[Semi-refined paraffin supply] How is paraffin obtained from petroleum?
The process of obtaining paraffin from petroleum generally involves dewaxing and deoiling the lubricating oil fraction obtained by distilling petroleum, and then refining and molding it. It can be pac…
The optimal dosage of early-strength water-reducing agent, the results obtained after hundreds of trials
Main properties and parameters of early-strength superplasticizer: 1. The dosage is 0.5% of the weight of cement ~ 1%, the water reduction rate can reach 12% ~ 25%; 2. The early strength increases qui…
By chance, I obtained a rare early-strength water-reducing agent compound method.
Commonly used compound materials include sodium gluconate, dextrin, air-entraining agents, defoaming agents, sodium nitrate, inorganic salts, alcoholamine enhancers, etc. The compounding methods are: …
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