CN112392140A - Basement waterproof construction process - Google Patents
Basement waterproof construction process Download PDFInfo
- Publication number
- CN112392140A CN112392140A CN202011416502.4A CN202011416502A CN112392140A CN 112392140 A CN112392140 A CN 112392140A CN 202011416502 A CN202011416502 A CN 202011416502A CN 112392140 A CN112392140 A CN 112392140A
- Authority
- CN
- China
- Prior art keywords
- layer
- waterproof
- coiled material
- basement
- base layer
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Classifications
-
- 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
- E04B1/0007—Base structures; Cellars
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- 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
- 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
-
- 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
- E04B1/68—Sealings of joints, e.g. expansion joints
Abstract
The invention relates to the field of building construction, and provides a basement waterproof construction process. The basement bottom plate adopts a waterproof concrete bottom plate; two 0.7 thick polyethylene polypropylene fiber composite waterproof rolls plus 1.3 thick polymer cement binder; c15 concrete cushion layer with thickness of 100 is leveled to meet the requirement of first-level water resistance; the basement roof is waterproof by covering planting soil or hard paving, a polyester non-woven fabric water filtering layer, a continuous pressure film drainage board drainage layer, a fine concrete protective layer, a slope finding inner arrangement (∅ 6@200 bidirectional steel bars, a polyethylene film isolation layer, a SBS root penetration resistant waterproof coiled material, a cement mortar leveling layer with the thickness of 20: 3, an ethylene propylene diene monomer waterproof coiled material and a base layer treating agent layer) to achieve the primary waterproof effect, the basement exterior wall is waterproof by adopting an XPS polystyrene board protective layer and a plurality of layers of polyurethane waterproof coatings, and the base layer treating agent is one layer to achieve the primary waterproof effect.
Description
Technical Field
The invention relates to the field of building construction, in particular to a basement waterproof construction process.
Background
Along with the popularization of high-rise buildings, basements of the buildings are more and more popular. Because the periphery of the basement is often provided with underground water or water in soil, if the basement bottom plate and the outer wall are not waterproof in place, leakage is easy to occur; the leakage of the basement can seriously affect the normal use of the basement, and the repair cost is very expensive. The traditional method for basement waterproofing is to lay waterproof coiled materials or brush waterproof coatings on a concrete base layer, although the types and the quality of various waterproof materials are continuously improved and improved, due to the influences of cracks generated by concrete expansion and contraction, improper treatment of the lap joints of the waterproof materials and different underground water heights, a single mode of combining rigidity self-waterproofing and flexible waterproofing is difficult to meet the waterproofing requirement on occasions with higher waterproofing requirements.
Disclosure of Invention
In order to meet the technical requirement of water resistance under the ground, the invention aims to provide the basement water-proof construction process with good water-proof effect.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: basement waterproofing construction technology, including basement bottom plate waterproofing, basement outer wall waterproofing and basement roof waterproofing:
1. basement bottom plate waterproofing includes the following steps:
(a) paving a waterproof concrete bottom plate on the bottom surface, leveling the bottom plate, filling the joints, cleaning the bottom plate and performing dust collection treatment;
(b) two layers of polyethylene polypropylene fiber composite waterproof coiled materials are paved and adhered on the bottom plate, the waterproof coiled materials are adhered to the bottom plate through cement adhesives, and the adhesion rate between the waterproof coiled materials and the bottom plate is more than or equal to 85%; the lapping width of the long sides of the adjacent waterproof rolls is more than 10cm, the lapping width of the short sides is 10-15cm, and the waterproof rolls are bent at the included angle between the wall surface and the ground by more than 30 cm; sticking the seams of the waterproof coiled materials by a strip sticking method, wherein the sticking width of each edge of each waterproof coiled material is not less than 15 mm;
(c) after the coiled material is paved, a polymer cement binder and a concrete layer are paved on the upper surface of the coiled material for leveling;
2. basement side fascia waterproofing includes the following steps:
(a) cleaning and leveling the surface of the base layer of the outer wall body and performing dust collection treatment;
(b) firstly, mixing polyurethane A material, polyurethane B material and dimethylbenzene in a ratio of 1: 1.5: 2, adding a buffering agent and a coagulant, uniformly brushing the mixture on the surface of a wall base layer after the mixture is uniformly stirred by hand, wherein the brushing amount is about 0.3Kg/m2, and drying the mixture for 4 hours after the brushing is finished to form a base layer treating agent layer;
(c) mixing polyurethane according to the proportion of a material A to a material B to be 1: 2, adding a buffering agent and a coagulant, forcibly stirring for 3-5min by an electric stirrer, brushing the surface of the base layer treating agent layer, and sequentially brushing four layers, wherein the thickness of the coating is 1.5-2.0 mm; the coating direction between adjacent coating layers is vertical, and the coating interval time of the adjacent layers is 24-72 h;
(d) and after the last coating is cured, sticking an XPS polystyrene board protective layer with the thickness of 40mm on the outer surface of the coating.
