CN114806230A - Toughened spraying air leakage blocking sealing material and construction process thereof - Google Patents
Toughened spraying air leakage blocking sealing material and construction process thereof Download PDFInfo
- Publication number
- CN114806230A CN114806230A CN202210182908.3A CN202210182908A CN114806230A CN 114806230 A CN114806230 A CN 114806230A CN 202210182908 A CN202210182908 A CN 202210182908A CN 114806230 A CN114806230 A CN 114806230A
- Authority
- CN
- China
- Prior art keywords
- air
- toughened
- coating
- spray
- parts
- 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.)
- Pending
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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Abstract
The invention discloses a toughened spray-coating air-leakage-blocking sealing material and a construction process thereof, wherein the material comprises the following components in percentage by mass: 32-33.5% of calcium oxide, 10-11.5% of silicon dioxide, 2-4% of aluminum oxide, 1.5-3% of ferric oxide, 0.4-1.0% of an expanding agent, 0.5-1% of a flame retardant, 1-5% of a polymer emulsion and the balance of water. The spray coating leak-stopping air-tight sealing material can be highly bonded on the surfaces of coal rock mass, metal, wood and the like, has strong adhesive force, forms a polymer coating after being sprayed on the surface of the coal rock mass, can effectively seal cracks on the surfaces of a closed wall and a coal rock roadway, blocks air leakage and isolates air; the formed coating has excellent plasticity and ductility, the tensile rate exceeds 100 percent, the coating is not easy to crack, and the coating has good strain capacity on the dynamic deformation of the surface of a roadway; meanwhile, the material can inhibit the weathering of the roadway surface, effectively prevent the corrosion problem of metal materials such as anchor rods (anchor cables), trays and metal nets, and has the advantages of high construction efficiency, small transportation amount and wide application.
Description
Technical Field
The invention relates to the technical field of leakage stoppage, in particular to a toughened spraying air-leakage-stoppage sealing material and a construction process thereof.
Background
In order to ensure production safety, most of mines adopt common sprayed concrete or mortar to seal a roadway so as to solve the problems of surrounding rock weathering, anchor rods (anchor cables) and metal nets corrosion, gas emission and the like. The traditional concrete material is adopted to spray the roadway, so that the operation is difficult, the guniting flow is small, the transportation amount of materials such as cement, sand and the like is large, the underground construction is not easy to realize, the sprayed roadway is easy to crack, fall, grout skin and lose the sealing effect, and the later maintenance is difficult; and the roadway is sprayed by adopting the novel chemical material, the material preparation process is complex, the material cost is very high, and therefore, the tunnel is only suitable for local plugging and is difficult to apply in a large range. Therefore, it is necessary to research an economic, practical, closed, weathering-resistant and corrosion-resistant roadway leakage stoppage coating and construct an efficient and automatic underground quick leakage stoppage system.
Disclosure of Invention
The invention aims to provide a toughening type spraying leakage-stopping air-tight sealing material which is small in transportation amount, low in cost and good in plugging effect.
The invention also aims to provide the construction process of the toughened spraying air-leakage-stopping sealing material, which has simple construction operation and high construction efficiency.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
on one hand, the invention provides a toughened spraying air-leakage-stopping sealing material which comprises the following components in percentage by mass: 32-33.5% of calcium oxide, 10-11.5% of silicon dioxide, 2-4% of aluminum oxide, 1.5-3% of ferric oxide, 0.4-1.0% of an expanding agent, 0.5-1% of a flame retardant, 1-3% of a polymer emulsion and the balance of water.
Preferably, the toughened spraying leakage stoppage air-tight sealing material comprises the following components in percentage by mass: 32.5 percent of calcium oxide, 10 percent of silicon dioxide, 3 percent of aluminum oxide, 2 percent of ferric oxide, 0.8 percent of expanding agent, 0.8 percent of flame retardant, 1.5 percent of polymer emulsion and the balance of water.
