A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alkali-free, fluorine-free and chlorine-free accelerator as well as preparation method and application thereof
The invention discloses an alkali-free fluorine-free chlorine-free accelerator which comprises the following preparation raw materials in percentage by weight based on the total weight of the preparation raw materials of the accelerator: 25%-65% of aluminum sulfate, 0.5%-10% of anhydrous magnesium sulfate, 0.5%-9% of alkylol amine, 0.1%-3% of a pH regulator, 0.5%-8% of a thixotropic agent, 0.1%-1% of a surfactant and the balance of water, and the sum of the weight percentages of the preparation raw materials is 100%. When the weight mixing amount of the alkali-free, fluoride-free and chlorine-free accelerator prepared by the method is less than or equal to 8% of cement, the initial setting time of neat paste is less than or equal to 5 minutes, the final setting time is less than or equal to 12 minutes, the one-day compressive strength of mortar is greater than or equal to 7 MPa, and the alkali-free, fluoride-free and chlorine-free accelerator has the advantages of wide adaptability, low mixing amount, high early strength, good stability and environmental protection.
本发明公开了一种无碱无氟无氯速凝剂，以所述速凝剂的制备原料总重量计，制备原料的重量百分比分别为：硫酸铝25％～65％、无水硫酸镁0.5％～10％、醇胺0.5％～9％、pH调节剂0.1％～3％、触变剂0.5％～8％、表面活性剂0.1％～1％，余量为水，所述制备原料的重量百分比之和为100％。本发明制备的无碱无氟无氯速凝剂相对于水泥的重量掺量≤8％时，净浆初凝时间≤5分钟、终凝时间≤12分钟，且砂浆的1天抗压强度≥7MPa，具有适应性广、掺量低、早期强度高、稳定性好且绿色环保的优点。
Alkali-free, fluorine-free and chlorine-free accelerator as well as preparation method and application thereof
The invention discloses an alkali-free fluorine-free chlorine-free accelerator which comprises the following preparation raw materials in percentage by weight based on the total weight of the preparation raw materials of the accelerator: 25%-65% of aluminum sulfate, 0.5%-10% of anhydrous magnesium sulfate, 0.5%-9% of alkylol amine, 0.1%-3% of a pH regulator, 0.5%-8% of a thixotropic agent, 0.1%-1% of a surfactant and the balance of water, and the sum of the weight percentages of the preparation raw materials is 100%. When the weight mixing amount of the alkali-free, fluoride-free and chlorine-free accelerator prepared by the method is less than or equal to 8% of cement, the initial setting time of neat paste is less than or equal to 5 minutes, the final setting time is less than or equal to 12 minutes, the one-day compressive strength of mortar is greater than or equal to 7 MPa, and the alkali-free, fluoride-free and chlorine-free accelerator has the advantages of wide adaptability, low mixing amount, high early strength, good stability and environmental protection.
本发明公开了一种无碱无氟无氯速凝剂，以所述速凝剂的制备原料总重量计，制备原料的重量百分比分别为：硫酸铝25％～65％、无水硫酸镁0.5％～10％、醇胺0.5％～9％、pH调节剂0.1％～3％、触变剂0.5％～8％、表面活性剂0.1％～1％，余量为水，所述制备原料的重量百分比之和为100％。本发明制备的无碱无氟无氯速凝剂相对于水泥的重量掺量≤8％时，净浆初凝时间≤5分钟、终凝时间≤12分钟，且砂浆的1天抗压强度≥7MPa，具有适应性广、掺量低、早期强度高、稳定性好且绿色环保的优点。
Alkali-free, fluorine-free and chlorine-free accelerator as well as preparation method and application thereof
一种无碱无氟无氯速凝剂及其制备方法和应用
MA XUEYING (author) / ZHANG YAOYAO (author) / WANG HONGWEI (author)
2021-07-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
Alkali-free fluorine-free chlorine-free liquid concrete accelerator and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2021
| European Patent Office | 2022
Alkali-free, chlorine-free and fluorine-free liquid accelerator, application and concrete
| European Patent Office | 2023