3. Basement roof waterproofing includes the following steps:
(a) leveling a basement top plate base layer by using cement mortar, cleaning and performing dust collection treatment;
(b) brushing a base layer treating agent on the surface of the base layer to form a base layer treating agent layer;
(c) laying a thick ethylene propylene diene monomer waterproof coiled material on the surface of the base layer treating agent layer, coating 100% of the waterproof coiled material and the surface of the top base layer treating agent layer, drying the adhesive, and then laying the waterproof coiled material on the surface of the base layer treating agent layer;
(d) laying an SBS root-resistant waterproof coiled material on the surface of the waterproof coiled material, firmly adhering the coiled material at the starting end of the SBS root-resistant waterproof coiled material to the waterproof coiled material, holding a flame blowtorch to face the SBS root-resistant waterproof to be laid, enabling the blowtorch to carry out reciprocating movement baking 0.3-0.5m away from the SBS root-resistant waterproof coiled material and a heating part of a base layer until a glue layer on the bottom surface of the coiled material is black and glossy and is mixed with micro bubbles, and timely pushing and rolling the coiled material for adhering and laying;
(e) laying a polyethylene film as an isolating layer on the top of the SBS root-resistant waterproof coiled material; a C30 fine stone concrete protective layer is laid above the isolation layer to serve as a rigid protection layer, a thick continuous pressed film drainage plate drainage layer is laid on the top of the rigid protection layer, a polyester non-woven fabric layer is laid on the top of the drainage layer to serve as a filter layer, and planting soil or hard paving land is covered on the top of the filter layer.
Further, the air conditioner is provided with a fan,
after the technical scheme is adopted, the invention has the beneficial effects that: the basement bottom plate adopts a waterproof concrete bottom plate; two 0.7 thick polyethylene polypropylene fiber composite waterproof rolls plus 1.3 thick polymer cement binder; c15 concrete cushion layer with thickness of 100 is leveled to meet the requirement of first-level water resistance; the basement roof is waterproof by covering planting soil or hard paving, a polyester non-woven fabric water filtering layer, a continuous film pressing drainage plate for drainage, a fine concrete protective layer for slope arrangement and inner matching (∅ 6@200 bidirectional steel bars, a polyethylene film isolation layer, SBS root penetration resistant waterproof coiled materials, a cement mortar leveling layer with the thickness of 20: 3, ethylene propylene diene monomer waterproof coiled materials and a base layer treating agent layer, so that the primary waterproof effect is achieved, the basement exterior wall is waterproof by adopting an XPS polystyrene board protective layer and a multi-layer polyurethane waterproof coating, and the primary waterproof effect is achieved by adopting the base layer treating agent layer.
The process adopts different modes and measures according to the actual waterproof requirements of all parts of the basement, has good waterproof effect and meets the requirement of a first-level waterproof grade.
Detailed Description
The following further details the embodiments of the present invention:
the basement waterproof construction process comprises three aspects of basement bottom plate waterproof construction, basement outer wall waterproof construction and basement top plate waterproof construction.
