CN111042348A - Waterproof construction process for base layer in various complex forms - Google Patents
Waterproof construction process for base layer in various complex forms Download PDFInfo
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- CN111042348A CN111042348A CN201911354355.XA CN201911354355A CN111042348A CN 111042348 A CN111042348 A CN 111042348A CN 201911354355 A CN201911354355 A CN 201911354355A CN 111042348 A CN111042348 A CN 111042348A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/665—Sheets or foils impervious to water and water vapor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a waterproof construction process for a base layer in various complex forms, which comprises the following steps: (1) base layer treatment: the base layer is firm, flat and clean, and the phenomena of hollowing, loosening, sanding and cracking are avoided; (2) a non-cured additional layer; (3) large-area blade coating construction; (4) constructing a waterproof coiled material; (5) construction of a waterproof protective layer: after the construction of the waterproof coiled material is completed, the waterproof layer is concealed and accepted. The non-cured rubber asphalt waterproof coating is a novel waterproof material which takes rubber, asphalt and additives as raw materials and can keep the elastoplasticity for a long time in an application state; the coating can seal cracks and capillary holes of a base layer, can adapt to complex construction operation surfaces, is not solidified for a long time after contacting with air, and always keeps the characteristic of sticky colloid; the reliability of the waterproof layer can be greatly improved by combining the composite construction of the waterproof coiled material.
Description
Technical Field
The invention relates to the field of building construction, in particular to a base waterproof construction process aiming at various complex forms.
Background
Buildings such as underground parking lots in residential buildings and basements in residential buildings need to be subjected to waterproof treatment, and the conventional method is to adopt SBS modified asphalt waterproof coiled materials or polyurethane waterproof coatings for waterproof treatment. At present, underground waterproof engineering mostly adopts single waterproof material, and water-proof effects is relatively poor. Waterproofing membrane needs the polylith concatenation when the basic unit construction of appearance complicacy, and the concatenation department quality control degree of difficulty is great, easily produces the seepage. The thickness of the waterproof coating construction coating is difficult to control, and the construction quality cannot be ensured.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a base layer waterproof construction process aiming at various complex forms, and the non-cured rubber asphalt waterproof coating is a novel waterproof material which takes rubber, asphalt and an additive as raw materials and keeps the elastoplasticity for a long time in an application state; the coating can seal cracks and capillary holes of a base layer, can adapt to complex construction operation surfaces, is not solidified for a long time after contacting with air, and always keeps the characteristic of sticky colloid; the reliability of the waterproof layer can be greatly improved by combining the composite construction of the waterproof coiled material.
In order to achieve the aim of the invention, the invention adopts the specific scheme that:
a waterproof construction process for various complex forms of base layers comprises the following steps:
(1) base layer treatment: the base layer is firm, flat and clean, and the phenomena of hollowing, loosening, sanding and cracking are avoided; the base layer of the parts such as the underground side wall, the underground top plate and the like which are constructed by adopting an external-protection external-pasting method is dried; cement mortar is adopted to make a straight circular arc at the joint of the base layer and the protruding structure and the joint of the plane and the vertical surface, the radius R of the circular arc at the internal corner is more than or equal to 50mm, and the radius R of the circular arc at the external corner is more than or equal to 10 mm; extending out of the pipeline with the plane structure, and smearing a drainage slope with the height not less than 30mm on the periphery of the pipeline; when the structural surface is used as a waterproof base layer and a through crack or a general crack exceeding 0.2mm exists on the surface of the base layer, the crack is repaired before waterproof construction; before the non-cured rubber asphalt waterproof coating is constructed, a base layer treating agent is coated; before construction, the non-cured rubber asphalt waterproof coating is put in heating equipment to be heated into a liquid state, construction can be carried out when the specified heat use temperature is reached, the heating temperature of manual blade coating is more than or equal to 120 ℃, and the spraying temperature is more than or equal to 150 ℃;
(2) non-cured additional layer: brushing the detailed parts such as the internal and external corners, the corners of the plane and the vertical surface, and the like, wherein the thickness is preferably 2mm, and cutting the coiled material into corresponding shapes to be attached; after the additional layer is manufactured, overall construction is carried out, and the integral coating is ensured to keep consistent thickness; the total width of the reinforcing layers on the two sides of the internal corner and the external corner is not less than 500 mm; a through reinforcing layer is arranged on the post-cast strip, and the width of the reinforcing layer extending outwards from the construction joint is not less than 250 mm;
