CN112830731A - Dry-mixed mortar and preparation method thereof - Google Patents
Dry-mixed mortar and preparation method thereof Download PDFInfo
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- CN112830731A CN112830731A CN202110065598.2A CN202110065598A CN112830731A CN 112830731 A CN112830731 A CN 112830731A CN 202110065598 A CN202110065598 A CN 202110065598A CN 112830731 A CN112830731 A CN 112830731A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/10—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of rotary members, e.g. inclinable screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses dry-mixed mortar, which comprises ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder, short carbon fiber, citric acid slag powder, a polymer, a polycarboxylic acid water reducing agent, etherified starch and thickening powder, and the dry-mixed mortar comprises the following components in parts by weight: 90-110 parts of ordinary portland cement, 30-50 parts of fly ash, 8-10 parts of pyroxene powder, 720-840 parts of quartz sand, 3-5 parts of ilmenite powder, 6-8 parts of sepiolite powder, 2-3 parts of short carbon fiber, 12-15 parts of citric acid residue powder, 10-30 parts of polymer, 0.5-1.0 part of polycarboxylic acid water reducer, 0.3-0.5 part of etherified starch and 3-5 parts of thickening powder. The prepared dry-mixed mortar has good crack resistance and strong water-retaining effect, and can not cause flying of raw material dust when stirring the raw materials and is convenient for quick discharging.
Description
Technical Field
The invention relates to the technical field related to dry-mixed mortar, in particular to dry-mixed mortar and a preparation method thereof.
Background
The mortar is one of materials commonly used in construction engineering, wherein the dry powder mortar refers to a granular or powdery material formed by physically mixing dry-screened aggregate (such as quartz sand), inorganic cementing material (such as cement), additive (such as polymer) and the like according to a certain proportion, and is used for construction of construction engineering, but the existing dry-mixed mortar and the preparation method of the dry-mixed mortar in the market still have certain defects, such as:
the dry-mixed mortar prepared by the existing dry-mixed mortar preparation method has poor crack resistance, the dry-mixed mortar prepared by the common dry-mixed mortar preparation method has poor water retention effect, and the raw material dust is easy to fly and the material is inconvenient to discharge quickly when the raw materials are stirred during the preparation of the dry-mixed mortar, so that the dry-mixed mortar and the preparation method thereof are provided, so as to solve the problems provided in the prior art.
Disclosure of Invention
The invention aims to provide dry-mixed mortar and a preparation method thereof, and aims to solve the problems that the dry-mixed mortar prepared by most of the preparation methods of the dry-mixed mortar in the background art is poor in crack resistance, the prepared dry-mixed mortar is poor in water retention effect, and in the process of preparing the dry-mixed mortar, raw material dust is easy to fly and quick discharging is inconvenient to carry out when raw materials are stirred.
In order to achieve the purpose, the invention provides the following technical scheme: the dry-mixed mortar comprises ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder, chopped carbon fibers, citric acid slag powder, a polymer, a polycarboxylic acid water reducing agent, etherified starch and thickening powder, and comprises the following components in parts by weight: 90-110 parts of ordinary portland cement, 30-50 parts of fly ash, 8-10 parts of pyroxene powder, 720-840 parts of quartz sand, 3-5 parts of ilmenite powder, 6-8 parts of sepiolite powder, 2-3 parts of short carbon fiber, 12-15 parts of citric acid residue powder, 10-30 parts of polymer, 0.5-1.0 part of polycarboxylic acid water reducer, 0.3-0.5 part of etherified starch and 3-5 parts of thickening powder.
A preparation method of dry-mixed mortar comprises the following steps:
the method comprises the following steps: adding ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder and citric acid slag powder into a three-pass dryer for drying treatment, and then adding into a dry powder stirrer for uniform stirring;
step two: adding chopped carbon fibers and a polymer into the mixture obtained in the step one, and uniformly stirring;
step three: adding etherified starch, thickening powder and a polycarboxylic acid water reducing agent into a V-shaped high-efficiency stirrer, and uniformly stirring;
step four: and adding the mixture obtained in the third step into the mixture obtained in the second step, uniformly stirring, metering and packaging.
Preferably, the parts by weight of the ordinary portland cement, the fly ash, the pyroxene powder, the quartz sand, the ilmenite powder, the sepiolite powder and the citric acid slag powder in the first step are respectively as follows: 95 parts of ordinary portland cement, 45 parts of fly ash, 8 parts of diabase powder, 780 parts of quartz sand, 5 parts of ilmenite powder, 6 parts of sepiolite powder and 12 parts of citric acid slag powder.