Preferably, the swelling agent is one or more of sodium polyacrylate, cellulose ethers and guar gum.
Preferably, the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide, ammonium polyphosphate, zinc stannate, zinc borate and pentaerythritol.
Preferably, the polymer emulsion is a styrene-acrylic emulsion and/or an acrylate emulsion.
Preferably, the particle size of the calcium oxide is 150-250 meshes.
On the other hand, the invention also provides a construction process of the toughened spraying air-leakage-stopping sealing material, which comprises the following specific steps:
(1) removing the obstacles on the working face and removing rock slag and deposits at the corner of the pumice wall on the excavation face;
(2) checking a wet material pulp shooting machine and supporting equipment special for the coal mine, and simultaneously checking whether an air-water pipe and a circuit are normal;
(3) washing the surface of the roadway by using high-pressure water;
(4) firstly, adding water meeting the requirements into a stirring barrel according to the ratio, starting an air source to output power, opening a ball valve on the stirring barrel, closing other ball valves, compressing air to enable a pneumatic motor to push a stirrer to rotate, adding a sealing material to carry out full stirring, and when the stirring is finished, reducing the stirring speed and keeping the stirring at a low speed; opening a discharge valve of the stirring barrel, conveying the slurry to a spiral pump of a slurry spraying machine, then opening the spiral pump, and operating a spray head by a spray hand to spray the slurry;
(5) and after the guniting is finished, on-site sundries are cleaned in time to wash equipment and pipelines.
Preferably, the stirring time in the step (4) is 5-8 min.
Compared with the prior art, the invention has the following beneficial effects:
1. the spray coating leak-stopping air-tight sealing material can be highly bonded on the surfaces of coal rock mass, metal, wood and the like, has strong adhesive force, forms a polymer coating after being sprayed on the surface of the coal rock mass, can effectively seal cracks on the surfaces of a closed wall and a coal rock roadway, blocks air leakage and isolates air;
2. the coating formed by the spray-coating air-plugging sealing material has excellent plasticity and ductility, the tensile rate exceeds 100 percent, the coating is not easy to crack, and the coating has good strain capacity on the dynamic deformation of the surface of a roadway; meanwhile, the material can inhibit the weathering of the surface of the roadway, and can effectively prevent the corrosion problem of metal materials such as anchor rods (anchor cables), trays, metal nets and the like;
3. the spraying plugging air-tight material has high construction efficiency, and the comprehensive working hour investment is less than one fifth of that of cement guniting; the transportation amount is small, the material transportation amount is less than one twentieth of the cement mortar transportation amount when the same-scale roadway is sprayed.
Drawings
FIG. 1 is a surface spraying effect diagram of an underground coal rock roadway.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
The raw materials used in the following examples are all commercially available products, and the particle size of the calcium oxide used is 150 to 250 mesh.
Example 1
The toughened spraying leakage-stopping air-tight material comprises the following components in parts by weight: 330 parts of calcium oxide, 110 parts of silicon dioxide, 30 parts of aluminum oxide, 16 parts of ferric oxide, 10 parts of sodium polyacrylate, 6 parts of aluminum hydroxide, 10 parts of styrene-acrylic emulsion and 488 parts of water.
The preparation method comprises the following steps: and (3) uniformly mixing all the powder materials in a stirrer, adding water, stirring for 5min, pouring the styrene-acrylic emulsion, and continuously stirring uniformly to obtain the toughening type spraying leakage-stopping air-tight sealing material.
Example 2
The toughened spraying leakage-stopping air-tight material comprises the following components in parts by weight: 325 parts of calcium oxide, 100 parts of silicon dioxide, 30 parts of aluminum oxide, 20 parts of ferric oxide, 8 parts of sodium polyacrylate, 8 parts of aluminum hydroxide, 15 parts of acrylate emulsion and 494 parts of water.
The preparation method comprises the following steps: same as in example 1.
