High Temperature Retarder Lliquid
KC-HNJ high temperature retarder liquid. KC-HNJ high temperature retarder is made by polymerization modification of AMPS, low molecular amide, polyhydroxy carboxylic acid, etc., through adsorption, chelation, dispersion and wetting, etc., through the diffusion electric double layer at the initial stage of cement hydration Disperse cement particles and form a solvated film with calcium ions on the surface of the cement particles. It is preferentially adsorbed on tricalcium aluminate to slow down hydration and achieve retarding effect. However, it shows weak adsorption performance for tricalcium silicate, thus also Ensure the development of later cement strength.
Product Description
Overview
Suitable for medium and high temperature low density, conventional density and high density cement slurry systems.
Applicable temperature range: 30~160ºC.
The strength of cement stone develops rapidly.
The cement paste is unstable, and a small amount of micro silicon can be added appropriately.
It is suitable for water distribution and has no special requirements on the water quality of the slurry.
Physical and chemical indicators
| Appearance | Water solubility | Freezing point, ºC |
| Colorless or light yellow liquid | 100% | ≤-5 |
Cement slurry formula
| Cement slurry density | recommended dosage |
| 1.90±0.01g/cm | 3 0.1-3.0% (BWOC); |
Cement slurry performance
| Item | Experimental conditions | Technical indicators |
| Initial consistency, Bc | 120ºC/73.9MPa.61min | ≤30 |
| Thickening time ratio | >1.1 | |
| 40Bc~100Bc time, min | ≤40 | |
| Free liquid,% | 120ºC, normal pressure | <2.5 |
| 24h compressive strength, MPa | 120ºC, 20.7MPa | >14 |
Packaging and storage
Use 20kg or 25kg, 200L or 5USgal plastic drums, or according to customer requirements.
The shelf life is 12 months. If the shelf life is exceeded, it can be used only after passing the inspection. It should be stored in a ventilated, cool, and dry warehouse to avoid sun and rain. It is recommended that the barrel stack height does not exceed 3 layers.
