CN108756065A - A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open - Google Patents
A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open Download PDFInfo
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- CN108756065A CN108756065A CN201810538499.XA CN201810538499A CN108756065A CN 108756065 A CN108756065 A CN 108756065A CN 201810538499 A CN201810538499 A CN 201810538499A CN 108756065 A CN108756065 A CN 108756065A
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- basalt fibre
- fibre grid
- overmolded
- tear
- high performance
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
Abstract
The invention discloses a kind of basalt fibre grid enhancing concrete to exempt to tear column mould and preparation method thereof open, this exempts to tear column template open to include hollow ultra-high performance concrete layer and basalt fibre grid, has shearing resistance convex block in the inner surface of hollow ultra-high performance concrete layer；Preparation method is as follows：1) according to post design information, the form parameter and basalt fibre mesh parameter for exempting to tear open column template are determined；2) interior overmolded, outer overmolded geometric parameter are obtained according to the design of non-dismantling formwork form parameter；3) interior overmolded is produced using increases material manufacturing technology, basalt fibre grid is fixed in interior overmolded later；4) outer overmolded is produced using increases material manufacturing technology, entirety is formed with varus die combination；5) inwardly ultra-high performance concrete is poured between overmolded and outer overmolded；6) maintenance and form removal obtain the basalt fibre grid enhancing concrete and exempt to tear column mould open.The non-dismantling formwork is suitable for the personalized manufacture for building curved column, good integrity, at low cost, excellent durability, easily manufactured.
Description
Technical field
The present invention relates to a kind of basalt fibre grid enhancing concrete to exempt to tear column mould and preparation method thereof open, belongs to building work
Composite column structure technical field in journey.
Background technology
In recent years, fast-developing China's economic further improves the aesthetic level of the people, the regular building of tradition
Style is difficult to meet the requirement of pluralism development, pursues the personalization of building and becomes a new demand.To prick heartily
Di De is a part of high-level architect of representative, is good at and courageously receives domestic market high praise with space and geometry,
Guangzhou grand theater, Nanjing centers Qing Ao etc. are all the masterpieces of this kind of great building individuation.And curve is architect's design of expression
How the important means of theory carries out formwork to pour being a difficulty in traditional cast-in-place construction method to these complicated curved components
Topic, the difficulty of construction often greatly constrain architect and design the space played.
In addition, there is pitted skin, honeycomb, dew muscle and other issues more due to component surface caused by leakage in cast-in-place construction method
Generally, overall structure quality is difficult to ensure, seriously affects structure durability.Meanwhile live formwork occupies a large amount of structure and makes
Valence and labour dosage, long construction period, low production efficiency, labor intensity are high, also generate a large amount of building wastes.Exempt from form removal
Plate no longer carries out template dismantlement work after the completion of concrete structure pouring, be different from the spy that plywood form uses temporarily
Point, non-dismantling formwork are not only the shaping jig of casting concrete and the primary structure member of service stage.It is mixed with after-pouring
Xtah Crude Clay structure is compound and is combined as common primary structure member, can make full use of material, has and simplifies working procedure, improves labour item
Part, the advantages that reducing shuttering supporting, saving labo r usage and accelerate construction progress.Prefabrication template-scene of non-dismantling formwork
The build model of casting concrete can improve overall structure construction quality and durability, be to meet national building industrialization development
Direction alleviates building trade labor shortage problem, practices the Feasible Mode of sustainable development view.
UHPC (ultra-high performance concrete) full name is ultra-high performance concrete, is with cement, mine
The strong toughening of superelevation of the raw materials such as object admixture isoreactivity dusty material, fine aggregate, additive, high-strength steel fibre, water production is mixed
Solidifying soil has high intensity, high tenacity, high-durability, high crack-resistant, shrinkage and creep small and the excellent spy such as good volume stability
Property.But cost is higher, can generally reach the decades of times of normal concrete, constrains its further application development.
