CN110698813B - Nondestructive repair method for buoyancy block of marine riser - Google Patents
Nondestructive repair method for buoyancy block of marine riser Download PDFInfo
- Publication number
- CN110698813B CN110698813B CN201910940871.4A CN201910940871A CN110698813B CN 110698813 B CN110698813 B CN 110698813B CN 201910940871 A CN201910940871 A CN 201910940871A CN 110698813 B CN110698813 B CN 110698813B
- Authority
- CN
- China
- Prior art keywords
- buoyancy block
- repair
- breaking
- floating body
- blind holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
Abstract
The invention discloses a nondestructive repair method for a buoyancy block of an ocean riser, which comprises the following steps: drilling a fracture surface of the buoyancy block; pre-folding a fracture surface; uniformly brushing a slow-drying binder on the hole and the fracture surface; paving and repairing floating body materials and installing reinforcing rib rods; folding the broken buoyancy blocks; standing, curing and solidifying and reinforcing the surface of the broken joint. The nondestructive repair method has the advantages that the amount of repair floating body materials used for repair is small, the requirements on repair environment, personnel level and equipment are low, the repair method is easy to operate, the standardized repair operation can be realized, and the repair period and the repair economy are superior to those of the existing repair method; the method has the advantages that the bonding and positioning repair are directly carried out along the existing fracture surface, the repaired fracture has good coincidence, and the repaired floating body material with the thickness of about 5-8 mm is filled between the fractures, so that the nondestructive repair is realized, the integral structure of the buoyancy block is prevented from being damaged, and the repair quality is easier to ensure.
Description
Technical Field
The invention belongs to the technical field of buoyancy block repairing methods, and particularly relates to a nondestructive repairing method for a buoyancy block of an ocean riser.
Background
The existing marine riser buoyancy block mainly uses a composite foam buoyancy material, and is composed of high-strength composite hollow spheres with the diameter of 5-50mm, hollow microspheres, fibers, epoxy resin and the like, and although the material is low in density, high in strength and low in manufacturing cost, the material is easily damaged or broken under the action of shearing force generated by violent impact, bending moment of a marine riser string and severe marine environment.
For a broken buoyancy block, in the prior art, when repairing: the method comprises the steps of firstly cutting an irregular section into a regular section vertical to the axial direction, then adding a section of repairing floating body identical to the raw material between two fracture bodies by using professional equipment for manufacturing a buoyancy block, and slotting and embedding a plurality of reinforcing ribs between the two fracture bodies and the outer surface of the repairing floating body to finish repairing. The repairing technology has the problems of destroying the integral structure of the buoyancy block, large using amount of repairing materials, excessively depending on special production equipment for the buoyancy block and the like, has larger probability of secondary fracture after repairing, poorer economy and longer construction period, and is only suitable for repairing the buoyancy block with only one fracture surface.
Disclosure of Invention
The invention aims to provide a nondestructive repair method for a buoyancy block of an ocean riser, and solves the problems that the existing buoyancy block repair technology is easy to damage the overall structure of the buoyancy block, has high probability of secondary fracture after repair, and is only suitable for repairing the buoyancy block with only one fracture surface.
The technical scheme adopted by the invention is that the nondestructive repair method for the buoyancy block of the marine riser comprises the following steps:
step 1, taking a breaking buoyancy block I and a breaking buoyancy block II on two sides of a buoyancy block fault, removing stains on a breaking surface of the breaking buoyancy block I and a breaking surface of the breaking buoyancy block II, arranging a blind hole I along the breaking surface of the breaking buoyancy block I, arranging blind holes II along the breaking surface of the breaking buoyancy block II, and enabling the blind holes I and the blind holes II to be located on the same central axis;
step 2, respectively fixing the rupture buoyancy blocks I and the rupture buoyancy blocks II processed in the step 1 on a tool, pre-folding fracture surfaces of the rupture buoyancy blocks I and the rupture surfaces of the rupture buoyancy blocks II, and measuring seam gaps during folding; when the seam clearance is larger than 1.5mm, the quick-drying adhesive and the floating body material are sequentially adopted for local repair of the fracture surface, and when the seam clearance is not larger than 1.5mm, the next step is continued;
step 3, after the treatment of the step 2, brushing slow-drying adhesives on the surfaces of the two fracture surfaces, and simultaneously filling the slow-drying adhesives into the blind holes I and II in a vacuum manner;
step 4, brushing floating body materials on the surfaces of the two fracture surfaces processed in the step 3, filling the blind holes I and II with the floating body materials, and then placing a reinforcing rib rod in the blind holes I and II;
and 6, standing the folded buoyancy block for 24 hours, prolonging the maintenance time to 48 hours when the daily average temperature is not more than 10 ℃, polishing and cleaning the overflowing floating body material part along the folding crack after the maintenance is finished, and then sequentially paving glass fiber felts and glass fiber cloth on the outer wall of the folded buoyancy block by using a quick-drying adhesive to finish the repair.
