CN110748036A - High-toughness bionic masonry wall built by 3D printing technology and building method thereof - Google Patents
High-toughness bionic masonry wall built by 3D printing technology and building method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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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
- 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
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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
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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
- 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
- C04B2111/00181—Mixtures specially adapted for three-dimensional printing (3DP), stereo-lithography or prototyping
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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
- 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
- C04B2111/00482—Coating or impregnation materials
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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
- 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
- C04B2111/00663—Uses not provided for elsewhere in C04B2111/00 as filling material for cavities or the like
- C04B2111/00672—Pointing or jointing materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
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Abstract
The invention relates to a high-toughness bionic masonry wall and a construction method thereof. The ultra-high molecular weight polyethylene fiber concrete is used as a building material, continuous horizontal mortar joints are formed through continuous paving, and then a common solid or porous block wall is built manually or automatically, so that the wall has the characteristics of multiple stages and layering of shell pearl layers, and the characteristics of high toughness and high ductility are achieved. The invention relates to a bionic mechanism of a 'brick-mud structure' of a shell pearl layer, which utilizes the reinforcing effect of an ultrahigh molecular weight polyethylene fiber reinforced continuous mortar layer after cracking to excite multi-crack cracking and induce crack deflection. Compared with the brittle failure of the traditional reinforcement-free masonry wall under the action of earthquake force, the structural form can greatly improve the bearing capacity and the energy consumption capacity of the brick-concrete structure. The technology is suitable for manual or automatic masonry of brickwork and mortar bed 3D printing technology, and can become a part of intelligent building construction.
Description
Technical Field
The invention belongs to the field of building structures, and relates to a high-toughness bionic masonry wall and a construction method thereof.
Background
The pearl layer structure of the shell is the classic case of the miraculous creatures of nature. The nacreous layer consists of approximately 95% aragonite platelets and 5% organic matter. The main component of the aragonite tablet is calcium carbonate, and the aragonite tablet and organic matter are combined in a skillful brick-mud structure, so that the pearl layer has strong mechanical property, and the energy absorbed by the pearl layer can even reach 1000 to 3000 times compared with that of the pure aragonite when the pearl layer is damaged.
Masonry structures naturally have the structural characteristics similar to pearl layer structures, and have an important role in building structures all the time due to the characteristics of simple conditions, high modeling freedom degree and the like required by building. However, the traditional masonry structure has the characteristic of brittle failure, and when subjected to shearing force, a single main crack extending along the mortar joint is often damaged. Due to the weak link of mortar, the seismic performance of the traditional masonry structure is far lower than that of a common reinforced concrete structure, and the potential of a natural bionic structure cannot be exerted.
The patent publication No. CN106592815A discloses a method for manufacturing a masonry wall with high shear resistance and seismic resistance, which improves the seismic resistance of the masonry wall by replacing traditional mortar with polyvinyl alcohol fiber reinforced cement-based composite material and coating the material on two side surfaces of the masonry wall. However, the construction process still adopts a fully-manual 'three-masonry method', so that the horizontal mortar joints cannot be communicated, and the bridging effect of fibers is influenced. And the mechanical property of the adopted polyvinyl alcohol fiber reinforced cement-based composite material is poor, and the deflection and multi-slit induction of cracks cannot be realized.
Disclosure of Invention
The invention aims to provide a masonry wall which is bionic in shell mother-of-pearl structure, can be automatically constructed and has high toughness and a construction method thereof, aiming at the defects of the prior art.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a bionical brickwork wall of high tenacity, includes the wall body that fragment of brick or building block built, its characterized in that: an ultrahigh molecular weight polyethylene fiber reinforced concrete continuous spreading layer is arranged between two adjacent layers of bricks or blocks, and a common mortar filling layer is arranged in a vertical gap of the bricks or blocks.
