CN102912975A - Mutually-buckled type assembled anti-cracking impermeable permanent column template - Google Patents

Mutually-buckled type assembled anti-cracking impermeable permanent column template Download PDF

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CN102912975A
CN102912975A CN2012104310188A CN201210431018A CN102912975A CN 102912975 A CN102912975 A CN 102912975A CN 2012104310188 A CN2012104310188 A CN 2012104310188A CN 201210431018 A CN201210431018 A CN 201210431018A CN 102912975 A CN102912975 A CN 102912975A
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cement
base composite
volume
weight
mineral admixture
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CN2012104310188A
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CN102912975B (en
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李庆华
黄博滔
徐世烺
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常州市固邦复合材料科技有限公司
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Abstract

The invention discloses a mutually-buckled type assembled anti-cracking impermeable permanent column template. Adjacent corner panels are buckled and are connected through an adhesive. The mutually-buckled type assembled anti-cracking impermeable permanent column template can be taken as a column template in a column pouring stage of structures, such as industrial and civil building structures, hydraulic structures, port structures and the like, and can be both taken as a protecting plate and an outer protecting layer of the structure after pouring molding, and can bear a part of load. According to the invention, the template can be made by the following different kinds of materials including a self-compaction ultra-high toughness cement based cementitious material (self-compaction UHTCC), a nonmetallic fiber woven net, a chopped fiber combined enhanced cement based composite material, a steel mesh chopped fiber combined enhanced cement based composite material and the like, and the mutually-buckled type assembled anti-cracking impermeable permanent column template has the characteristics of simple production, convenience for use, high durability, and capability of controlling crack developing.

Description

But a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering
Technical field
The invention belongs to a kind of construction formwork; a kind of high-durability permanent formwork that is mainly used in industry and civilian construction structure, hydro-structure and the isostructural cylinder of port sea structure specifically; use as template in the stage of building; build double protected apron and the external protection of doing structure after the moulding, bear simultaneously the structural load of a part.
Background technology
At present, in the domestic construction field, industry is used the templates such as wooden form, steel form usually with civilian construction structure, hydro-structure and the port isostructural cylinder of sea structure, has the unfavorable factors such as consumption is large, dismounting is inconvenient, the turnover expense high, utilization rate is low.Endurance issues is one of subject matter of facing of reinforced concrete structure all the time.The ordinary concrete surface is naturally exposed in the structure under the conventional situation, and durability is lower, and the house of China nearly 50% enters the ageing step at present, and namely 23.4 hundred million square metres building faces endurance issues.In addition, the key character that hydro-structure, port sea structure etc. is different from other types building structure with cracking resistance as controlled condition design, the normal operation that ordinary concrete problem easy to crack not only can affect hydro-structure etc. also can affect its durability and application life, serious even safe operation that can affect structure.More than some be industry all the time with the construction such as civilian construction structure, hydro-structure and sea, port structure and use procedure in more scabrous problem.
Summary of the invention
But technical problem to be solved by this invention provides a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering, the unfavorable factor of bringing to improve conventional template, improve simultaneously structure durability, reduce the application life of structure later maintenance cost and final extending structure, for this reason, the present invention is by the following technical solutions:
It forms template by the corner panel, and described corner panel consists of main body with the first perpendicular panel and the second panel; The wherein inboard of a side of described corner panel has the connection configuration of projection, the opposite side of described corner panel have its size can with the outwardly open link slot that is connected configuration and peg graft cooperates, perhaps, the wherein outside of a side of described corner panel has the connection configuration of projection, the opposite side of described corner panel have its size can with is connected the peg graft link slot to inner opening of cooperation of configuration; Described corner panel selects following different materials to make: self-compaction superhigh tenacity cement-base composite material, non metal fiber woven net and flock combined reinforced concrete base composite material, gauze wire cloth and flock combined reinforced concrete base composite material.