China discloses a kind of ultra-high performance concrete column permanent template and its preparation side in careful patent CN106223544A
Method, the template include open column shape ultra-high performance concrete layer, the steel reinforcement cage being built in ultra-high performance concrete layer, and super
The inner surface of high performance concrete layer has dent of the depth not less than 5mm to pour core coagulation with after to enhance ultra-high performance concrete
Cohesive force between soil.Using the higher intensity of ultra-high performance concrete and compactness to improve the performance of component and durable
Property.But its steel reinforcement cage is placed in ultra-high performance concrete, and core is plain concrete, thus ultra-high performance concrete layer is thicker, at
This is not low, and cover to reinforcement minimum only has 10mm, and the influence to its durability leaves a question open.In addition, the template and its system of its announcement
Preparation Method can not prepare the column non-dismantling formwork with complex model just for cylinder or square column section.
Invention content
Technical problem：The purpose of the present invention is to propose to a kind of basalt fibre grid enhancing concrete to exempt to tear column mould and its system open
Preparation Method, this method is easily manufactured, and customizable degree is high, while cost is relatively low, is suitable for being factory produced, it is existing to reduce construction
Field workload, reduces the duration, improves architecture quality and durability.
Technical solution：The present invention provides a kind of basalt fibre grid enhancing concrete to exempt to tear column mould open, this exempts to tear column mould open
Plate includes hollow ultra-high performance concrete layer and is built in basalt fibre grid of the hollow ultra-high performance concrete layer by layer in wall；
The cross-sectional shape of the hollow ultra-high performance concrete layer be square hollow, hollow round, hollow ellipse shape or it is hollow from
By curve form, and its cross-sectional shape and size along hollow ultra-high performance concrete layer height direction change or do not change.
Wherein：
The inner surface of the hollow ultra-high performance concrete layer has the shearing resistance convex block that height is not less than 6mm.
The shape of the shearing resistance convex block includes but not limited to the forms such as cuboid, hemisphere or tetrahedron.
The compression strength of the hollow ultra-high performance concrete layer is not less than 100MPa, and tensile strength is not less than 5MPa, and
Its thickness is not less than 20mm, and the concrete in hollow ultra-high performance concrete layer has self-compacting ability, and slump flow test is not
Less than 550mm.
The basalt fibre grid that hollow ultra-high performance concrete is built in layer by layer in wall, refers in hollow superelevation
Energy concrete in wall, is provided with basalt fibre grid, and the number of plies of basalt fibre grid is along layer wall circumferencial direction layer by layer
One or more layers, and its interlayer spacing is not less than 2mm.
The mesh aperture of the basalt fibre grid is not less than 10mm.
The steel fibre joint length added in the ultra-high performance concrete is less than basalt fibre open work mesh hole
Diameter.
The present invention also provides the preparation method that a kind of basalt fibre grid enhancing concrete exempts to tear open column mould, the preparation sides
Method includes the following steps：
1) according to post design information, the form parameter and basalt fibre mesh parameter for exempting to tear open column template are determined；
2) interior overmolded, outer overmolded geometric parameter are obtained according to the design of non-dismantling formwork form parameter；
3) interior overmolded is produced using increases material manufacturing technology, basalt fibre grid is fixed in interior overmolded later；
4) outer overmolded is produced using increases material manufacturing technology, entirety is formed with varus die combination；
5) inwardly ultra-high performance concrete is poured between overmolded and outer overmolded；
6) maintenance and form removal obtain the basalt fibre grid enhancing concrete and exempt to tear column mould open.
Wherein：
There is the concave block that depth is not less than 6mm in the side of the relatively outer overmolded of the interior overmolded.
The increases material manufacturing technology is paraffinic base 3D printing technique.
Simultaneously form removal refers to being conserved using more than 90 DEG C of hot water for the maintenance, to improve ultra-high performance concrete performance,
And have the characteristics that compared with low melting point using paraffin, in hot water maintenance while melting paraffin and then demould.