Example 3
The toughened spraying leakage-stopping air-tight material comprises the following components in parts by weight: 335 parts of calcium oxide, 100 parts of silicon dioxide, 20 parts of aluminum oxide, 30 parts of iron oxide, 4 parts of sodium polyacrylate, 8 parts of aluminum hydroxide, 30 parts of acrylate emulsion and 471 parts of water.
The preparation method comprises the following steps: same as in example 1.
Example 4
The toughened spraying leakage-stopping air-tight material comprises the following components in parts by weight: 320 parts of calcium oxide, 115 parts of silicon dioxide, 25 parts of aluminum oxide, 15 parts of iron oxide, 8 parts of hydroxypropyl guar gum, 6 parts of aluminum hydroxide, 4 parts of magnesium hydroxide, 20 parts of acrylate emulsion and 492 parts of water.
The preparation method comprises the following steps: same as in example 1.
Example 5
The toughened spraying leakage-stopping air-tight material comprises the following components in parts by weight: 335 parts of calcium oxide, 105 parts of silicon dioxide, 20 parts of aluminum oxide, 28 parts of iron oxide, 9 parts of carboxymethyl cellulose ether, 3 parts of ammonium polyphosphate, 6 parts of aluminum hydroxide, 1 part of pentaerythritol, 30 parts of styrene-acrylic emulsion and 463 parts of water.
The preparation method comprises the following steps: same as in example 1.
Comparative example 1
A plugging spraying material comprises the following components in parts by weight: 330 parts of calcium oxide, 110 parts of silicon dioxide, 30 parts of aluminum oxide, 16 parts of iron oxide, 10 parts of sodium polyacrylate, 6 parts of aluminum hydroxide and 498 parts of water.
The preparation method comprises the following steps: and (3) uniformly mixing all the powder materials in a stirrer, adding water, stirring for 5min, and uniformly mixing to obtain the plugging spraying material.
Comparative example 2
A plugging spraying material comprises the following components in parts by weight: 325 parts of calcium oxide, 100 parts of silicon dioxide, 30 parts of aluminum oxide, 20 parts of iron oxide, 8 parts of sodium polyacrylate, 8 parts of aluminum hydroxide and 509 parts of water.
The preparation method comprises the following steps: same as in comparative example 1.
The toughened spray-coating leakage-stopping air-tight sealing material prepared in examples 1-5 and the conventional leakage-stopping spray-coating material prepared in comparative examples 1-2 were subjected to corresponding experimental studies, and the performance of the spray-coating leakage-stopping air-tight sealing material was tested according to AQ 1088 plus 2011 "technical conditions for polymer materials for coal mine spray-coating leakage-stopping air", and the results are shown in Table 1:
TABLE 1 test results
As can be seen from Table 1, the comparison shows that the sealing material prepared by the embodiment of the invention is obviously superior to the comparative example in the aspects of bonding strength, tensile strength, elongation at break and repeatable bending times, because the invention introduces the polymer emulsion, and takes the dual advantages of rigid particles and polymer gel into account, the unnecessary loss of the plugging material in the plugging process can be reduced, the plugging material can be well filled, stacked and expanded in a leaking layer, the plugging material can better adapt to cracks with different sizes, the polymer and powder react with each other to cause the change of the mechanical properties among material molecules, the tensile strength and the bending strength are increased, the flexibility is increased, the deformability is improved, and the water resistance is improved. In addition, it is clear from comparison of examples 1 to 5 that example 2 has the best toughening effect, and shows that the raw materials can exert the best synergistic effect under the condition of proper mixture ratio.
In addition, because the flame retardant is added in the formula, the plugging material spray coating is baked by high-temperature flame, so that the plugging material has excellent flame retardant performance, is free from open fire and smoldering, and only has carbonized surface.