On the basis of adopting technique scheme, the present invention also can adopt following further technical scheme:
Used self-compaction superhigh tenacity cement-base composite material, its composition comprises cement, active mineral admixture, aggregate, fiber, polycarboxylate water-reducer and water, and active mineral admixture adopts the combination of flyash or flyash and following one or more materials: silicon ash, granulated blast-furnace slag, metakaolin; The maximum particle diameter of aggregate is no more than 0.5mm, fiber is one or more the combination in vinal, polyethylene fibre, the aromatic polyamide fibre, fibre length is that 5~25mm, diameter are that 0.015~0.055 mm, modulus of elasticity are that 30 ~ 150GPa, tensile strength are that 1000 ~ 3500MPa, ultimate elongation are 2%~15%, and the weight ratio of cement and each component of active mineral admixture is:
Cement 12%~55%
Flyash 45%~85%
Silicon ash 0~15%
Granulated blast-furnace slag 0~10%
Metakaolin 0~20%
Each components by weight sum of above cement and active mineral admixture satisfies 100%;
The weight of aggregate is 1%~70% with the ratio of cement and active mineral admixture gross weight, the weight of water is 18%~58% with the ratio of cement and active mineral admixture gross weight, the volume of fiber is 1.5%~2.5% of cement-base composite material cumulative volume, and the polycarboxylate water-reducer volume is 0.1%~0.4% of gross mass.
Described self-compaction superhigh tenacity cement-base composite material uses vinal, when three kinds of fibers of polyethylene fiber peacekeeping aromatic polyamide fibre strengthen simultaneously, its proportioning is:
Each components by weight of cement and active mineral admixture is: cement 25%, flyash 60%, silicon ash 2%, granulated blast-furnace slag 8%, metakaolin 5%;
The maximum particle diameter of aggregate is 0.5mm, and aggregate weight is 40% with the ratio that cement adds the active mineral admixture gross weight, and the weight of water is 25% ~ 45% with the ratio that cement adds the active mineral admixture gross weight; The volume of fiber is 1.8% ~ 2.3% of cement-base composite material cumulative volume;
The polyethylene fibre length that adopts is 12mm, and diameter is 0.039mm, and tensile strength is 1620MPa, and modulus of elasticity is 42.8GPa, and ultimate elongation is 6%, and volume is 1.2% ~ 1.5% of cement-base composite material cumulative volume; Polyethylene fibre length is 12.7mm, and diameter is 0.038mm, and tensile strength is 2700MPa, and modulus of elasticity is 120GPa, and ultimate elongation is 3.5%, and volume is 0.4% ~ 0.9% of cement-base composite material cumulative volume; Aromatic polyamide fibre length is 15mm, and diameter is 0.015mm, and tensile strength is 2800MPa, and modulus of elasticity is 132GPa, ultimate elongation 2.4%, and volume is 0.2% ~ 0.4% of cement-base composite material cumulative volume.
When described self-compaction superhigh tenacity cement-base composite material used vinal and two kinds of fibers of aromatic polyamide fibre to strengthen simultaneously when described cement-base composite material, its proportioning was:
Each components by weight of cement and active mineral admixture is: cement 30%, flyash 52%, granulated blast-furnace slag 3%, metakaolin 15%;
The maximum particle diameter of aggregate is 0.5mm, and aggregate weight is 65% with the ratio that cement adds the active mineral admixture gross weight, and the weight of water is 20% ~ 55% with the ratio that cement adds the active mineral admixture gross weight; The volume of fiber is 1.8% ~ 2.2% of cement-base composite material cumulative volume;
The vinal length that adopts is 12mm, and diameter is 0.039mm, and tensile strength is 1620MPa, and modulus of elasticity is 42.8GPa, and ultimate elongation is 6%, and volume is 1.6% ~ 2.0% of cement-base composite material cumulative volume; Aromatic polyamide fibre length is 15mm, and diameter is 0.015mm, and tensile strength is 2800MPa, and modulus of elasticity is 132GPa, ultimate elongation 2.4%, and volume is 0.2% ~ 0.4% of cement-base composite material cumulative volume.
