CN115010429A - Mortar material suitable for robot brick laying and preparation method thereof - Google Patents

Mortar material suitable for robot brick laying and preparation method thereof Download PDF

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Publication number
CN115010429A
CN115010429A CN202210604886.5A CN202210604886A CN115010429A CN 115010429 A CN115010429 A CN 115010429A CN 202210604886 A CN202210604886 A CN 202210604886A CN 115010429 A CN115010429 A CN 115010429A
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China
Prior art keywords
mortar
mixed
cement
parts
mortar material
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CN202210604886.5A
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Chinese (zh)
Inventor
袁烽
宋泽胤
骆稼祥
高天轶
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Shanghai Yizao Technology Co ltd
Tongji University
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Shanghai Yizao Technology Co ltd
Tongji University
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Priority to CN202210604886.5A priority Critical patent/CN115010429A/en
Publication of CN115010429A publication Critical patent/CN115010429A/en
Pending legal-status Critical Current

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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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/06—Quartz; Sand
    • 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
    • C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B16/04—Macromolecular compounds
    • C04B16/06—Macromolecular compounds fibrous
    • C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B16/0625—Polyalkenes, e.g. polyethylene
    • C04B16/0633—Polypropylene
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/146—Silica fume
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/38—Polysaccharides or derivatives thereof
    • C04B24/383—Cellulose or derivatives thereof
    • 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
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/2023—Resistance against alkali-aggregate reaction
    • 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
    • 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

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

Abstract

The invention discloses a mortar material suitable for robot brick laying and a preparation method thereof. The mortar material comprises the following raw materials in parts by weight: 8-26 parts of cement, 30-40 parts of dry-mixed mortar, 0.13-1.3 parts of cellulose, 0.1-1 part of redispersible latex powder, 0.8-1.2 parts of silica fume, 0.2-0.4 part of cement alkali inhibitor and 6-7 parts of water. The mortar material disclosed by the invention improves the bonding capacity and the pressure resistance of the mortar material through the reasonable proportion of cement, dry-mixed mortar, cellulose, redispersible latex powder, silica fume, a cement alkali inhibitor and water, has good pumping performance, and is suitable for being used for building bricks by robots.

Description

Mortar material suitable for robot brick laying and preparation method thereof
Technical Field
The invention relates to a mortar material suitable for robot brick laying and a preparation method thereof, belonging to the technical field of building materials.
Background
The masonry structure has the characteristics of higher strength and better durability compared with a wood structure, so that buildings built by the masonry structure have a long history and a large number in China.
The robot brick structure is used as a new technology for replacing the traditional manual brick laying process, and has the advantages of low time cost, high precision and the like. The connection mode and the space development direction among the brick bodies are changed based on the material characteristics of the unit brick bodies which are uniformly distributed, and more possibilities on structural performance are searched in the traditional method. The building of the brick wall in the blocks is realized step by step, and finally a stable and continuous brick wall sequence with strong visual impact is formed by splicing, so that the texture of the vertical face and the building quality are improved in scale and material process, and the association of site psychoplasty and environmental vein is realized. And the method is suitable for various different on-site construction conditions, and can accurately meet the construction requirements of the customized brick wall.
The masonry mortar is an important component of masonry, plays roles of bonding, lining and force transmission in a masonry structure, is a building product containing a cementing material (lime or cement), an aggregate (natural sand), an additive and an admixture, is formed by adding water into the materials and stirring, meets different compressive strength requirements, and has certain heat preservation and heat insulation properties. Its properties include workability, strength and cohesive force, and its performance indexes include mixing ratio, sand consistency, water-retaining property, layering degree and strength grade. These can all cause decisive influence to the brick structure process and the structural performance after whole wall shaping.
