CN110981341A - Mining high-strength composite mortar material and preparation method thereof - Google Patents
Mining high-strength composite mortar material and preparation method thereof Download PDFInfo
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- CN110981341A CN110981341A CN201911286288.2A CN201911286288A CN110981341A CN 110981341 A CN110981341 A CN 110981341A CN 201911286288 A CN201911286288 A CN 201911286288A CN 110981341 A CN110981341 A CN 110981341A
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- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
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- 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 mining high-strength composite mortar material which is prepared from the following raw materials in percentage by mass: 40-70% of stone powder, 10-40% of clinker, 3-10% of accelerating agent, 5-10% of cellulose, 2-10% of aluminum sulfate and 2-10% of water reducing agent, wherein the preparation method of the mining high-strength composite mortar material comprises the following steps: firstly, preparing stone powder, clinker, an accelerator, cellulose, aluminum sulfate and a water reducer in corresponding proportions; secondly, mixing the clinker and cellulose to obtain a mixed material A; thirdly, mixing the stone powder and the aluminum sulfate to obtain a mixed material B; fourthly, mixing the 1/2 mixture A, the 1/2 mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 mixture A and 1/2 mixture B to obtain a mixture D; fifthly, adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 12-16min at a stirring speed of 80-100 r/min; and sixthly, after stirring is finished, packaging the material obtained in the step e to obtain a finished product.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a mining high-strength composite mortar material and a preparation method thereof.
Background
Mortar is a bonding substance used for building bricks on buildings, and is formed by adding water into sand and cementing materials such as clinker, lime paste, clay and the like according to a certain proportion, and is also called mortar. The mortar is characterized in that the common clinker mortar, mixed mortar, lime mortar and clay mortar are used, the newly mixed common mortar is required to have good workability, the hardened mortar is required to have strength and binding power, the workability of the mortar is related to the fluidity and water retention of the mortar, the binding power of the mortar is generally mastered according to construction experience or determined through experiments, the surface state, cleanness, humidity and construction and maintenance conditions of masonry and the like are related to the binding power of the mortar, the commonly used mortar generally comprises common silicate clinker, quartz sand, a thickening agent, a defoaming agent and the like, a large amount of mineral raw materials are required to be added in the using process, the manufacturing cost is high, and the use requirements of the existing mortar are difficult to meet along with the requirements of diversification, specialization and high performance of building material application.
Disclosure of Invention
The invention provides a novel mining high-strength composite mortar material and a preparation method thereof, and aims to solve the technical problem that the existing mortar is high in manufacturing cost.
In view of the above, the invention provides a novel mining high-strength composite mortar material, which is composed of the following raw materials in percentage by mass: 40-70% of stone powder, 10-40% of clinker, 3-10% of accelerating agent, 5-10% of cellulose, 2-10% of aluminum sulfate and 2-10% of water reducing agent.
In the technical scheme, the clinker comprises cement, and stone powder generated by industrial byproducts is fully utilized to replace clay raw materials to form an admixture of the clinker and the concrete with excellent performance, so that the manufacturing cost of the mortar is effectively reduced.
In any of the above technical solutions, preferably, the composition comprises the following components by mass percent: 60% of stone powder, 15% of clinker, 4% of accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of water reducer.
In any of the above technical solutions, preferably, the composition comprises the following components by mass percent: 60% of stone powder, 22% of clinker, 3% of accelerator, 6% of cellulose, 5% of aluminum sulfate and 4% of water reducer.
In any of the above technical solutions, preferably, the composition comprises the following components by mass percent: 55% of stone powder, 20% of cement, 4% of an accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of a water reducing agent.
In any of the above technical solutions, preferably, the composition comprises the following components by mass percent: 65% of stone powder, 17% of cement, 5% of an accelerator, 6% of cellulose, 4% of aluminum sulfate and 3% of a water reducing agent.
In any of the above solutions, preferably, the clinker is a hydraulic binder.
In any of the above solutions, preferably, the hydraulic binder comprises shrinkage-free rapid hardening silicate clinker.
In any of the above technical solutions, preferably, the accelerating agent is lithium hydroxide.
In any of the above technical solutions, preferably, the particle size of the stone powder is less than or equal to 3 mm.
The preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and a water reducer according to corresponding proportions;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. 1/2, mixing the mixture A, 1/2, the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 of the mixture A and the rest 1/2 of the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 12-16min at a stirring speed of 80-100 r/min;
f. and e, after stirring is finished, packaging the material obtained in the step e to obtain a finished product.
