CN102828579A - Keel embedded-buckled assembling anti-cracking anti-seepage permanent cylinder shuttering - Google Patents

Abstract

The invention discloses a keel embedded buckle-type formwork for an assembled, anti-crack and anti-seepage permanent column, which comprises formwork corner panels and connectors. The invention is used as a column formwork in the column pouring stage of industrial and civil building structures, hydraulic structures, harbor and sea structures, etc., and is used as a protective plate and outer protective layer of the structure after pouring and forming, and bears a part of the load. The formwork provided by the present invention can be made of the following different types of materials: ultra-high toughness cement-based composite material UHTCC, non-metallic fiber woven mesh short-fiber combined reinforced cement-based composite material, steel wire mesh short-fiber combined reinforced cement-based composite material, etc. , has the characteristics of simple manufacture, convenient use, high durability, and control of crack development.

Description

A keel-embedded buckle-type formwork for an assembled, anti-crack, and anti-seepage permanent column

technical field

The patent of the invention belongs to a building formwork, specifically a high-durability permanent formwork mainly used for columns of industrial and civil building structures, hydraulic structures, and harbor and sea structures, and used as a formwork in the pouring stage , after pouring and molding, it can also be used as the protective plate and outer protective layer of the structure, and bear part of the structural load at the same time.

Background technique

At present, in the field of domestic construction, the columns of industrial and civil building structures, hydraulic structures, and harbor and sea structures usually use wooden formwork, steel formwork and other formwork, which has the disadvantages of large consumption, inconvenient disassembly and assembly, high turnover costs, and low utilization rate. low disadvantages. Durability has always been one of the main problems faced by reinforced concrete structures. In the traditional structure, the surface of ordinary concrete is naturally exposed, and its durability is low. At present, about 50% of the houses in our country have entered the aging stage, that is, 2.34 billion square meters of buildings are facing durability problems. In addition, designing with crack resistance as the control condition is an important feature that distinguishes hydraulic structures, port and sea structures, etc. from other types of building structures. The easy cracking of ordinary concrete will not only affect the normal work of hydraulic structures, but also affect their durability. Sexuality and service life, seriously even affect the safe operation of the structure. The above points have always been difficult problems to solve in the construction and use of industrial and civil building structures, hydraulic structures, and harbor and sea structures.

Contents of the invention

The technical problem to be solved by the present invention is to provide a keel-embedded permanent column formwork that can be assembled to prevent cracking and seepage, so as to improve the unfavorable factors brought by the traditional formwork, improve the durability of the structure, reduce the maintenance cost of the structure and finally extend the The service life of structure, for this reason, the present invention adopts following technical scheme:

It consists of a corner panel and a connecting strip; the main body of the corner panel is composed of a vertical first panel and a second panel, and the two sides of the corner panel have connecting parts protruding to the inside or outside of the corner panel; the connection The cross section of the strip is a concave groove, and the concave groove is fastened with the adjacent connection parts of the two adjacent corner panels on the left and right to connect the connecting strip and the two adjacent corner panels on the left and right. And the connection bar is made of the following materials: ultra-high toughness cement-based composite material UHTCC, non-metallic fiber woven mesh and short fiber combined reinforced cement-based composite material, steel wire mesh and short fiber combined reinforced cement-based composite material.

On the basis of adopting the above-mentioned technical solution, the present invention can also adopt the following further technical solutions:

The ultra-high toughness cement-based composite material UHTCC used includes cement, active mineral admixtures, aggregates, fibers and water. The active mineral admixtures are fly ash or fly ash combined with one or more of the following Combination of materials: silica fume, granulated blast furnace slag, metakaolin; the maximum particle size of the aggregate is not more than 0.5mm, and the fiber is one or more of polyvinyl alcohol fiber, polyethylene fiber, and aramid fiber The combination of fiber length is 5-25mm, diameter is 0.015-0.055 mm, elastic modulus is 30-150GPa, tensile strength is 1000-3500MPa, ultimate elongation is 2%-15%, cement and active minerals are blended The weight ratio of each component of the material is:

Cement 12%～55%

Fly ash 45%～85%

Silica fume 0～15%

Granulated blast furnace slag 0～10%

Metakaolin 0～20%

The sum of the weight ratios of the above cement and active mineral admixture components meets 100%;

The ratio of the weight of aggregate to the total weight of cement and active mineral admixture is 1% to 70%, the ratio of water to the total weight of cement and active mineral admixture is 18% to 58%, and the amount of fiber is 1.5% to 2.5% of the total volume of cement-based composite materials.