The waterproof construction of basement bottom plate includes:
(a) laying a waterproof concrete bottom plate on the bottom surface, leveling the bottom plate, filling the joints, and cleaning dust on the bottom plate;
(b) paving a polyethylene polypropylene fiber composite waterproof coiled material on the bottom plate: pre-spreading and aligning a waterproof coiled material with the thickness of 0.7mm, folding and rolling two ends of the waterproof coiled material to form a double-layer waterproof coiled material, pouring the prepared polymer mixture onto a base layer of a bottom plate, and uniformly scraping the mixture by using a scraper, wherein the thickness of the cement adhesive is 1.3 mm; the waterproof coiled material is pushed forward, air left in the coiled material is removed by a scraper, redundant adhesive is scraped, and the adhesive rate between the coiled material and the bottom plate is more than or equal to 85 percent; in the laying process, the lapping width of the long sides of the adjacent waterproof rolls is more than 10cm, the lapping width of the short sides is 10-15cm, and the waterproof rolls are bent at the included angle between the wall surface and the ground by more than 30cm and nailed by a staple; sticking the seams of the coiled materials by a strip sticking method, wherein the sticking width of each edge of each coiled material is not less than 15 mm;
(c) after the coiled material is paved, a polymer cement binder with the thickness of 1-2mm and a C15 concrete layer with the thickness of 100mm are paved on the upper surface of the coiled material for leveling;
basement side fascia waterproofing includes the following steps:
(a) cleaning the surface of the base layer of the outer wall body, leveling and performing dust collection treatment;
(b) preparing the polyurethane waterproof coating. The polyurethane waterproof coating consists of two components, wherein the material A consists of polyurethane prepolymer containing isocyanate group (-NCO); the material B is composed of filler mainly containing polyhydroxy (-OH) solidified body and auxiliary agents such as plasticizer, tackifier, mildew preventive, diluent and the like. The two components are mixed and stirred uniformly, isocyanate groups and hydroxyl groups generate chemical reaction, and an integral rubber film with rich elasticity is formed after full reaction, so that the waterproof effect is remarkable, the adhesive force is strong, and the tensile property is good; the content of isocyanate group in the A material is 3.5 +/-0.2%. The content of hydroxyl in the material B is 0.7 +/-0.1 percent, and the concentration of phosphoric acid is 85 percent;
firstly, mixing polyurethane A material, polyurethane B material and dimethylbenzene in a ratio of 1: 1.5: 2, and adding phosphoric acid with the concentration of 85% of a buffering agent and dibutyltin dilaurate serving as a coagulant, wherein the adding amount of the phosphoric acid accounts for 0.2-0.5% of the mass ratio of the component A, and the adding amount of the dibutyltin dilaurate accounts for 0.2-0.3% of the mass ratio of the component A. Uniformly brushing the mixture on the surface of a wall base layer after the mixture is uniformly stirred by hand, wherein the brushing amount is about 0.3Kg/m2, and drying the mixture for 4 hours after the brushing is finished to form a base layer treating agent layer;
(c) mixing polyurethane according to the proportion of a material A to a material B to be 1: 2, adding a buffering agent phosphoric acid and a coagulant dibutyltin dilaurate; 1. the adding amount of the phosphoric acid accounts for 0.2-0.5% of the mass ratio of the component A, and the adding amount of the dibutyltin dilaurate accounts for 0.2-0.3% of the mass ratio of the component A. Forcibly stirring for 3-5min by an electric stirrer, coating on the surface of the base layer treating agent layer, and uniformly scraping with a plastic or rubber scraper to obtain a coating with thickness of 1.5 mm; sequentially coating and scraping three layers of coating films, wherein the coating and scraping directions between adjacent coating films are vertical, and the coating and scraping intervals between adjacent layers are 24-72 h; forming four layers of polyurethane waterproof coating layers;
(c) and after the last coating is cured, sticking an XPS polystyrene board protective layer with the thickness of 40mm on the outer surface of the coating.