When described self-compaction superhigh tenacity cement-base composite material used vinal and two kinds of fibers of polyethylene fibre to strengthen simultaneously when described cement-base composite material, its proportioning was:
Each components by weight of cement and active mineral admixture is: cement 55%, flyash 45%, the model of cement are P.II 52.5 R;
The maximum particle diameter of aggregate is 0.5mm, and the weight of aggregate is 50% with the ratio that cement adds the active mineral admixture gross weight, and the weight of water is 40% ~ 55% with the ratio that cement adds the active mineral admixture gross weight; The volume of fiber is 1.8% ~ 2.2% of cement-base composite material cumulative volume;
The vinal length that adopts is 12mm, and diameter is that 0.039mm, tensile strength are that 1620MPa, modulus of elasticity are that 42.8GPa, ultimate elongation are 6%, and volume is 1.2% ~ 1.9% of fibrous concrete cumulative volume; Polyethylene fibre length is 12.7mm, and diameter is 0.038mm, and tensile strength is 2700MPa, and modulus of elasticity is 120GPa, and ultimate elongation is 3.5%, and volume is 0.3% ~ 0.8% of cement-base composite material cumulative volume.
Described non metal fiber woven net and flock combined reinforced concrete base composite material are by non metal fiber woven net, nonmetal short fiber and cement based matrix composition, and described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or the assorted fibre mesh grid of being made by above fiber shuffling; Nonmetal short fiber comprises: one or more in vinal, polyethylene fibre, carbon fiber, the aramid fiber; The constituent of cement based matrix comprises: one or more in portland cement, high alumina cement, the sulphate aluminium cement, active mineral fine mineral admixture, and water reducing agent, meticulous sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
The material of described pozzolanic activity comprises one or more in flyash, silica flour, the granulated blast-furnace slag, and the maximum particle diameter of meticulous sand is less than 0.6mm.
In non metal fiber woven net and flock combined reinforced concrete base composite material, the nonmetal short fiber relatively percent by volume of this total composite volume is 1.5 ~ 2.5%.
The inner surface of described corner panel is distributed with some grooves; Described connection configuration is the sidewall shape of corner panel one side; Also pass through adhesive bond between the adjacent corners panel.
The present invention be connected with link slot by the connection configuration of polylith corner panel by the adjacent corners panel and described corner panel between transverse joint stagger mutually and connect and compose column template.
The present invention can be combined to form the template of required size and shape according to the quantity of adjusting the corner panel with needs and size, thereby forms complete template system.Also use the cementing agent bonding for the binding face between corner panel and the corner panel.The size of column template of the present invention can satisfy the needs of the difformity sizes such as square, rectangle according to actual needs by the size of adjusting the corner panel, adjust the needs that corner panel quantity satisfies the differing heights size.
Owing to adopt technical scheme of the present invention; the present invention used as template in the stage of building; after building moulding, need not remove, and double protected apron and the external protection of doing structure; become permanent formwork; itself cost is low and also eliminated demolition cost and turnover expense, and reduce project cost can improve and solve the problems such as dismounting in industry and the template constructions such as civilian construction structure, hydro-structure and sea, port structure and utilization rate; reduce construction intensity, can greatly shorten the engineering time.Meanwhile, because this template is made by self-compaction superhigh tenacity cement-base composite material, non metal fiber woven net and flock combined reinforced concrete base composite material or gauze wire cloth and flock combined reinforced concrete base composite material, have the characteristics such as high stretching ductility and Crack Control ability, damage tolerance is high, energy absorption capability is strong, can effectively reduce the harmful cracks of body structure surface generation and suppress crack progressing, its chloride-penetration resistance and anti-water permeation performance are much better than ordinary concrete, can significantly improve durability and the application life of concrete structure.Simultaneously, adopt the structure of corner panel of the present invention, column template is by corner panel assembly unit assembling, has to make simply, assemble easy to usely, and durability is high, controls the characteristics of crack developing.Column template provided by the present invention can also be born the part-structure load and reduce the column body amount of reinforcement, promotes overall efficiency.
Description of drawings
Fig. 1 (a) is the permanent column shuttering structural representation that corner panel of the present invention is connected into.
Fig. 1 (b) is the permanent column shuttering top view that corner panel of the present invention is connected into.
Fig. 2 (a) is the structural representation of corner panel of the present invention.
Fig. 2 (b) is the elevation of corner panel of the present invention.
Fig. 2 (c) is the top view of corner panel of the present invention.
Fig. 2 (d) is the lateral view of corner panel of the present invention.
Fig. 2 (e) is the A-A sectional view of Fig. 2 (b).
Fig. 2 (f) is the B-B sectional view of Fig. 2 (c).
Fig. 2 (g) is the C-C sectional view of Fig. 2 (c).
