Anti-seepage construction method for basement exterior wall root internal corner part

Abstract

The invention relates to the field of constructional engineering, and discloses a basement exterior wall root internal corner part anti-seepage construction method which comprises the following steps: template adjustment: before concrete is poured into a basement, a grout pressing plate is additionally arranged at the root of a suspended formwork, then inclined supports are arranged on the grout pressing plate at intervals, and a round hole is formed in the middle of the grout pressing plate; wood beams are arranged, specifically, after the formwork is adjusted, the formwork is installed and reinforced through the first wood beams at the position needing to be waterproof, and the second wood beams are arranged at the bottom of the formwork; and internal corner treatment is conducted, specifically, after the battens are arranged, concrete pouring of the basement is conducted, formworks are removed after concrete is solidified, and the surface of the concrete is treated. According to the internal corner structure, the slurry pressing plate is arranged at the internal corner part to reinforce concrete vibration, and the template is removed after concrete pouring is completed, so that the internal corner part is a 40mm chamfer after the concrete is poured and solidified, the conditions of infirm bonding and hollowing of the internal corner are effectively avoided, and the bonding firmness of the waterproof layer and the structural layer is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, in particular to a leakage prevention construction method for a negative corner portion at the root of an outer wall of a basement. Background Art

[0002] ‌‌Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. It is an important project that meets people's needs for production, residence, study, and public activities; it includes the construction and installation of housing buildings and municipal infrastructure projects and their ancillary facilities. Construction engineering is called construction engineering in a broader scope. Construction engineering refers to the general term for various types of buildings and engineering facilities that provide the material and technical basis for human life and production. Construction engineering can be divided into three categories according to its natural properties: construction engineering, civil engineering, and mechanical and electrical engineering; construction engineering has the basic attributes of comprehensiveness, sociality, practicality, and unity. It is an engineering project that forms comprehensive production capacity or exerts engineering benefits in the process of fixed asset reproduction.

[0003] At present, anti-leakage has become a quality issue that the construction industry pays great attention to at this stage. With the promulgation of new specifications, increasingly stringent construction processes and acceptance standards, usually during the underground waterproofing construction stage, the waterproofing construction quality of the inner corners is not firmly adhered, or the cement mortar used to apply the inner corners has insufficient strength of the arc, delamination from the structure, and other factors, resulting in water penetration and leakage of the underground exterior walls, and it is difficult to repair later. In order to avoid the quality risk of leakage in this area and reduce leakage accidents, the present invention has developed a method for anti-leakage construction of the inner corners at the root of the basement exterior wall to improve the above situation. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a method for anti-leakage construction of the inner corner at the root of the basement outer wall, which solves the problem that during the construction of the inner corner, cement mortar is used to apply the arc of the splayed corner, but the strength of the cement mortar is insufficient and it is delaminated with the structural layer, causing water to penetrate and leak from the underground outer wall, and it is difficult to repair it later.

[0005] To achieve the above purpose, the present invention is implemented by the following technical scheme: a method for anti-leakage construction of the inner corner of the basement outer wall root, comprising the following steps: S1. Formwork adjustment: Before pouring concrete in the basement, add a grouting plate at the root of the hanging formwork, then set oblique supports at intervals on the grouting plate, and open a round hole in the middle of the grouting plate; S2. Timber setting: After the template is adjusted, the template is installed and reinforced by the first timber at the location that needs waterproofing, and the second timber is set at the bottom; S3. Treatment of internal corners: After the wood is set, pour the concrete of the basement. After the concrete solidifies, remove the formwork and treat the concrete surface. S4. Waterproof layer construction: pre-treat the waterproof layer in the area that needs waterproofing, and then carry out waterproof layer construction; S5. Subsequent testing: After the waterproof layer construction is completed, a water pressure test is carried out.

[0006] Preferably, in step S1, the width of the grouting plate is not less than 300 mm, the interval distance is 400 mm, the diameter of the circular hole is 50 mm, and the side of the grouting plate away from the inclined support is evenly coated with template oil.

[0007] Preferably, in step S2, the first wood block and the second wood block both have a structure of 40 mm*80 mm, are made of pine wood that has been treated with antiseptic treatment, and have a moisture content of 8%-12%.