Basement roof waterproofing includes the following steps:
(a) leveling a basement top plate base layer by using cement mortar, cleaning and performing dust collection treatment;
(b) brushing a base layer treating agent on the surface of the base layer to form a base layer treating agent layer, wherein the base layer treating agent layer can be the same as that on the outer wall body;
(c) laying a thick ethylene propylene diene monomer waterproof coiled material on the surface of the base layer treating agent layer, and unfolding and positioning the waterproof coiled material; folding the waterproof coiled material by half to expose half of the bottom surface of the waterproof coiled material, brushing an adhesive on the back surfaces of the base layer and the waterproof coiled material by using a fluff roller to ensure that the two surfaces of the roof base layer and the coiled material are coated by 100 percent, drying the adhesive, folding the waterproof coiled material outwards along the coated side in the long direction, and paving the waterproof coiled material on the roof base layer coated with the adhesive; repeating the above actions until the waterproof coiled material is completely bonded with the top plate base layer;
(d) laying an SBS root-resistant waterproof coiled material on the surface of the waterproof coiled material, firmly adhering the coiled material at the starting end of the SBS root-resistant waterproof coiled material to the waterproof coiled material, holding a flame blowtorch to face the SBS root-resistant waterproof to be laid, enabling the blowtorch to carry out reciprocating movement baking 0.3-0.5m away from the SBS root-resistant waterproof coiled material and a heating part of a base layer until a glue layer on the bottom surface of the coiled material is black and glossy and is mixed with micro bubbles, and timely pushing and rolling the coiled material for adhering and laying;
(e) laying a polyethylene film as an isolating layer on the top of the SBS root-resistant waterproof coiled material; a C30 fine-stone concrete protective layer with the thickness of 50mm is paved above the isolation layer to serve as a rigid protection layer, a continuous-pressing-film drainage plate drainage layer with the thickness of 8mm is paved on the top of the rigid protection layer, a polyester non-woven fabric layer is paved on the top of the drainage layer to serve as a filter layer, and planting soil or hard paving land is covered on the top of the filter layer.
Claims (4)
1. Basement waterproofing construction technology, including basement bottom plate waterproofing, basement outer wall waterproofing and basement roof waterproofing, its characterized in that:
(1) basement bottom plate waterproofing includes the following steps:
(a) paving a waterproof concrete bottom plate on the bottom surface, leveling the bottom plate, filling the joints, cleaning the bottom plate and performing dust collection treatment;
(b) two layers of polyethylene polypropylene fiber composite waterproof coiled materials are paved and adhered on the bottom plate, the waterproof coiled materials are adhered to the bottom plate through cement adhesives, and the adhesion rate between the waterproof coiled materials and the bottom plate is more than or equal to 85%; the lapping width of the long sides of the adjacent waterproof rolls is more than 10cm, the lapping width of the short sides is 10-15cm, and the waterproof rolls are bent at the included angle between the wall surface and the ground by more than 30 cm; sticking the seams of the waterproof coiled materials by a strip sticking method, wherein the sticking width of each edge of each waterproof coiled material is not less than 15 mm;
(c) after the coiled material is paved, a polymer cement binder and a concrete layer are paved on the upper surface of the coiled material for leveling;
(2) basement side fascia waterproofing includes the following steps:
(a) cleaning and leveling the surface of the base layer of the outer wall body and performing dust collection treatment;
(b) firstly, mixing polyurethane A material, polyurethane B material and dimethylbenzene in a ratio of 1: 1.5: 2, adding a buffering agent and a coagulant, uniformly brushing the mixture on the surface of a wall base layer after the mixture is uniformly stirred by hand, wherein the brushing amount is about 0.3Kg/m2, and drying the mixture for 4 hours after the brushing is finished to form a base layer treating agent layer;
(c) mixing polyurethane according to the proportion of a material A to a material B to be 1: 2, adding a buffering agent and a coagulant, forcibly stirring for 3-5min by an electric stirrer, brushing the surface of the base layer treating agent layer, and sequentially brushing four layers, wherein the thickness of the coating is 1.5-2.0 mm; the coating direction between adjacent coating layers is vertical, and the coating interval time of the adjacent layers is 24-72 h;