The ultra-high molecular weight polyethylene fiber reinforced concrete is common concrete, and ultra-high molecular weight polyethylene fibers with the volume mixing amount of 0.5-2.5% are doped into the common concrete;
or the ultra-high molecular weight polyethylene fiber reinforced concrete is prepared from the following materials in parts by weight:
400 portions of cement, 400 portions of fly ash, 800 portions of sand, 400 portions of water reducing agent, 2-15 portions of water, 180 portions of water and 10-25 portions of ultra-high molecular weight polyethylene fiber.
The ultra-high molecular weight polyethylene fiber has the diameter of 10-45 mu m, the length of 9-25mm, the length-diameter ratio of more than 200 and the elongation at break of 2-3 percent.
The tensile strength of the ultra-high molecular weight polyethylene fiber reinforced concrete is 1-15 MPa, the strain corresponding to the maximum tensile strength is 1% -12%, and the compressive strength of the ultra-high molecular weight polyethylene fiber reinforced concrete is 10-100 MPa.
The brick or the building block is a solid or porous building block.
The masonry mode is a cis-T type or an up-down staggered seam type.
A construction method of a high-toughness bionic masonry wall is characterized by comprising the following steps: the method comprises the following steps:
(1) preparing ultra-high molecular weight polyethylene fiber concrete;
(2) watering and wetting solid or hollow bricks or building blocks to be used according to the use requirement;
(3) the prepared ultra-high molecular weight polyethylene fiber reinforced concrete is continuously paved through manpower or machinery to form a continuous mortar layer, then bricks or building blocks are placed on the layer, the vertical gaps are filled with common mortar, then lifting in the height direction is carried out through the manpower or machinery, and a next layer of ultra-high molecular weight polyethylene fiber reinforced concrete continuous paving layer is paved on the built bricks or building blocks; the uniformity and the plumpness of the mortar are accurately controlled, the error is not more than 10 percent, and the continuity of the horizontal mortar joint is strictly maintained. Then, repeating the process of placing bricks or building blocks for building, and finally finishing the manufacturing of the masonry wall;
(4) and after the manufacturing is finished, watering and curing for 7 days, and then curing under outdoor conditions for 28 days to obtain the masonry wall.
Compared with the prior art, the invention has the following characteristics:
(1) the mortar for forming the horizontal mortar joints is ultra-high molecular weight polyethylene fiber reinforced concrete, the compressive strength is about 10-100 MPa, the tensile strength can reach 1-15 MPa, the unidirectional tensile strain energy corresponding to the maximum strength is kept between 1% and 12%, the mortar has good mechanical properties, and can play a role similar to organic matters in a pearl layer, so that crack deflection and multi-joint cracking are induced, and the toughness and energy consumption capability of a masonry wall are effectively improved;
(2) the solid or porous building block can be pressed into the hole through partial horizontal mortar joint mortar to form the occlusion effect similar to a pearl layer mineral bridge, so that the mechanical property of the interface of the brick and the mortar is effectively improved;
(3) the mortar of the horizontal mortar joint is manually or mechanically spread continuously, so that the continuity of the fiber bridging effect can be kept, the fullness of the horizontal mortar joint is ensured, and the mechanical property of the masonry wall is improved; meanwhile, labor can be saved, and the construction efficiency is improved.
The masonry wall related by the invention adopts ultra-high molecular weight polyethylene fiber reinforced concrete as mortar of a horizontal mortar joint, the uniformity and the plumpness of the masonry wall can be accurately controlled by manually or mechanically continuously paving the mortar, the continuity of the horizontal mortar joint is kept, in addition, part of the mortar permeates porous bricks or porous building blocks during masonry to form the occlusion effect similar to a mineral bridge in a pearl layer, so that the masonry wall can play a role similar to an organic layer in the pearl layer, and crack deflection and multi-joint cracking are induced, thereby effectively improving the toughness and the energy consumption capability of the masonry wall, simultaneously realizing mechanical automatic mortar paving and building block arrangement, saving manpower and improving the construction efficiency.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic front and side view of masonry walls of examples 1 and 2;
FIG. 2 is a schematic front and side view of a masonry wall according to example 3;
FIG. 3 is a schematic view of a perforated brick or a perforated block used in examples 1, 2 and 3;
fig. 4, 5 and 6 are schematic views of the meshing action of different solid or hollow blocks.
