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A platform for research: civil engineering, architecture and urbanism
Neutral water-resistant high-strength active mortar lightweight aggregate and preparation method thereof
The invention discloses a neutral water-resistant high-strength active mortar lightweight aggregate and a preparation method thereof, and relates to the technical field of phosphorus chemical solid waste resource utilization. The preparation method comprises the following steps: mixing ardealite, sodium citrate, aluminum sulfate and monocalcium phosphate in proportion, drying at 80-130 DEG C, and introducing carbon dioxide gas in the process to obtain the mortar lightweight aggregate of which the semi-aqueous phase is less than or equal to 20% and the free water content is less than or equal to 1%. The low-carbon low-energy-consumption neutral water-resistant high-strength active mortar lightweight aggregate with the pH value of 7-8, the softening coefficient K being larger than or equal to 0.85, the activity index H28 being larger than or equal to 70% and stable quality is prepared with low energy consumption, the lightweight aggregate can be used for replacing part of production raw materials needed for production of sand-gravel materials, mortar, building blocks and other products, the product cost is effectively reduced, the application range of industrial solid waste products is widened, and the method is suitable for industrial production. And the comprehensive treatment capacity of the industrial solid waste is greatly improved.
本发明公开了一种中性耐水高强活性砂浆轻集料及其制备方法，涉及磷化工固废资源化利用技术领域。将磷石膏、柠檬酸钠、硫酸铝、磷酸二氢钙按比例混合后，在80～130℃下进行烘干，过程中通途二氧化碳气体，得到半水相≤20％且游离水含量≤1％的砂浆轻集料，低能耗制备得到pH值为7～8中性、软化系数K≧0.85、活性指数H28≧70％、品质稳定的低碳低能耗型中性耐水高强活性砂浆轻集料，利用此轻集料可取代生产砂石料、砂浆、砌块等产品所需的部分生产原料，有效降低了产品成本，扩大了工业固废制品的应用范围，大幅度的提高工业固废的综合处理量。
Neutral water-resistant high-strength active mortar lightweight aggregate and preparation method thereof
The invention discloses a neutral water-resistant high-strength active mortar lightweight aggregate and a preparation method thereof, and relates to the technical field of phosphorus chemical solid waste resource utilization. The preparation method comprises the following steps: mixing ardealite, sodium citrate, aluminum sulfate and monocalcium phosphate in proportion, drying at 80-130 DEG C, and introducing carbon dioxide gas in the process to obtain the mortar lightweight aggregate of which the semi-aqueous phase is less than or equal to 20% and the free water content is less than or equal to 1%. The low-carbon low-energy-consumption neutral water-resistant high-strength active mortar lightweight aggregate with the pH value of 7-8, the softening coefficient K being larger than or equal to 0.85, the activity index H28 being larger than or equal to 70% and stable quality is prepared with low energy consumption, the lightweight aggregate can be used for replacing part of production raw materials needed for production of sand-gravel materials, mortar, building blocks and other products, the product cost is effectively reduced, the application range of industrial solid waste products is widened, and the method is suitable for industrial production. And the comprehensive treatment capacity of the industrial solid waste is greatly improved.
本发明公开了一种中性耐水高强活性砂浆轻集料及其制备方法，涉及磷化工固废资源化利用技术领域。将磷石膏、柠檬酸钠、硫酸铝、磷酸二氢钙按比例混合后，在80～130℃下进行烘干，过程中通途二氧化碳气体，得到半水相≤20％且游离水含量≤1％的砂浆轻集料，低能耗制备得到pH值为7～8中性、软化系数K≧0.85、活性指数H28≧70％、品质稳定的低碳低能耗型中性耐水高强活性砂浆轻集料，利用此轻集料可取代生产砂石料、砂浆、砌块等产品所需的部分生产原料，有效降低了产品成本，扩大了工业固废制品的应用范围，大幅度的提高工业固废的综合处理量。
Neutral water-resistant high-strength active mortar lightweight aggregate and preparation method thereof
一种中性耐水高强活性砂浆轻集料及其制备方法
2023-08-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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