Compared with the prior art, the invention has the advantages that:
(1) according to the invention, the stone powder with the mass percent of 40-70% is adopted to manufacture the composite mortar, so that the investment of mineral raw materials is effectively reduced, and meanwhile, the industrial byproduct stone powder is used as the raw material, so that the resources are effectively saved, the energy consumption is saved, the production cost is reduced, and the energy conservation and environmental protection are realized;
(2) the process steps are simple, the construction period is effectively shortened, and the operation is easy.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The present invention will be further described below.
A mining high-strength composite mortar material is composed of the following raw materials in percentage by mass: 40-70% of stone powder, 10-40% of clinker, 3-10% of accelerating agent, 5-10% of cellulose, 2-10% of aluminum sulfate and 2-10% of water reducing agent.
Further, the paint comprises the following components in percentage by mass: 60% of stone powder, 15% of clinker, 4% of accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of water reducer.
Further, the paint comprises the following components in percentage by mass: 60% of stone powder, 22% of clinker, 3% of accelerator, 6% of cellulose, 5% of aluminum sulfate and 4% of water reducer.
Further, the paint comprises the following components in percentage by mass: 55% of stone powder, 20% of cement, 4% of an accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of a water reducing agent.
Further, the paint comprises the following components in percentage by mass: 65% of stone powder, 17% of cement, 5% of an accelerator, 6% of cellulose, 4% of aluminum sulfate and 3% of a water reducing agent.
Further, the clinker is a hydraulic cementing material.
Further, the hydraulic cement comprises a shrinkage-free rapid hardening silicate clinker.
Further, the accelerating agent is lithium hydroxide.
Further, the particle size of the stone powder is less than or equal to 3 mm.
The preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and the water reducer according to corresponding proportions;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. 1/2, mixing the mixture A, 1/2, the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 of the mixture A and the rest 1/2 of the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 12-16min at a stirring speed of 80-100 r/min;
f. and e, after stirring is finished, packaging the material obtained in the step e to obtain a finished product.
The embodiment I provides a mining high-strength composite mortar material, which comprises the following raw materials in percentage by mass: 65% of stone powder, 20% of cement, 3% of an accelerator, 5% of cellulose, 3% of aluminum sulfate and 4% of a water reducing agent, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting residual waste materials of industrial byproducts, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and the water reducer as ingredients;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. 1/2, mixing the mixture A, 1/2, the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 of the mixture A and the rest 1/2 of the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 12min at a stirring speed of 80 r/min;
f. and e, after stirring is finished, packaging the materials obtained in the step e to obtain a finished product, wherein the materials after stirring can be packaged in bags.
The second embodiment is a mining high-strength composite mortar material, which is composed of the following raw materials in percentage by mass: 50% of stone powder, 30% of cement, 5% of an accelerator, 5% of cellulose, 5% of aluminum sulfate and 5% of a water reducing agent, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting residual waste materials of industrial byproducts, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and the water reducer as ingredients;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. mixing 1/2 the mixture A, 1/2 the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 the mixture A and 1/2 the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 16min at a stirring speed of 100 r/min;
f. and e, after stirring is finished, packaging the materials obtained in the step e to obtain a finished product, wherein the materials after stirring can be packaged in bags.
The third embodiment provides a mining high-strength composite mortar material, which is composed of the following raw materials in percentage by mass: 60% of stone powder, 15% of clinker, 4% of accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of water reducer, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting the residual waste of industrial by-products, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and the water reducer as ingredients;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. 1/2, mixing the mixture A, 1/2, the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 of the mixture A and the rest 1/2 of the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 16min at the stirring speed of 90 r/min;
f. and e, after stirring is finished, packaging the materials obtained in the step e to obtain a finished product, wherein the materials after stirring can be packaged in bags.
The performance parameters of the mining high-strength composite mortar material described in the third embodiment are determined as follows: the determination method adopts the conventional method in the field to determine the compressive strength and the flexural strength, and the determination result is shown in the following table one:
| categories | Technical parameters |
| 3 day compressive strength | 10.1MPa |
| Compressive strength of 7 days | 32.6MPa |
| 28 day compressive strength | 39.8MPa |
| 3 days rupture strength | 2.2MPa |
| 7 days rupture strength | 4.7MPa |
| 28 days rupture strength | 6.3MPa |
Watch 1
The composite mortar prepared by the invention has good physical properties, can fully utilize industrial byproducts under the condition of good compressive strength and flexural strength, realizes waste utilization, and effectively saves resources.
The embodiment four provides a mining high-strength composite mortar material, which comprises the following raw materials in percentage by mass: 70% of stone powder, 12% of clinker, 3% of accelerator, 6% of cellulose, 5% of aluminum sulfate and 4% of water reducer, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting the residual waste of industrial by-products, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and the water reducer as ingredients;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. 1/2, mixing the mixture A, 1/2, the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 of the mixture A and the rest 1/2 of the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 13min at the stirring speed of 85 r/min;
f. and e, after stirring is finished, packaging the materials obtained in the step e to obtain a finished product, wherein the materials after stirring can be packaged in bags.