[0008] Preferably, in the step S2, a chamfer of 40 mm is provided on one side of the second wooden square, and template oil is evenly applied on the chamfer of the second wooden square.

[0009] Preferably, in step S3, the concrete surface is processed by grinding and cleaning the poured concrete surface with a concrete grinder.

[0010] Preferably, the pretreatment in step S4 includes surface cleaning, repairing, drying, and applying an interface agent, and the waterproof layer construction includes the construction of a waterproof additional layer of a roll material and the construction of a waterproof additional layer of a coating film.

[0011] Preferably, the repairing is to repair defects in the area that needs waterproofing, and the defects include cracks and honeycombs. The drying is to make the dryness of the area that needs waterproofing less than 6% through drying equipment. The interface agent application is to evenly apply the interface agent to the area that needs waterproofing, and the thickness is 0.5mm-2mm.

[0012] Preferably, the additional layer of waterproof roll material is constructed from bottom to top and is gradually extruded after hot melting, and the additional layer of waterproof coating film is constructed by providing a mesh cloth as a reinforcement layer.

[0013] The present invention provides a method for preventing leakage at the inner corner of the basement outer wall. It has the following beneficial effects: 1. The present invention strengthens the vibration of concrete by arranging a grouting plate at the internal corner, adopts a 40mm*80mm wooden square, and arranges a 40mm chamfer at the root of the hanging formwork. After the concrete is poured, the formwork is removed, so that after the concrete is poured and solidified, the internal corner has a 40mm chamfer, thereby effectively avoiding the occurrence of loose bonding and hollowing at the internal corner, strengthening the bonding between the waterproof layer and the structural layer, and greatly reducing the internal corner. During construction, cement mortar is used to apply the arc of the splayed corner, but the cement mortar is not strong enough and is delaminated with the structural layer, causing water to flow through the underground exterior wall and leakage, and the problem that it is difficult to repair later occurs, effectively avoiding the risk of leakage.

[0014] 2. The present invention sets the chamfer of the second wooden square so that after the concrete is poured and solidified, the internal corner is chamfered with a radius of 40 mm, thereby eliminating the subsequent process of chamfering the internal corner with cement mortar, reducing the amount of plastering at the internal corner and the time of plastering at the internal corner, improving construction efficiency, saving construction period, and reducing stress concentration during concrete pouring and the risk of cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A method flow chart of a method for anti-leakage construction of the inner corner of the basement outer wall root proposed by the present invention; Figure 2 It is a schematic diagram of the structure of the second wood square of the present invention; Figure 3 This is a schematic diagram of the completion of the processing of the inner corner of the present invention.

[0016] Among them, 1. oblique support; 2. grouting board; 3. first wooden beam; 4. second wooden beam. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] Please see attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides a method for preventing leakage at the inner corner of the basement outer wall, comprising the following steps: S1. Formwork adjustment: Before pouring concrete in the basement, a grouting plate 2 is added to the root of the hanging formwork, and then oblique supports 1 are arranged at intervals on the grouting plate, and a round hole is opened in the middle of the grouting plate 2; S2, wood beam setting: After the template is adjusted, the template is installed and reinforced by the first wood beam 3 at the part that needs waterproofing, and the second wood beam is set at the bottom; S3. Treatment of internal corners: After the wood is set, pour the concrete of the basement. After the concrete solidifies, remove the formwork and treat the concrete surface. S4. Waterproof layer construction: pre-treat the waterproof layer in the area that needs waterproofing, and then carry out waterproof layer construction; S5. Subsequent testing: After the waterproof layer construction is completed, a water pressure test is carried out.

[0019] Specifically, the main parts of the roots of the inner corners of the basement outer wall are in the foundation raft guide wall, the vertical shaft on the garage roof, and the wall of the structure out of the garage. By adding a grouting plate 2 before pouring concrete, it is helpful to disperse the weight of the concrete and improve the stability of the formwork, thereby preventing deformation during concrete pouring and avoiding subsequent leakage problems. The circular holes opened in the grouting plate allow gas to be released during concrete pouring, thereby reducing the formation of bubbles during concrete pouring and facilitating the injection of slurry in the later stage. The setting of the inclined support 1 provides additional stability, thereby ensuring that the formwork does not shift during the pouring process.

