A waterproof construction method for a side wall post-pouring strip

Abstract

The application relates to the technical field of waterproof construction, and discloses a side wall post-pouring belt waterproof construction method, which comprises the following steps: S1: a vertical groove is arranged at the outside connecting joint between a post-pouring belt and a side wall; S2: the inner wall of the vertical groove, the outer wall of the post-pouring belt and the outer wall of the side wall are cleaned; S3: a first waterproof coating is brushed, and the first waterproof coating on the inner wall of the vertical groove is subjected to roughening treatment; and S4: after the waterproof coating is dried, waterproof mortar is filled, and the waterproof mortar is solidified; through the arrangement of the draw hook, the iron wire and the multi-point anchoring plate, the inside of the multi-point anchoring plate is filled with cement mortar, the waterproof layer outside the connecting joint between the post-pouring belt and the side wall can be protected, the post-pouring belt and the side wall do not need to be punched, the waterproof construction of the side wall post-pouring belt can be realized, the complete consistency of the side wall post-pouring belt structure is guaranteed, and the service life of the waterproof layer is prolonged.

Description

Technical Field

[0001] This invention relates to the field of waterproof construction technology, specifically a method for waterproof construction of post-cast strips on side walls. Background Technology

[0002] A post-construction strip in a side wall is a concrete strip left at a corresponding location in the foundation slab, wall, or beam during building construction to prevent harmful cracks that may occur in the reinforced concrete structure due to uneven shrinkage or settlement. The post-construction strip temporarily divides the structure into several parts; after a certain period of time, the concrete at this construction joint is poured to connect the structure into a whole, allowing for internal shrinkage of the components.

[0003] Post-cast strips serve to connect pre-cast concrete blocks into a unified whole in a building structure. If post-cast strips are not properly treated, moisture can enter through the joints, which will not only compromise the structure's airtightness, but also cause long-term water accumulation to corrode the reinforcing steel, accelerate concrete corrosion, and affect the structure's durability and safety.

[0004] Basements, garages, and swimming pools are structures that come into contact with moisture during use. If the post-cast strip is not effectively waterproofed, this moisture can seep into the building's interior through the gaps in the strip, leading to problems such as water seepage and mold growth on the walls. Furthermore, concrete shrinks during the hardening process, and the post-cast strip is designed to accommodate this shrinkage and structural deformation. If cracks appear on either side of the post-cast strip due to uneven settlement or shrinkage, moisture can seep through these cracks. A waterproof layer effectively reduces this risk and ensures the structural integrity.

[0005] The post-cast strip on the side wall typically employs a formwork system consisting of tie rods, steel pipes, and formwork. The design and construction of this system are crucial for ensuring the waterproofing performance of the post-cast strip. For example, in a post-cast strip with a width of 800mm, the tie rods are spaced 300mm laterally and 450mm vertically; such detailed treatment helps prevent moisture from seeping through the formwork gaps.

[0006] However, this method of waterproofing the post-cast strip of the side wall requires drilling holes in the post-cast strip and the side wall to install water-stop bolts and steel pipes, which damages the structure of the side wall and the post-cast strip. Therefore, this invention provides a method for waterproofing the post-cast strip of the side wall without damaging the structure of the side wall and the post-cast strip. Summary of the Invention

[0007] The purpose of this invention is to provide a method for waterproofing construction of post-cast strips in side walls, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a method for waterproofing construction of post-cast strips in side walls, comprising the following steps:

[0009] S1: A vertical groove is made at the connection joint between the post-cast strip and the outer side wall;

[0010] S2: Clean the inner wall of the vertical trench, the outer wall of the post-cast strip, and the outer wall of the side wall;

[0011] S3: Apply the first waterproof coating to the cleaned inner wall of the vertical trench, the outer wall of the post-pouring strip, and the outer wall of the side wall, and roughen the first waterproof coating on the inner wall of the vertical trench.

[0012] S4: After the waterproof coating has dried in the shade, set up a template on the outside of the vertical groove, then fill the area between the vertical groove and the template with waterproof mortar, and wait for the waterproof mortar to cure.

[0013] S5: Apply a second waterproof coating to the outside of the cured waterproof mortar and wait for the second waterproof coating to dry in the shade;

[0014] S6: Apply a layer of adhesive to the outside of the waterproof coating, and fix several hooks to the adhesive on the outer wall of the side wall and the outer wall of the post-cast strip with structural adhesive, and wait for the hooks to stick tightly.