Preferably, the weight parts of the chopped carbon fibers and the polymer in the second step are respectively as follows: 3 parts of chopped carbon fibers and 20 parts of polymer.
Preferably, the etherified starch, the thickening powder and the polycarboxylic acid water reducing agent in the step three respectively comprise the following components in parts by weight: 0.5 part of etherified starch, 5 parts of thickening powder and 1.2 parts of polycarboxylic acid water reducing agent.
Preferably, in the first step, the fineness of the fly ash is 500 meshes, the fineness of the diabase is 400 meshes, the fineness of the quartz sand is 80 meshes, the fineness of the ilmenite powder is 120 meshes, the fineness of the citric acid residue is 325 meshes, and the fineness of the sepiolite powder is 200 meshes.
Preferably, dry powder mixer in step one includes organism and discharging pipe, the left end of organism is connected with last workbin through feeding device, and the top of going up the workbin is provided with the dust guard to the spring is installed to the lower extreme of dust guard, the discharging pipe sets up the below right-hand member at the organism, and the lower extreme of discharging pipe is connected with sealed lid, the internally mounted of discharging pipe has the puddler, and the right-hand member of puddler is connected with servo motor's output.
Preferably, the dust guard is provided with 2 groups at the upper end of the machine body symmetrically, the dust guard and the machine body form a telescopic structure, and the dust guard is of a rotating structure on the machine body.
Preferably, the horizontal axis of puddler sets up with the vertical axis of discharging pipe is perpendicular, and the puddler is revolution mechanic in the inside of discharging pipe to the lower extreme and the sealed threaded connection that covers of discharging pipe.
Compared with the prior art, the invention has the beneficial effects that: the dry-mixed mortar and the preparation method thereof have the advantages that the prepared dry-mixed mortar has good crack resistance, the prepared dry-mixed mortar has strong water-retaining effect, and in the process of preparing the dry-mixed mortar, the raw material dust can not fly when the raw materials are stirred, and the quick discharging is convenient.
Drawings
FIG. 1 is a front view of the body of the present invention;
FIG. 2 is a schematic structural view of a top material box in elevation section according to the present invention;
FIG. 3 is a schematic sectional view of the tapping pipe according to the invention in elevation.
In the figure: 1. a body; 2. a feeding device; 3. feeding a material box; 4. a dust-proof plate; 5. a spring; 6. a discharge pipe; 7. a sealing cover; 8. a stirring rod; 9. a servo motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the dry-mixed mortar comprises ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder, chopped carbon fibers, citric acid slag powder, a polymer, a polycarboxylic acid water reducing agent, etherified starch and thickening powder, and comprises the following components in parts by weight: 90-110 parts of ordinary portland cement, 30-50 parts of fly ash, 8-10 parts of pyroxene powder, 720-840 parts of quartz sand, 3-5 parts of ilmenite powder, 6-8 parts of sepiolite powder, 2-3 parts of short carbon fiber, 12-15 parts of citric acid residue powder, 10-30 parts of polymer, 0.5-1.0 part of polycarboxylic acid water reducer, 0.3-0.5 part of etherified starch and 3-5 parts of thickening powder.
A preparation method of dry-mixed mortar comprises the following steps:
the method comprises the following steps: adding ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder and citric acid slag powder into a three-pass dryer for drying treatment, and then adding into a dry powder stirrer for uniform stirring;
step two: adding chopped carbon fibers and a polymer into the mixture obtained in the step one, and uniformly stirring;
step three: adding etherified starch, thickening powder and a polycarboxylic acid water reducing agent into a V-shaped high-efficiency stirrer, and uniformly stirring;
step four: and adding the mixture obtained in the third step into the mixture obtained in the second step, uniformly stirring, metering and packaging.
The invention further provides that in the first step, the ordinary portland cement, the fly ash, the pyroxene powder, the quartz sand, the ilmenite powder, the sepiolite powder and the citric acid residue powder are respectively in parts by weight: 95 parts of ordinary portland cement, 45 parts of fly ash, 8 parts of diabase powder, 780 parts of quartz sand, 5 parts of ilmenite powder, 6 parts of sepiolite powder and 12 parts of citric acid slag powder.
The invention further provides a method for preparing the chopped carbon fiber, which comprises the following steps of: 3 parts of chopped carbon fibers and 20 parts of polymer.