[0020] The first wooden beam is used to reinforce the formwork to ensure that the formwork remains stable during concrete pouring to avoid deformation. The second wooden beam provides additional support to enhance the compressive resistance of the entire structure. By pouring concrete, after it solidifies, the inner corner is chamfered with a 40mm chamfer, thus eliminating the subsequent process of chamfering the inner corner with cement mortar. The surface of the poured concrete can be treated to remove surface unevenness and impurities, thereby ensuring the adhesion of the waterproof layer and enhancing the waterproof effect. The cleaned surface provides a good base for subsequent waterproof construction.

[0021] By pre-treating the waterproof layer at the part that needs to be waterproofed, it is ensured that the waterproof layer can be well combined with the substrate, and the defects can be repaired to avoid subsequent leakage. The overall waterproof ability is enhanced through the construction of the waterproof layer, and the overall waterproofness is tested by a water pressure test to complete the construction; through the gradual implementation of the construction method of the present invention, the problem of using cement mortar to apply the splayed arc at the internal corner during construction is solved, but the cement mortar is not strong enough and is delaminated with the structural layer, causing water to penetrate the underground exterior wall and leak, and it is difficult to repair it later.

[0022] Please see attached Figure 2 , Attachment Figure 3 In step S1, the width of the grouting plate is not less than 300 mm, the interval is 400 mm, the diameter of the round hole is 50 mm, and the side of the grouting plate away from the inclined support is evenly coated with template oil.

[0023] Specifically, the setting of the grouting plate 2 strengthens the vibration of the concrete, increases the contact area of ​​the grouting area, and effectively supports the concrete, thereby preventing displacement during pouring, thereby ensuring the overall strength and sealing of the inner corner during the concrete pouring process and reducing the risk of leakage in the later stage; the stability of the support can be ensured by the 400mm interval, while avoiding excessive concentration that causes excessive local force, thereby improving the overall rigidity of the formwork and maintaining the shape stability during concrete pouring; the setting of the round hole allows gas to be released during concrete pouring, reducing the formation of bubbles during concrete pouring, and the application of formwork oil reduces the adhesion between the concrete and the grouting plate, which is convenient for subsequent removal.

[0024] Please see attached Figure 2 , Attachment Figure 3 In step S2, the structures of the first and second wooden squares are both 40mm*80mm, and the material is pine wood that has been treated with antiseptics, with a moisture content of 8%-12%; in step S2, a 40mm chamfer is set on one side of the second wooden square, and the chamfer of the second wooden square is evenly coated with formwork oil; in step S3, the concrete surface is processed by a concrete grinder to grind the poured concrete surface flat and clean it.

[0025] Specifically, the structures of the first wooden beam and the second wooden beam are both 40mm*80mm, and the material is anti-corrosion treated pine wood with a moisture content of 8%-12%, which ensures the strength and stability of the wooden beams and prevents deformation, thereby enhancing the supporting effect of the formwork and improving the safety during concrete pouring.

[0026] By setting the chamfer of the second wooden square, the inner corner will be chamfered with 40mm after the concrete is poured and solidified, which effectively avoids the loose bonding and hollowing of the inner corner, and saves the subsequent process of chamfering the inner corner with cement mortar, thereby reducing the amount of plastering and the time of plastering at the inner corner, improving construction efficiency, saving construction period, and reducing stress concentration during concrete pouring, reducing the risk of cracking, and strengthening the bonding between the waterproof layer and the structural layer, greatly reducing the inner corner. During construction, cement mortar is used to apply the eight-shaped arc, but the strength of the cement mortar is insufficient and the stratification with the structural layer causes water to flow through the underground exterior wall and leakage, and problems that are difficult to repair later will occur, effectively avoiding the risk of leakage.

[0027] By applying formwork oil, the adhesion between the concrete and the second wooden square is reduced, which facilitates the subsequent removal of the formwork. The solidified concrete surface is polished smooth by a grinder to remove surface burrs and irregularities, ensure good bonding between the waterproof layer and the concrete surface, improve the adhesion of the waterproof layer, and ensure a lasting waterproof effect.