When the ultra-high toughness cement-based composite material UHTCC is simultaneously reinforced with three kinds of fibers: polyvinyl alcohol fiber, polyethylene fiber and aramid fiber, the ratio is:

The weight ratio of each component of cement and active mineral admixture is: 25% of cement, 60% of fly ash, 2% of silica fume, 8% of granulated blast furnace slag, and 5% of metakaolin;

The maximum particle size of aggregate is 0.5mm, the ratio of aggregate weight to the total weight of cement plus active mineral admixture is 40%, the ratio of water weight to the total weight of cement plus active mineral admixture is 25%~45% ; The amount of fiber is 1.8%~2.3% of the total volume of the cement-based composite material;

The length of the polyethylene fiber used is 12mm, the diameter is 0.039mm, the tensile strength is 1620MPa, the elastic modulus is 42.8GPa, the ultimate elongation is 6%, and the dosage is 1.2%~1.5% of the total volume of the cement-based composite material ;The length of polyethylene fiber is 12.7mm, the diameter is 0.038mm, the tensile strength is 2700MPa, the elastic modulus is 120GPa, the ultimate elongation is 3.5%, and the dosage is 0.4%~0.9% of the total volume of the cement-based composite material; The length of the aramid fiber is 15mm, the diameter is 0.015mm, the tensile strength is 2800MPa, the elastic modulus is 132GPa, the ultimate elongation is 2.4%, and the dosage is 0.2%~0.4% of the total volume of the cement-based composite material.

When the ultra-high toughness cement-based composite material UHTCC is reinforced with polyvinyl alcohol fiber and aramid fiber at the same time, the ratio is:

The weight ratio of each component of cement and active mineral admixture is: cement 30%, fly ash 52%, granulated blast furnace slag 3%, metakaolin 15%;

The maximum particle size of aggregate is 0.5mm, the ratio of aggregate weight to the total weight of cement plus active mineral admixture is 65%, the ratio of water weight to the total weight of cement plus active mineral admixture is 20%~55% ; The amount of fiber is 1.8%~2.2% of the total volume of the cement-based composite material;

The length of the polyvinyl alcohol fiber used is 12mm, the diameter is 0.039mm, the tensile strength is 1620MPa, the elastic modulus is 42.8GPa, the ultimate elongation is 6%, and the dosage is 1.6%~2.0% of the total volume of the cement-based composite material. %; The length of aramid fiber is 15mm, the diameter is 0.015mm, the tensile strength is 2800MPa, the elastic modulus is 132GPa, the ultimate elongation is 2.4%, and the dosage is 0.2%~0.4% of the total volume of the cement-based composite material .

When the ultra-high toughness cement-based composite material UHTCC is simultaneously reinforced with two kinds of fibers, polyvinyl alcohol fiber and polyethylene fiber, the ratio is:

The weight ratio of each component of cement and active mineral admixture is: cement 55%, fly ash 45%, and the model of cement is P.II 52.5 R;

The maximum particle size of the aggregate is 0.5mm, the ratio of the weight of the aggregate to the total weight of cement plus active mineral admixture is 50%, the ratio of the weight of water to the total weight of cement plus active mineral admixture is 40%~55 %; the amount of fiber is 1.8%~2.2% of the total volume of cement-based composite materials;

The length of the polyvinyl alcohol fiber used is 12mm, the diameter is 0.039mm, the tensile strength is 1620MPa, the elastic modulus is 42.8GPa, the ultimate elongation is 6%, and the dosage is 1.2%~1.9% of the total volume of fiber concrete; The length of polyethylene fiber is 12.7mm, the diameter is 0.038mm, the tensile strength is 2700MPa, the elastic modulus is 120GPa, the ultimate elongation is 3.5%, and the dosage is 0.3%~0.8% of the total volume of the cement-based composite material.