The invention further comprises the following steps of: 0.5 part of etherified starch, 5 parts of thickening powder and 1.2 parts of polycarboxylic acid water reducing agent.
The invention further comprises a step of grinding the fly ash to 500 meshes, the diabase to 400 meshes, the quartz sand to 80 meshes, the ilmenite to 120 meshes, the citric acid residue to 325 meshes and the sepiolite to 200 meshes.
The invention further discloses a dry powder stirrer in the first step, which comprises a machine body 1, a material conveying device 2, a material loading box 3, a dustproof plate 4, a spring 5, a material discharging pipe 6, a sealing cover 7, a stirring rod 8 and a servo motor 9, wherein the left end of the machine body 1 is connected with the material loading box 3 through the material conveying device 2, the dustproof plate 4 is arranged above the material loading box 3, the spring 5 is arranged at the lower end of the dustproof plate 4, the material discharging pipe 6 is arranged at the right end below the machine body 1, the sealing cover 7 is connected to the lower end of the material discharging pipe 6, the stirring rod 8 is arranged inside the material discharging pipe 6, and the right end of the stirring rod 8 is connected with the output end of the servo motor 9.
Furthermore, 2 groups of dust-proof plates 4 are symmetrically arranged at the upper end of the machine body 1, the dust-proof plates 4 and the machine body 1 form a telescopic structure, and the dust-proof plates 4 are in a rotating structure on the machine body 1.
Furthermore, the transverse central axis of the stirring rod 8 is perpendicular to the vertical central axis of the discharge pipe 6, the stirring rod 8 is of a rotating structure inside the discharge pipe 6, and the lower end of the discharge pipe 6 is in threaded connection with the sealing cover 7.
Example (b):
the method comprises the following steps: adding 95 parts of ordinary portland cement, 45 parts of fly ash, 8 parts of diabase powder, 780 parts of quartz sand, 5 parts of ilmenite powder, 6 parts of sepiolite powder and 12 parts of citric acid slag powder into a three-pass dryer for drying treatment, and then adding into a dry powder stirrer for uniform stirring, wherein the second step is as follows: adding 3 parts of chopped carbon fibers and 20 parts of polymer into the mixture obtained in the first step, and uniformly stirring, wherein the third step is as follows: adding 0.5 part of etherified starch, 5 parts of thickening powder and 1.2 parts of polycarboxylic acid water reducing agent into a V-shaped efficient stirrer, and uniformly stirring, wherein the step four is as follows: adding the mixture obtained in the third step into the mixture obtained in the second step, uniformly stirring, metering and packaging;
wherein, when ordinary portland cement, fly ash, pyroxene powder, quartz sand, ilmenite powder, sepiolite powder and citric acid slag powder are uniformly stirred by a dry powder stirrer, the materials are firstly put into the feeding box 3, because the upper end of the feeding box 3 is provided with the dust guard 4, when the materials are fed, the materials extrude the dust guard 4, so that the upper end of the feeding box 3 is opened, the materials enter the inside of the feeding box 3, at the moment, the dust guard 4 recovers the original position under the action of the spring 5, the dust guard 4 seals the upper end of the feeding box 3, the dust of the materials is prevented from flying upwards, when the materials are discharged, the sealing cover 7 is firstly unscrewed, the materials are output through the discharging pipe 6, the servo motor 9 is started, the servo motor 9 drives the stirring rod 8 to rotate, so that the stirring rod 8 stirs the discharging pipe inside the discharging pipe 6, and the blockage of the materials inside the discharging pipe 6 is prevented, is convenient for quick and uniform discharging.
Claims (9)
1. A dry-mixed mortar comprises ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder, chopped carbon fiber, citric acid slag powder, polymer, polycarboxylic acid water reducing agent, etherified starch and thickening powder, and is characterized in that: the dry-mixed mortar comprises the following components in parts by weight: 90-110 parts of ordinary portland cement, 30-50 parts of fly ash, 8-10 parts of pyroxene powder, 720-840 parts of quartz sand, 3-5 parts of ilmenite powder, 6-8 parts of sepiolite powder, 2-3 parts of short carbon fiber, 12-15 parts of citric acid residue powder, 10-30 parts of polymer, 0.5-1.0 part of polycarboxylic acid water reducer, 0.3-0.5 part of etherified starch and 3-5 parts of thickening powder.
