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Phosphogypsum-based soil stabilizer, preparation method, solidified sample and preparation method of solidified sample
The invention discloses a phosphogypsum-based soil stabilizer, a preparation method, a solidified sample and a preparation method of the solidified sample, and belongs to the technical field of phosphogypsum solid waste recycling. The phosphogypsum-based soil stabilizer comprises modified phosphogypsum and an active component, the mass ratio of the modified phosphogypsum to the active component is 1:(0.5-1.5), and the modified phosphogypsum is prepared by calcining undisturbed phosphogypsum and a modifier A at the temperature of 800-900 DEG C. After the undisturbed phosphogypsum and the carbide slag are calcined at 800-900 DEG C, and the particle size is reduced. On one hand, slight hardening appears on the surface of the material; on the other hand, the particle size is reduced, so that the surface area participating in the reaction is increased, the phosphogypsum with small particle size is large in specific surface area, high in hydration degree, short in hydration time and capable of contributing early strength, and the phosphogypsum with large particle size is small in specific surface area, long in hydration time and used for contributing later strength; and in addition, the compactness is increased, the hydration product density is increased, and the compressive strength is improved.
本发明公开了一种磷石膏基土壤固化剂、制备方法与固化试样及其制备方法，属于磷石膏固废物再生利用技术领域。该磷石膏基土壤固化剂包括改性磷石膏和活性组分，所述改性磷石膏与活性组分的质量比为1：(0.5‑1.5)，所述改性磷石膏由原状磷石膏和改性剂A在800‑900℃温度下煅烧制得。将原状磷石膏与电石渣经800‑900℃煅烧后，颗粒粒径变小，一方面材料表观出现轻微板结；另一方面粒径的减小带来其参与反应的表面积增大，粒径小的磷石膏比表面积较大，水化程度大，水化所需时间少，贡献早期强度，粒径大的磷石膏比表面积小，水化所需时间多，用于贡献后期强度；此外，密实度增大，水化产物致密度增高，抗压强度提高。
Phosphogypsum-based soil stabilizer, preparation method, solidified sample and preparation method of solidified sample
The invention discloses a phosphogypsum-based soil stabilizer, a preparation method, a solidified sample and a preparation method of the solidified sample, and belongs to the technical field of phosphogypsum solid waste recycling. The phosphogypsum-based soil stabilizer comprises modified phosphogypsum and an active component, the mass ratio of the modified phosphogypsum to the active component is 1:(0.5-1.5), and the modified phosphogypsum is prepared by calcining undisturbed phosphogypsum and a modifier A at the temperature of 800-900 DEG C. After the undisturbed phosphogypsum and the carbide slag are calcined at 800-900 DEG C, and the particle size is reduced. On one hand, slight hardening appears on the surface of the material; on the other hand, the particle size is reduced, so that the surface area participating in the reaction is increased, the phosphogypsum with small particle size is large in specific surface area, high in hydration degree, short in hydration time and capable of contributing early strength, and the phosphogypsum with large particle size is small in specific surface area, long in hydration time and used for contributing later strength; and in addition, the compactness is increased, the hydration product density is increased, and the compressive strength is improved.
本发明公开了一种磷石膏基土壤固化剂、制备方法与固化试样及其制备方法，属于磷石膏固废物再生利用技术领域。该磷石膏基土壤固化剂包括改性磷石膏和活性组分，所述改性磷石膏与活性组分的质量比为1：(0.5‑1.5)，所述改性磷石膏由原状磷石膏和改性剂A在800‑900℃温度下煅烧制得。将原状磷石膏与电石渣经800‑900℃煅烧后，颗粒粒径变小，一方面材料表观出现轻微板结；另一方面粒径的减小带来其参与反应的表面积增大，粒径小的磷石膏比表面积较大，水化程度大，水化所需时间少，贡献早期强度，粒径大的磷石膏比表面积小，水化所需时间多，用于贡献后期强度；此外，密实度增大，水化产物致密度增高，抗压强度提高。
Phosphogypsum-based soil stabilizer, preparation method, solidified sample and preparation method of solidified sample
一种磷石膏基土壤固化剂、制备方法与固化试样及其制备方法
ZHOU JIACHENG (author) / SHI XIONG (author) / HUANG JIANZHANG (author) / LI YONGCHUN (author)
2021-11-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
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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