The existing masonry mortar can be roughly divided into three types due to different used raw materials, and the main raw materials of the cement mortar are cement and sand, so that the strength is high, but the workability is poor; the main raw materials of the lime mortar are lime and sand, the strength is low, but the workability is good, and the lime mortar can only be used for temporary building walls with low strength requirements; the cement lime mixed mortar has high strength and good workability, is a main mortar source for building various walls at present, but has the problems of height error, insufficient bonding strength and process adaptability caused by materials, environmental factors or equipment shaking in the mechanical arm building.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the mortar material suitable for the brick laying of the robot and the preparation method thereof, which can realize continuous pumping transportation, stable extrusion and firm bonding of the mortar, improve the masonry efficiency of the robot and meet the requirements of beauty and strength of brick walls, so that the digital masonry of the brick walls by the robot can be efficiently applied to large-scale industrial production.
The invention is realized by the following technical scheme:
a mortar material suitable for robot brick laying comprises the following raw materials in parts by weight: 8-26 parts of cement, 30-40 parts of dry-mixed mortar, 0.13-1.3 parts of cellulose, 0.1-1 part of redispersible latex powder, 0.8-1.2 parts of silica fume, 0.2-0.4 part of cement alkali inhibitor and 6-7 parts of water.
Wherein the cement is ordinary silicic acid cement, and the type of the ordinary silicic acid cement is PO42.5 or PO 52.5.
Wherein the dry-mixed mortar is DM15 dry-mixed masonry mortar; the sand grain size and the aggregate grain size are screened to different degrees according to the height requirement of a mortar layer. The 4mm mortar layer is made of fine sand with the sand grain diameter of 0.25mm, and the caliber of the stone aggregate filter screen is less than 2 mm; the 6mm mortar layer is made of medium sand with the sand grain diameter of 0.5mm and the aperture of the stone aggregate filter screen of less than 3 mm; the mortar layer with the thickness of 8mm is selected from medium sand with the sand grain diameter of 1mm, and the aperture of a stone aggregate filter screen is less than 4 mm; the mortar layer with the thickness of 10mm is coarse sand with the sand grain diameter of 2mm, and the aperture of a stone aggregate filter screen is less than 5 mm; the mortar layer of 12mm is coarse sand with sand grain diameter of 2mm and stone aggregate filter screen caliber of less than 6mm, as shown in table 1.
TABLE 1 Sand particle size and aggregate particle size corresponding to mortar bed height
Height of mortar layer 4mm 6mm 8mm 10mm 12mm
Sand type Fine sand Medium sand Medium sand Coarse sand Coarse sand
Particle size of sand 0.25mm 0.5mm 1mm 2mm 2mm
Orthopedic filter screen caliber ﹤2mm ﹤3mm ﹤4mm ﹤5mm ﹤6mm
Wherein the cellulose is prepared from the following raw materials in percentage by weight: 80-90% of hydroxypropyl methyl cellulose and 10-20% of polypropylene anti-crack fiber; wherein, the hydroxypropyl methyl cellulose has 20 ten thousand of viscosity, and the length of the polypropylene anti-crack fiber is 10-15 mm.
Wherein the redispersible latex powder is a German Wacker VINNAPAS product with the product number of 5010N.
Wherein the particle size of the silica fume is 80-90% of that of 0.5-1 μm; the content of SiO2 in the silica fume is 90-95%.
The cement alkali inhibitor is a product of Beijing Wauter building materials company, and the concrete types are as follows: and (3) an alkali inhibitor QC1711 for cement.
A preparation method of a mortar material suitable for robot brick laying comprises the following steps:
(1) weighing and mixing cement, dry-mixed mortar, cellulose, silica fume and an alkali inhibitor according to a ratio to obtain a mixed material;
(2) weighing and stirring the redispersible latex powder and water according to a ratio to obtain a mixed emulsion;
(3) pre-stirring the obtained mixed material, adding the mixed emulsion, stirring for about 180s, and stirring to obtain a mortar material; and then adding the mortar material into a mortar machine for pumping test.
The invention achieves the following beneficial effects:
the mortar material improves the bonding capability and the pressure resistance capability of the mortar material through the reasonable proportion of the cement, the dry-mixed mortar, the cellulose, the redispersible latex powder, the silica fume, the cement alkali inhibitor and the water, has good pumping performance, and is suitable for being used for building bricks by robots.
