Oligomer prepared from superfine blast furnace slag powder and preparation method thereof

A technology of blast furnace slag powder and blast furnace slag, which is applied in the field of oligomers prepared from ultrafine blast furnace slag powder and its preparation field, can solve the problems of poor mutual solubility and cohesion of inert materials, poor fluidity, etc., and achieve improved road bearing capacity, high resistance The effect of low pressure and pressure bleeding rate

Inactive Publication Date: 2020-04-10
郑州腾飞建设工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] There are some problems in the current oligomers: 1. Poor fluidity; 2. Poor mutual solubility and bonding with inert materials such as soil or interlayer silt; 3. The specific surface area of ​​the ore powder used in general oligomers is only 300-400m2 / kg

Method used

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  • Oligomer prepared from superfine blast furnace slag powder and preparation method thereof
  • Oligomer prepared from superfine blast furnace slag powder and preparation method thereof
  • Oligomer prepared from superfine blast furnace slag powder and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] An oligomer prepared by using superfine blast furnace slag powder, including the following raw materials, component A: 700 kg of blast furnace slag, 300 kg of fly ash; 450 kg in total of component B: 27 kg of alkaline activator, plus 6.75 kg of auxiliary agent I, 0.135 kg of external auxiliary agent II, and 0 kg of external auxiliary agent III; the weight ratio of component A and component B is 1:0.45; 416.115 kg of water.

[0024] The alkaline activator is MgoH, the external additive I is calcium formate, the external additive II is triethanolamine, and the external additive III is sodium metasilicate, the modulus is 1.4, and the solid content is 0.41.

[0025] The method for preparing above-mentioned oligomer is:

[0026] Step 1), weigh component A by weight, put the weighed component A into the θ3.2*13m ball mill, the diameter-to-length ratio of the grinder is required to be greater than 4, and grind to obtain D50 10μm, specific surface area greater than 700m 2 / k...

Embodiment 2

[0029] An oligomer prepared by utilizing superfine blast furnace slag powder, including the following raw materials in kilograms by weight, component A: 700 kilograms of blast furnace slag, 300 kilograms of fly ash; 450 kilograms of component B: 29.25 kilograms of alkaline activator, 9 kg of additives I, 0.225 kg of additives II, and 0 kg of additives III; the weight ratio of components A and B is 1:0.45; water is 411.525 kg.

[0030] The alkaline activator is MgoH, the external additive I is calcium formate, the external additive II is triethanolamine, and the external additive III is sodium metasilicate, the modulus is 1.4, and the solid content is 0.41.

[0031] The method for preparing above-mentioned oligomer is:

[0032] Step 1), weigh component A by weight, put the weighed component A into the ball mill, the diameter-to-length ratio of the grinder is required to be greater than 4, and the specific surface area obtained by grinding is greater than 700m 2 / kg of composit...

Embodiment 3

[0035] An oligomer prepared by utilizing superfine blast furnace slag powder, including the following raw materials in kilograms by weight, component A: 700 kilograms of blast furnace slag, 300 kilograms of fly ash; 450 kilograms of component B: 29.25 kilograms of alkaline activator, 9 kg of additives I, 0.225 kg of additives II, and 54 kg of additives III; the weight ratio of components A and B is 1:0.45; 357.525 kg of water.

[0036] The alkaline activator is MgoH, the external additive I is calcium formate, the external additive II is triethanolamine, and the external additive III is sodium metasilicate, the modulus is 1.4, and the solid content is 0.41.

[0037] The method for preparing above-mentioned oligomer is:

[0038] Step 1), weigh component A by weight, put the weighed component A into a ball mill, and grind to obtain a specific surface area greater than 700m 2 / kg of composite powder;

[0039] Step 2), weigh component B according to the weight ratio, add it to t...

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Abstract

The intention relates to the technical field of road engineering, in particular to an oligomer prepared from superfine blast furnace slag powder and used for road surface void treatment grouting materials and a preparation method of the oligomer. The oligomer comprises a component A, a component B and water, and the weight ratio of the component A to the component B is 1: 0.45; wherein the component A is composite powder which is obtained by grinding blast furnace slag and fly ash in a weight ratio of 70%: 30% through a ball mill with the size of theta 3.2 * 13m and has the D5010mu m and the specific surface area of more than or equal to 700m < 2 >/g; the component B is prepared from the following raw materials in parts by weight: 6-6.5 parts of an alkaline exciting agent, 1.5-2 parts of an additive I, 0.03-0.05 part of an additive II, 0-12 parts of an additive III and 79.45 to 92.47 parts of water. After reaction, the oligomer grouting material is compact in structure and low in pressure bleeding rate, the road bearing capacity is improved, the capacity of resisting cracks generated by bending and tensile deformation is improved, and the water scouring resistance is improved.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to an oligomer prepared by superfine blast furnace slag powder and a preparation method thereof for grouting material for hollowing out of roads. Background technique [0002] In view of the fact that the cement pavement hollowing treatment grouting material is mainly to fill the fine gaps between the layers of the pavement structure, bond and reinforce the loose, and empty interlayer materials, so after grouting, it can firstly form a higher strength in a short period of time. So as to achieve obvious reinforcement effect and improve the bearing capacity of the road surface. This requires the grouting material to have the following properties: [0003] 1) The fluidity of the slurry is good and the permeability is high. Under the low pressure state, the slurry can be penetrated well. It has strong injectability and good pumpability. It can penetrate into small cracks or po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
CPCC04B40/0039C04B18/141C04B18/08C04B22/066C04B24/04C04B24/122C04B12/04
Inventor 周凯唐东升李楠韦鹤李柱
Owner 郑州腾飞建设工程集团有限公司
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