A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of CaSO4-based solid waste environment-friendly filling material
The invention discloses a preparation method of a CaSO4-based solid waste environment-friendly filling material. The method mainly utilizes a powder modification principle, and comprises the following steps: adding K-Q type trace curing stabilizer powder into CaSO4-based solid waste powder, mixing for 20-120 minutes at a stirring speed of 400-1000 rpm to enable the powder to be in full contact, and then performing closed maintenance for 8-24 hours at the temperature of 25-45 DEG C and the humidity of 50-89% to prepare the CaSO4-based solid waste environment-friendly filling material. According to the method, the preparation cost is low, the utilization rate of the CaSO4-based solid waste is larger than 80%, all indexes of the leaching toxicity of the CaSO4-based solid waste meet the environmental protection requirement, and filling can be conducted in the form of powder.
本发明公开了一种CaSO4基固废环保充填材料的制备方法，该方法主要利用粉体改性原理，通过在CaSO4基固废粉体中添加K‑Q型微量固化稳定剂粉体，在400~1000rpm搅拌速度下混合20~120min，使其充分接触，然后在25~45℃、湿度50~89%下密闭养护8~24h，制得CaSO4基固废环保充填材料；该方法制备成本低、且CaSO4基固废利用率大于80%，其浸出毒性的各项指标复合环保要求，而且可以以粉体的形式进行充填。
Preparation method of CaSO4-based solid waste environment-friendly filling material
The invention discloses a preparation method of a CaSO4-based solid waste environment-friendly filling material. The method mainly utilizes a powder modification principle, and comprises the following steps: adding K-Q type trace curing stabilizer powder into CaSO4-based solid waste powder, mixing for 20-120 minutes at a stirring speed of 400-1000 rpm to enable the powder to be in full contact, and then performing closed maintenance for 8-24 hours at the temperature of 25-45 DEG C and the humidity of 50-89% to prepare the CaSO4-based solid waste environment-friendly filling material. According to the method, the preparation cost is low, the utilization rate of the CaSO4-based solid waste is larger than 80%, all indexes of the leaching toxicity of the CaSO4-based solid waste meet the environmental protection requirement, and filling can be conducted in the form of powder.
本发明公开了一种CaSO4基固废环保充填材料的制备方法，该方法主要利用粉体改性原理，通过在CaSO4基固废粉体中添加K‑Q型微量固化稳定剂粉体，在400~1000rpm搅拌速度下混合20~120min，使其充分接触，然后在25~45℃、湿度50~89%下密闭养护8~24h，制得CaSO4基固废环保充填材料；该方法制备成本低、且CaSO4基固废利用率大于80%，其浸出毒性的各项指标复合环保要求，而且可以以粉体的形式进行充填。
Preparation method of CaSO4-based solid waste environment-friendly filling material
一种CaSO4基固废环保充填材料的制备方法
QU GUANGFEI (author) / WU FENGHUI (author) / LIU SHAN (author) / ZHAO CHENYANG (author) / CHEN BANGJIN (author) / LIU LIANGLIANG (author) / LI JUNYAN (author) / YANG CAN (author)
2021-08-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2023
| European Patent Office | 2024
Solid waste-based underground filling material and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2021