[0015] S7: Tie the wire to the hook and cut a multi-point anchor plate of appropriate width;

[0016] S8: Connect the hook to the anchor body of the multi-point anchor plate using iron wire;

[0017] S9: Install a baffle on the side wall, and the baffle is attached to the outer wall of the multi-point anchor plate;

[0018] S10: Fill the space between the adhesive backing layer and the multi-point anchor plate with cement mortar and vibrate it evenly so that the anchor body of the multi-point anchor plate is completely submerged in the cement mortar.

[0019] S11: After the cement mortar has fully cured, the waterproof layer construction is complete.

[0020] As a further explanation of the present invention, the vertical groove has a V-shaped cross-section and extends from top to bottom through the connection joint between the post-cast strip and the side wall.

[0021] As a further explanation of the present invention, a waterstop plate is provided between the post-pouring strip and the side wall, the two ends of the waterstop plate are inclined surfaces, and one end of the inclined surface of the waterstop plate faces the side of the first waterproof coating.

[0022] As a further explanation of the present invention, the first waterproof coating and the second waterproof coating are applied in opposite directions, and the width of the first waterproof coating on the side wall is greater than 50 cm.

[0023] As a further explanation of the present invention, before applying the first waterproof layer, the inner wall of the vertical groove, the outer wall of the post-pouring strip, and the outer wall of the side wall are cleaned to ensure that there is no dust or oil. Then, the coating surface is repaired to fill cracks and holes to ensure that the surface is flat. After the coating surface dries, a layer of interface agent or sealing primer is applied to enhance the adhesion between the waterproof coating and the coating surface.

[0024] As a further explanation of the present invention, the thickness of the cement mortar is greater than the sum of the lengths of the hook and the anchor body.

[0025] As a further explanation of the present invention, the baffle includes side plates on both sides and a crossbar located in the middle. The side plates are attached to the two side walls of the multi-point anchor plate, and a plurality of crossbars are provided between the side plates. One side of the crossbar is attached to the outer wall of the multi-point anchor plate. The baffle is used for support when cement mortar is filled.

[0026] As a further explanation of the present invention, there are several hooks, and the several hooks are arranged in a longitudinal and transverse manner with equal spacing on the adhesive backing layer.

[0027] As a further explanation of the present invention, in S4, during the process of filling the waterproof mortar, a flat vibrator is used to vibrate the waterproof mortar evenly to avoid voids.

[0028] As a further explanation of the present invention, the multi-point anchoring plate is made of PE board material.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] This invention involves creating a vertical groove at the connection joint between the post-cast strip and the outer sidewall. This vertical groove makes the gap between the post-cast strip and the sidewall more regular, facilitating the application of the waterproof coating and ensuring its quality. The inner wall of the vertical groove, the outer wall of the post-cast strip, and the outer wall of the sidewall are cleaned. A first waterproof coating is then applied to these surfaces, and the first waterproof coating on the inner wall of the vertical groove is roughened. This roughening creates a textured, uneven surface, which helps improve the adhesion between the waterproof mortar and the waterproof layer. After the waterproof coating dries, a template is placed on the outside of the vertical groove. Waterproof mortar is then filled into the area between the vertical groove and the template, and the mortar is allowed to cure. The waterproof mortar then adheres to the vertical groove. The trench is filled and leveled to create a smooth surface at the junction of the post-cast strip and the side wall. A second waterproof coating is applied to the outside of the cured waterproof mortar and allowed to air dry. A layer of adhesive is applied to the outside of the second waterproof coating. Several hooks are fixed to the adhesive on the outer wall of the side wall and the outer wall of the post-cast strip using structural adhesive and allowed to adhere firmly. Wires are tied to the hooks, and multi-point anchor plates of appropriate width are cut. The hooks are connected to the anchor bodies of the multi-point anchor plates using wires. A baffle is installed on the side wall, fitting snugly against the outer wall of the multi-point anchor plates. Cement mortar is filled between the adhesive layer and the multi-point anchor plates and vibrated evenly to ensure that the anchor bodies of the multi-point anchor plates are completely submerged in the cement mortar. After the cement mortar has fully cured, the waterproof layer construction is complete.

[0031] This invention, through the use of hooks, wires, and multi-point anchor plates, combined with cement mortar filling the inner side of the multi-point anchor plates, can protect the waterproof layer on the outside of the connection joint between the post-cast strip and the side wall. It eliminates the need for drilling holes in the post-cast strip and the side wall, thus achieving waterproof construction of the post-cast strip of the side wall, ensuring the integrity and consistency of the post-cast strip structure, and increasing the service life of the waterproof layer. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a waterproof structure for a post-cast strip on a side wall according to the present invention;

[0033] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0034] Figure 3 This is a flowchart of a waterproofing construction method for post-cast strips on side walls according to the present invention.