The non-metallic fiber braided mesh and short fiber joint reinforced cement-based composite material are composed of non-metallic fiber braided mesh, non-metallic short fibers and cement-based matrix, and the non-metallic fiber braided mesh includes: carbon fiber braided mesh, aramid fiber braided mesh Net, alkali-resistant glass fiber woven net, polyvinyl alcohol fiber woven net, polyethylene fiber woven net or hybrid fiber woven net made of the above fibers; non-metal short fibers include: polyvinyl alcohol fiber, polyethylene fiber, carbon fiber , one or more of aramid fibers; the composition of the cement-based matrix includes: Portland cement, high alumina cement, one or more of sulphoaluminate cement, active mineral fine admixtures, water reducing agent, fine sand, and the active mineral fine admixture is a material with pozzolanic activity.

Volcanic ash active materials include one or more of fly ash, silica fume, and granulated blast furnace slag, and the maximum particle size of fine sand is less than 0.6mm.

In the non-metal fiber woven mesh and short fiber joint reinforced cement-based composite material, the volume percentage of non-metal short fiber relative to the total volume of the composite material is 1.5-2.5%.

There are several grooves distributed on the inner surface of the corner panel; several grooves are distributed on the outer surface of the connecting strip; The sum of the thicknesses of the adjacent side walls of the two adjacent panels on the left and right is matched, and is fastened with the adjacent side walls of the two adjacent panels on the left and right. Adjacent corner panels, and between the corner panels and the connecting strips are bonded by an adhesive.

In the present invention, a plurality of corner panels are connected with a plurality of connecting strips and the transverse joints between the corner panels are staggered from each other, and the joints between the connecting strips and the transverse joints between the corner panels are staggered from each other to form a column formwork.

The present invention can adjust the number and size of the corner panels according to the needs of use to form a column formwork of the required size and shape. At the same time, the connecting strip can ensure the connection between the corner panels, thereby forming a complete formwork system. The size of the column formwork of the present invention can meet the needs of different shapes and sizes such as squares and rectangles by adjusting the size of the corner panels according to actual needs, and adjust the number of corner panels and connecting bars to meet the needs of different heights.

Due to the adoption of the technical scheme of the present invention, the present invention is used as a formwork in the pouring stage. After pouring and forming, it does not need to be dismantled, but also serves as a protective plate and an outer protective layer of the structure to become a permanent formwork, which has low cost and eliminates the need for demolition. Dismantling costs and turnover costs, reducing project costs, can improve and solve problems such as dismantling and utilization in formwork construction of industrial and civil building structures, hydraulic structures, and harbor and sea structures, reduce construction intensity, and greatly shorten construction time. At the same time, since the formwork is made of ultra-high toughness cement-based composite material, non-metallic fiber woven mesh and short-fiber joint-reinforced cement-based composite material or steel wire mesh and short-fiber joint-reinforced cement-based composite material, it has high tensile ductility And crack control ability, high damage tolerance, strong energy absorption ability, etc., can effectively reduce the harmful cracks on the surface of the structure and inhibit the development of cracks. Its resistance to chloride ion penetration and water penetration is far superior to ordinary concrete, which can significantly improve Durability and service life of concrete structures. At the same time, by adopting the structure of the panels and connectors of the present invention, the formwork is assembled by the panels and connectors, which has the characteristics of simple manufacture, convenient assembly and use, high durability, and crack development control. The column formwork provided by the present invention can also bear part of the structural load and reduce the amount of reinforcement inside the column, thereby improving the overall benefit.

Description of drawings

Fig. 1(a) is a schematic structural diagram of a permanent column formwork formed by combining corner panels and connecting bars of the present invention.

Fig. 1(b) is a top view of the permanent column formwork formed by combining the corner panels and connecting bars of the present invention.

Fig. 2(a) is a schematic structural view of the corner panel of the present invention.

Fig. 2(b) is a front view of the corner panel of the present invention.

Fig. 2(c) is a top view of the corner panel of the present invention.