The invention also provides a construction process of the toughened spraying air-leakage-stopping sealing material, which comprises the following specific steps:
(1) removing the obstacles on the working face and removing rock slag and deposits at the corner of the pumice wall on the excavation face;
(2) checking a wet material pulp shooting machine and supporting equipment special for the coal mine, and simultaneously checking whether an air-water pipe and a circuit are normal;
(3) washing the surface of the roadway by using high-pressure water;
(4) firstly, adding water meeting requirements into a stirring barrel according to a ratio, starting an air source to output power, opening a ball valve on the stirring barrel, closing other ball valves, compressing air to enable a pneumatic motor to push a stirrer to rotate, adding a sealing material to fully stir for 5-8 min; when the stirring is finished, the stirring speed is reduced, and the stirring is kept at a low speed; opening a discharge valve of the stirring barrel, conveying the slurry to a screw pump of a slurry spraying machine, then opening the screw pump, and operating a spray head to spray the slurry by an operator;
when spraying the slurry, spraying once from one direction, spraying once again from the other direction after the material is basically solidified, and spraying twice again according to requirements to uniformly spray the coal wall cracks and the periphery of the metal net. During guniting, the first jacking and the second jacking are adhered to each other, and the operations are sequentially carried out from top to bottom.
(5) And after the guniting is finished, on-site sundries are cleaned in time to wash equipment and pipelines.
Fig. 1 is a diagram of the spraying effect on the surface of the underground coal-rock roadway, and as can be seen from fig. 1, the slurry is highly bonded on the surface of the coal-rock roadway, has strong adhesive force, can effectively seal the surface of the coal-rock roadway, and can prevent air leakage and harmful gas overflow.
Claims (8)
1. The toughened spraying leaking stoppage air-tight material is characterized by comprising the following components in percentage by mass: 32-33.5% of calcium oxide, 10-11.5% of silicon dioxide, 2-4% of aluminum oxide, 1.5-3% of ferric oxide, 0.4-1.0% of an expanding agent, 0.5-1% of a flame retardant, 1-3% of a polymer emulsion and the balance of water.
2. The toughening type spray leakage plugging air-tight material of claim 1, which is characterized by comprising the following components in percentage by mass: 32.5% of calcium oxide, 10% of silicon dioxide, 3% of aluminum oxide, 2% of ferric oxide, 0.8% of expanding agent, 0.8% of flame retardant, 1.5% of polymer emulsion and the balance of water.
3. The toughened spray-coating leakage plugging air-tight material according to claim 1 or 2, wherein said swelling agent is one or more of sodium polyacrylate, cellulose ethers, guar gum.
4. The toughened spraying leakage stoppage air-tight material as claimed in claim 1 or 2, wherein the flame retardant is one or more of aluminum hydroxide, magnesium hydroxide, ammonium polyphosphate, zinc stannate, zinc borate and pentaerythritol.
5. The toughened spray-coating leakage stoppage air-tight material as claimed in claim 1 or 2, wherein the polymer emulsion is a styrene-acrylic emulsion and/or an acrylic ester emulsion.
6. The toughened spray-coating leakage stoppage air-tight material as claimed in claim 1 or 2, wherein the particle size of the calcium oxide is 150-250 mesh.
7. The construction process of the toughened spraying air-leakage-stopping sealing material as claimed in any one of claims 1 to 6, which is characterized by comprising the following specific steps:
(1) removing the obstacles on the working face and removing rock slag and deposits at the corner of the pumice wall on the excavation face;
(2) checking a pulp shooting machine and supporting equipment, and simultaneously checking whether an air-water pipe and a circuit are normal;
(3) washing the surface of the roadway by using high-pressure water;
(4) firstly, adding water meeting the requirement into a stirring barrel according to the ratio, starting an air source to output power, opening a ball valve on the stirring barrel, closing other ball valves, compressing air to enable a pneumatic motor to push a stirrer to rotate, adding a sealing material to fully stir, and when the stirring is finished, reducing the stirring speed and keeping the low-speed stirring; opening a discharge valve of the stirring barrel, conveying the slurry to a screw pump of a slurry spraying machine, then opening the screw pump, and operating a spray head to spray the slurry;
(5) and after the guniting is finished, on-site sundries are cleaned in time to wash equipment and pipelines.