FIG. 7 is a graph of lateral displacement versus lateral load.
In the figure: 1. solid or hollow blocks; 2. ultra-high molecular weight polyethylene fiber mortar; 3. and (5) vertically jointing mortar.
Detailed Description
Example 1
The horizontal mortar joint mortar used for the high-toughness bionic masonry wall is ultra-high molecular weight polyethylene fiber reinforced concrete, and the components and the parts by weight are as follows: 600 parts of P.O.52.5 ordinary portland cement, 400 parts of fly ash, 150 parts of silica fume, 650 parts of sand, 4 parts of water reducing agent, 220 parts of water and 15 parts of ultra-high molecular weight polyethylene fiber, wherein the fiber length is 18mm, and the length-diameter ratio is 750. The bricks used by the high-toughness bionic masonry wall of the embodiment are porous clay bricks, and the sizes of the bricks are 240mm multiplied by 115mm multiplied by 53 mm. The vertical mortar joint mortar used by the high-toughness bionic masonry wall is ordinary M5 cement lime mortar, and the masonry mode is an up-down staggered joint mode, as shown in figure 1.
The construction method of the high-toughness bionic masonry wall comprises the following steps:
(1) inputting the height, width and thickness of a wall to be built and the size of a brick to be used into a program of a 3D printer, and determining a printing path according to the geometric configuration of the wall;
(2) watering and wetting bricks to be used according to the use requirement;
(3) preparing ultra-high molecular weight polyethylene fiber reinforced concrete and common mortar, wherein the step of preparing the polyethylene fiber reinforced concrete is as follows:
(a) adding 600 parts of ordinary portland cement, 400 parts of fly ash, 150 parts of silica fume and 650 parts of sand into a stirrer, and stirring the dry powder for 2-3 minutes so as to uniformly mix the materials;
(b) adding a mixed liquid of 4 parts of water reducing agent and 220 parts of water, and stirring for 5-6 minutes to make the dry powder into slurry;
(c) 15 parts of fibers are added in batches and stirred for 5-10 minutes to ensure that the fibers are uniformly dispersed;
(4) the prepared polyethylene fiber reinforced concrete is loaded into a feeding system of a 3D printer, the 3D printer runs, a first layer of horizontal mortar joints are laid, then bricks are placed on the mortar joints, the gaps among the bricks are 10mm, the vertical gaps are filled with common mortar, then a discharge port of the 3D printer is lifted by 63mm in the height direction, and a next layer of horizontal mortar joints are laid on the built bricks. Then repeating the process, and finally finishing the manufacture of the masonry wall by adopting an up-down staggered joint building method;
(5) and after the manufacturing is finished, watering and curing for 7 days, and then curing under outdoor conditions for 28 days to obtain the masonry wall.
The masonry wall constructed in this example was height x width x thickness =998mm x 990mm x 240 mm.
Example 2
The horizontal mortar joint mortar used for the high-toughness bionic masonry wall is ultra-high molecular weight polyethylene fiber reinforced concrete, and the components and the parts by weight are as follows: P.O 42.5.5 parts of ordinary portland cement 600 parts, I-grade fly ash 400 parts, silica fume 100 parts, sand 450 parts, water reducing agent 10 parts, water 220 parts and polyethylene fiber 15 parts, wherein the length of the ultra-high molecular weight polyethylene fiber is 12mm, and the length-diameter ratio is 500. The brick block used by the high-toughness bionic masonry wall is a porous fly ash brick block, the size of the brick block is 240mm multiplied by 115mm multiplied by 53mm, and the masonry mode is an up-down staggered joint mode.