The preparation method is simple, the mixed materials and the mixed emulsion are uniformly stirred, the functions of all the components are exerted, and the mortar material suitable for the brick laying of the robot is obtained.
The cellulose of the invention increases the water retention rate of the mixed mortar, and effectively improves the water retention property of the mixed mortar, thereby improving the bonding capability of the mixed mortar to bricks and further improving the pressure resistance; meanwhile, due to the addition of the cellulose, the mixed mortar has good pumping performance, the hollowing phenomenon after the mortar enters the mortar pipe is reduced, and the stability of the amount of the mortar extruded from each mortar point position when the robot executes a mortar extrusion command is improved;
the redispersible latex powder is added into the mixed mortar, the redispersible latex powder can form emulsion in the process of adding water and stirring, and is uniformly dispersed in the mixed mortar, polymer particles in the emulsion can be gradually deposited on the surface of the mixed mortar in the process of hydrating the mixed mortar, the polymer particles can be mutually fused and connected together to form a polymer film along with the reduction of free water in the mixed mortar, the polymer film forms a continuous network structure and is mutually interwoven with the mixed mortar, and the polymer film can increase the contact area among different components in the mixed mortar, improve the cohesiveness of the mixed mortar and bricks, and improve the flexural strength of the mixed mortar;
the silica fume can fill gaps among cement mortars according to the particle size characteristics of the materials, and simultaneously generates a gelled body with hydrate, thereby increasing the compactness of mixed mortar, improving the shock resistance and wear resistance, and remarkably improving the problem of sedimentation generated by the compression of a fluid layer, namely a mortar layer, caused by the fact that a masonry layer is pressed by a tool head of a mechanical arm in the masonry process of the robot; the bonding strength and the crack resistance of the dry-mixed masonry mortar;
the cement alkali inhibitor contains amorphous high-activity silicon oxide and high-adsorbent materials, can obviously reduce the content of free calcium hydroxide in materials when added into mixed mortar, and plays a role in inhibiting the generation of the surface whiskering phenomenon of cement mortar, thereby solving the whiskering problem of the masonry wall body of the robot from the production end.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
A mortar material suitable for robot brick laying is prepared by dry mixing the following raw material components: 8Kg of P.O42.5 grade ordinary portland cement, 1530 Kg of dry-mixed mortar DM (medium sand, sand with the grain diameter of 0.5mm and a filter screen of 3 mm), 20 Kg of hydroxypropyl methyl cellulose with the viscosity of 0.1Kg, 0.03Kg of polypropylene anti-crack fiber, 0.8Kg of silica fume and 10.2kg of cement alkali inhibitor are mixed to obtain mixed powder; 0.1Kg of redispersible latex powder 5010N and 6.7Kg of water.
A preparation method of a mortar material suitable for robot brick laying comprises the following steps:
(1) weighing and mixing cement, dry-mixed mortar, cellulose, silica fume and an alkali inhibitor according to a ratio to obtain a mixed material;
(2) weighing and stirring the redispersible latex powder and water according to a ratio to obtain a mixed emulsion;
(3) and pre-stirring the obtained mixed material, and then adding the mixed emulsion for stirring to obtain the mortar material.
Example 2
A mortar material suitable for robot brick laying is prepared by dry mixing the following raw material components: 16Kg of PO42.5 grade ordinary portland cement, dry-mixed mortar DM 1530 Kg (medium sand, sand with the grain diameter of 0.5mm and a filter screen of 3 mm), 20 Kg of hydroxypropyl methyl cellulose with the viscosity of 1 ten thousand, 0.3Kg of polypropylene anti-cracking fiber, 0.8Kg of silica fume and 10.2kg of cement alkali inhibitor QC17110 to obtain mixed powder; redispersible latex powder 5010N 0.1Kg and water 6.7 Kg.
A preparation method of a mortar material suitable for robot brick laying comprises the following steps:
(1) weighing and mixing cement, dry-mixed mortar, cellulose, silica fume and an alkali inhibitor according to a ratio to obtain a mixed material;
(2) weighing and stirring the redispersible latex powder and water according to a ratio to obtain a mixed emulsion;
(3) and pre-stirring the obtained mixed material, and then adding the mixed emulsion for stirring to obtain the mortar material.