8. The construction process according to claim 7, wherein the stirring time in the step (4) is 5-8 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210182908.3A CN114806230A (en) | 2022-02-25 | 2022-02-25 | Toughened spraying air leakage blocking sealing material and construction process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210182908.3A CN114806230A (en) | 2022-02-25 | 2022-02-25 | Toughened spraying air leakage blocking sealing material and construction process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114806230A true CN114806230A (en) | 2022-07-29 |
Family
ID=82529746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210182908.3A Pending CN114806230A (en) | 2022-02-25 | 2022-02-25 | Toughened spraying air leakage blocking sealing material and construction process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114806230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115820231A (en) * | 2022-11-23 | 2023-03-21 | 山东科技大学 | Flame-retardant antistatic large-deformation spraying air-leakage-stopping material and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329600A (en) * | 2011-10-14 | 2012-01-25 | 西南石油大学 | Nanoparticle sealing channeling water shutoff agent for oil wells |
| CN102503328A (en) * | 2011-09-30 | 2012-06-20 | 北京旷世达资源环境工程发展中心 | Universal rock and soil curing agent and preparation method thereof |
| CN104386996A (en) * | 2014-10-09 | 2015-03-04 | 合肥向荣环保科技有限公司 | Crack-resistant plasterboard |
| CN105647494A (en) * | 2014-09-18 | 2016-06-08 | 新疆格瑞迪斯石油技术股份有限公司 | Agent for leak prevention and leak stoppage while drilling and preparation process thereof |
| CN107352861A (en) * | 2017-06-06 | 2017-11-17 | 浙江加州国际纳米技术研究院台州分院 | A kind of application method of maritime concrete protection land used polymer coating materials |
| CN107721334A (en) * | 2017-11-16 | 2018-02-23 | 重庆建工住宅建设有限公司 | A kind of emergent automatic leakage-blocking material |
| CN108395192A (en) * | 2018-03-09 | 2018-08-14 | 深圳摩盾环保新材料有限公司 | A kind of fire-type gypsum base sprayed on material and preparation method thereof |
| CN109651862A (en) * | 2018-11-15 | 2019-04-19 | 盐城紫环工业机械有限公司 | A kind of system containing calcium oxide fireproof coating and preparation method thereof |
| CN110540395A (en) * | 2019-09-26 | 2019-12-06 | 张园月 | Spraying material for coal mine underground roadway and preparation method |
| CN111362619A (en) * | 2020-03-17 | 2020-07-03 | 盛隆建材有限公司 | High-energy-gathering inorganic leaking stoppage grouting material and preparation method thereof |
-
2022
- 2022-02-25 CN CN202210182908.3A patent/CN114806230A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503328A (en) * | 2011-09-30 | 2012-06-20 | 北京旷世达资源环境工程发展中心 | Universal rock and soil curing agent and preparation method thereof |
| CN102329600A (en) * | 2011-10-14 | 2012-01-25 | 西南石油大学 | Nanoparticle sealing channeling water shutoff agent for oil wells |
| CN105647494A (en) * | 2014-09-18 | 2016-06-08 | 新疆格瑞迪斯石油技术股份有限公司 | Agent for leak prevention and leak stoppage while drilling and preparation process thereof |
| CN104386996A (en) * | 2014-10-09 | 2015-03-04 | 合肥向荣环保科技有限公司 | Crack-resistant plasterboard |
| CN107352861A (en) * | 2017-06-06 | 2017-11-17 | 浙江加州国际纳米技术研究院台州分院 | A kind of application method of maritime concrete protection land used polymer coating materials |
| CN107721334A (en) * | 2017-11-16 | 2018-02-23 | 重庆建工住宅建设有限公司 | A kind of emergent automatic leakage-blocking material |
| CN108395192A (en) * | 2018-03-09 | 2018-08-14 | 深圳摩盾环保新材料有限公司 | A kind of fire-type gypsum base sprayed on material and preparation method thereof |
| CN109651862A (en) * | 2018-11-15 | 2019-04-19 | 盐城紫环工业机械有限公司 | A kind of system containing calcium oxide fireproof coating and preparation method thereof |
