surface and reduces the surface strength of the concrete.

5. Unreasonable grading of sand and gravel, high clay content: Unreasonable aggregate grading and excessively fine soil sand can easily lead to sanding of the ground, affecting the early hydration of cement and the setting of concrete.

Over-vibration during construction: It exacerbates bleeding on the concrete surface, resulting in lower surface strength of the concrete.

7. Inadequate Maintenance: Failure to properly maintain or insufficient maintenance, combined with prolonged exposure to sunlight or strong winds, causes excessive water loss on the concrete surface, resulting in inadequate hydration and reduced strength.

8. Other reasons: Inadequate control of polishing time, construction on concrete surfaces that have not reached sufficient strength, concrete surfaces freezing during construction in low temperatures, etc.

Method for Handling Dust on Concrete Floors:

The introduction of Junyu FSD-001 Floor Dust and Sand Remover effectively prevents the aforementioned issues. Junyu FSD-001 Floor Dust and Sand Remover is made by combining imported high polymer nanomaterials through multiple processes. These nanomaterials can penetrate deeply into the cement ground, firmly locking the loose particles, creating a tightly integrated surface, facilitating close adhesion between the floor covering materials and the ground, and effectively preventing hollowing of the cement ground. Junyu FSD-001 Floor Dust and Sand Remover is water-resistant and moisture-proof, preventing the cement from being eroded by moisture and deformed, and also avoiding "dust flying" from floor gaps in the future.

Advantages of Dust and Sand Control Agent

1) Durable: The ground treated with concrete densifying hardener will achieve a Mohs hardness of 8~9, an increase of approximately 45% in Mohs hardness.

2) Abrasion-Resistant: The concrete sealer solidifier can solidify various components within the concrete into a hard mass, enhancing its hardness and compactness. After the treated surface has cured, its abrasion resistance will increase by over 8 times.

3) Dustproof: The concrete sealant chemical reacts with the silicate in the concrete, forming a dust-free and dense whole on the concrete surface, controlling the emergence of concrete dust from surface pores.

4) Anti-Slip: On standard concrete surfaces, salt and alkali components can leach to the surface, causing slippage. However, surfaces treated with concrete sealant densifier form a strong, dense whole on the concrete surface, preventing the salt and alkali components from leaching out.

5) Improved Resistance: The treated samples demonstrated a 25% increase in compressive strength compared to untreated samples, and flexural strength also saw an improvement.

6) Waterproofing: Concrete sealant can effectively penetrate into the concrete, undergo a chemical reaction with it, lock in the pores, and provide a sealing effect on the concrete surface.

【III】Instructions for Use: Dust and Sand Treatment Agent

Remove debris from the concrete floor (e.g., cement chips, paint blobs, garbage, dust).

2. Remove the loose layer from the cement ground surface using a 50#1003 grinding blade (about 1mm thick), and then clean the dust with an industrial dust cleaner.

3. Thoroughly clean the ground with water and wait until it is over 80% dry before applying the dust and sand treatment agent. Mix the product with water at a ratio of approximately 0.3 kg/㎡ (1:5) and evenly spray it on the ground (do not use metal utensils for stirring). Then, use a water pusher to spread it evenly, allowing the treatment agent to potentially penetrate the concrete.

Several hours later, if residual dusting and sanding treatment agents (i.e., ground whitening) are still present, re-water and soak. Several hours later, use a heavy-duty resurfacing machine with a 50# grinding disc to grind the cement floor to assist in the absorption of the dusting and sanding treatment agents; once grinding is complete, clean the floor thoroughly, and then apply the dusting and sanding treatment agent diluted with water (1:5) using the method described in the third step previously.

6. Once the surface is slightly dry, sand the surface with 300# and 500# sandpapers. Meanwhile, apply the mixed hardener (1:10 ratio) to the water tank of the sanding machine (or directly onto the floor) to accelerate the penetration and hardening of the concrete floor treatment agent; (each sanding session requires the use of an industrial vacuum cleaner to remove wastewater and cement slurry.)

7. Polished cement surface with 1000#, 2000#, and 3000# grinding discs to achieve a beautifully polished and shiny floor finish. (Industrial vacuum cleaner required for cleaning away sludge and wastewater after each grinding session.)

8. Dust-free Hardening Ground Treatment: Abrasion-resistant, dust-free, pressure-resistant, with a certain reflective finish, lifespan of up to 20 years, and easy maintenance – simply sweep the floor.