Example 3
A mortar material suitable for robot brick laying is prepared by dry mixing the following raw material components: 16Kg of PO42.5 grade ordinary portland cement, dry-mixed mortar DM 1540 Kg (medium sand, sand with the grain diameter of 0.5mm and a filter screen of 3 mm), 20 ten thousand of hydroxypropyl methyl cellulose with the viscosity of 0.3Kg, 0.09Kg of polypropylene anti-crack fiber, 0.8Kg of silica fume and 10.2kg of cement alkali inhibitor QC17110 to obtain mixed powder; 0.3Kg of redispersible latex powder 5010N and 6.7Kg of water.
A preparation method of a mortar material suitable for robot brick laying comprises the following steps:
(1) weighing and mixing cement, dry-mixed mortar, cellulose, silica fume and an alkali inhibitor according to a ratio to obtain a mixed material;
(2) weighing and stirring the redispersible latex powder and water according to a ratio to obtain a mixed emulsion;
(3) and pre-stirring the obtained mixed material, and then adding the mixed emulsion for stirring to obtain the mortar material.
Example 4
A mortar material suitable for robot brick laying is prepared by dry mixing the following raw material components: 16Kg of PO42.5 grade ordinary portland cement, dry-mixed mortar DM 1540 Kg (medium sand, sand with the grain diameter of 0.5mm and a filter screen of 3 mm), 20 kilomega viscosity of hydroxypropyl methyl cellulose of 0.1Kg, 0.03Kg of polypropylene anti-crack fiber, 0.8Kg of silica fume and 10.2kg of cement alkali inhibitor QC17110 to obtain mixed powder; redispersible latex powder 5010N 0.1Kg and water 6.7 Kg.
In the raw materials related to the above examples 1 to 4, the powder materials were all dried, and the water content of the dry-mixed mortar was controlled within 0.3 wt%; drying the cement, and controlling the water content of the cement within 0.3 wt%; and drying the rest small amount of the ingested powder, and controlling the water content of the fly ash within 0.3 wt%.
Comparative example 1: the difference from example 4 is that hydroxypropyl methylcellulose was not added.
Comparative example 2: the difference from example 4 is that no silica fume was added.
Comparative example 3: the difference from example 4 is that no redispersible latex powder is added.
Comparative example 4: the difference from example 4 is that no cement alkali inhibitor is added.
Comparative example 5: the difference from example 4 is that 3 times of cement is added
Comparative example 6: the difference from example 4 is that an excess of hydroxypropylmethylcellulose is added
Comparative example 7: the difference from the example 4 is that the specification of the sand in the dry-mixed mortar DM15 is changed into-fine sand, the sand grain diameter is 0.25mm, and the filter screen caliber is 2mm
Comparative example 8: the difference from the embodiment 4 is that the specification of the sand in the dry-mixed mortar DM15 is changed into medium sand, the grain diameter of the sand is 1mm, and the caliber of a filter screen is 4mm
Comparative example 9: the difference from the example 4 is that the specification of the sand in the dry-mixed mortar DM15 is changed into-coarse sand, the grain diameter of the sand is 2mm, and the aperture of the filter screen is 6mm
The robot program file output is carried out according to a model with the height of 500mm and the width of 1500mm and a wall model with the mortar joint of 6mm in the test.
Performance test was conducted on the dry-mixed masonry mortar provided in examples 1 to 4 and comparative examples 1 to 9, and the test results are shown in Table 2.
The setting time is tested according to the GB/T25181-2010 standard, and the compressive strength is measured according to the GB/T29756-2013 standard.
And the relative height difference of the model is the relative difference between the actual building completion height of the wall and the height of the model.
The settlement refers to the difference between the finished height of the wall and the height of the wall after 24 hours.
Discharging stability is that whether the phenomenon of material blocking or uneven discharging occurs in the discharging in the masonry production of the robot, the discharging is stable for 0-3 times and unstable for more than 4 times.