The construction method of the high-toughness bionic masonry wall comprises the following steps:
(1) inputting the height, width and thickness of the wall to be built and the size of the used building blocks into a program of a 3D printer, and determining a printing path according to the geometric configuration of the wall;
(2) watering and wetting the building blocks to be used according to the use requirement;
(3) preparing ultra-high molecular weight polyethylene fiber reinforced concrete, wherein the step of preparing the polyethylene fiber reinforced concrete is as follows:
(a) adding 600 parts of cement, 400 parts of I-grade fly ash, 100 parts of silica fume and 450 parts of sand into a stirrer, and stirring the dry powder for 2-3 minutes so as to uniformly mix the materials;
(b) adding mixed liquid of 10 parts of water reducing agent and 220 parts of water, and stirring for 5-6 minutes to make the dry powder into slurry;
(c) 15 parts of fibers are added in batches and stirred for 10 minutes to ensure that the fibers are uniformly dispersed;
(4) the prepared polyethylene fiber reinforced concrete is loaded into a feeding system of a 3D printer, the 3D printer operates, a first layer of horizontal mortar joints are laid, then building blocks are placed on the mortar joints, mortar is not laid on the vertical joints, then a discharge port of the 3D printer is lifted by 63mm in the height direction, and a next layer of horizontal mortar joints are laid on the built building blocks. Then repeating the process, and finally finishing the manufacture of the masonry wall by adopting an up-down staggered joint building method;
(5) and after the manufacturing is finished, watering and curing for 7 days, and then curing under outdoor conditions for 28 days to obtain the masonry wall.
The masonry wall constructed in this example was height x width x thickness =998mm x 990mm x 240 mm.
Example 3
The horizontal mortar joint mortar used for the high-toughness bionic masonry wall is ultra-high molecular weight polyethylene fiber reinforced concrete, and the components and the parts by weight are as follows: P.O 52.5.5 parts of ordinary portland cement 500 parts, class I fly ash 400 parts, sand 450 parts, water reducing agent 3 parts, water 230 parts and polyethylene fiber 20 parts, wherein the polyethylene fiber has a length of 18mm and a length-diameter ratio of 750. The bricks used by the high-toughness bionic masonry wall of the embodiment are porous clay bricks, and the sizes of the bricks are 240mm multiplied by 115mm multiplied by 53 mm. The vertical mortar joint mortar used by the high-toughness bionic masonry wall is ordinary M5 cement mortar, and the masonry method is a one-to-one method.
The construction method of the high-toughness bionic masonry wall comprises the following steps:
(1) inputting the height, width and thickness of a wall to be built and the size of a brick to be used into a program of a 3D printer, and determining a printing path according to the geometric configuration of the wall;
(2) watering and wetting bricks to be used according to the use requirement;
(3) preparing ultra-high molecular weight polyethylene fiber reinforced concrete and common mortar, wherein the step of preparing the polyethylene fiber reinforced concrete is as follows:
(a) adding 500 parts of cement, 400 parts of I-grade fly ash and 450 parts of sand into a stirrer, and stirring the dry powder for 2-3 minutes to achieve uniform mixing;
(b) adding a mixed liquid of 3 parts of water reducing agent and 230 parts of water, and stirring for 5-6 minutes to make the dry powder into slurry;
(c) adding 20 parts of fibers in batches, and stirring for 10-12 minutes to ensure uniform dispersion of the fibers;
(4) the feeding system of 3D printer is put into to the polyethylene fibre reinforced concrete that will dispose, and the operation of 3D printer is laid first layer horizontal mortar joint, then places the fragment of brick on this layer mortar joint, leaves seam 10mm between the fragment of brick, fills vertical gap with ordinary mortar, then 3D printer discharge gate promotes 63mm in the direction of height, lays next layer horizontal mortar joint on the fragment of brick that has built. Then repeating the process, and adopting a one-to-one masonry method to finally finish the manufacture of the masonry wall;
(5) and after the manufacturing is finished, watering and curing for 7 days, and then curing under outdoor conditions for 28 days to obtain the masonry wall.