Advantageous effect：Compared with prior art, the present invention haing the following advantages：
(1) present invention solves the problems, such as complex model column mold forming, can substantially reduce formwork difficulty and manufacturing cycle, improves
The accuracy of manufacture and quality；
(2) basalt fibre grid is added to enhance ultra-high performance concrete in the present invention, is substituted with orderly basalt fibre
Partial order steel fibre is mixed to reduce steel fibre as far as possible under the premise of not influencing ultra-high performance concrete mechanical property
Amount, reduces difficulty of construction, while the higher intensity of basalt fibre and elasticity modulus, further increases the stress of formwork
Energy；
(3) it this invention ensures that core Minimum Concrete Protective Coating Thickness is more than 20mm, is caused using ultra-high performance concrete
Close property and larger cracking load, can greatly improve the durability of component；
(4) present invention is solved since form removal caused by ultra-high performance concrete contraction is difficult, synchronous to carry out form removal and support
Nurse's sequence, simple flow, and realize that 3D printing material solvent recovery with paraffin recycles, it economizes on resources and reduces cost；
(5) inner surface has an integrated member in shear memory after non-dismantling formwork of the present invention molding, and can according to post design information with make
With operating mode for optimizing and revising member in shear memory size shape and distribution when design, can improve the holistic resistant behavior of coupled column and
Without increasing additional process；
(6) basalt fibre grid of the invention enhancing ultra-high performance concrete non-dismantling formwork is prepared convenient, of low cost,
Suitable for the manufacture, it can be achieved that personalized building is factory produced.
Description of the drawings
Fig. 1 is that the basalt fibre grid enhancing concrete of the present invention exempts to tear column mould schematic diagram open；
Fig. 2 is that the basalt fibre grid enhancing concrete of the present invention exempts to tear column mould upper schematic diagram open；
Fig. 3 is that the basalt fibre grid enhancing concrete of the present invention exempts to tear column mould front-view schematic diagram open；
Fig. 4 is that the basalt fibre grid enhancing concrete of the present invention exempts to tear column mould A-A diagrammatic cross-sections open；
Fig. 5 is that the basalt fibre grid enhancing concrete of the present invention exempts to tear column mould section B-B schematic diagram open；
Fig. 6 is that the basalt fibre grid enhancing concrete of the present invention exempts to tear column mould C-C schematic cross-sections open；
Fig. 7 is that the basalt fibre grid enhancing concrete of the invention that is used to prepare exempts to tear the interior overmolded schematic diagram of column mould open；
Fig. 8 is that the basalt fibre grid enhancing concrete of the invention that is used to prepare exempts to tear the outer overmolded schematic diagram of column mould open；
Fig. 9 is split heads schematic diagram of the present invention for fixing basalt fibre grid；
Have in figure：Hollow ultra-high performance concrete layer 1, basalt fibre grid 2, interior overmolded 3, turns up at shearing resistance convex block 11
Mould 4 and fixed split heads 5.
Specific implementation mode
The present invention proposes a kind of basalt fibre grid enhancing concrete and exempts to tear column mould open, this exempts to tear column template open to include hollow
Ultra-high performance concrete layer 1 and it is built in basalt fibre grid 2 of the hollow ultra-high performance concrete layer by layer in wall, passes through addition
Basalt fibre grid 2 enhances ultra-high performance concrete, and partial order steel fibre is substituted with orderly basalt fibre, to
It does not influence to reduce volume content of steel fibers as far as possible under the premise of ultra-high performance concrete mechanical property, reduces difficulty of construction, simultaneously
The higher intensity of basalt fibre and elasticity modulus, further increase the stress performance of formwork；
The cross-sectional shape of hollow ultra-high performance concrete layer 1 is square hollow, hollow round, hollow ellipse shape or hollow
Free form surface shape, and its cross-sectional shape and size change along hollow 1 short transverse of ultra-high performance concrete layer or do not change,
Solves the problems, such as complex model column mold forming.
The inner surface of hollow ultra-high performance concrete layer 1 has the shearing resistance convex block 11 that height is not less than 6mm；Shearing resistance convex block 11
Shape includes but not limited to the forms such as cuboid, hemisphere, tetrahedron.