[0035] In the diagram: 1. Side wall; 2. Post-cast strip; 3. Waterstop; 4. Vertical groove; 5. First waterproof coating; 6. Waterproof mortar; 7. Second waterproof coating; 8. Adhesive layer; 9. Hook; 10. Wire; 11. Multi-point anchor plate; 12. Anchor body; 13. Baffle; 14. Cement mortar. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Please see Figures 1-3 This invention provides a technical solution: a method for waterproofing construction of post-cast strips in side walls, comprising the following steps:

[0038] S1: A vertical groove 4 is made at the connection joint between the post-pouring strip 2 and the side wall 1 on the outside. The vertical groove 4 has a V-shaped cross section and runs through the connection joint between the post-pouring strip 2 and the side wall 1 from top to bottom. The vertical groove 4 can make the gap between the post-pouring strip 2 and the side wall 1 regular, which is convenient for the construction of the waterproof coating and helps to ensure the quality of the waterproof coating.

[0039] S2: Clean the inner wall of the vertical groove 4, the outer wall of the post-pouring strip 2, and the outer wall of the side wall 1; Before applying the first waterproof layer, clean the inner wall of the vertical groove 4, the outer wall of the post-pouring strip 2, and the outer wall of the side wall 1 to ensure that there is no dust or oil stains. Then repair the coating surface, fill cracks and holes, and ensure that the surface is flat. After the coating surface dries, apply a layer of interface agent or sealing primer to enhance the adhesion between the waterproof coating and the coating surface.

[0040] S3: Apply the first waterproof coating 5 to the inner wall of the cleaned vertical groove 4, the outer wall of the post-pouring strip 2, and the outer wall of the side wall 1, and roughen the first waterproof coating 5 on the inner wall of the vertical groove 4.

[0041] Before applying paint, wet the brush and shake off excess water. Evenly coat the brush with paint, typically using a half-dip, half-brush method – keeping one half clean to ensure an even coating. Apply paint sequentially from top to bottom or from one side to the other, avoiding missed areas and paint buildup caused by repeated applications. Control the width and amount of paint in each stroke to ensure a consistent and smooth coating thickness. For corners and hard-to-reach areas, use a small brush or an edge brush. After each coat, check for evenness, bubbles, wrinkles, or missed areas. If problems are found, wait for the coating to dry slightly before gently smoothing it with a brush or recoating.

[0042] S4: After the waterproof coating has dried in the shade, the drying time depends on the type of coating and environmental conditions. Set up a template on the outside of the vertical groove 4, then fill the area between the vertical groove 4 and the template with waterproof mortar 6 and wait for the waterproof mortar 6 to cure. Fill the vertical groove 4 with waterproof mortar 6 so that the connection between the post-pouring strip 2 and the side wall 1 forms a flat plane.

[0043] S5: Apply a second waterproof coating 7 to the outside of the cured waterproof mortar 6 and allow it to air dry. Applying the second waterproof coating adds extra protection on top of the first waterproof layer, forming a thicker waterproof membrane and thus improving the waterproofing effect. Air drying prevents uneven drying caused by rapid surface drying, reducing cracks and bubbles resulting from excessive drying, and ensuring the integrity and uniformity of the waterproof layer. Air drying also helps the solvents or moisture in the coating evaporate evenly, improving the adhesion and durability of the coating film.

[0044] S6: Apply a layer of adhesive to the outside of the waterproof coating. Fix several hooks 9 to the adhesive on the outer wall of side wall 1 and the outer wall of post-cast strip 2 using structural adhesive, and wait for the hooks 9 to stick tightly. The adhesive, as an adhesive material, can improve the bonding strength between the waterproof layer, the structural adhesive, and the hooks, ensuring that they can be tightly bonded and not easily fall off. In addition, when installing multi-point anchor plates, the integrity of the waterproof layer is guaranteed: fixing the hooks helps to maintain the integrity of the waterproof layer and avoid damage caused by external forces, thereby ensuring long-term waterproof effect. Fixing the hooks can provide convenience for subsequent construction. When installing multi-point anchor plates, the hooks can be used as fixing points, increasing the convenience and safety of construction.

[0045] S7: Tie the iron wire 10 to the hook 9 and cut the multi-point anchor plate 11 to an appropriate width; by tying the iron wire 10 to the hook 9, the overall stability of the structure can be increased. The iron wire 10, as an auxiliary material, can firmly connect the hook and the anchor body 12 together, thereby improving the tensile and compressive strength of the structure. In addition, the iron wire can also work with cement mortar to improve the strength of the cement mortar.