(d) after the last coating is cured, sticking an XPS polystyrene board protective layer with the thickness of 40mm on the outer surface of the coating;
(3) basement roof waterproofing includes the following steps:
(a) leveling a basement top plate base layer by using cement mortar, cleaning and performing dust collection treatment;
(b) brushing a base layer treating agent on the surface of the base layer to form a base layer treating agent layer;
(c) laying a thick ethylene propylene diene monomer waterproof coiled material on the surface of the base layer treating agent layer, coating 100% of the waterproof coiled material and the surface of the top base layer treating agent layer, drying the adhesive, and then laying the waterproof coiled material on the surface of the base layer treating agent layer;
(d) laying an SBS root-resistant waterproof coiled material on the surface of the waterproof coiled material, firmly adhering the coiled material at the starting end of the SBS root-resistant waterproof coiled material to the waterproof coiled material, holding a flame blowtorch to face the SBS root-resistant waterproof to be laid, enabling the blowtorch to carry out reciprocating movement baking 0.3-0.5m away from the SBS root-resistant waterproof coiled material and a heating part of a base layer until a glue layer on the bottom surface of the coiled material is black and glossy and is mixed with micro bubbles, and timely pushing and rolling the coiled material for adhering and laying;
(e) laying a polyethylene film as an isolating layer on the top of the SBS root-resistant waterproof coiled material; a C30 fine stone concrete protective layer is laid above the isolation layer to serve as a rigid protection layer, a thick continuous pressed film drainage plate drainage layer is laid on the top of the rigid protection layer, a polyester non-woven fabric layer is laid on the top of the drainage layer to serve as a filter layer, and planting soil or hard paving land is covered on the top of the filter layer.
2. The basement waterproofing process according to claim 1, wherein the isocyanate group content in the material A is 3.5 ± 0.2%, and the hydroxyl group content in the material B is 0.7 ± 0.1%.
3. The basement waterproofing process according to claim 1 wherein the buffering agent is phosphoric acid and the accelerating agent is dibutyltin dilaurate.
4. The waterproof construction process for the basement according to claim 1, wherein the adding amount of the phosphoric acid is 0.2-0.5% of the mass ratio of the component A, and the adding amount of the dibutyltin dilaurate is 0.2-0.3% of the mass ratio of the component A.
Priority Applications (1)
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| CN202011416502.4A CN112392140A (en) | 2020-12-07 | 2020-12-07 | Basement waterproof construction process |
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| CN202011416502.4A CN112392140A (en) | 2020-12-07 | 2020-12-07 | Basement waterproof construction process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922034A (en) * | 2021-04-12 | 2021-06-08 | 珠海市世纪建设工程有限公司 | Basement waterproof structure and construction method thereof |
| CN113216632A (en) * | 2021-06-03 | 2021-08-06 | 中国电建集团四川工程有限公司 | Basement waterproof construction method |
| CN114197540A (en) * | 2021-12-29 | 2022-03-18 | 中建八局第二建设有限公司 | JS waterproof coating repairing and reinforcing structure and construction method |
| CN114197524A (en) * | 2021-11-29 | 2022-03-18 | 中国十七冶集团有限公司 | Waterproof construction method for civil air defense basement |
| CN114382287A (en) * | 2022-02-21 | 2022-04-22 | 中国二十冶集团有限公司 | Basement roof waterproof construction method |
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| CN108277892A (en) * | 2018-01-24 | 2018-07-13 | 东莞市粤惠建筑工程技术咨询有限公司 | A kind of buildings waterproof construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112922034A (en) * | 2021-04-12 | 2021-06-08 | 珠海市世纪建设工程有限公司 | Basement waterproof structure and construction method thereof |
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| CN114197524A (en) * | 2021-11-29 | 2022-03-18 | 中国十七冶集团有限公司 | Waterproof construction method for civil air defense basement |
| CN114197540A (en) * | 2021-12-29 | 2022-03-18 | 中建八局第二建设有限公司 | JS waterproof coating repairing and reinforcing structure and construction method |
| CN114382287A (en) * | 2022-02-21 | 2022-04-22 | 中国二十冶集团有限公司 | Basement roof waterproof construction method |
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