(3) large-area blade coating construction: uniformly coating the heated and melted rubber asphalt non-cured waterproof coating on a base layer by blade coating or spraying and other methods, wherein the thickness is more than or equal to 2.0mm, rolling and paving a waterproof coiled material within 3min after the non-cured rubber asphalt waterproof coating is coated, slightly scraping the surface of the coiled material, and discharging internal air to firmly adhere the coiled material and the non-cured rubber asphalt waterproof coating together;
(4) construction of waterproof rolls: non-curing rubber asphalt is used as an adhesive of the waterproof coiled material, the spraying width of the non-curing rubber asphalt is slightly wider than that of the waterproof coiled material each time, after the spraying is finished, the waterproof coiled material is immediately pasted, the waterproof coiled material is pressed from one end of the paved coiled material, the paved coiled material is uniformly paved forwards, the scraped flat waterproof coiled material is flattened, and air bubbles are removed, and the lap joint length between adjacent coiled materials is not less than 100 mm; when the coiled material is paved, the lap of the coiled material is kept clean, the lap of the coiled material is pretreated by a coiled material lap treating agent, then a special binding agent for the coiled material is uniformly coated on two turned-over binding surfaces of the lap coiled material by a paint brush, after 10-30 minutes, the binding can be carried out without sticking hands in hand feeling, air is removed while compaction is carried out, and the lap width is ensured to be not less than 100 mm; after the coiled materials are well adhered, simultaneously heating an upper coiled material layer and a lower coiled material layer by flame pairs at the lap of the coiled materials, adhering and spreading the coiled materials when the heating surfaces of the coiled materials are molten, and then exhausting and compacting the spread coiled materials by a hand-held press roller by one person;
(5) construction of a waterproof protective layer: after the waterproof coiled material is constructed, the waterproof layer is concealed and accepted, the waterproof protective layer is constructed after acceptance is qualified, the waterproof protective layer of the bottom plate is made of c20 fine-stone concrete, the thickness of the bottom plate is 5cm, the concrete is poured and should be fully vibrated and compacted, the thickness is controlled, the waterproof protective layer of the beam groove and the side surface is plastered by 1:2.5 cement mortar, the thickness is 2cm, before plastering, a 3-5mm interface agent is plastered on the surface of the waterproof layer, effective adhesion of the mortar and the waterproof layer is guaranteed, maintenance and heat preservation are well carried out after construction is finished, the next procedure construction can be carried out after the concrete and the mortar reach certain strength, and the waterproof protective layer is prevented.
Further, the heating of the non-cured rubber asphalt waterproof coating is controlled at 140 ℃ of 120-.
Further, still include: detail processing, (1) racking: the permanent protection wall is preferably built by cement mortar, and the inner surface is preferably leveled by cement mortar; the temporary protection wall is built by lime mortar, and the inner surface is leveled by the lime mortar; (2) post-pouring a belt; (3) pile head: cutting off the pile head to a designed elevation, chiseling and cleaning floating slag or loose concrete on the surface of the pile head; adjusting longitudinal stress steel bars and stirrups before waterproof construction; cleaning the pile top, the pile body and the periphery before waterproof construction; the pile top, the pile body and the periphery of the pile are coated with the penetration crystallization type waterproof paint of which the thickness is not less than 1.5kg/m2 cement base within 250mm, and the reinforcing steel bars cannot be polluted.
The invention has the beneficial effects that:
(1) the applicability is strong: the method can be suitable for various base layers with complex forms, and is suitable for deformation caused by cracking of the base layers and the like; the waterproof layer has super strong self-healing property, can protect the waterproof layer from being damaged, and actively seals the micro cracks of the base layer. The adhesive can also be constructed on a wet base surface and can be effectively bonded with various waterproof materials;
(2) the process is simple and convenient: the coating construction has two modes of manual scraping and mechanical spraying, and the waterproof coiled material is immediately pasted, so that the required waterproof layer thickness can be achieved at one time, the thickness is uniform, the forming quality is good, the waterproof effect is good, and the construction period is saved;
(3) the durability is good: the non-cured rubber asphalt coating has good self-healing property, is not cured for a long time, keeps the performance unchanged for a long time, and can repair the waterproof layer by self under the condition of damage of the waterproof layer;
(4) the integrity is good: the non-cured rubber asphalt composite waterproof layer can form a compact, uniform and continuous waterproof layer, has good integrity, is easy to control the construction quality and has good waterproof effect;
(5) safety and environmental protection: the durability is good, the corrosion resistance is good, and the flame retardancy is difficult; no toxicity, no pungent smell and no pollution.