The present invention is also characterized in that,
in the step 1, the depth of the blind hole I and the blind hole II is 2-3 times of the total thickness of the buoyancy block before fracture;
the blind holes I and the blind holes II are same in number and are in one-to-one correspondence, the number of the blind holes I and the blind holes II is 4-6, and the aperture is
In the step 2, the floating body material comprises the following components in parts by mass: the mass ratio of the epoxy resin curing agent to the epoxy resin to the hollow microsphere is 0.7;
the particle size of the hollow microsphere is 20-150 μm.
In the step 2, the quick-drying adhesive comprises the following components in parts by mass: 0.2.
In the step 3, the thickness of the slow-dry adhesive coated on the surfaces of the two fracture surfaces is 2-3mm;
the depth of vacuum infusion is not less than 2/3 of the depth of the blind holes I and II.
The slow-drying binder in the step 3 comprises the following components in parts by mass: 0.2 mass ratio of polypropylene glycol diglycidyl ether diluent, HYY204 type curing agent and epoxy resin.
In the step 4, the thickness of the floating body repairing material coated on the surfaces of the two fracture surfaces is 10-12mm;
the depth of pouring is not less than 1/3 of the depth of the blind holes I and II.
The reinforcing rib rod in the step 4 is specifically a glass fiber rib or a basalt fiber rib.
The clamping parameters in step 5 are as follows: 300-350 kg of clamping force and 2-2.5h of clamping time.
In the step 6, the laying thickness of the glass fiber felt and the glass fiber cloth is 4-6mm.
The invention has the beneficial effects that:
(1) Compared with the traditional method, the nondestructive repair method uses the composite hollow spheres, fills the composite hollow spheres with the repair floating body material prepared from the hollow microspheres, uses 1.5-3 kilograms of repair material for each fracture surface according to different areas of each fracture surface, controls the dry weight of the buoyancy block of the water isolation pipe to be within +/-5% of the original value after repair, and basically has no loss of buoyancy after repair;
(2) The nondestructive repair method has the advantages that the amount of repair floating body materials used for repair is small, the requirements on repair environment, personnel level and equipment are low, the repair method is easy to operate, the standardized repair operation can be realized, and the repair period and the repair economy are superior to those of the existing repair method;
(3) According to the nondestructive repair method, the glass fiber rib is used as the internal reinforcing rib, compared with materials such as carbon fiber ribs and aramid fiber ribs, the elastic modulus is lower, the tensile strength is higher, and the bending resistance and tensile resistance effects of the repaired fracture buoyancy block are obviously enhanced;
(4) The nondestructive repair method adopts the direct bonding, positioning and repair along the existing fracture surface, the repaired fracture has good coincidence, and the repaired floating body material with the thickness of about 5-8 mm is filled between the fractures, so that the nondestructive repair is realized, the damage to the integral structure of the buoyancy block is avoided, and the repair quality is easier to ensure.
Drawings
FIG. 1 is a schematic structural diagram of the surface of a fractured buoyancy block in the method for nondestructive repair of a buoyancy block of a marine riser according to the invention;
fig. 2 isbase:Sub>A schematic structural view ofbase:Sub>A sectionbase:Sub>A-base:Sub>A in fig. 1.
In the figure, 1, a reinforcing bar rod, 2, a slow-drying adhesive, 3, a glass fiber felt, 4, a glass fiber cloth, 5, an original surface protective layer of a breaking buoyancy block, 6, a breaking buoyancy block I,7, a floating body material, 8, a quick-drying adhesive, 9, a breaking buoyancy block II,10, a blind hole I,11 and a blind hole II are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a nondestructive repair method for a buoyancy block of a marine riser, which comprises the following steps:
step 1, taking a breaking buoyancy block I6 and a breaking buoyancy block II9 on two sides of a buoyancy block fault, cleaning stains on a breaking surface of the breaking buoyancy block I6 and a breaking surface of the breaking buoyancy block II9, forming blind holes I10 along the breaking surface of the breaking buoyancy block I6, forming blind holes II11 along the breaking surface of the breaking buoyancy block II9, and enabling the blind holes I10 and the blind holes II11 to be located on the same central axis;
the depth of the blind hole I10 and the blind hole II11 is 2-3 times of the total thickness of the buoyancy block before fracture; the blind holes I10 and the blind holes II11 are the same in number and are in one-to-one correspondence, the number of the blind holes I10 and the blind holes II11 is 4-6, and the aperture is
The specific distribution number and distribution positions of the blind holes are calculated through a mechanical model of the specific shape of the section and are generally uniformly distributed.