TABLE 2 test results of each example and comparative example
Test items Setting time (h) Compressive Strength (mpa) Model relative height difference (mm) Sedimentation (mm) Stability of discharge Efflorescence phenomenon (masonry 21 days) Adhesion Property
Example 1 5.7 22 4 2 Stabilization of Is free of Qualified
Example 2 3.2 20 -7 10 Stabilization Is free of Qualified
Example 3 5.4 21 -10 9 Stabilization Is composed of Qualified
Example 4 4.4 24 -2 1 Stabilization Is free of Qualified
Comparative example 1 3.2 25.1 39 2 Instability of the film Is free of Qualified
Comparative example 2 4.5 24.2 -7 8 Stabilization Is free of Qualified
Comparative example 3 4.0 22.1 12 5 Instability of the film Is free of Qualified
Comparative example 4 4.1 24 -3 2 Stabilization Pronounced efflorescence Qualified
Comparative example 5 2.5 16 -37 15 Stabilization Is free of Qualified
Comparative example 6 8.0 13.5 -74 35 Stabilization Is free of Fail to be qualified
Comparative example 7 4.4 22 -80 1 Stabilization Is free of Qualified
Comparative example 8 4.4 23 10 3 Stabilization Is free of Qualified
Comparative example 9 4.3 21 35 3 Stabilization Is composed of Qualified
Compared with comparative example 1, example 4 adds hydroxypropyl methylcellulose, which can be: 1. the water retention is improved, the specific gravity of water is reduced, and the water loss of mortar on bricks is reduced after the mortar is smeared on the robot. The problem of masonry bonding caused by mortar moisture loss in masonry is effectively solved 2, pumping performance is improved, hollowing of mortar in a mortar pump or a mortar pipe is reduced, and the extrusion amount of each mortar point position is stabilized. 3. The fluidity is improved, so that the mortar layer can effectively compensate the whole building height error caused by the dimension error of the brick material in the building process. Compared with the comparative example 2, the embodiment 4 increases the silica fume, improves the compactness of the mortar material, and effectively relieves the problem of sedimentation after masonry; compared with the comparative example 3, the redispersible latex powder is added in the example 4, so that the caking property of the mortar material is improved; compared with the comparative example 4, the example 4 adds the cement alkali inhibitor and improves the phenomena of the surface efflorescence of cement mortar. Compared with the embodiment 4, the comparative example 5 increases the excessive cement, the excessive cement accelerates the mortar setting time, simultaneously reduces the compressive strength of the mortar, and the requirement on the thickness of the mortar layer is difficult to guarantee. Therefore, the cement is not suitable to be excessively increased; compared with example 4, comparative example 6 increases excessive hydroxypropyl methyl cellulose, increases mortar setting time and obviously reduces compressive strength. The mortar layer thickness requirement is difficult to guarantee, so that the hydroxypropyl methyl cellulose is not suitable to be excessively increased. As can be seen from comparative examples 7 to 9, the thickness of the mortar layer is influenced by the particle size of the sand in the dry-mixed mortar, and the thicker the mortar layer set by the digital model is, the larger the granularity of the selected sand is
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The mortar material suitable for the robot brick laying is characterized by comprising the following raw materials in parts by weight: 8-16 parts of cement, 30-40 parts of dry-mixed mortar, 0.13-1.3 parts of cellulose, 0.1-1 part of redispersible latex powder, 0.8-1.2 parts of silica fume, 0.2-0.4 part of cement alkali inhibitor and 6-7 parts of water.
2. The mortar material for laying bricks by robot according to claim 1, wherein the dry-mixed mortar has a sand particle size of 0.25-2 mm.
3. The mortar material suitable for robot brick laying according to claim 1, wherein the cellulose is composed of the following raw materials by weight percent: 80-90% of hydroxypropyl methyl cellulose and 10-20% of polypropylene anti-crack fiber.
4. A mortar material suitable for use in robotic brick laying according to claim 3 wherein the hydroxypropylmethylcellulose has a viscosity of 20 amps.
5. A mortar material suitable for robotic brick laying according to claim 3 wherein the polypropylene anti-crack fibres are 10-5mm in length.