The performance parameters of the mining high-strength composite mortar material described in example four were determined as follows: the determination method adopts the conventional method in the field to determine the compressive strength and the flexural strength, and the determination results are shown in the following table II:
| categories | Technical parameters |
| 3 day compressive strength | 9.5MPa |
| Compressive strength of 7 days | 30.8MPa |
| 28 day compressive strength | 36.7MPa |
| 3 days rupture strength | 2.0MPa |
| 7 days rupture strength | 4.3MPa |
| 28 days rupture strength | 5.6MPa |
Watch two
The composite mortar prepared by the invention has good physical properties, can fully utilize industrial byproducts under the condition of good compressive strength and flexural strength, realizes waste utilization, and effectively saves resources.
The measurement results of the technical solutions of the first, second, third and fourth embodiments on the compressive strength, the flexural strength, the setting time and the particle size are as follows:
| categories | Technical parameters |
| 3 day compressive strength | ≧7.8MPa |
| Compressive strength of 7 days | ≧28.2MPa |
| 28 day compressive strength | ≧32MPa |
| 3 days rupture strength | ≧1.8MPa |
| 7 days rupture strength | ≧4.6MPa |
| 28 days rupture strength | ≧6.0MPa |
| Coagulation time | 4-8min |
| Particle size | 3mm |
Watch III
The composite mortar prepared by the invention has good physical properties, can fully utilize industrial byproducts under the condition of good compressive strength and flexural strength, realizes waste utilization, and effectively saves resources.
The embodiment five discloses a mining high-strength composite mortar material, which is prepared from the following raw materials in percentage by mass: 40% of stone powder, 48% of clinker, 3% of accelerator, 5% of cellulose, 2% of aluminum sulfate and 2% of water reducer, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting the residual waste of industrial by-products, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing raw materials according to the required proportion;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. firstly, respectively adding 1/2 of a mixed material A and a mixed material B in a stirrer, then adding an accelerator and a water reducer, and finally respectively adding the rest 1/2 of the mixed material A and the mixed material B;
e. starting the stirrer, and fully stirring at normal temperature for 12min at the stirring speed of 80 r/min;
f. after stirring, bagging and packaging the materials to obtain a finished product.
The embodiment six provides a mining high-strength composite mortar material which is prepared from the following raw materials in percentage by mass: 45% of stone powder, 40% of cement, 2% of an accelerator, 4% of cellulose, 2% of aluminum sulfate and 5% of a water reducing agent, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting residual waste materials of industrial byproducts, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing raw materials according to the required proportion;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. firstly, respectively adding 1/2 of a mixed material A and a mixed material B in a stirrer, then adding an accelerator and a water reducer, and finally respectively adding the rest 1/2 of the mixed material A and the mixed material B;
e. starting the stirrer, and fully stirring at normal temperature for 16min at the stirring speed of 100 r/min;
f. after stirring, bagging and packaging the materials to obtain a finished product.
The embodiment seven, the mining high-strength composite mortar material comprises the following raw materials in percentage by mass: 60% of stone powder, 15% of clinker, 4% of accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of water reducer, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting the residual waste of industrial by-products, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing raw materials according to the required proportion;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. firstly, respectively adding 1/2 of a mixed material A and a mixed material B in a stirrer, then adding an accelerator and a water reducer, and finally respectively adding the rest 1/2 of the mixed material A and the mixed material B;
e. starting the stirrer, and fully stirring at normal temperature for 16min at the stirring speed of 90 r/min;
the performance parameters of the mining high-strength composite mortar material described in example seven were determined as follows: the determination method adopts the conventional method in the field to determine the compressive strength and the flexural strength, and the determination result is shown in the fourth table:
watch four
The composite mortar prepared by the invention has good physical properties, can fully utilize industrial byproducts under the condition of good compressive strength and flexural strength, realizes waste utilization, and effectively saves resources.
The embodiment eight, the mining high-strength composite mortar material comprises the following raw materials in percentage by mass: 70% of stone powder, 18% of clinker, 3% of accelerator, 1% of cellulose, 5% of aluminum sulfate and 4% of water reducer, wherein the particle size of the stone powder is less than or equal to 3 mm, and the stone powder can be obtained by collecting the residual waste of industrial by-products, and the preparation method of the mining high-strength composite mortar material comprises the following steps:
a. preparing raw materials according to the required proportion;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. firstly, respectively adding 1/2 of a mixed material A and a mixed material B in a stirrer, then adding an accelerator and a water reducer, and finally respectively adding the rest 1/2 of the mixed material A and the mixed material B;
e. starting the stirrer, and fully stirring at normal temperature for 13min at the stirring speed of 85 r/min;
f. after stirring, bagging and packaging the materials to obtain a finished product.