Detailed Description
The present invention is further described below by way of specific examples, but the present invention is not limited to only the following examples. Variations, combinations, or substitutions of the invention, which are within the scope of the invention or the spirit, scope of the invention, will be apparent to those of skill in the art and are within the scope of the invention.
A waterproof construction process for various complex forms of base layers comprises the following steps:
(1) base layer treatment: the base layer is firm, flat and clean, and the phenomena of hollowing, loosening, sanding and cracking are avoided; the base layer of the parts such as the underground side wall, the underground top plate and the like which are constructed by adopting an external-protection external-pasting method is dried; cement mortar is adopted to make a straight circular arc at the joint of the base layer and the protruding structure and the joint of the plane and the vertical surface, the radius R of the circular arc at the internal corner is more than or equal to 50mm, and the radius R of the circular arc at the external corner is more than or equal to 10 mm; extending out of the pipeline with the plane structure, and smearing a drainage slope with the height not less than 30mm on the periphery of the pipeline; when the structural surface is used as a waterproof base layer and a through crack or a general crack exceeding 0.2mm exists on the surface of the base layer, the crack is repaired before waterproof construction; before the non-cured rubber asphalt waterproof coating is constructed, a base layer treating agent is coated; before construction, the non-cured rubber asphalt waterproof coating is put in heating equipment to be heated into a liquid state, construction can be carried out when the specified heat use temperature is reached, the heating temperature of manual blade coating is more than or equal to 120 ℃, and the spraying temperature is more than or equal to 150 ℃;
(2) non-cured additional layer: brushing the detailed parts such as the internal and external corners, the corners of the plane and the vertical surface, and the like, wherein the thickness is preferably 2mm, and cutting the coiled material into corresponding shapes to be attached; after the additional layer is manufactured, overall construction is carried out, and the integral coating is ensured to keep consistent thickness; the total width of the reinforcing layers on the two sides of the internal corner and the external corner is not less than 500 mm; a through reinforcing layer is arranged on the post-cast strip, and the width of the reinforcing layer extending outwards from the construction joint is not less than 250 mm;
(3) large-area blade coating construction: uniformly coating the heated and melted rubber asphalt non-cured waterproof coating on a base layer by blade coating or spraying and other methods, wherein the thickness is more than or equal to 2.0mm, rolling and paving a waterproof coiled material within 3min after the non-cured rubber asphalt waterproof coating is coated, slightly scraping the surface of the coiled material, and discharging internal air to firmly adhere the coiled material and the non-cured rubber asphalt waterproof coating together;
(4) construction of waterproof rolls: non-curing rubber asphalt is used as an adhesive of the waterproof coiled material, the spraying width of the non-curing rubber asphalt is slightly wider than that of the waterproof coiled material each time, after the spraying is finished, the waterproof coiled material is immediately pasted, the waterproof coiled material is pressed from one end of the paved coiled material, the paved coiled material is uniformly paved forwards, the scraped flat waterproof coiled material is flattened, and air bubbles are removed, and the lap joint length between adjacent coiled materials is not less than 100 mm; when the coiled material is paved, the lap of the coiled material is kept clean, the lap of the coiled material is pretreated by a coiled material lap treating agent, then a special binding agent for the coiled material is uniformly coated on two turned-over binding surfaces of the lap coiled material by a paint brush, after 10-30 minutes, the binding can be carried out without sticking hands in hand feeling, air is removed while compaction is carried out, and the lap width is ensured to be not less than 100 mm; after the coiled materials are well adhered, simultaneously heating an upper coiled material layer and a lower coiled material layer by flame pairs at the lap of the coiled materials, adhering and spreading the coiled materials when the heating surfaces of the coiled materials are molten, and then exhausting and compacting the spread coiled materials by a hand-held press roller by one person;
(5) construction of a waterproof protective layer: after the waterproof coiled material is constructed, the waterproof layer is concealed and accepted, the waterproof protective layer is constructed after acceptance is qualified, the waterproof protective layer of the bottom plate is made of c20 fine-stone concrete, the thickness of the bottom plate is 5cm, the concrete is poured and should be fully vibrated and compacted, the thickness is controlled, the waterproof protective layer of the beam groove and the side surface is plastered by 1:2.5 cement mortar, the thickness is 2cm, before plastering, a 3-5mm interface agent is plastered on the surface of the waterproof layer, effective adhesion of the mortar and the waterproof layer is guaranteed, maintenance and heat preservation are well carried out after construction is finished, the next procedure construction can be carried out after the concrete and the mortar reach certain strength, and the waterproof protective layer is prevented.