6. A mortar material suitable for use in robotic brick laying according to claim 1 wherein the silica fume has a particle size of from 0.5 to 1 μm in the range of from 80 to 90%.
7. The mortar material suitable for robot brick laying according to claim 6, wherein SiO in the silica fume 2 The content of (A) is 90-95%.
8. A method according to any one of claims 1 to 7, characterised in that it includes the steps of:
(1) weighing and mixing cement, dry-mixed mortar, cellulose, silica fume and an alkali inhibitor according to a ratio to obtain a mixed material;
(2) weighing and stirring the redispersible latex powder and water according to a ratio to obtain a mixed emulsion;
(3) and pre-stirring the obtained mixed material, and then adding the mixed emulsion for stirring to obtain the mortar material.
CN202210604886.5A 2022-05-31 2022-05-31 Mortar material suitable for robot brick laying and preparation method thereof Pending CN115010429A (en)

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Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016392A1 (en) * 1995-10-28 1997-05-09 Dennert Poraver Gmbh Pumpable class lm 21 lightweight masonry mortar
EP0839774A1 (en) * 1996-11-02 1998-05-06 DENNERT PORAVER GmbH Leightweight masonry mortar of class LM 21
CN101423364A (en) * 2008-11-26 2009-05-06 江苏省建筑工程集团有限公司 Wet mixture mortar capable of pumping
CN102199011A (en) * 2010-03-26 2011-09-28 上海宝田新型建材有限公司 Mineral powder based admixture for dry-mixed masonry mortar, preparation method and application thereof
CN102659380A (en) * 2012-05-30 2012-09-12 南京天云新型建材科技有限公司 Modified building plastering mortar for aerated concrete
CN102659366A (en) * 2012-05-30 2012-09-12 南京天云新型建材科技有限公司 Novel machine-injected mortar
CN104058688A (en) * 2014-07-01 2014-09-24 山东英才学院 High coal ash dosage I type inorganic building thermal mortar
CN104773986A (en) * 2014-12-26 2015-07-15 贵州皓科新型材料有限公司 Inorganic active heat insulation mortar and construction technology thereof
CN105859218A (en) * 2016-04-14 2016-08-17 广西横县恒丰建材有限责任公司 Premixed mechanized spraying mortar and production method thereof
CN106830822A (en) * 2017-01-13 2017-06-13 南京天云新型建材科技有限公司 A kind of modified form can machine and spray pump send mortar
CN106988544A (en) * 2017-04-26 2017-07-28 朱彦臻 A kind of intelligent bricklaying robot
CN107619239A (en) * 2017-10-23 2018-01-23 苏州大乘环保新材有限公司 Machine spray lightweight plastering mortar and preparation method thereof
CN107654077A (en) * 2017-10-19 2018-02-02 厦门华蔚物联网科技有限公司 Consider the bricklaying robot straight line wall of mortar plasticity builds algorithm by laying bricks or stones
CN107892531A (en) * 2017-10-27 2018-04-10 广西横县恒丰建材有限责任公司 The production method of tunnel cement mortar
CN107892532A (en) * 2017-10-27 2018-04-10 广西横县恒丰建材有限责任公司 High intensity is exempted to shake the production method of environmentally friendly smooth facings prefabricated component mortar
CN108863216A (en) * 2018-07-10 2018-11-23 中冶武汉冶金建筑研究院有限公司 A kind of sprayable inorganic foamed thermal insulation mortar
CN109748551A (en) * 2019-01-31 2019-05-14 浙江忠信新型建材股份有限公司 The general mortar of autoclaved aerated concrete block plastering and building and preparation process
CN111205027A (en) * 2020-03-02 2020-05-29 广西凯和建材有限责任公司 Waterproof anti-crack mortar composition
CN111302722A (en) * 2018-12-11 2020-06-19 北京海普斯建材有限公司 Polymer anti-crack mortar
CN113754389A (en) * 2021-09-24 2021-12-07 华新水泥股份有限公司 Pumping type impact sound insulation cement-based self-leveling mortar
