1. Product Overview

This cement grinding aid is a new-generation synthetic polymeric multi-functional composite grinding aid developed by the company. It provides multiple functions, including grinding assistance, output increase and strength enhancement. The product is non-toxic, non-flammable and non-corrosive, harmless to humans, and environmentally friendly. It features reliable and stable quality, and delivers significant benefits in increasing cement output and quality, reducing cement production costs and saving energy.

2. Technical Parameters

Item	Technical specification
Appearance	Light red or colorless liquid
pH value	7.0–9.0
Specific gravity (20 °C)	(1.15–1.25) ± 0.05 g/mL

3. Technical Performance

1. When the 45 μm fineness of the cement is maintained unchanged, cement output can be increased by 10%–30%; the 3-day compressive strength can be increased by 3–5 MPa, and the 28-day compressive strength by 6–10 MPa.

2. When the strength and mill output are maintained essentially unchanged, cement clinker consumption can be reduced by 7%–15%, allowing an equivalent amount of supplementary cementitious materials to be added.

3. Electrical consumption can be reduced by 4–8 kWh per tonne of cement. Comprehensive cost savings can reach RMB 7–15 per tonne, with comprehensive economic benefits of RMB 10–20 per tonne. This helps meet demand during peak cement seasons and delivers significant economic and social benefits.

4. Characteristics of cement produced with the grinding aid:

 (1) The flowability of the cement powder increases.

 (2) The fluidity of the cement paste and mortar increases.

(3) When the type and amount of supplementary cementitious materials remain the same, the water requirement for normal consistency decreases slightly.

(4) The setting time can be adjusted appropriately to meet user requirements.

(5) When 45 μm residue is used to control the finished-product fineness, the residue decreases, while the specific surface area value does not increase.

It is suitable for open-circuit grinding systems, closed-circuit grinding systems and other types of mills.

4. Scope of Application and Dosage

1.Scope of application: This product is suitable for all common cement types specified in the current national standards.

2.Dosage: 0.06%–0.12% of the cement mass.

5. Method of Use

1.The addition rate of the grinding aid shall be calculated and determined according to the hourly mill output.

   Calculation formula: M = (G × T/H) / (P × 60)

   Where: M — addition rate per minute (mL/min); T/H — hourly mill output (t/h); G — grinding aid dosage per tonne of cement (g/t); P — specific gravity of the grinding aid (g/mL).

2. The addition process is simple; accurate and consistent dosing can be achieved using a liquid metering pump.

3.The grinding aid should preferably be added close to the mill inlet and distributed evenly onto the material entering the mill.

4.Maintain stable mill feed rate, avoiding large fluctuations, to ensure stable grinding conditions.

6. Packing and Storage

1. Supplied in 200 kg–1000 kg drums.

2. Store in covered containers and protect from rain and evaporation of water.

3. The product shelf life is 6 months. Product beyond the shelf life may continue to be used after passing inspection.