2. A preparation method of dry-mixed mortar is characterized by comprising the following steps: the preparation of the dry-mixed mortar comprises the following steps:
the method comprises the following steps: adding ordinary portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder and citric acid slag powder into a three-pass dryer for drying treatment, and then adding into a dry powder stirrer for uniform stirring;
step two: adding chopped carbon fibers and a polymer into the mixture obtained in the step one, and uniformly stirring;
step three: adding etherified starch, thickening powder and a polycarboxylic acid water reducing agent into a V-shaped high-efficiency stirrer, and uniformly stirring;
step four: and adding the mixture obtained in the third step into the mixture obtained in the second step, uniformly stirring, metering and packaging.
3. The method for preparing a dry-mixed mortar according to claim 2, wherein the method comprises the following steps: the parts by weight of the ordinary portland cement, the fly ash, the diabase powder, the quartz sand, the ilmenite powder, the sepiolite powder and the citric acid slag powder in the step one are respectively as follows: 95 parts of ordinary portland cement, 45 parts of fly ash, 8 parts of diabase powder, 780 parts of quartz sand, 5 parts of ilmenite powder, 6 parts of sepiolite powder and 12 parts of citric acid slag powder.
4. The method for preparing a dry-mixed mortar according to claim 2, wherein the method comprises the following steps: in the second step, the weight parts of the chopped carbon fibers and the polymer are respectively as follows: 3 parts of chopped carbon fibers and 20 parts of polymer.
5. The method for preparing a dry-mixed mortar according to claim 2, wherein the method comprises the following steps: the etherified starch, the thickening powder and the polycarboxylic acid water reducing agent in the step three are respectively in parts by weight: 0.5 part of etherified starch, 5 parts of thickening powder and 1.2 parts of polycarboxylic acid water reducing agent.
6. The method for preparing a dry-mixed mortar according to claim 2, wherein the method comprises the following steps: in the first step, the fineness of the fly ash is 500 meshes, the fineness of the diabase is 400 meshes, the fineness of the quartz sand is 80 meshes, the fineness of the ilmenite powder is 120 meshes, the fineness of the citric acid residue is 325 meshes, and the fineness of the sepiolite powder is 200 meshes.
7. The method for preparing a dry-mixed mortar according to claim 2, wherein the method comprises the following steps: the dry powder stirring machine in the first step comprises a machine body (1) and a discharging pipe (6), the left end of the machine body (1) is connected with an upper material box (3) through a material conveying device (2), a dust guard (4) is arranged above the upper material box (3), a spring (5) is installed at the lower end of the dust guard (4), the discharging pipe (6) is arranged at the right end of the lower portion of the machine body (1), a sealing cover (7) is connected to the lower end of the discharging pipe (6), a stirring rod (8) is installed inside the discharging pipe (6), and the right end of the stirring rod (8) is connected with the output end of a servo motor (9).
8. The method for preparing a dry-mixed mortar according to claim 7, wherein the method comprises the following steps: the dustproof plate (4) is symmetrically provided with 2 groups at the upper end of the machine body (1), the dustproof plate (4) and the machine body (1) form a telescopic structure, and the dustproof plate (4) is of a rotating structure on the machine body (1).
9. The method for preparing a dry-mixed mortar according to claim 7, wherein the method comprises the following steps: the horizontal axis of puddler (8) sets up with the vertical axis of discharging pipe (6) is perpendicular, and puddler (8) are revolution mechanic in the inside of discharging pipe (6) to the lower extreme and the sealed lid (7) threaded connection of discharging pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110065598.2A CN112830731A (en) | 2021-01-19 | 2021-01-19 | Dry-mixed mortar and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110065598.2A CN112830731A (en) | 2021-01-19 | 2021-01-19 | Dry-mixed mortar and preparation method thereof |
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Cited By (2)
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| CN113400463A (en) * | 2021-07-06 | 2021-09-17 | 吉林安装集团股份有限公司 | Anti-crack mortar construction system equipment and process thereof |
| CN115466077A (en) * | 2022-09-14 | 2022-12-13 | 厦门杰质建材有限公司 | High-performance phosphogypsum self-leveling agent and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113400463A (en) * | 2021-07-06 | 2021-09-17 | 吉林安装集团股份有限公司 | Anti-crack mortar construction system equipment and process thereof |
| CN115466077A (en) * | 2022-09-14 | 2022-12-13 | 厦门杰质建材有限公司 | High-performance phosphogypsum self-leveling agent and use method thereof |
| CN115466077B (en) * | 2022-09-14 | 2023-09-22 | 厦门杰质建材有限公司 | High-performance phosphogypsum self-leveling agent and application method thereof |
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