CN114057442A (en) * 2020-08-04 2022-02-18 杭州墨泰科技股份有限公司 Masonry mortar capable of being pneumatically conveyed
CN114075055A (en) * 2020-08-19 2022-02-22 广东博智林机器人有限公司 Mortar elasticity regulator, mortar paving material for construction robot and application thereof
CN114315265A (en) * 2021-12-07 2022-04-12 华南理工大学 Anti-crack mortar and preparation method and application thereof

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016392A1 (en) * 1995-10-28 1997-05-09 Dennert Poraver Gmbh Pumpable class lm 21 lightweight masonry mortar
EP0839774A1 (en) * 1996-11-02 1998-05-06 DENNERT PORAVER GmbH Leightweight masonry mortar of class LM 21
CN101423364A (en) * 2008-11-26 2009-05-06 江苏省建筑工程集团有限公司 Wet mixture mortar capable of pumping
CN102199011A (en) * 2010-03-26 2011-09-28 上海宝田新型建材有限公司 Mineral powder based admixture for dry-mixed masonry mortar, preparation method and application thereof
CN102659380A (en) * 2012-05-30 2012-09-12 南京天云新型建材科技有限公司 Modified building plastering mortar for aerated concrete
CN102659366A (en) * 2012-05-30 2012-09-12 南京天云新型建材科技有限公司 Novel machine-injected mortar
CN104058688A (en) * 2014-07-01 2014-09-24 山东英才学院 High coal ash dosage I type inorganic building thermal mortar
CN104773986A (en) * 2014-12-26 2015-07-15 贵州皓科新型材料有限公司 Inorganic active heat insulation mortar and construction technology thereof
CN105859218A (en) * 2016-04-14 2016-08-17 广西横县恒丰建材有限责任公司 Premixed mechanized spraying mortar and production method thereof
CN106830822A (en) * 2017-01-13 2017-06-13 南京天云新型建材科技有限公司 A kind of modified form can machine and spray pump send mortar
CN106988544A (en) * 2017-04-26 2017-07-28 朱彦臻 A kind of intelligent bricklaying robot
CN107654077A (en) * 2017-10-19 2018-02-02 厦门华蔚物联网科技有限公司 Consider the bricklaying robot straight line wall of mortar plasticity builds algorithm by laying bricks or stones
CN107619239A (en) * 2017-10-23 2018-01-23 苏州大乘环保新材有限公司 Machine spray lightweight plastering mortar and preparation method thereof
CN107892531A (en) * 2017-10-27 2018-04-10 广西横县恒丰建材有限责任公司 The production method of tunnel cement mortar
CN107892532A (en) * 2017-10-27 2018-04-10 广西横县恒丰建材有限责任公司 High intensity is exempted to shake the production method of environmentally friendly smooth facings prefabricated component mortar
CN108863216A (en) * 2018-07-10 2018-11-23 中冶武汉冶金建筑研究院有限公司 A kind of sprayable inorganic foamed thermal insulation mortar
CN111302722A (en) * 2018-12-11 2020-06-19 北京海普斯建材有限公司 Polymer anti-crack mortar
CN109748551A (en) * 2019-01-31 2019-05-14 浙江忠信新型建材股份有限公司 The general mortar of autoclaved aerated concrete block plastering and building and preparation process
CN111205027A (en) * 2020-03-02 2020-05-29 广西凯和建材有限责任公司 Waterproof anti-crack mortar composition
CN114057442A (en) * 2020-08-04 2022-02-18 杭州墨泰科技股份有限公司 Masonry mortar capable of being pneumatically conveyed
CN114075055A (en) * 2020-08-19 2022-02-22 广东博智林机器人有限公司 Mortar elasticity regulator, mortar paving material for construction robot and application thereof
CN113754389A (en) * 2021-09-24 2021-12-07 华新水泥股份有限公司 Pumping type impact sound insulation cement-based self-leveling mortar
CN114315265A (en) * 2021-12-07 2022-04-12 华南理工大学 Anti-crack mortar and preparation method and application thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
梁伟等: "再生混合砂在湿拌砌筑砂浆中的应用及经济效益分析", 《商品混凝土》 *

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