Fig. 3 (a) is the shaft side figures such as southwest of assembling schematic diagram of the present invention.
Fig. 3 (b) is the shaft side figures such as the southeast of assembling schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing but the mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering specific embodiment provided by the present invention is described further, this embodiment is to explanation of the present invention, rather than the present invention is made any restriction.
But a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering of present embodiment has 10 connection configurations by the adjacent corners panel of corner panel to be connected with link slot and described corner panel between transverse joint stagger mutually and connect and compose column template.Described corner panel 1 consists of main body with the first perpendicular panel 13 and the second panel 14; The wherein inboard of a side of described corner panel has the connection configuration 11 of projection, the opposite side of described corner panel have its size can with is connected the peg graft outwardly open link slot 10 of cooperations of configuration 11; Described corner panel selects following different materials to make: self-compaction superhigh tenacity cement-base composite material, non metal fiber woven net and flock combined reinforced concrete base composite material, gauze wire cloth and flock combined reinforced concrete base composite material.
The inner surface of described corner panel is distributed with some grooves 12; Described connection configuration 11 is the sidewall shape of corner panel one side; Also pass through adhesive bond between the adjacent corners panel.
As Fig. 3 (a) (b) shown in, below introduce the implementation method in the above-mentioned situation.
1. use self-compaction superhigh tenacity cement-base composite material to make ten of corner panels.Used self-compaction superhigh tenacity cement-base composite material (self-compaction UHTCC), its composition comprises cement, active mineral admixture, aggregate, fiber and water, and active mineral admixture adopts the combination of flyash or flyash and following one or more materials: silicon ash, granulated blast-furnace slag, metakaolin; The maximum particle diameter of aggregate is no more than 0.5mm, fiber is vinal, polyethylene fibre, the combination of one or more in the aromatic polyamide fibre, fibre length is 5~25mm, diameter is 0.015~0.055 mm, modulus of elasticity is 30 ~ 150GPa, tensile strength is 1000 ~ 3500MPa, ultimate elongation is 2%~15%, the weight ratio of cement and each component of active mineral admixture is: cement (12%~55%), flyash (45%~85%), silicon ash (0~15%), granulated blast-furnace slag (0~10%), metakaolin (0~20%), each components by weight sum of above cement and active mineral admixture satisfies 100%; The weight of aggregate is 1%~70% with the ratio of cement and active mineral admixture gross weight, the weight of water is 18%~58% with the ratio of cement and active mineral admixture gross weight, the volume of fiber is 1.5%~2.5% of cement-base composite material cumulative volume, and the high-efficiency water-reducing agent of poly-carboxylic acid volume is 0.1%~0.4% of cement-base composite material gross mass.
2. when assembling, the corner panel is carried out assembly unit from bottom to top, the corner panel should interlaced arrangement during assembling, thereby makes the panel transverse joint not on same straight line, uses the cementing agent bonding respectively to organize the cross section of corner panel, as Fig. 3 (a) (b) shown in.
During construction, can carry out according to the needs of real size size, quantity design and the assembling of corner panel, can realize that by the first template of adjustment corner panel and the width of the second template the cross section of different size is rectangle or foursquare column template, adjust the needs that corner panel quantity satisfies the differing heights size.Should adopt corner panel alternative splicing to finish the overall package of column template from bottom to top, assembling mode is varied.
It is simple, easy to use that the present invention has making, improves the characteristics of structure durability and control crack developing, satisfies easily the application of a large amount of engineerings.

Claims (10)

  1. But 1. mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering, it is characterized in that: it forms template by corner panel (1), and described corner panel (1) consists of main body with the first perpendicular panel and the second panel; The wherein inboard of a side of described corner panel has the connection configuration of projection, the opposite side of described corner panel have its size can with the outwardly open link slot that is connected configuration and peg graft cooperates, perhaps, the wherein outside of a side of described corner panel has the connection configuration of projection, the opposite side of described corner panel have its size can with is connected the peg graft link slot to inner opening of cooperation of configuration; Described corner panel selects following different materials to make: self-compaction superhigh tenacity cement-base composite material, non metal fiber woven net and flock combined reinforced concrete base composite material, gauze wire cloth and flock combined reinforced concrete base composite material.
