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A platform for research: civil engineering, architecture and urbanism
Preparation method of standard gypsum and application of standard gypsum in detection admixture
The invention belongs to the technical field of gypsum modification, and particularly relates to a preparation method of standard gypsum and application of the standard gypsum in a detection admixture. A modifier is prepared from ethylenediamine tetraacetic acid and silicic anhydride, and surface modification treatment is carried out on natural gypsum, so that the content of semi-aqueous phase gypsum (HH) is greater than or equal to 75%, the content of diaqueous phase gypsum (DH) is less than 3%, and the content of soluble anhydrous phase gypsum (AIII) is less than 3%. And the prepared gypsum can be used as reference gypsum, and the performance of the gypsum admixture can be tested and evaluated.
本发明属于石膏改性技术领域，具体涉及一种基准石膏的制备方法及其在检测外加剂中的应用；采用乙二胺四乙酸和硅酸酐制成一种改性剂，对天然石膏进行表面改性处理，使其物相构成为：半水相石膏(HH)含量≥75％，二水相石膏(DH)含量＜3％，可溶性无水相石膏(AⅢ)含量＜3％。且制备得到的石膏可作为基准石膏，对石膏外加剂的性能进行测试评价。
Preparation method of standard gypsum and application of standard gypsum in detection admixture
The invention belongs to the technical field of gypsum modification, and particularly relates to a preparation method of standard gypsum and application of the standard gypsum in a detection admixture. A modifier is prepared from ethylenediamine tetraacetic acid and silicic anhydride, and surface modification treatment is carried out on natural gypsum, so that the content of semi-aqueous phase gypsum (HH) is greater than or equal to 75%, the content of diaqueous phase gypsum (DH) is less than 3%, and the content of soluble anhydrous phase gypsum (AIII) is less than 3%. And the prepared gypsum can be used as reference gypsum, and the performance of the gypsum admixture can be tested and evaluated.
本发明属于石膏改性技术领域，具体涉及一种基准石膏的制备方法及其在检测外加剂中的应用；采用乙二胺四乙酸和硅酸酐制成一种改性剂，对天然石膏进行表面改性处理，使其物相构成为：半水相石膏(HH)含量≥75％，二水相石膏(DH)含量＜3％，可溶性无水相石膏(AⅢ)含量＜3％。且制备得到的石膏可作为基准石膏，对石膏外加剂的性能进行测试评价。
Preparation method of standard gypsum and application of standard gypsum in detection admixture
一种基准石膏的制备方法及其在检测外加剂中的应用
LI ZEGANG (author) / CHEN SHANGWEI (author) / ZHU GUOLIANG (author) / LUO TONG (author) / XU LIBIN (author) / ZHOU LING (author) / HE XINZHOU (author) / CHEN YISU (author) / LIAO CHANG (author) / NIE XIAOPENG (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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