The compression strength of hollow ultra-high performance concrete layer 1 is not less than 100MPa, and tensile strength is not less than 5MPa, and it is thick
Degree is not less than 20mm, and there is the concrete in hollow ultra-high performance concrete layer 1 self-compacting ability, slump flow test to be not less than
550mm。
In 1 layer of wall of hollow ultra-high performance concrete layer, layer wall circumferencial direction is provided with basalt fibre grid 2, and
The number of plies of basalt fibre grid 2 is one or more layers, and its interlayer spacing is not less than 2mm.
The mesh aperture of basalt fibre grid 2 is not less than 10mm.
The length of steel fiber added in the ultra-high performance concrete is less than basalt fibre open work mesh aperture.
The present invention also provides the preparation method that a kind of basalt fibre grid enhancing concrete exempts to tear open column mould, the preparation sides
Method includes the following steps：
1) according to post design information, 2 parameter of form parameter and basalt fibre grid for exempting to tear open column template is determined；
2) interior overmolded 3,4 geometric parameter of outer overmolded are obtained according to the design of non-dismantling formwork form parameter；
3) interior overmolded 3 is produced using increases material manufacturing technology, basalt fibre grid 2 is fixed in interior overmolded 3 later；
4) outer overmolded 4 is produced using increases material manufacturing technology, it is whole that formation is combined with interior overmolded 3；
5) inwardly ultra-high performance concrete is poured between overmolded 3 and outer overmolded 4；
6) maintenance and form removal obtain the basalt fibre grid enhancing concrete and exempt to tear column mould open.
Wherein：
There is the concave block that depth is not less than 6mm in the side of the interior overmolded 3 outer overmolded 4 relatively.
The increases material manufacturing technology is paraffinic base 3D printing technique.
Simultaneously form removal refers to being conserved using more than 90 DEG C of hot water for the maintenance, to improve ultra-high performance concrete performance,
And have the characteristics that compared with low melting point using paraffin, in hot water maintenance while melting paraffin and then demould.
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment 1
A kind of basalt fibre grid enhancing concrete exempts to tear column mould (as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6) open,
This is exempted to tear open column template and includes hollow ultra-high performance concrete layer 1 and be built in profound in 1 layer of wall of hollow ultra-high performance concrete layer
Military rock fiber mesh 2, hollow 1 shape of ultra-high performance concrete layer are hollow ellipse cylindricality, and the diameter of upper bottom surface is less than bottom
Face, thickness 20mm, slump flow test 750mm, 28d compression strength are 148.1MPa, flexural strength 18.4MPa；?
It is the rectangular-shape shearing resistance convex block 11 of 6mm that the inner surface of hollow ultra-high performance concrete layer 1, which has height,；
In 1 layer of wall of hollow ultra-high performance concrete layer, layer wall circumferencial direction is provided with 1 layer of basalt fibre grid 2,
The mesh clear distance of basalt fibre grid 2 is 10mm.
A kind of basalt fibre grid enhancing concrete exempts to tear the preparation method of column mould open, includes the following steps：
1) according to post design information, 2 parameter of form parameter and basalt fibre grid for exempting to tear open column template is determined；
2) several according to overmolded 3 (as shown in Figure 7), outer overmolded 4 (as shown in Figure 8) in the design acquisition of non-dismantling formwork form parameter
What parameter, and establish model using 3 d modeling software；
3) interior overmolded 3 and outer overmolded 4 are produced using paraffinic base 3D printing increases material manufacturing technology；
4) basalt fibre grid 2 is cut out according to the form parameter for exempting to tear open column template, reserves end lap length
100mm；
5) basalt fibre grid 2 is evened up in the plane for being layered on and being covered with plastic film, preparation epoxide-resin glue is simultaneously equal
It is even to be applied on basalt fibre grid 2, so that grid is sufficiently impregnated, and fixed split heads 5 is pasted onto the Black Warrior with quincuncial pile arrangement
In 2 one side of rock fiber mesh, fixed split heads is spaced about 40cm；
6) grain size 1mm~2.5mm fine sands are sprayed, the uniformly one layer of viscous sand bed of package of basalt fibre grid 2 is made；
7) basalt fibre grid 2 about 2 hours are stood, to wait for that epoxide-resin glue tentatively has intensity；
8) one side that basalt fibre grid is stained with to fixed split heads 5 faces interior overmolded, is fixed in interior overmolded, and
It is with epoxide-resin glue that the reserved overlapping regions in grid end is adhered to one another, constitute an entirety；
9) about 16 hours are stood, epoxide-resin glue is waited for solidify completely；
10) outer overmolded 4 is fixed in interior overmolded 3, is formed whole；
11) mixing ultra-high performance concrete is poured in overmolded, micro- to shake；
12) 1d is stood, is integrally put into 90 DEG C of hot water and conserves 2d, paraffin overmolded is melted simultaneously for maintenance, synchronous form removal；
13) it takes out basalt fibre grid enhancing concrete to exempt to tear column mould open, is put in standard curing room and continues to conserve 25d, return
The paraffin melted is received in case multiplexing；
14) basalt fibre grid enhancing concrete is obtained to exempt to tear column mould open.