Figure 2(d) is a side view of the corner panel of the present invention.

Fig. 2(e) is an A-A sectional view of Fig. 2(b).

Fig. 2(f) is a B-B sectional view of Fig. 2(c).

Fig. 3(a) is a structural schematic diagram of the connecting bar of the present invention.

Fig. 3(b) is a top view of the connecting bar of the present invention.

Fig. 3(c) is a C-C sectional view of Fig. 3(b).

Figure 4(a) is a southwest isometric view of an assembled schematic of the present invention.

Figure 4(b) is a southeast isometric view of an assembled schematic of the present invention.

Detailed ways

The specific implementation of the keel-embedded, crack-proof and anti-seepage permanent column formwork provided by the present invention will be further described below in conjunction with the accompanying drawings. This implementation example is an illustration of the present invention, rather than limiting the present invention.

A kind of keel-embedded buckle-type permanent column formwork that can be assembled to prevent cracking and seepage in this embodiment is connected by ten corner panels 1 and twelve connecting strips 2, and the transverse seams between the corner panels are staggered from each other, and the connecting strips are connected to each other. The joints between the corner panels and the horizontal joints between the corner panels are staggered and connected. The corner panel 1 is composed of a vertical first panel 13 and a second panel 14, and the two sides of the corner panel 1 have connecting parts 10 protruding to the inside or outside of the corner panel; the cross section of the connecting strip 2 It is a concave groove, and the concave groove is fastened with the adjacent connecting parts 10 of the two adjacent corner panels on the left and right to connect the connecting strip and the two adjacent corner panels on the left and right. The corner panel and the connecting strip The following materials are selected for production: ultra-high toughness cement-based composite material UHTCC, non-metal fiber woven mesh and non-metallic short fiber combined reinforced cement-based composite material, steel wire mesh and short fiber combined reinforced cement-based composite material.

The inner surface of the corner panel 1 is distributed with several grooves 11; the outer surface of the connecting strip 2 is distributed with several grooves 21; the connecting part 10 is in the shape of side walls on both sides of the corner panel, and the connecting strip The width of the concave groove is adapted to the sum of the thicknesses of the adjacent side walls of the two adjacent panels on the left and right, and is fastened with the adjacent side walls of the two adjacent panels on the left and right. Next, the adjacent corner panels 1, and between the corner panels 1 and the connecting strips 2 are bonded by an adhesive.

As shown in Figure 4(a)(b), the following describes the implementation method in the above situation.

1. Use the ultra-high toughness cement-based composite material UHTCC to make the corner panel 1 and the connecting strip 2. The components of the ultra-high toughness cement-based composite material UHTCC include cement, active mineral admixtures, aggregates, fibers and water. The mineral admixture is made of fly ash or a combination of fly ash and one or more of the following materials: silica fume, granulated blast furnace slag, metakaolin; the maximum particle size of the aggregate is not more than 0.5mm, and the fiber is polyethylene Alcohol fiber, polyethylene fiber, aromatic polyamide fiber or a combination of one or more, the fiber length is 5-25mm, the diameter is 0.015-0.055 mm, the elastic modulus is 30-150GPa, and the tensile strength is 1000 ~3500MPa, the ultimate elongation is 2%~15%, the weight ratio of cement and active mineral admixture components is: cement (12%~55%), fly ash (45%~85%), silicon Ash (0-15%), granulated blast furnace slag (0-10%), metakaolin (0-20%), the sum of the weight ratios of the above cement and active mineral admixtures meets 100%; aggregate The ratio of weight to the total weight of cement and active mineral admixture is 1% to 70%, the ratio of water to the total weight of cement and active mineral admixture is 18% to 58%, and the amount of fiber is cement-based composite 1.5% to 2.5% of the total volume of the material.

2. When assembling, assemble the corner panels 1 from bottom to top. When assembling, the corner panels should be arranged in a staggered manner so that the transverse joints of the corner panels are not on the same straight line. Adhesives are used to bond the sections of each group of corner panels, such as Figure 4(a)(b) shows.