The non-cured rubber asphalt waterproof coating is heated to be controlled at the temperature of 120-140 ℃ and the viscosity of less than 0.5Pa.s, the workability of the coating during construction is optimal, and the non-cured rubber asphalt waterproof coating takes rubber, asphalt and additives as raw materials.
Further comprising: detail processing, (1) racking: the permanent protection wall is preferably built by cement mortar, and the inner surface is preferably leveled by cement mortar; the temporary protection wall is built by lime mortar, and the inner surface is leveled by the lime mortar; (2) post-pouring a belt; (3) pile head: cutting off the pile head to a designed elevation, chiseling and cleaning floating slag or loose concrete on the surface of the pile head; adjusting longitudinal stress steel bars and stirrups before waterproof construction; cleaning the pile top, the pile body and the periphery before waterproof construction; the pile top, the pile body and the periphery of the pile are coated with the penetration crystallization type waterproof paint of which the thickness is not less than 1.5kg/m2 cement base within 250mm, and the reinforcing steel bars cannot be polluted.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. A waterproof construction process for various complex forms of base layers is characterized by comprising the following steps:
(1) base layer treatment: the base layer is firm, flat and clean, and the phenomena of hollowing, loosening, sanding and cracking are avoided; the base layer of the parts such as the underground side wall, the underground top plate and the like which are constructed by adopting an external-protection external-pasting method is dried; cement mortar is adopted to make a straight circular arc at the joint of the base layer and the protruding structure and the joint of the plane and the vertical surface, the radius R of the circular arc at the internal corner is more than or equal to 50mm, and the radius R of the circular arc at the external corner is more than or equal to 10 mm; extending out of the pipeline with the plane structure, and smearing a drainage slope with the height not less than 30mm on the periphery of the pipeline; when the structural surface is used as a waterproof base layer and a through crack or a general crack exceeding 0.2mm exists on the surface of the base layer, the crack is repaired before waterproof construction; before the non-cured rubber asphalt waterproof coating is constructed, a base layer treating agent is coated; before construction, the non-cured rubber asphalt waterproof coating is put in heating equipment to be heated into a liquid state, construction can be carried out when the specified heat use temperature is reached, the heating temperature of manual blade coating is more than or equal to 120 ℃, and the spraying temperature is more than or equal to 150 ℃;
(2) non-cured additional layer: brushing the detailed parts such as the internal and external corners, the corners of the plane and the vertical surface, and the like, wherein the thickness is preferably 2mm, and cutting the coiled material into corresponding shapes to be attached; after the additional layer is manufactured, overall construction is carried out, and the integral coating is ensured to keep consistent thickness; the total width of the reinforcing layers on the two sides of the internal corner and the external corner is not less than 500 mm; a through reinforcing layer is arranged on the post-cast strip, and the width of the reinforcing layer extending outwards from the construction joint is not less than 250 mm;
(3) large-area blade coating construction: uniformly coating the heated and melted rubber asphalt non-cured waterproof coating on a base layer by blade coating or spraying and other methods, wherein the thickness is more than or equal to 2.0mm, rolling and paving a waterproof coiled material within 3min after the non-cured rubber asphalt waterproof coating is coated, slightly scraping the surface of the coiled material, and discharging internal air to firmly adhere the coiled material and the non-cured rubber asphalt waterproof coating together;
(4) construction of waterproof rolls: non-curing rubber asphalt is used as an adhesive of the waterproof coiled material, the spraying width of the non-curing rubber asphalt is slightly wider than that of the waterproof coiled material each time, after the spraying is finished, the waterproof coiled material is immediately pasted, the waterproof coiled material is pressed from one end of the paved coiled material, the paved coiled material is uniformly paved forwards, the scraped flat waterproof coiled material is flattened, and air bubbles are removed, and the lap joint length between adjacent coiled materials is not less than 100 mm; when the coiled material is paved, the lap of the coiled material is kept clean, the lap of the coiled material is pretreated by a coiled material lap treating agent, then a special binding agent for the coiled material is uniformly coated on two turned-over binding surfaces of the lap coiled material by a paint brush, after 10-30 minutes, the binding can be carried out without sticking hands in hand feeling, air is removed while compaction is carried out, and the lap width is ensured to be not less than 100 mm; after the coiled materials are well adhered, simultaneously heating an upper coiled material layer and a lower coiled material layer by flame pairs at the lap of the coiled materials, adhering and spreading the coiled materials when the heating surfaces of the coiled materials are molten, and then exhausting and compacting the spread coiled materials by a hand-held press roller by one person;
(5) construction of a waterproof protective layer: after the waterproof coiled material is constructed, the waterproof layer is concealed and accepted, the waterproof protective layer is constructed after acceptance is qualified, the waterproof protective layer of the bottom plate is made of c20 fine-stone concrete, the thickness of the bottom plate is 5cm, the concrete is poured and should be fully vibrated and compacted, the thickness is controlled, the waterproof protective layer of the beam groove and the side surface is plastered by 1:2.5 cement mortar, the thickness is 2cm, before plastering, a 3-5mm interface agent is plastered on the surface of the waterproof layer, effective adhesion of the mortar and the waterproof layer is guaranteed, maintenance and heat preservation are well carried out after construction is finished, the next procedure construction can be carried out after the concrete and the mortar reach certain strength, and the waterproof protective layer is prevented.