| CN110540395A (en) * | 2019-09-26 | 2019-12-06 | 张园月 | Spraying material for coal mine underground roadway and preparation method |
| CN111362619A (en) * | 2020-03-17 | 2020-07-03 | 盛隆建材有限公司 | High-energy-gathering inorganic leaking stoppage grouting material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115820231A (en) * | 2022-11-23 | 2023-03-21 | 山东科技大学 | Flame-retardant antistatic large-deformation spraying air-leakage-stopping material and preparation method thereof |
| CN115820231B (en) * | 2022-11-23 | 2024-04-02 | 山东科技大学 | Flame-retardant antistatic large-deformation spraying air leakage blocking material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111533519B (en) | Flexible spraying material for tunnel roadway support and preparation method and application thereof | |
| CN111533518B (en) | Flexible spraying material for mine roadway support and preparation method and application thereof | |
| CN103693922A (en) | Mining spraying material formula and application method | |
| CN114806230A (en) | Toughened spraying air leakage blocking sealing material and construction process thereof | |
| KR101065209B1 (en) | Composition for the prevention of contaminants comprising polysuccinimide-bound polymer mortar, and an eco-friend process of reinforcing the construction by using the same | |
| CN111056804A (en) | Manufacturing method and construction method of underground thin gunning material of coal mine and pneumatic guniting device | |
| CN101844902A (en) | High-strength expandable mine sealing material capable of being solidified quickly | |
| CN104975570A (en) | Concrete lifting pouring construction method for steel tube arch bridge arch ribs | |
| CN113800870A (en) | High-toughness thin-spraying material for rapid sealing and reinforcing underground coal mine and using method thereof | |
| KR102414798B1 (en) | Crack reducing salt resistance mortar composition having excellent thixotropy and repairing and reinforcing method using the same | |
| CN105888690A (en) | Spray sowing method and equipment for TBM (tunnel boring machine) and drilling and blasting type tunnel construction | |
| CN112300611B (en) | Mining wet type thin spraying material and application thereof | |
| CN107476297A (en) | The Cement Mixing Pile constructing device of a kind of soft foundation processing and its into pile operation method | |
| CN111187631B (en) | Repair material for mouth structure of coke oven machine and use method thereof | |
| CN106892585A (en) | A kind of high-strength ultra micro concrete spraying additive | |
| CN110885213A (en) | Super high-rise pumping concrete and preparation method thereof | |
| CN105626097B (en) | Thin-spraying sealing material, thin-spraying sealing method and open type powder spraying equipment | |
| CN211549724U (en) | Coal mine underground thin guniting pneumatic guniting device | |
| CN113845846A (en) | Waterproof reinforcing and rapid sealing thin-spraying material for broken surrounding rock tunnel and spraying device | |
| Chen et al. | Synthesis and properties of a polymer-modified material for thin spray-on liners in mine roadways | |
| CN209649157U (en) | A kind of mining grouting system | |
| CN113880508A (en) | Material for quickly sealing easily weathered surrounding rock of coal mine bottom suction roadway and using method thereof | |
| CN114409310B (en) | High-strength surface-hardening agent for mining sealing, supporting and spraying and use method thereof | |
| CN115353351B (en) | Thin-spraying high-performance polymer mortar for tunnel rock protection | |
| CN106630884B (en) | A kind of high-density gypsum building block |
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 |