Unlock instant, AI-driven research and patent intelligence for your innovation.

High-fluidity and high-compactness medium-level radioactive waste liquid cement solidificationmaterial and solidificationmethod thereof

A radioactive waste liquid, high fluidity technology, used in radioactive purification, nuclear engineering, etc., can solve the problems of bleeding, low fluidity, and many pores in the solidified body, reducing bleeding, improving fluidity, and excellent performance. Effect

Active Publication Date: 2020-06-12
SICHUAN ENVIRONMENTAL PROTECTION ENG CO LTD CNNC
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-fluidity, high-density medium-level radioactive waste cement solidification material and its preparation method to solve the problems of low fluidity, more pores, and bleeding of the solidified body in the existing cement solidified slurry The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-fluidity and high-compactness medium-level radioactive waste liquid cement solidificationmaterial and solidificationmethod thereof
  • High-fluidity and high-compactness medium-level radioactive waste liquid cement solidificationmaterial and solidificationmethod thereof
  • High-fluidity and high-compactness medium-level radioactive waste liquid cement solidificationmaterial and solidificationmethod thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The high-fluidity, high-density medium-level radioactive waste cement solidification material of this embodiment includes: P.O52.5 cement, medium-level radioactive waste, CGM-A and fatty alcohol sulfonate air-entraining agent; wherein, medium The mass ratio of horizontal radioactive waste liquid, Portland cement, CGM-A and air-entraining agent is 1000:2000:10:1; the salt content of intermediate level radioactive waste liquid is 120g / L.

[0024] The solidification method of the high-fluidity and high-density medium-level radioactive waste liquid cement solidification material of this embodiment comprises the following steps:

[0025] (1) Stir and mix the above-mentioned medium-level radioactive waste liquid, CGM-A and air-entraining agent uniformly, and then add them into Portland cement and stir and mix uniformly to prepare cement mortar.

[0026] (2) Pour the cement mortar into the test mold and cure it for 28 days.

[0027] The above-mentioned cured slurry has a comp...

Embodiment 2

[0029] The high-fluidity, high-density medium-level radioactive waste liquid cement solidification material of this embodiment includes: P.O42.5 cement, medium-level radioactive waste liquid, CGM-A and fatty alcohol sulfonate air-entraining agent; wherein, medium The mass ratio of horizontal radioactive waste liquid, Portland cement, CGM-A and air-entraining agent is 1000:2200:25:3; the salt content of intermediate level radioactive waste liquid is 180g / L.

[0030] The solidification method of the high-fluidity and high-density medium-level radioactive waste liquid cement solidification material of this embodiment comprises the following steps:

[0031] (1) Stir and mix the above-mentioned medium-level radioactive waste liquid, CGM-A and air-entraining agent uniformly, and then add them into Portland cement and stir and mix uniformly to prepare cement mortar.

[0032] (2) Pour the cement mortar into the test mold and cure it for 28 days.

[0033] The above-mentioned cured slu...

Embodiment 3

[0035] The high-fluidity, high-density medium-level radioactive waste cement solidification material of this embodiment includes: P.O52.5 cement, medium-level radioactive waste, CGM-A and fatty alcohol sulfonate air-entraining agent; wherein, medium The mass ratio of horizontal radioactive waste liquid, Portland cement, CGM-A and air-entraining agent is 1000:2500:50:5; the salt content of medium level radioactive waste liquid is 240g / L.

[0036] The solidification method of the high-fluidity and high-density medium-level radioactive waste liquid cement solidification material of this embodiment comprises the following steps:

[0037] (1) Stir and mix the above-mentioned medium-level radioactive waste liquid, CGM-A and air-entraining agent uniformly, and then add them into Portland cement and stir and mix uniformly to prepare cement mortar.

[0038] (2) Pour the cement mortar into the trial mold and cure for 30 days.

[0039] The above-mentioned cured slurry has a compressive ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-fluidity and high-compactness medium-level radioactive waste liquid cement solidificationmaterial and a preparation method thereof, and belongs to the technical field ofradioactive waste treatment. The concrete is prepared from Portland cement, a medium-level radioactive waste liquid, CGM-A and an air entraining agent, wherein the mass ratio of the medium-level radioactive waste liquid to the Portland cement is 1:(2-2.5); and the mass ratio of the Portland cement to the CGM-A to the air entraining agent is 1:(0.005-0.02):(0.0005-0.002). By adding the CGM-A and the air entraining agent, the fluidity of cement mortar is improved, bleeding of a solidified body is reduced, and the leaching performance of the solidified body is improved.

Description

technical field [0001] The invention relates to the technical field of radioactive waste treatment, in particular to a high-fluidity and high-density medium-level radioactive waste liquid cement solidification material and a preparation method thereof. Background technique [0002] During the operation of the reprocessing of nuclear fuel elements, a large amount of waste liquid and medium radioactive waste will be produced. In order to prevent this part of radioactive waste from harming the human living environment, it must be solidified to make it easy to transport and store, and then stored for a long time in The final disposal site of solidified radioactive waste is to ensure that after 300 years of safe isolation of solidified radioactive waste from the environment, the radionuclides have undergone natural decay and their radioactivity has dropped to an acceptable level, no longer endangering the environment. [0003] Cement curing is a relatively safe curing method. Its...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04G21F9/16
CPCC04B28/04G21F9/165C04B2111/00017C04B2201/50C04B2103/304C04B18/0418C04B18/0463
Inventor 徐立国赵玲君李昱汐王宇坤马延彬王凯徐宸皓
Owner SICHUAN ENVIRONMENTAL PROTECTION ENG CO LTD CNNC