  2. 2. but a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 1, it is characterized in that: used self-compaction superhigh tenacity cement-base composite material, its composition comprises cement, active mineral admixture, aggregate, fiber, polycarboxylate water-reducer and water, and active mineral admixture adopts the combination of flyash or flyash and following one or more materials: silicon ash, granulated blast-furnace slag, metakaolin; The maximum particle diameter of aggregate is no more than 0.5mm, fiber is one or more the combination in vinal, polyethylene fibre, the aromatic polyamide fibre, fibre length is that 5~25mm, diameter are that 0.015~0.055 mm, modulus of elasticity are that 30 ~ 150GPa, tensile strength are that 1000 ~ 3500MPa, ultimate elongation are 2%~15%, and the weight ratio of cement and each component of active mineral admixture is:
    Cement 12%~55%
    Flyash 45%~85%
    Silicon ash 0~15%
    Granulated blast-furnace slag 0~10%
    Metakaolin 0~20%
    Each components by weight sum of above cement and active mineral admixture satisfies 100%;
    The weight of aggregate is 1%~70% with the ratio of cement and active mineral admixture gross weight, the weight of water is 18%~58% with the ratio of cement and active mineral admixture gross weight, the volume of fiber is 1.5%~2.5% of cement-base composite material cumulative volume, and the polycarboxylate water-reducer volume is 0.1%~0.4% of gross mass.
  3. 3. but a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 2, it is characterized in that: described self-compaction superhigh tenacity cement-base composite material uses vinal, when three kinds of fibers of polyethylene fiber peacekeeping aromatic polyamide fibre strengthen simultaneously, and its proportioning is:
    Each components by weight of cement and active mineral admixture is: cement 25%, flyash 60%, silicon ash 2%, granulated blast-furnace slag 8%, metakaolin 5%;
    The maximum particle diameter of aggregate is 0.5mm, and aggregate weight is 40% with the ratio that cement adds the active mineral admixture gross weight, and the weight of water is 25% ~ 45% with the ratio that cement adds the active mineral admixture gross weight; The volume of fiber is 1.8% ~ 2.3% of cement-base composite material cumulative volume;
    The polyethylene fibre length that adopts is 12mm, and diameter is 0.039mm, and tensile strength is 1620MPa, and modulus of elasticity is 42.8GPa, and ultimate elongation is 6%, and volume is 1.2% ~ 1.5% of cement-base composite material cumulative volume; Polyethylene fibre length is 12.7mm, and diameter is 0.038mm, and tensile strength is 2700MPa, and modulus of elasticity is 120GPa, and ultimate elongation is 3.5%, and volume is 0.4% ~ 0.9% of cement-base composite material cumulative volume; Aromatic polyamide fibre length is 15mm, and diameter is 0.015mm, and tensile strength is 2800MPa, and modulus of elasticity is 132GPa, ultimate elongation 2.4%, and volume is 0.2% ~ 0.4% of cement-base composite material cumulative volume.
  4. 4. but a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 2, it is characterized in that: when described self-compaction superhigh tenacity cement-base composite material used vinal and two kinds of fibers of aromatic polyamide fibre to strengthen simultaneously when described cement-base composite material, its proportioning was:
    Each components by weight of cement and active mineral admixture is: cement 30%, flyash 52%, granulated blast-furnace slag 3%, metakaolin 15%;
    The maximum particle diameter of aggregate is 0.5mm, and aggregate weight is 65% with the ratio that cement adds the active mineral admixture gross weight, and the weight of water is 20% ~ 55% with the ratio that cement adds the active mineral admixture gross weight; The volume of fiber is 1.8% ~ 2.2% of cement-base composite material cumulative volume;
    The vinal length that adopts is 12mm, and diameter is 0.039mm, and tensile strength is 1620MPa, and modulus of elasticity is 42.8GPa, and ultimate elongation is 6%, and volume is 1.6% ~ 2.0% of cement-base composite material cumulative volume; Aromatic polyamide fibre length is 15mm, and diameter is 0.015mm, and tensile strength is 2800MPa, and modulus of elasticity is 132GPa, ultimate elongation 2.4%, and volume is 0.2% ~ 0.4% of cement-base composite material cumulative volume.