Step 2, respectively fixing the breaking buoyancy block I6 and the breaking buoyancy block II9 processed in the step 1 on a tool, pre-folding the breaking surface of the breaking buoyancy block I6 and the breaking surface of the breaking buoyancy block II9, and measuring a seam gap during folding; when the seam clearance is larger than 1.5mm, the quick-drying adhesive 8 and the floating body material 7 are sequentially adopted for local repair of the fracture surface, and when the seam clearance is not larger than 1.5mm, the next step is continued;
the floating body material 7 comprises the following mass components: the epoxy resin curing agent, the epoxy resin and the hollow microspheres in a mass ratio of 0.7; the particle size of the hollow microsphere is 20-150 μm.
As an important component of the floating body material, the properties of the hollow microspheres, the viscosity of the epoxy resin and the curing agent, the curing process and the like can directly influence the repair process and the final performance of the buoyancy block. When the strength of the hollow micro-beads is too low, the hydrostatic pressure resistance of the repaired section of the repaired buoyancy block is poor, and cracks and other defects are easy to occur; when the viscosity of the resin is too low, the bending performance of the repairing floating body material is poor, the crack repairing anti-bending capacity of the repairing buoyancy block is poor, and the repairing buoyancy block is easy to fracture again; when the viscosity of the resin is too high, the mixing is easy to generate non-uniformity during the preparation, the repair defects are easy to generate, and the flaw detection passing rate is low; the curing time is too short, the operation time for repairing the buoyancy block is short, and the repairing quality is unstable; if the curing time is too long, the curing of the repair crack surface repair floating body material is not uniform, and even repair cracks occur.
According to the invention, various material performances are reasonably selected according to the buoyancy block repairing process, hollow microspheres with three strengths are respectively selected at the water depths of 1000m, 2000m and 3000m, the viscosity (25 ℃) of epoxy resin is 9000-14000mPa.s, the viscosity (25 ℃) of curing agent I is 6000-10000 mPa.s, the viscosity (25 ℃) of curing agent II is 400-1000mPa.s, and the curing time is 12-16 hours at normal temperature.
The quick-drying adhesive 8 comprises the following components in parts by mass: 0.2.
Step 3, after the treatment of the step 2, brushing slow-drying adhesive 2 on the surfaces of the two fracture surfaces, and simultaneously filling the slow-drying adhesive 2 into the blind hole I10 and the blind hole II11 in a vacuum manner;
the thickness of the slow dry adhesive 2 coated on the surfaces of the two fracture surfaces is 2-3mm;
the depth of vacuum infusion is not less than 2/3 of the depth of the blind holes I10 and II 11.
The slow-drying binder 2 comprises the following components in parts by mass: 0.2 mass ratio of polypropylene glycol diglycidyl ether diluent, HYY204 type curing agent and epoxy resin.
Step 4, brushing floating body materials 7 on the surfaces of the two fracture surfaces processed in the step 3, filling the floating body materials 7 into the blind holes I10 and II11, and then placing a reinforcing rib rod 1 in the blind holes I10 and II 11;
the thickness of the floating body material 7 for repairing the surfaces of the two fracture surfaces by brushing is 10-12mm;
the depth of pouring is not less than 1/3 of the depth of the blind holes I10 and II 11.
The reinforcing bar rod 1 is specifically a glass fiber bar or a basalt fiber bar because of its advantages of high strength and light weight.
And 6, standing the folded buoyancy block for 24 hours, prolonging the maintenance time to 48 hours when the daily average temperature is not more than 10 ℃, polishing and cleaning the overflowing part of the floating body material 7 along the folded crack after the maintenance is finished, and then sequentially paving glass fiber felt 3 and glass fiber cloth 4 on the outer wall of the folded buoyancy block by using quick-drying adhesive 8 to finish the repair.