The masonry wall constructed in this example was height x width x thickness =998mm x 990mm x 240 mm.
Example 4:
the ultra-high molecular weight polyethylene fiber reinforced concrete is common concrete, and ultra-high molecular weight polyethylene fibers with the volume doping amount of 1.5 percent are doped into the common concrete; the rest is the same as example 1.
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. It is not necessary or necessary to exhaustively enumerate all embodiments herein, and obvious variations or modifications can be made without departing from the scope of the invention as claimed.
Claims (7)
1. The utility model provides an application 3D printing technique is built high tenacity bionical brickwork wall, includes the wall body that fragment of brick or building block were built which characterized in that: an ultrahigh molecular weight polyethylene fiber reinforced concrete continuous spreading layer is arranged between two adjacent layers of bricks or blocks, and a common mortar filling layer is arranged in a vertical gap of the bricks or blocks.
2. The high toughness bionic masonry wall built by using the 3D printing technology according to claim 1, wherein: the ultra-high molecular weight polyethylene fiber reinforced concrete is common concrete, and ultra-high molecular weight polyethylene fibers with the volume mixing amount of 0.5-2.5% are doped into the common concrete;
or the ultra-high molecular weight polyethylene fiber reinforced concrete is prepared from the following materials in parts by weight:
800 portions of cement, 400 portions of fly ash, 800 portions of sand, 400 portions of silica fume, 50-200 portions of silica fume, 2-15 portions of water reducing agent, 400 portions of water and 180 portions of ultrahigh molecular weight polyethylene fiber.
3. The high toughness bionic masonry wall built by using the 3D printing technology according to claim 1, wherein: the ultra-high molecular weight polyethylene fiber has the diameter of 10-45 mu m, the length of 9-25mm, the length-diameter ratio of more than 200 and the elongation at break of 2-3 percent.
4. The high toughness bionic masonry wall built by using the 3D printing technology according to claim 1, wherein: the tensile strength of the ultra-high molecular weight polyethylene fiber reinforced concrete is 1-15 MPa, the strain corresponding to the maximum tensile strength is 1% -12%, and the compressive strength of the ultra-high molecular weight polyethylene fiber reinforced concrete is 10-100 MPa.
5. The high toughness bionic masonry wall built by using the 3D printing technology according to claim 1, wherein: the brick or the building block is a solid or porous building block.
6. The high toughness bionic masonry wall built by using the 3D printing technology according to claim 1, wherein: the masonry mode is a cis-T type or an up-down staggered seam type.
7. A construction method of a high-toughness bionic masonry wall constructed by using a 3D printing technology is characterized by comprising the following steps of: the method comprises the following steps:
(1) preparing ultra-high molecular weight polyethylene fiber concrete;
(2) watering and wetting solid or hollow bricks or building blocks to be used according to the use requirement;
(3) the prepared ultra-high molecular weight polyethylene fiber reinforced concrete is continuously paved through manpower or machinery to form a continuous mortar layer, then bricks or building blocks are placed on the layer, the vertical gaps are filled with common mortar, then lifting in the height direction is carried out through the manpower or machinery, and a next layer of ultra-high molecular weight polyethylene fiber reinforced concrete continuous paving layer is paved on the built bricks or building blocks; the uniformity and the plumpness of the mortar are accurately controlled, the error does not exceed 10 percent, and the continuity of the horizontal mortar joint is strictly maintained; then, repeating the process of placing bricks or building blocks for building, and finally finishing the manufacturing of the masonry wall;
(4) and after the manufacturing is finished, watering and curing for 7 days, and then curing under outdoor conditions for 28 days to obtain the masonry wall.
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CN111792892A (en) * | 2020-06-27 | 2020-10-20 | 同济大学 | Method for building or reinforcing masonry wall by using UHMWPE cement-based mortar |
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CN111792892A (en) * | 2020-06-27 | 2020-10-20 | 同济大学 | Method for building or reinforcing masonry wall by using UHMWPE cement-based mortar |
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