3. Use the connecting strip 2 to connect the joints in the middle of the corner panels, and use adhesive to bond each surface, as shown in Figure 4(a)(b). The seam of the connecting strip 2 should be staggered with the transverse seam of the corner panel so that they are not on the same straight line.

During construction, the size design and assembly of the corner panel and connecting strip can be carried out according to the actual size requirements. By adjusting the width of the first formwork and the second formwork of the corner panel, column formwork with rectangular or square cross-sections of different sizes can be realized. Adjust the number of corner panels and connecting bars to meet the needs of different heights. The overall assembly of the column formwork should be completed by alternate splicing of corner panels and connectors from bottom to top, and there are various assembly methods.

The invention has the characteristics of simple manufacture, convenient use, improved structural durability and controlled crack development, and is easy to meet the application of a large number of projects.

Claims (10)

1. But 1. permanent column template of keel imbedded and fastened assembly unit anti-cracking and seepage control, it is characterized in that: it forms template by corner panel (1) and connection strap (2); Said corner panel (1) constitutes main body with the first perpendicular panel and second panel, and the both sides of corner panel have to the protruding connecting portion in the inboard of corner panel or the outside; The cross section of said connection strap (2) is a concave groove; The adjacent connecting portion of two corner panels that the said Baltimore groove and the left and right sides are adjacent fastens and two corner panels that connection strap is adjacent with the left and right sides link together, and said corner panel and connection strap are selected following different materials making for use: superhigh tenacity cement-base composite material UHTCC, 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 the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control according to claim 1; It is characterized in that: used superhigh tenacity cement-base composite material 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 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, and the weight of water is 18%～58% with the ratio of cement and active mineral admixture gross weight, and the volume of fiber is 1.5%～2.5% of a cement-base composite material cumulative volume.
3. 3. but the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control according to claim 2; It is characterized in that: when described superhigh tenacity cement-base composite material UHTCC use vinal, when three kinds of fibers of polyethylene fiber peacekeeping aromatic polyamide fibre strengthen simultaneously, its proportioning is:

   The weight ratio of cement and each component of 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 a 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 a 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 a 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 a cement-base composite material cumulative volume.
4. 4. but the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control according to claim 2; It is characterized in that: when described superhigh tenacity cement-base composite material UHTCC used vinal and two kinds of fibers of aromatic polyamide fibre to strengthen simultaneously, 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 a 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 a 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 a cement-base composite material cumulative volume.
5. 5. but the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control according to claim 2; It is characterized in that: when described superhigh tenacity cement-base composite material UHTCC used vinal and two kinds of fibers of polyethylene fibre to strengthen simultaneously, 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 a 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 a 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 a cement-base composite material cumulative volume.
6. 6. but the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control according to claim 1; It is characterized in that: said non metal fiber woven net and flock combined reinforced concrete base composite material are made up of non metal fiber woven net, nonmetal short fiber and cement based matrix, and said 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 processed 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, said active mineral fine mineral admixture is the material with pozzolanic activity.
7. 7. but the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control 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, and the maximum particle diameter of meticulous sand is less than 0.6mm.
8. 8. but the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control 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 percent by volume of this total composite volume relatively is 1.5 ~ 2.5%.
9. But 9. the permanent column template of a kind of keel imbedded and fastened assembly unit anti-cracking and seepage control according to claim 1, it is characterized in that: the inner surface of said corner panel (1) is distributed with some grooves; The outer surface of said connection strap (2) is distributed with some grooves; Said connecting portion is corner panel side walls shape; The adjacent wall thickness summation of two panels that the Baltimore groove width of said connection strap is adjacent with the left and right sides is suitable; And the adjacent wall of the two piece panels adjacent with the said left and right sides is interlocked; Join before and after the connection strap of same row, between the said adjacent corner panel (1), also pass through adhesive bond between corner panel (1) and the connection strap (2).
10. 10. but according to claim 1 or the permanent column template of 9 described a kind of keel imbedded and fastened assembly unit anti-cracking and seepage controls, it is characterized in that: it be connected with many connection straps by polylith corner panel and said corner panel between transverse joint stagger mutually, the seam between connection strap and the transverse joint between the corner panel stagger each other and connect and compose column template.

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