The laying thickness of the glass fiber felt 3 and the glass fiber cloth 4 is 4-6mm.
Examples
As shown in figure 1, a fracture buoyancy block with a cross section similar to a semicircle is selected as shown in figure 1, a model with fracture cracks being irregular cracks is taken as a research object, and an original buoyancy block is composed of a high-strength composite hollow sphere with the diameter of 5-50mm, hollow microspheres, fibers, epoxy resin and the like.
Preparing raw materials:
the floating body material 7 comprises the following mass components: the epoxy resin curing agent, the epoxy resin and the hollow microspheres in a mass ratio of 0.7. At normal temperature, mixing the epoxy resin and the epoxy resin curing agent by using an automatic stirring kettle until the epoxy resin and the epoxy resin curing agent are uniform, then adding the hollow microspheres with the particle size of 20-150 mu m, and uniformly mixing for about 10 minutes.
The quick-drying adhesive 8 comprises the following components in parts by mass: 0.2 mass ratio of polypropylene glycol diglycidyl ether diluent, HYY203 type curing agent and epoxy resin.
The slow-drying binder 2 comprises the following components in parts by mass: 0.2 mass ratio of polypropylene glycol diglycidyl ether diluent, HYY204 type curing agent and epoxy resin.
The glass fiber rib is selected as a reinforcing rib rod 1 and is composed of high-performance fiber, synthetic resin, curing agent and other materials, and the main parameters of high strength and light weight are as follows: the material has the diameter of 25mm, the tensile strength of 675Mpa, the ultimate tensile strength of 342KN, the elastic modulus of 40-41 Gpa and the density of 1.8-2.1 g/cm < 3 >.
(1) Drilling a section: five holes are drilled on the cross section, are uniformly distributed on the semi-circle and have the size
30mm × 260mm; the parallelism tolerance of the holes is +/-1 mm, and the size tolerance of the holes is plus 0.5 to plus 1mm.
The total length of the buoyancy block is 5248mm, the length tolerance is +/-6 mm, the positioning size of the binding band fixing groove of the buoyancy block is 3320mm, the tolerance is +/-3 mm, and the straightness is 5mm.
(2) Pre-folding: and respectively fixing the breaking buoyancy block I6 and the breaking buoyancy block II9 on a tool, pre-folding the breaking surface of the breaking buoyancy block I6 and the breaking surface of the breaking buoyancy block II9, and measuring the seam clearance during folding, wherein the seam clearance is 1.4mm.
(3) Coating slow-dry adhesive 2 with the thickness of 2mm on the surfaces of the two fracture surfaces, and simultaneously filling the slow-dry adhesive 2 into the blind holes I10 and II11 in a vacuum manner; the depth of vacuum infusion is 2/3 of the depth of the blind holes I10 and II 11.
(4) Coating floating body materials 7 on the surfaces of the two fracture surfaces, filling the floating body materials 7 into the blind holes I10 and II11, and then placing reinforcing rib rods 1 into the blind holes I10 and II 11; the thickness of the floating body material 7 coated on the surfaces of the two fracture surfaces is 10mm; the depth of pouring is 1/3 of the depth of the blind holes I10 and II 11.
(5) Clamping the breaking buoyancy block I6 and the breaking buoyancy block II9 for folding; the clamping force is 300-350 kg, the clamping time is 2-2.5h, and the process is stopped when the floating body material 7 begins to overflow from the folded seam.
(6) And (3) standing the folded buoyancy block for 24h, polishing and cleaning the overflowing part of the floating body material 7 along a folding crack after maintenance is finished, then sequentially laying glass fiber felt 3 and glass fiber cloth 4 on the outer wall of the folded buoyancy block by using a quick-drying adhesive 8, and finally performing surface treatment to lay three layers of the glass fiber felt 3, wherein the thickness of the three layers is about 5mm, and then laying two layers of the glass fiber cloth 4, and the thickness of the two layers is about 5mm.
Through detection, the dry weight of the buoyancy block is controlled to be +/-5% of the original value, the weight is basically unchanged, and the buoyancy is not lost; the first pass percent of ultrasonic flaw detection is more than or equal to 98 percent, and the assembly test, the hydrostatic test and the bending test are completely qualified; the repairing method is simple, the repairing cost is low, the repairing period is short, and the nondestructive repairing of the broken buoyancy block is realized.