It is the rectangular-shape concave block of 6mm that, which there is depth in the side of the interior overmolded 3 outer overmolded 4 relatively,.
Embodiment 2
A kind of basalt fibre grid enhancing concrete exempts to tear column mould open, this exempts to tear column template open to include hollow very-high performance coagulation
Soil layer 1 and the basalt fibre grid 2 being built in 1 layer of wall of hollow ultra-high performance concrete layer, hollow ultra-high performance concrete
1 shape of layer is hollow square column shape, and thickness 30mm, slump flow test 550mm, 28d compression strength is 120MPa, and anti-folding is strong
Degree is 15.1MPa；It is the hemisphere shape shearing resistance convex block 11 of 10mm to have height in the inner surface of hollow ultra-high performance concrete layer 1；
In 1 layer of wall of hollow ultra-high performance concrete layer, layer wall circumferencial direction is provided with 2 layers of basalt fibre grid 2,
Spacing is 10mm between two layers, and the mesh clear distance of basalt fibre grid 2 is 12mm.
A kind of basalt fibre grid enhancing concrete exempts to tear the preparation method of column mould open, which includes following step
Suddenly：
1) according to post design information, 2 parameter of form parameter and basalt fibre grid for exempting to tear open column template is determined；
2) several according to overmolded 3 (as shown in Figure 7), outer overmolded 4 (as shown in Figure 8) in the design acquisition of non-dismantling formwork form parameter
What parameter, and establish model using 3 d modeling software；
3) interior overmolded 3 and outer overmolded 4 are produced using paraffinic base 3D printing increases material manufacturing technology；
4) basalt fibre grid 2 is cut out according to the form parameter for exempting to tear open column template, reserves end lap length
120mm；
5) basalt fibre grid 2 is evened up in the plane for being layered on and being covered with plastic film, preparation epoxide-resin glue is simultaneously equal
It is even to be applied on basalt fibre grid 2, so that grid is sufficiently impregnated, and fixed split heads 5 is pasted onto the Black Warrior with quincuncial pile arrangement
In 2 one side of rock fiber mesh, fixed split heads 5 is spaced about 50cm；
6) grain size 1mm~2.5mm fine sands are sprayed, the uniformly one layer of viscous sand bed of package of basalt fibre grid 2 is made；
7) basalt fibre grid 2 about 2 hours are stood, to wait for that epoxide-resin glue tentatively has intensity；
8) one side that basalt fibre grid is stained with to fixed split heads faces interior overmolded, is fixed in interior overmolded, and
It is with epoxide-resin glue that the reserved overlapping regions in grid end is adhered to one another, constitute an entirety；
9) about 16 hours are stood, epoxide-resin glue is waited for solidify completely；
10) outer overmolded 4 is fixed in interior overmolded 3, is formed whole；
11) mixing ultra-high performance concrete is poured in overmolded, micro- to shake；
12) 1d is stood, is integrally put into 95 DEG C of hot water and conserves 2d, paraffin overmolded is melted simultaneously for maintenance, synchronous form removal；
13) it takes out basalt fibre grid enhancing concrete to exempt to tear column mould open, is put in standard curing room and continues to conserve 25d, return
The paraffin melted is received in case multiplexing；
14) basalt fibre grid enhancing concrete is obtained to exempt to tear column mould open.
