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

Concrete waste slurry concentrated solution suspension stabilizer and preparation method thereof

A technology of suspension stabilizer and concentrate, which is applied in the field of suspension stabilizer for concrete waste slurry concentrate and its preparation, can solve the problems of poor stability of concrete waste slurry concentrate, easy occurrence of water stratification, poor homogeneity, etc., and achieve improvement Suspension dispersion effect, reduction of bleeding stratification and hardening phenomenon, and the effect of inhibiting hydration

Active Publication Date: 2021-12-17
CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies, the purpose of the present invention is to provide a suspension stabilizer for concrete waste slurry concentrate and a preparation method thereof, which can effectively solve the problems of poor stability, poor homogeneity and problems of the ground concrete waste slurry concentrate during storage and application. Prone to problems such as water layering and hardening

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
  • Concrete waste slurry concentrated solution suspension stabilizer and preparation method thereof
  • Concrete waste slurry concentrated solution suspension stabilizer and preparation method thereof
  • Concrete waste slurry concentrated solution suspension stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of preparation method of concrete waste slurry concentrate suspension stabilizer, concrete steps are as follows:

[0041] (1) Weigh 100g of glycerol and 2.8g of deionized water in a reaction vessel, stir and mix evenly, then add 12.6g of maltose and 1.4g of hydroxypropyl methylcellulose, heat up to 70°C, and continue stirring for 2h, A clear solution is obtained;

[0042] (2) Weighing 1.4g of chlorite and adding it to the solution in step 1), the rotating speed is 6000rpm and continuous high-speed stirring for 1h to obtain a uniform suspension;

[0043] (3) Add 0.7g of phosphorous acid to the suspension in step 2), stir for 5min, then continuously add 21g of pyrophosphoric acid within 1h, control the reaction temperature at 70°C, and react for 8h to prepare the concrete waste slurry concentrate suspension stabilizer.

Embodiment 2

[0045] A kind of preparation method of concrete waste slurry concentrate suspension stabilizer, concrete steps are as follows:

[0046] (1) Weigh 100g of glycerol and 3.1g of deionized water in the reaction vessel, stir and mix evenly, then add 23.1g of lactose and 1.5g of hydroxypropyl cellulose to it, raise the temperature to 80°C, and keep stirring for 4h to obtain clarification solution;

[0047] (2) Weighing 1.5g of illite and adding it to the solution in step 1), the rotating speed is 10000rpm and continuous high-speed stirring for 3h to obtain a uniform suspension;

[0048] (3) Add 1.5g of phosphoric acid to the suspension in step 2), stir for 10min, then continuously add 23.1g of phosphorus trichloride within 2h, control the reaction temperature at 90°C, and react for 7h to obtain concentrated concrete waste slurry Liquid suspension stabilizer.

Embodiment 3

[0050] A kind of preparation method of concrete waste slurry concentrate suspension stabilizer, concrete steps are as follows:

[0051] (1) Weigh 100g of glycerol and 4.6g of deionized water in a reaction vessel, stir and mix evenly, then add 7.7g of sucrose and 4.6g of hydroxyethyl cellulose to it, raise the temperature to 70°C, and keep stirring for 3h to obtain clarification solution;

[0052] (2) Weighing 3.1g of kaolinite and adding it to the solution in step 1), the rotating speed is 9000rpm and continuous high-speed stirring for 2h to obtain a uniform suspension;

[0053] (3) Add 1.5 g of sulfurous acid to the suspension in step 2), stir for 8 minutes, then continuously add 32.3 g of phosphorus pentoxide within 2 hours, control the reaction temperature at 75 ° C, and react for 6 hours to obtain concrete waste slurry Concentrate suspension stabilizer.

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

No PUM Login to View More

Abstract

The invention discloses a concrete waste slurry concentrated solution suspension stabilizer and a preparation method thereof, and belongs to the technical field of concrete waste slurry concentration. The concrete waste slurry concentrated solution suspension stabilizer is prepared from, by mass, 1 to 2 percent of expansive clay, 5 to 15 percent of water-soluble saccharide, 1 to 3 percent of a cellulose ether derivative, 60 to 75 percent of glycerol, 15 to 25 percent of a phosphate esterification reagent, 2 to 5 percent of deionized water and 0.5 to 3 percent of a catalyst. The concrete waste slurry concentrated solution suspension stabilizer is prepared by taking expansive clay, water-soluble saccharide, the cellulose ether derivative, glycerol and the phosphate esterification reagent as main raw materials through esterification reaction of hydroxyl and a phosphate group under the action of the catalyst. Through the synergistic effect of all the components, the stability and homogeneity of the concrete waste slurry concentrated solution in the storage and application process are remarkably improved, and the phenomena of bleeding layering and hardening are reduced.

Description

technical field [0001] The invention relates to the technical field of concrete waste slurry concentration, in particular to a suspension stabilizer for concrete waste slurry concentrate and a preparation method thereof. Background technique [0002] Concrete waste slurry is a liquid slurry obtained by separating sand, gravel, and coarse sand from waste water and waste residue generated after cleaning of concrete production, transportation, and construction-related equipment. Concrete waste slurry is composed of solid slag (solid particles) and clarified liquid. The solid slag is mainly partially unhydrated cementitious materials, hydration products, and a small amount of solid particles such as stone powder and mud; the waste slurry clarified liquid is the waste slurry that has been allowed to stand for a period of time The supernatant of time has an alkaline pH value, and also contains some soluble inorganic salts and admixture ions of concrete. If it is discharged direct...

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): C04B24/42C04B7/24
CPCC04B40/0039C04B7/246C04B2103/0082C04B24/425C04B24/10C04B24/383C04B24/02C04B24/003Y02P40/10
Inventor 杨文曾超王军刘明高育欣吴雄张磊王福涛高达
Owner CHINA WEST CONSTR ACAD OF BUILDING MATERIALS CO LTD