The performance parameters of the mining high-strength composite mortar material described in example eight are determined as follows: the determination method adopts the conventional method in the field to determine the compressive strength and the flexural strength, and the determination results are shown in the fifth table:
watch five
The composite mortar prepared by the invention has good physical properties, can fully utilize industrial byproducts under the condition of good compressive strength and flexural strength, realizes waste utilization, and effectively saves resources.
The measurement results of the technical solutions of the fifth embodiment, the sixth embodiment, the seventh embodiment and the eighth embodiment on the compressive strength, the flexural strength, the setting time and the particle size are shown in the sixth table:
| categories | Technical parameters |
| 3 day compressive strength | ≧7.8MPa |
| Compressive strength of 7 days | ≧28.2MPa |
| 28 day compressive strength | ≧32MPa |
| 3 days rupture strength | ≧1.8MPa |
| 7 days rupture strength | ≧4.6MPa |
| 28 days rupture strength | ≧6.0MPa |
| Coagulation time | 4-8min |
| Particle size | 3mm |
Watch six
The composite mortar prepared by the invention has good physical properties, can fully utilize industrial byproducts under the condition of good compressive strength and flexural strength, realizes waste utilization, and effectively saves resources.
The technical scheme of the invention is explained in detail above, the technical scheme of the invention provides a novel high-strength composite mortar material for mines and a preparation method thereof, the composite mortar prepared according to the invention has the effects of high compressive strength, strong impact resistance and quick setting, 40-70% of stone powder by mass is adopted to prepare the composite mortar, the investment of mineral raw materials is effectively reduced, and meanwhile, the stone powder which is an industrial byproduct is used as the raw material, so that the resources are effectively saved, the energy consumption is saved, the production cost is reduced, and the energy conservation and environmental protection are realized; the process steps are simple, the construction period is effectively shortened, and the operation is easy.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. The mining high-strength composite mortar material is characterized by comprising the following raw materials in percentage by mass: 40-70% of stone powder, 10-40% of clinker, 3-10% of accelerating agent, 5-10% of cellulose, 2-10% of aluminum sulfate and 2-10% of water reducing agent.
2. The mining high-strength composite mortar material according to claim 1, which is characterized by comprising the following components in percentage by mass: 60% of stone powder, 15% of clinker, 4% of accelerator, 5% of cellulose, 8% of aluminum sulfate and 8% of water reducer.
3. The mining high-strength composite mortar material according to claim 1, which is characterized by comprising the following components in percentage by mass: 60% of stone powder, 22% of clinker, 3% of accelerator, 6% of cellulose, 5% of aluminum sulfate and 4% of water reducer.
4. The mining high-strength composite mortar material according to claim 1, wherein the clinker is a hydraulic binder.
5. The mining high-strength composite mortar material according to claim 4, characterized in that the hydraulic binder comprises a shrinkage-free rapid hardening silicate clinker.
6. The mining high-strength composite mortar material according to claim 1, wherein the accelerating agent is lithium hydroxide.
7. The mining high-strength composite mortar material according to claim 1, wherein the particle size of the stone powder is less than or equal to 3 mm.
8. The preparation method of the mining high-strength composite mortar material according to any one of claims 1 to 7, characterized by comprising the following steps:
a. preparing the stone powder, the clinker, the accelerator, the cellulose, the aluminum sulfate and the water reducer according to the mass percentage;
b. mixing the clinker and the cellulose to obtain a mixed material A;
c. mixing the stone powder and the aluminum sulfate to obtain a mixed material B;
d. 1/2, mixing the mixture A, 1/2, the mixture B, the accelerator and the water reducer to obtain a mixture C, and mixing the rest 1/2 of the mixture A and the rest 1/2 of the mixture B to obtain a mixture D;
e. adding the mixture C and the mixture D into a stirrer in sequence, and fully stirring at normal temperature for 12-16min at a stirring speed of 80-100 r/min;
f. and e, after stirring is finished, packaging the material obtained in the step e to obtain a finished product.
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| CN107793114A (en) * | 2017-11-21 | 2018-03-13 | 淮南久辉工贸有限责任公司 | A kind of mining inorganic injection composite mortar and preparation method thereof |
| CN108117356A (en) * | 2017-12-21 | 2018-06-05 | 铜陵化学工业集团有限公司 | A kind of industrial waste high intensity dry-mixed mortar |
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