It is the hemisphere shape concave block of 10mm that, which there is depth in the side of the interior overmolded 3 outer overmolded 4 relatively,.
Embodiment 3
A kind of basalt fibre grid enhancing concrete exempts to tear column mould open, this exempts to tear column template open to include hollow very-high performance coagulation
Soil layer 1 and the basalt fibre grid 2 being built in 1 layer of wall of hollow ultra-high performance concrete layer, hollow ultra-high performance concrete
1 shape of layer is hollow cylinder, and thickness 25mm, slump flow test 650mm, 28d compression strength is 100MPa, and anti-folding is strong
Degree is 13.2MPa；It is the tetrahedral shearing resistance convex block 11 of 8mm to have height in the inner surface of hollow ultra-high performance concrete layer 1；
In 1 layer of wall of hollow ultra-high performance concrete layer, the basalt fibre grid 2 that haves three layers is set along layer wall circumferencial direction,
Spacing is 5mm between layers, and the mesh clear distance of basalt fibre grid 2 is 15mm.
A kind of basalt fibre grid enhancing concrete exempts to tear the preparation method of column mould open, which includes following step
Suddenly：
1) according to post design information, 2 parameter of form parameter and basalt fibre grid for exempting to tear open column template is determined；
2) several according to overmolded 3 (as shown in Figure 7), outer overmolded 4 (as shown in Figure 8) in the design acquisition of non-dismantling formwork form parameter
What parameter, and establish model using 3 d modeling software；
3) interior overmolded 3 and outer overmolded 4 are produced using paraffinic base 3D printing increases material manufacturing technology；
4) basalt fibre grid 2 is cut out according to the form parameter for exempting to tear open column template, reserves end lap length
120mm；
5) basalt fibre grid 2 is evened up in the plane for being layered on and being covered with plastic film, preparation epoxide-resin glue is simultaneously equal
It is even to be applied on basalt fibre grid 2, so that grid is sufficiently impregnated, and fixed split heads 5 is pasted onto the Black Warrior with quincuncial pile arrangement
In 2 one side of rock fiber mesh, fixed split heads 5 is spaced about 50cm；
6) grain size 1mm~2.5mm fine sands are sprayed, the uniformly one layer of viscous sand bed of package of basalt fibre grid 2 is made；
7) basalt fibre grid 2 about 2 hours are stood, to wait for that epoxide-resin glue tentatively has intensity；
8) one side that basalt fibre grid is stained with to fixed split heads faces interior overmolded, is fixed in interior overmolded, and
It is with epoxide-resin glue that the reserved overlapping regions in grid end is adhered to one another, constitute an entirety；
9) about 16 hours are stood, epoxide-resin glue is waited for solidify completely；
10) outer overmolded 4 is fixed in interior overmolded 3, is formed whole；
11) mixing ultra-high performance concrete is poured in overmolded, micro- to shake；
12) 1d is stood, is integrally put into 95 DEG C of hot water and conserves 2d, paraffin overmolded is melted simultaneously for maintenance, synchronous form removal；
13) it takes out basalt fibre grid enhancing concrete to exempt to tear column mould open, is put in standard curing room and continues to conserve 25d, return
The paraffin melted is received in case multiplexing；
14) basalt fibre grid enhancing concrete is obtained to exempt to tear column mould open.
It is the hemisphere shape concave block of 8mm that, which there is depth in the side of the interior overmolded 3 outer overmolded 4 relatively,.