  5. 5. but a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 2, it is characterized in that: when described self-compaction superhigh tenacity cement-base composite material used vinal and two kinds of fibers of polyethylene fibre to strengthen simultaneously when described cement-base composite material, its proportioning was:
    Each components by weight of cement and active mineral admixture is: cement 55%, flyash 45%, the model of cement are P.II 52.5 R;
    The maximum particle diameter of aggregate is 0.5mm, and the weight of aggregate is 50% with the ratio that cement adds the active mineral admixture gross weight, and the weight of water is 40% ~ 55% with the ratio that cement adds the active mineral admixture gross weight; The volume of fiber is 1.8% ~ 2.2% of cement-base composite material cumulative volume;
    The vinal length that adopts is 12mm, and diameter is that 0.039mm, tensile strength are that 1620MPa, modulus of elasticity are that 42.8GPa, ultimate elongation are 6%, and volume is 1.2% ~ 1.9% of fibrous concrete cumulative volume; Polyethylene fibre length is 12.7mm, and diameter is 0.038mm, and tensile strength is 2700MPa, and modulus of elasticity is 120GPa, and ultimate elongation is 3.5%, and volume is 0.3% ~ 0.8% of cement-base composite material cumulative volume.
  6. 6. but a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 1, it is characterized in that: described non metal fiber woven net and flock combined reinforced concrete base composite material are by non metal fiber woven net, nonmetal short fiber and cement based matrix composition, and described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or the assorted fibre mesh grid of being made by above fiber shuffling; Nonmetal short fiber comprises: one or more in vinal, polyethylene fibre, carbon fiber, the aramid fiber; The constituent of cement based matrix comprises: one or more in portland cement, high alumina cement, the sulphate aluminium cement, active mineral fine mineral admixture, and water reducing agent, meticulous sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
  7. But 7. a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 6, it is characterized in that: the material of pozzolanic activity comprises one or more in flyash, silica flour, the granulated blast-furnace slag, the maximum particle diameter of meticulous sand is less than 0.6mm.
  8. 8. but a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 6, it is characterized in that: in non metal fiber woven net and flock combined reinforced concrete base composite material, the nonmetal short fiber relatively percent by volume of this total composite volume is 1.5 ~ 2.5%.
  9. But 9. a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shuttering according to claim 1, it is characterized in that: the inner surface of described corner panel is distributed with some grooves; Described connection configuration is the sidewall shape of corner panel one side; Also pass through adhesive bond between the adjacent corners panel.
  10. 10. but it is characterized in that according to claim 1 or 9 described a kind of mutual buckle type assembly unit anti-cracking and seepage control permanent column shutterings: it be connected with link slot by the connection configuration of polylith corner panel by the adjacent corners panel and described corner panel between transverse joint stagger mutually and connect and compose column template.
CN201210431018.8A 2012-10-31 2012-10-31 A kind of mutual buckle type can assembled anti-cracking and seepage control permanent column shuttering CN102912975B (en)

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CN105019600A (en) * 2015-08-04 2015-11-04 万保金 Disassembly-free precast concrete frame column template
CN107567525A (en) * 2015-01-31 2018-01-09 哨兵保护有限责任公司 Post protector and post protection system
CN108360811A (en) * 2018-02-08 2018-08-03 中国矿业大学 A kind of TRC pin joints formula can assembled permanent formwork and preparation method thereof
CN108532830A (en) * 2018-04-20 2018-09-14 青岛理工大学 Square-outside and round-inside splicing column and its construction method
CN108560825A (en) * 2018-04-20 2018-09-21 青岛理工大学 Circular hollow interlayer splicing column and its construction method
CN109779240A (en) * 2019-01-17 2019-05-21 东南大学 A kind of L-type closed type permanent column shuttering
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CN107567525A (en) * 2015-01-31 2018-01-09 哨兵保护有限责任公司 Post protector and post protection system
US10648175B2 (en) 2015-01-31 2020-05-12 Sentry Protection Llc Column protector and column protection system
CN105019600A (en) * 2015-08-04 2015-11-04 万保金 Disassembly-free precast concrete frame column template
CN108360811A (en) * 2018-02-08 2018-08-03 中国矿业大学 A kind of TRC pin joints formula can assembled permanent formwork and preparation method thereof
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