Claims (1)
1. A nondestructive repair method for a buoyancy block of a marine riser is characterized by comprising the following steps:
step 1, taking a breaking buoyancy block I (6) and a breaking buoyancy block II (9) on two sides of a buoyancy block fault, cleaning up stains on a breaking surface of the breaking buoyancy block I (6) and a breaking surface of the breaking buoyancy block II (9), forming a blind hole I (10) along the breaking surface of the breaking buoyancy block I (6), forming blind holes II (11) along the breaking surfaces of the breaking buoyancy block II (9), and enabling the blind holes I (10) and the blind holes II (11) to be located on the same central axis;
the depth of the blind hole I (10) and the blind hole II (11) is 2-3 times of the total thickness of the buoyancy block before fracture;
the number of the blind holes I (10) is the same as that of the blind holes II (11), the blind holes I (10) correspond to the blind holes II (11) one by one, the number of the blind holes I (10) is 4-6, and the aperture is phi 30 mm-phi 40mm;
step 2, respectively fixing the rupture buoyancy blocks I (6) and II (9) processed in the step 1 on a tool, pre-folding the rupture surfaces of the rupture buoyancy blocks I (6) and II (9), and measuring the seam clearance during folding; when the seam clearance is larger than 1.5mm, the quick-drying adhesive (8) and the floating body material (7) are sequentially adopted for local repair of the fracture surface, and when the seam clearance is not larger than 1.5mm, the next step is continued;
the quick-drying adhesive (8) comprises the following components in percentage by mass: 0.2 mass ratio of polypropylene glycol diglycidyl ether diluent, HYY203 type curing agent and epoxy resin;
the floating body material (7) comprises the following mass components: the epoxy resin curing agent, the epoxy resin and the hollow microspheres in a mass ratio of 0.7;
the particle size of the hollow microsphere is 20-150 mu m;
step 3, after the treatment of the step 2, brushing a slow-drying adhesive (2) on the surfaces of the two fracture surfaces, and simultaneously filling the slow-drying adhesive (2) into the blind hole I (10) and the blind hole II (11) in a vacuum manner;
the thickness of the slow-drying adhesive (2) coated on the surfaces of the two fracture surfaces is 2-3mm;
the depth of the vacuum infusion is not less than 2/3 of the depth of the blind hole I (10) and the blind hole II (11);
the slow-drying binder (2) comprises the following components in percentage by mass: 0.2 mass ratio of polypropylene glycol diglycidyl ether diluent, HYY204 type curing agent and epoxy resin;
step 4, brushing floating body materials (7) on the surfaces of the two fracture surfaces processed in the step 3, filling the floating body materials (7) into the blind holes I (10) and II (11), and then placing a reinforcing rib rod (1) in the blind holes I (10) and II (11);
the thickness of the floating body material (7) coated on the surfaces of the two fracture surfaces is 10-12mm;
the depth of the pouring is not less than 1/3 of the depth of the blind hole I (10) and the blind hole II (11);
the reinforcing bar rod (1) is a glass fiber bar or a basalt fiber bar;
the clamping parameters are as follows: the clamping force is 300-350 kg, and the clamping time is 2-2.5h;
step 5, on the basis of the step 4, folding is carried out by clamping a breaking buoyancy block I (6) and a breaking buoyancy block II (9);
step 6, standing the folded buoyancy block for 24 hours, prolonging the maintenance time to 48 hours when the daily average temperature is not more than 10 ℃, polishing and cleaning the overflowing floating body material (7) part along the folding crack after the maintenance is finished, and then sequentially paving a glass fiber felt (3) and a glass fiber cloth (4) on the outer wall of the folded buoyancy block by using a quick-drying adhesive (8) to finish the repair;
the laying thickness of the glass fiber felt (3) and the glass fiber cloth (4) is 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910940871.4A CN110698813B (en) | 2019-09-30 | 2019-09-30 | Nondestructive repair method for buoyancy block of marine riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910940871.4A CN110698813B (en) | 2019-09-30 | 2019-09-30 | Nondestructive repair method for buoyancy block of marine riser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110698813A CN110698813A (en) | 2020-01-17 |
| CN110698813B true CN110698813B (en) | 2022-10-14 |
Family