2. The process of claim 1, wherein the heating temperature of the non-cured rubber asphalt waterproof coating is controlled at 140 ℃ and the viscosity is less than 0.5Pa.s, and the workability of the coating during construction is optimized, wherein the non-cured rubber asphalt waterproof coating is prepared from rubber, asphalt and additives.
3. The process of claim 1, further comprising: detail processing, (1) racking: the permanent protection wall is preferably built by cement mortar, and the inner surface is preferably leveled by cement mortar; the temporary protection wall is built by lime mortar, and the inner surface is leveled by the lime mortar; (2) post-pouring a belt; (3) pile head: cutting off the pile head to a designed elevation, chiseling and cleaning floating slag or loose concrete on the surface of the pile head; adjusting longitudinal stress steel bars and stirrups before waterproof construction; cleaning the pile top, the pile body and the periphery before waterproof construction; the pile top, the pile body and the periphery of the pile are coated with the penetration crystallization type waterproof paint of which the thickness is not less than 1.5kg/m2 cement base within 250mm, and the reinforcing steel bars cannot be polluted.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764721A (en) * | 2020-07-07 | 2020-10-13 | 中交三公局第一工程有限公司 | Water leakage prevention construction method for building pool of building |
| CN112854272A (en) * | 2021-01-26 | 2021-05-28 | 西南科技大学 | Preparation method of underground engineering wall ground seepage drainage system |
| CN113605471A (en) * | 2021-07-23 | 2021-11-05 | 中国水利水电第十六工程局有限公司 | Method for treating shallow cracks on concrete surface |
| CN114000595A (en) * | 2021-12-09 | 2022-02-01 | 中铁建设集团有限公司 | Construction process for spraying quick-setting rubber asphalt waterproof paint |
| CN114108698A (en) * | 2021-12-21 | 2022-03-01 | 中建科工集团有限公司 | Construction method of basement bottom plate and outer wall waterproof structure |
| CN114197539A (en) * | 2021-12-17 | 2022-03-18 | 中建八局第四建设有限公司 | Waterproof and waterproof overlap joint structure of coating of coiled material |
| CN114439158A (en) * | 2021-12-21 | 2022-05-06 | 河北三棵树涂料有限公司 | Waterproof construction method for rubber asphalt waterproof coating roof |
| CN114575477A (en) * | 2022-03-14 | 2022-06-03 | 中建八局第二建设有限公司 | Basement exterior wall waterproof construction method and waterproof structure |
| CN114961125A (en) * | 2022-08-01 | 2022-08-30 | 江苏凯伦建材股份有限公司 | Construction method of roof system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764721A (en) * | 2020-07-07 | 2020-10-13 | 中交三公局第一工程有限公司 | Water leakage prevention construction method for building pool of building |
| CN112854272A (en) * | 2021-01-26 | 2021-05-28 | 西南科技大学 | Preparation method of underground engineering wall ground seepage drainage system |
| CN112854272B (en) * | 2021-01-26 | 2022-06-07 | 西南科技大学 | Preparation method of underground engineering wall ground seepage drainage system |
| CN113605471A (en) * | 2021-07-23 | 2021-11-05 | 中国水利水电第十六工程局有限公司 | Method for treating shallow cracks on concrete surface |
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| CN114108698A (en) * | 2021-12-21 | 2022-03-01 | 中建科工集团有限公司 | Construction method of basement bottom plate and outer wall waterproof structure |
| CN114439158A (en) * | 2021-12-21 | 2022-05-06 | 河北三棵树涂料有限公司 | Waterproof construction method for rubber asphalt waterproof coating roof |
| CN114439158B (en) * | 2021-12-21 | 2023-11-28 | 河北三棵树涂料有限公司 | Waterproof construction method for rubber asphalt waterproof coating roof |
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Application publication date: 20200421 |