2results about How to "Short setting time" patented technology

This invention discloses a method for solidifying arsenic using copper slag. The method involves adding arsenic-containing substances to copper slag, mixing it thoroughly, adding a sulfuric acid solution with a mass concentration of 10-25%, stirring evenly at room temperature, molding, demolding, and curing to achieve the purpose of solidifying arsenic. This invention utilizes the chemical reaction between copper slag and sulfuric acid solution to harden the material, thereby generating strength. When used as a casting material, it not only has the characteristics of fast setting time, good stability, and good durability, but also has excellent adhesion, realizing the comprehensive utilization of industrial waste.

The application provides a kind of improved sulphate saline soil road base road building material and preparation method, the improved sulphate saline soil road base road building material includes the following raw material components: by mass percentage, steel slag 1~3.45%, fly ash 1~3.45%, cement 0.55~1.77%, sodium hydroxide 0.54~1.7%, water 1.68~6.38% and sulphate saline soil 83.25~95.23%, the mass percentage of each component is 100%, and the preparation method includes: step 1, the formula amount of steel slag, fly ash, cement is dried and then ground and mixed, then mixed with the formula amount of water and stirred uniformly to prepare mixed liquor A; the formula amount of NaOH is prepared to obtain 10mol / L NaOH solution; step 2, mixed liquor A and the NaOH solution prepared in step 1 are mixed to prepare geopolymer; step 3, the geopolymer is mixed with the formula amount of sulphate saline soil to obtain the product. The improved material provided by the application has the characteristics of good low-temperature resistance, strong anti-freeze-thaw cycle ability, good impermeability, small expansion, good volume stability, and high mechanical properties of the reinforced soil body.