ID=69197377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910940871.4A Active CN110698813B (en) | 2019-09-30 | 2019-09-30 | Nondestructive repair method for buoyancy block of marine riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110698813B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392003A (en) * | 2020-04-09 | 2020-07-10 | 台州中浮新材料科技股份有限公司 | Method for repairing marine vessel floating block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121901A (en) * | 2000-10-16 | 2002-04-26 | Alpha Kogyo Kk | Reinforcing/repairing method for concrete structure having cracks and infiltration type adhesive composition for it |
| JP2014034814A (en) * | 2012-08-09 | 2014-02-24 | Yaguchi Giko:Kk | Method of tile exfoliation prevention and waterproof construction in interior/exterior tile cracking repair |
| WO2015025240A1 (en) * | 2013-08-19 | 2015-02-26 | Fiber Fix Usa, Llc | Repair kit for securing elements to one another using repair wrap |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2393152B (en) * | 2001-09-15 | 2004-08-04 | Crp Group Ltd | Buoyancy element and module |
| PE20142423A1 (en) * | 2010-10-21 | 2015-01-31 | Reforcetech Ltd | REINFORCEMENT BAR AND METHOD FOR THE MANUFACTURE OF THE SAME |
-
2019
- 2019-09-30 CN CN201910940871.4A patent/CN110698813B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121901A (en) * | 2000-10-16 | 2002-04-26 | Alpha Kogyo Kk | Reinforcing/repairing method for concrete structure having cracks and infiltration type adhesive composition for it |
| JP2014034814A (en) * | 2012-08-09 | 2014-02-24 | Yaguchi Giko:Kk | Method of tile exfoliation prevention and waterproof construction in interior/exterior tile cracking repair |
| WO2015025240A1 (en) * | 2013-08-19 | 2015-02-26 | Fiber Fix Usa, Llc | Repair kit for securing elements to one another using repair wrap |
Non-Patent Citations (1)
| Title |
|---|
| 空心微珠/环氧树脂高强浮力材料的性能及断裂分析;林碧兰等;《复合材料学报》;20110615(第03期);6-12 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110698813A (en) | 2020-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111039624A (en) | Recycled concrete and preparation method thereof | |
| CN108069669B (en) | Glass fiber reinforced cement material prepared from waste concrete | |
| CN101793055B (en) | Sea-sand concrete member and manufacturing method thereof | |
| CN204326567U (en) | A kind of reinforced concrete wall runs through large fracture preparing structure | |
| CN109305780B (en) | Pipeline spraying repair material, preparation method and construction process for pipeline repair by using pipeline spraying repair material | |
| CN102659369A (en) | Epoxy emulsion modified quick repair mortar for concrete roads and bridges and preparation method for mortar | |
| CN105542219B (en) | A kind of preparation method of high-strength light composite hollow ball | |
| CN110952996B (en) | Method and material for reinforcing electric power tunnel by fiber grid reinforced polymer mortar | |
| CN106677551A (en) | Method for compositely strengthening steel pipe column through external sleeveing of circular steel pipe concrete fibre composite materials | |
| CN110698813B (en) | Nondestructive repair method for buoyancy block of marine riser | |
| CN106401204A (en) | Composite strengthening method through fiber-reinforced high-damping polymer concrete coated with carbon fiber cloth | |
| CN112096111A (en) | Ancient building masonry wall reinforced by carbon fiber bar caulking and reinforcing construction process thereof | |
| CN110937870B (en) | Rapid repairing material for airport parking apron and preparation method thereof | |
| KR101557785B1 (en) | Method of repairing and reinforcing concrete structure using complex panel of basalt fiber and sheet | |
| CN107202223A (en) | Anti-corrosion push pipe | |
| CN113374175A (en) | Corrosion-resistant CFRP-high-strength steel composite pipe sea aggregate seawater concrete combined column | |
| CN109356320B (en) | Composite connecting piece for prefabricated sandwich heat-insulation wall board and preparation method | |
| CN104763163A (en) | Method and process for reinforcing RC (Reinforced Concrete) beam of E-glass fiber fabric reinforced magnesium phosphate cement-based concrete thin-slab | |
| CN104532968A (en) | Method of preventing connecting part between concrete structure and rear filling wall from being cracked | |
| CN112757437B (en) | Solid waste large-mixing-amount concrete prefabricated laminated slab and preparation method thereof | |
| CN210127577U (en) | FRP fiber reinforced concrete structure with high bonding performance | |
| Ghai et al. | Strengthening of RCC beams in shear by using SBR polymer-modified ferrocement jacketing technique | |
| CN113105188A (en) | Electric pole reinforcing method based on fiber grid reinforced UHPC | |
| CN209509261U (en) | DX external mold plate cast-in-place concrete compound insulation system | |
| CN102672972B (en) | Preparation method for fiber composite material reinforcing strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |