CN117602898A - Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof - Google Patents

Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof Download PDF

Info

Publication number
CN117602898A
CN117602898A CN202311546950.XA CN202311546950A CN117602898A CN 117602898 A CN117602898 A CN 117602898A CN 202311546950 A CN202311546950 A CN 202311546950A CN 117602898 A CN117602898 A CN 117602898A
Authority
CN
China
Prior art keywords
blast furnace
furnace slag
grouting material
air
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202311546950.XA
Other languages
Chinese (zh)
Inventor
王彬
郑义全
李泽平
潘晓晓
李中文
戚明强
孙堂钦
杨学艳
高亮
蒋发燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gangcheng Group Liangshan Ruihai Industry Co ltd
Original Assignee
Gangcheng Group Liangshan Ruihai Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gangcheng Group Liangshan Ruihai Industry Co ltd filed Critical Gangcheng Group Liangshan Ruihai Industry Co ltd
Priority to CN202311546950.XA priority Critical patent/CN117602898A/en
Publication of CN117602898A publication Critical patent/CN117602898A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
    • C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention provides a grouting material using air-quenched blast furnace slag as aggregate and a preparation method thereof. The preparation method of the invention comprises the following steps: s1: mixing air-quenched blast furnace slag, a cementing material and a water reducing agent to prepare a grouting material dry material; s2: mixing and stirring the grouting material dry material and water to prepare grouting material wet material; s3: and (3) pouring the grouting material wet material into a working surface for maintenance. The invention solves the problem that the digestion capability of the traditional blast furnace slag is gradually reduced, improves the comprehensive utilization rate of the blast furnace slag, and the grouting material prepared by taking the air quenched blast furnace slag as the aggregate is superior to the quartz sand grouting material in the aspects of fluidity, compressive strength, vertical expansion rate and the like.

Description

Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof
Technical Field
The invention relates to the technical field of grouting material preparation, in particular to a grouting material using air quenching blast furnace slag as aggregate and a preparation method thereof.
Background
At present, the aggregate of grouting materials on the market is mainly quartz sand, has the advantages of high fluidity, early strength, no shrinkage, micro expansion, good compactness and the like, and is mainly suitable for anchor bolt anchoring, runway rush repair, nuclear power equipment fixing, road and bridge engineering reinforcement, machine base, equipment secondary grouting and the like.
In recent years, the digestion and utilization of the blast furnace slag are seriously influenced due to the capacity removal of the steel cement, so that not only is the resource waste caused, but also the environmental protection pressure is increased, and therefore, the composite treatment process and the comprehensive utilization technology of the blast furnace slag become important research contents in the steel industry.
In view of this, the present invention has been made.
Disclosure of Invention
The invention aims to provide a grouting material using air-quenched blast furnace slag as aggregate and a preparation method thereof, which solve the problem that the digestion capacity of the traditional blast furnace slag is gradually reduced, and the prepared grouting material is superior to quartz sand grouting material in terms of fluidity, compressive strength, vertical expansion rate and the like.
The invention provides a preparation method of grouting material by using air quenching blast furnace slag as aggregate, which comprises the following steps:
s1: mixing air-quenched blast furnace slag, a cementing material and a water reducing agent to prepare a grouting material dry material;
s2: mixing and stirring the grouting material dry material and water to prepare grouting material wet material;
s3: and (3) pouring the grouting material wet material into a working surface for maintenance.
In the invention, the air-quenched blast furnace slag is hollow continuous graded bead particles obtained by air-quenching common blast furnace slag; specifically, the wind quenching treatment comprises: and (3) taking compressed air with the pressure of 0.7-1.2MPa as a medium, and blowing liquid blast furnace slag with the temperature of over 1100 ℃ to obtain hollow spherical particles, namely the air-quenched blast furnace slag.
Studies have shown that: the physical properties of the air quenched blast furnace slag obtained by the air quenching treatment are similar to those of quartz sand, the stability, durability and stability of the blast furnace slag are obviously improved after the air quenching treatment, and the air quenched blast furnace slag has the characteristics of high strength, high fluidity and the like, and can replace quartz sand to be used as a grouting aggregate.
In the step S1, controlling the grain diameter of the air quenching blast furnace slag to be 10-70 meshes; the mass content of each component in the air-quenched blast furnace slag is as follows: caO 26-28%, siO 2 28-30％，TiO 2 18-20％，Al 2 O 3 12-14％，MgO 10-12％，Fe 2 O 3 1-2％。
In the step S1, the cementing material is C42.5 ordinary Portland cement; the mass ratio of the air-quenched blast furnace slag to the cementing material is 6:4 to 5:5, preferably 5:5.
in the step S1, the water reducer is DH-4005 powdery polycarboxylate water reducer; the water reducer is used in an amount of 0.5-1%, preferably 0.8% of the binder.
In the step S2, the water-cement ratio of the dry grouting material and water during mixing and stirring is controlled to be 0.15-0.25, preferably 0.2.
The invention also provides grouting material which uses the air quenching blast furnace slag as aggregate, and the grouting material is prepared according to the preparation method.
The initial value of the fluidity of the grouting material is more than or equal to 300mm; the fluidity is more than or equal to 280mm after 30 min; the compressive strength is more than or equal to 37Mpa after 1 d; the 3d compressive strength is more than or equal to 66Mpa;28d, the compressive strength is more than or equal to 95Mpa; the vertical expansion rate for 3 hours is 1.5-1.6%; the difference between the expansion rates of 24h and 3h is less than or equal to 0.2 percent.
The implementation of the invention has at least the following advantages:
1. the invention carries out air quenching treatment on the common blast furnace slag to obtain air quenched blast furnace slag, and the air quenched blast furnace slag has the characteristics of high strength, high fluidity and the like, can replace the traditional quartz sand as grouting aggregate, increases the diversity of grouting materials and reduces the cost of the grouting materials;
2. the invention adds a reliable utilization way for the comprehensive utilization of metallurgical solid wastes, solves the problems of gradually reducing the digestion capability of the traditional steel tailings, reducing the utilization rate of the blast furnace slag and the like, and improves the comprehensive utilization rate of the blast furnace slag;
3. the grouting material prepared by using the air-quenched blast furnace slag as the aggregate is superior to the quartz sand grouting material in fluidity, compressive strength, vertical expansion rate and the like.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms also include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The preparation method of the grouting material of the embodiment comprises the following steps:
carrying out air quenching treatment on common blast furnace slag, wherein the air quenching treatment comprises the following steps: the air-quenched blast furnace slag is prepared by blowing liquid blast furnace slag with the temperature of over 1100 ℃ by taking compressed air with the pressure of 1.0MPa as a medium, and the chemical compositions of the air-quenched blast furnace slag are shown in Table 1.
TABLE 1 chemical composition of blast furnace slag
Composition of the components CaO SiO 2 TiO 2 MgO Al 2 O 3 Fe 2 O 3
Mass ratio 26.6％ 28.6 18.9％ 10.5％ 13％ 1.5％
And (3) screening the air-quenched blast furnace slag, and selecting the air-quenched blast furnace slag with the particle size of 10-70 meshes as aggregate.
The air-quenched blast furnace slag and the ordinary Portland cement with the C42.5 are screened according to the mass ratio of 6:4, mixing, adding DH-4005 powdery polycarboxylate superplasticizer, mixing, wherein the dosage of DH-4005 powdery polycarboxylate superplasticizer is 0.8% of the dosage of cement, and obtaining the grouting material dry material.
Mixing and stirring the grouting material dry material and water, and controlling the water-cement ratio to be 0.2 to prepare the grouting material wet material.
And pouring the stirred prepared grouting material wet material on a working surface by a gravity method or a funnel method to realize self-leveling, and then curing the constructed grouting material.
Example 2
The preparation method of the grouting material of the embodiment comprises the following steps:
the air-quenched blast furnace slag prepared in example 1 was sieved, and the air-quenched blast furnace slag having a particle size of 10 to 70 mesh was selected as an aggregate.
The air-quenched blast furnace slag and the ordinary Portland cement with the C42.5 are screened according to the mass ratio of 5:5, mixing, and then adding DH-4005 powdery polycarboxylate superplasticizer, wherein the dosage of the DH-4005 powdery polycarboxylate superplasticizer is 0.8% of the dosage of cement, so as to prepare the grouting material dry material.
Mixing and stirring the grouting material dry material and water, and controlling the water-cement ratio to be 0.2 to prepare the grouting material wet material.
And pouring the stirred prepared grouting material wet material on a working surface by a gravity method or a funnel method to realize self-leveling, and then curing the constructed grouting material.
Comparative example 1
As a control, a common commercially available quartz sand grouting material was used.
Comparative example 2
The blast furnace slag of example 1 was replaced with ordinary blast furnace slag as a control; specifically, common blast furnace slag with the grain size of 10-70 meshes is selected as aggregate, and the aggregate is mixed with C42.5 common Portland cement according to the mass ratio of 5:5, mixing, and then adding DH-4005 powdery polycarboxylate superplasticizer, wherein the dosage of the DH-4005 powdery polycarboxylate superplasticizer is 0.8% of the dosage of cement, so as to prepare the grouting material dry material.
Mixing and stirring the grouting material dry material and water, and controlling the water-cement ratio to be 0.2 to prepare the grouting material wet material.
And pouring the stirred prepared grouting material wet material on a working surface by a gravity method or a funnel method to realize self-leveling, and then curing the constructed grouting material.
Test example 1
Grouting materials of each example and comparative example were tested by JC/T986-2018 cement-based grouting material, and the results are shown in Table 2.
Table 2 test results of each grouting material
As can be seen from table 2:
the grouting material prepared by taking air-quenched blast furnace slag as aggregate can meet the standard requirements in all technical indexes, and is superior to the grouting material prepared by quartz sand in fluidity, compressive strength and vertical expansion rate, and the comprehensive performance of the grouting material is superior to that of the traditional quartz sand grouting material.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. The preparation method of the grouting material using the air-quenched blast furnace slag as the aggregate is characterized by comprising the following steps of:
s1: mixing air-quenched blast furnace slag, a cementing material and a water reducing agent to prepare a grouting material dry material;
s2: mixing and stirring the grouting material dry material and water to prepare grouting material wet material;
s3: and (3) pouring the grouting material wet material into a working surface for maintenance.
2. The method according to claim 1, wherein the particle size of the air-quenched blast furnace slag is controlled to be 10-70 mesh.
3. The preparation according to claim 1The method is characterized in that the mass content of each component in the air-quenched blast furnace slag is as follows: caO 26-28%, siO 2 28-30％，TiO 2 18-20％，Al 2 O 3 12-14％，MgO 10-12％，Fe 2 O 3 1-2％。
4. The method of claim 1, wherein the cementitious material is C42.5 portland cement.
5. The preparation method according to claim 1, wherein the mass ratio of the air-quenched blast furnace slag to the cementing material is 6:4 to 5:5.
6. the preparation method according to claim 1, wherein the water reducing agent is DH-4005 powdery polycarboxylate water reducing agent.
7. The preparation method according to claim 1, wherein the water reducing agent is used in an amount of 0.5-1% of the amount of the cementing material.
8. The method according to claim 1, wherein the cement ratio of the dry grouting material and water is controlled to be 0.15-0.25.
9. Grouting material using air-quenched blast furnace slag as aggregate, characterized by being prepared according to the preparation method of any one of claims 1-8.
10. The grouting material of claim 9, wherein the initial fluidity value of the grouting material is more than or equal to 300mm; the fluidity is more than or equal to 280mm after 30 min; the compressive strength is more than or equal to 37Mpa after 1 d; the 3d compressive strength is more than or equal to 66Mpa;28d, the compressive strength is more than or equal to 95Mpa; the vertical expansion rate for 3 hours is 1.5-1.6%; the difference between the expansion rates of 24h and 3h is less than or equal to 0.2 percent.
CN202311546950.XA 2023-11-20 2023-11-20 Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof Withdrawn CN117602898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311546950.XA CN117602898A (en) 2023-11-20 2023-11-20 Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311546950.XA CN117602898A (en) 2023-11-20 2023-11-20 Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof

Publications (1)

Publication Number Publication Date
CN117602898A true CN117602898A (en) 2024-02-27

Family

ID=89957178

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311546950.XA Withdrawn CN117602898A (en) 2023-11-20 2023-11-20 Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof

Country Status (1)

Country Link
CN (1) CN117602898A (en)

Similar Documents

Publication Publication Date Title
CN110041028A (en) A kind of regeneration concrete and preparation method thereof using building waste
CN110668750B (en) Special high-impermeability compensation shrinkage concrete for urban underground comprehensive pipe gallery and preparation method thereof
CN111499294B (en) Ultrahigh-performance concrete dry powder and preparation method thereof
CN115819049B (en) Cement-based grouting material for mounting wind power foundation tower barrel base and preparation method thereof
CN107572969B (en) Sea sand ultrahigh-performance concrete and preparation method thereof
CN111620624B (en) Self-compacting concrete and preparation method thereof
CN110498630B (en) Concrete composite additive, preparation method thereof and concrete
CN109279861B (en) Self-compacting composite concrete, preparation method thereof and concrete wall brick
CN107793098B (en) High-fluidity rapid repair mortar
CN114409347A (en) Steam-curing-free low-cost ultrahigh-performance concrete and preparation method thereof
CN110218055B (en) Low-sulfur-content negative-temperature sleeve grouting material and preparation method thereof
CN113548841B (en) Composite geopolymer mortar grouting material for reinforcing pavement base and preparation method thereof
CN111908855B (en) Composite pile premixed fluidized solidified soil slurry and preparation method thereof
CN111439973B (en) Cement-based grouting material and preparation method and application thereof
CN111848035A (en) Grouting material for connecting reinforcing steel bar sleeve and preparation method and application thereof
CN114057454A (en) Self-compacting quick-setting dry powder mortar and preparation method thereof
CN110590299A (en) Low-shrinkage wear-resistant cement concrete road rapid repairing material and preparation method thereof
CN107973555A (en) A kind of glass fibre self-compacting concrete
CN113603449A (en) Dry-mixed guniting material for coal mine underground roadway and preparation method thereof
CN115849811B (en) High-stability self-compaction concrete and preparation method thereof
CN113880535B (en) Sleeve grouting material for connecting low-temperature cement-based steel bars
CN117602898A (en) Grouting material using air-quenched blast furnace slag as aggregate and preparation method thereof
CN115321924A (en) Durable self-compacting filling concrete material for underground structural engineering
CN111072299B (en) Concrete mineral admixture based on steel slag flotation tail mud and preparation method thereof
CN114573301A (en) Preparation method of novel composite cement-based grouting material

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20240227