General Description

ChaRisma®CR series of cement grinding aids arechemicals, added in to the mixture of clinker and gypsum during the grinding process, to optimize the particle size distribution and improve cement strength. It is solely developed and manufactured by ChaRisma®. The intellectual property right of ChaRisma®CR series are owned exclusively by Charisma.

Classification

ChaRisma®CR series of cement grinding aids consist of ChaRisma®CR-1, CR-2 and CR-3. All comply with American standard ASTMC465-92 and China’s national standard JC/T 667－2004. Quality Assurance.

ChaRisma®CR is manufactured under ISO quality management system. Its performances meet entirely the requirements in china’s national standard JC/T 667－2004 and other compulsory requirements for health and environment.

Compatibility

ChaRisma® CR series are compatible with concrete admixtures such as Water reducers, retarders, air entrainer and superplasticizers. The performance of the admixtures and physical properties of concrete, including water requirement and slump loss of concrete, is not influenced by the use of ChaRisma® CR series.

CR-1

ChaRisma® CR-1 is a liquid applied during grinding of cement whose benefits are output increase of the mill with no negative influence on cement strength.

Conformity

• 1、The appearance: brown.
• 2、PH value: 6～7
• 3、Density: 1.19-1.23 g/cm3
• 4、Chloride content : no more than 0.01%

Main properties

• 1、ChaRisma® CR-1 improves the grinding efficiency and increases the yield of the cement mill by around 25%.
• 2、ChaRisma® CR-1 reduces the unit power cost of the mill up to 25% and lower the total production cost.
• 3、ChaRisma® CR-1 betters the flowability of the powdery materials in the mill and diminishes the overgrinding of the clinker and other reactive addiitions such as blast furnace slag, fly ash, and fillers as limestone. .
• 4、ChaRisma® CR-1 lowers the rest angle of cement and diminishes cement conglomeration in storage which results in pack set or silo set of cement , and decreases the handling cost.
• 5、ChaRisma® CR-1 has no corrosion to mill and steel in concrete.
• 6、ChaRisma® CR-1 has little influence on the setting time and water requirement of cement.
• 7、ChaRisma® CR-1 do no harm to the workability, mechanical properties and durability of concrete.

Dosage

The recommended dosage of CR-1 ranges from 0.02% to 0.06% by weight of cement. The specific dosage for a mill is affected by properties of clinker and additions, and the machinery equipment and technical parameters of the mill. It should be determined through laboratory and mill trials.

Application Area

ChaRisma® CR-1 is in particular suitable for improvement of the mill output and for reduction of unit power cost.