Claims (10)
1. a kind of basalt fibre grid enhancing concrete exempts to tear column mould open, it is characterised in that：This exempts to tear column template open to include hollow super
High performance concrete layer (1) and the basalt fibre grid (2) being built in hollow ultra-high performance concrete layer (1) layer wall；Institute
The cross-sectional shape for the hollow ultra-high performance concrete layer (1) stated be square hollow, hollow round, hollow ellipse shape or it is hollow from
By curve form, and its cross-sectional shape and size change along hollow ultra-high performance concrete layer (1) short transverse or do not change.
2. a kind of basalt fibre grid enhancing concrete as described in claim 1 exempts to tear column mould open, it is characterised in that：The sky
The inner surface of heart ultra-high performance concrete layer (1) has the shearing resistance convex block (11) that height is not less than 6mm.
3. a kind of basalt fibre grid enhancing concrete as claimed in claim 2 exempts to tear column mould open, it is characterised in that：Described
The shape of shearing resistance convex block (11) is cuboid, hemisphere or tetrahedron.
4. a kind of basalt fibre grid enhancing concrete as described in claim 1 exempts to tear column mould open, it is characterised in that：The sky
The compression strength of heart ultra-high performance concrete layer (1) is not less than 100MPa, and tensile strength is not less than 5MPa, and its thickness is not less than
20mm, and there is the concrete in hollow ultra-high performance concrete layer (1) self-compacting ability, slump flow test to be not less than 550mm.
5. a kind of basalt fibre grid enhancing concrete as described in claim 1 exempts to tear column mould open, it is characterised in that：In described
The basalt fibre grid (2) being placed in hollow ultra-high performance concrete layer (1) layer wall, refers in hollow ultra-high performance concrete
In layer (1) layer wall, layer wall circumferencial direction is provided with basalt fibre grid (2), and the number of plies of basalt fibre grid (2) is
One or more layers, and its interlayer spacing is not less than 2mm.
6. a kind of basalt fibre grid enhancing concrete as described in claim 1 exempts to tear column mould open, it is characterised in that：Described
The mesh aperture of basalt fibre grid (2) is not less than 10mm.
7. a kind of basalt fibre grid enhancing concrete as described in claim 1 exempts to tear the preparation method of column mould, feature open
It is：The preparation method includes the following steps：
1) according to post design information, the form parameter and basalt fibre grid (2) parameter for exempting to tear open column template are determined；
2) interior overmolded (3), outer overmolded (4) geometric parameter are obtained according to the design of non-dismantling formwork form parameter；
3) interior overmolded (3) is produced using increases material manufacturing technology, basalt fibre grid (2) is fixed on interior overmolded (3) later
On；
4) outer overmolded (4) is produced using increases material manufacturing technology, it is whole that formation is combined with interior overmolded (3)；
5) inwardly ultra-high performance concrete is poured between overmolded (3) and outer overmolded (4)；
6) maintenance and form removal obtain the basalt fibre grid enhancing concrete and exempt to tear column mould open.
8. a kind of basalt fibre grid enhancing concrete as claimed in claim 7 exempts to tear the preparation method of column mould, feature open
It is：There is the concave block that depth is not less than 6mm in the side of the relatively outer overmolded (4) of the interior overmolded (3).
9. a kind of basalt fibre grid enhancing concrete as claimed in claim 7 exempts to tear the preparation method of column mould, feature open
It is：The increases material manufacturing technology is paraffinic base 3D printing technique.
10. a kind of basalt fibre grid enhancing concrete as claimed in claim 7 exempts to tear the preparation method of column mould, feature open
It is：The maintenance and form removal refers to being conserved using more than 90 DEG C of hot water, in hot water maintenance while melting paraffin and then takes off
Mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538499.XA CN108756065A (en) | 2018-05-30 | 2018-05-30 | A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810538499.XA CN108756065A (en) | 2018-05-30 | 2018-05-30 | A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108756065A true CN108756065A (en) | 2018-11-06 |
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ID=64003967
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| CN201810538499.XA Pending CN108756065A (en) | 2018-05-30 | 2018-05-30 | A kind of basalt fibre grid enhancing concrete exempts to tear column mould and preparation method thereof open |
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Application publication date: 20181106 |