[0028] In step S4, the pretreatment includes surface cleaning, repairing, drying, and applying the interface agent. The waterproof layer construction includes the construction of the roll waterproof additional layer and the construction of the film waterproof additional layer. The repair is to repair the defects of the parts that need to be waterproof, and the defects include cracks and honeycombs. The drying is to make the dryness of the parts that need to be waterproof less than 6% through drying equipment. The interface agent application is to evenly apply the interface agent to the parts that need to be waterproof, with a thickness of 0.5mm-2mm. The roll waterproof additional layer is constructed from bottom to top during construction, and is gradually extruded after hot melting. The film waterproof additional layer is constructed by setting a mesh cloth as a reinforcement layer during construction.

[0029] Specifically, through surface cleaning, dust, oil and other impurities are removed to enhance the adhesion of the waterproof layer; through repairing, defects such as cracks and honeycombs are filled to ensure that the foundation surface is smooth and flat; through drying, the humidity is controlled below 6% to prevent moisture from affecting the construction quality of the waterproof layer; through the application of interface agent, the adhesion between the concrete and the waterproof layer is enhanced to improve the waterproof performance; when the roll waterproof additional layer is used for construction, it should be constructed from bottom to top, and gradually squeezed after hot melting to ensure that there is no hollowing on the bonding surface, thereby ensuring the sealing between layers and preventing moisture penetration; when the film waterproof additional layer is used for construction, a mesh cloth should be set as a reinforcement layer to increase the strength and durability of the waterproof layer.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preventing leakage at the inner corner of the basement outer wall, characterized in that: The following steps are involved: S1. Formwork adjustment: Before pouring concrete in the basement, add a grouting plate at the root of the hanging formwork, then set oblique supports at intervals on the grouting plate, and open a round hole in the middle of the grouting plate; S2. Timber setting: After the template is adjusted, the template is installed and reinforced by the first timber at the location that needs waterproofing, and the second timber is set at the bottom; S3. Treatment of internal corners: After the wood is set, pour the concrete of the basement. After the concrete solidifies, remove the formwork and treat the concrete surface. S4. Waterproof layer construction: pre-treat the waterproof layer in the area that needs waterproofing, and then carry out waterproof layer construction; S5. Subsequent testing: After the waterproof layer construction is completed, a water pressure test is carried out.

2. A method for preventing leakage at the inner corner of the basement outer wall according to claim 1, characterized in that: In the step S1, the width of the grouting plate is not less than 300 mm, the interval distance is 400 mm, the diameter of the round hole is 50 mm, and the side of the grouting plate away from the inclined support is evenly coated with template oil.

3. The anti-leakage construction method for the inner corner of the basement outer wall according to claim 1 is characterized by: In the step S2, the first and second wooden blocks have a structure of 40 mm*80 mm, are made of pine wood that has been treated with antiseptic treatment, and have a moisture content of 8%-12%.

4. The anti-leakage construction method for the inner corner of the basement outer wall according to claim 1 is characterized by: In the step S2, a 40 mm chamfer is provided on one side of the second wooden square, and template oil is evenly applied on the chamfer of the second wooden square.

5. The anti-leakage construction method for the inner corner of the basement outer wall according to claim 1 is characterized by: In step S3, the concrete surface is processed by grinding the poured concrete surface flat and cleaning it with a concrete grinder.

6. The anti-leakage construction method for the inner corner of the basement outer wall according to claim 1 is characterized by: The pretreatment in step S4 includes surface cleaning, repairing, drying, and applying an interface agent, and the waterproof layer construction includes the construction of a waterproof additional layer of a roll material and the construction of a waterproof additional layer of a coating film.

7. A method for preventing leakage at the inner corner of the basement outer wall according to claim 6, characterized in that: The repairing is to repair the defects of the parts that need to be waterproofed, and the defects include cracks and honeycombs. The drying is to make the dryness of the parts that need to be waterproofed less than 6% through drying equipment. The interface agent application is to evenly apply the interface agent to the parts that need to be waterproof, and the thickness is 0.5mm-2mm.

8. The anti-leakage construction method for the inner corner of the basement outer wall according to claim 6 is characterized by: The roll material waterproof additional layer is constructed from bottom to top during construction and is gradually extruded after hot melting. The coating film waterproof additional layer is constructed by setting a mesh cloth as a reinforcement layer during construction.

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