[0046] S8: The hook 9 is connected to the anchor body 12 of the multi-point anchor plate 11 by wire; the multi-point anchor plate 11 is made of PE board; by connecting the hook to the multi-point anchor plate, the structural elements can be firmly fixed, preventing displacement or detachment caused by external forces, and ensuring the stability of the multi-point anchor plate when filling cement mortar. The multi-point anchoring technology can disperse stress and reduce dependence on a single point, thereby bearing tensile force evenly in the entire structure and improving the overall tensile strength; the wire connection method simplifies the construction process, making the anchoring work faster and more effective in building construction.

[0047] S9: A baffle 13 is installed on the side wall 1, and the baffle 13 is attached to the outer wall of the multi-point anchor plate 11;

[0048] S10: Fill the space between the adhesive layer 8 and the multi-point anchor plate 11 with cement mortar and vibrate it evenly. The thickness of the cement mortar is greater than the sum of the lengths of the hook 9 and the anchor body 12, so that the anchor body 12 of the multi-point anchor plate 11 is completely submerged in the cement mortar.

[0049] S11: After the cement mortar has fully cured, the waterproof layer construction is complete.

[0050] A waterstop 3 is provided between the post-cast strip 22 and the side wall 11. Both ends of the waterstop 3 are inclined, and one end of the inclined surface of the waterstop 3 faces the first waterproof coating 5.

[0051] The first waterproof coating 5 and the second waterproof coating 7 are applied in perpendicular directions, and the width of the first waterproof coating 5 on the side wall 1 is greater than 50cm.

[0052] The baffle 13 includes side plates on both sides and a crossbar in the middle. The side plates are attached to the two side walls of the multi-point anchor plate 11. Several crossbars are provided between the side plates. One side of the crossbar is attached to the outer wall of the multi-point anchor plate 11. The baffle 13 is used for support when cement mortar is filled.

[0053] There are several hooks 9, and these hooks 9 are arranged at equal intervals in the longitudinal and transverse directions on the adhesive layer 8.

[0054] In S4, during the filling of waterproof mortar 6, a flat vibrator is used to vibrate the waterproof mortar 6 evenly to avoid voids.

[0055] This invention involves creating a vertical groove 4 at the connection joint between the post-cast strip and the outer side wall. The vertical groove 4 makes the gap between the post-cast strip and the side wall more regular, facilitating the application of the waterproof coating and ensuring its quality. The inner wall of the vertical groove 4, the outer wall of the post-cast strip, and the outer wall of the side wall are cleaned. A first waterproof coating 5 is then applied to these surfaces. The first waterproof coating 5 on the inner wall of the vertical groove 4 is then roughened, creating a rough, uneven surface that helps improve the adhesion between the waterproof mortar 6 and the waterproof layer. After the waterproof coating dries, a template is placed on the outer side of the vertical groove 4. The area between the vertical groove 4 and the template is then filled with waterproof mortar 6, and the mortar 6 is allowed to cure. Finally, the vertical groove 4 is filled with the waterproof mortar 6 to achieve a smooth surface. A smooth plane is formed at the connection between the post-cast strip and the side wall. A second waterproof coating 7 is applied to the outside of the cured waterproof mortar 6 and allowed to air dry. A layer of adhesive is applied to the outside of the second waterproof coating 7. Several hooks 9 are fixed to the adhesive on the outer wall of the side wall and the outer wall of the post-cast strip using structural adhesive and allowed to adhere tightly. Iron wires 10 are tied to the hooks 9 and multi-point anchor plates 11 of appropriate width are cut. The hooks 9 are connected to the anchor bodies 12 of the multi-point anchor plates 11 using iron wires. A baffle 13 is installed on the side wall and is attached to the outer wall of the multi-point anchor plates 11. Cement mortar is filled between the adhesive layer 8 and the multi-point anchor plates 11 and vibrated evenly so that the anchor bodies 12 of the multi-point anchor plates 11 are completely submerged in the cement mortar. After the cement mortar has completely cured, the waterproof layer construction is completed.

[0056] This invention, through the setting of hooks 9, wires 10 and multi-point anchor plates 11, and the filling of cement mortar on the inner side of the multi-point anchor plates 11, can protect the waterproof layer on the outside of the connection joint between the post-cast strip and the side wall. It can achieve waterproof construction of the post-cast strip of the side wall without drilling holes in the post-cast strip and the side wall, ensuring the integrity and consistency of the post-cast strip structure of the side wall and increasing the service life of the waterproof layer.

[0057] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A method for waterproofing construction of post-cast strips in side walls, characterized in that: Includes the following steps: S1: A vertical groove is made at the connection joint between the post-cast strip and the outer side wall; S2: Clean the inner wall of the vertical trench, the outer wall of the post-cast strip, and the outer wall of the side wall; S3: Apply the first waterproof coating to the cleaned inner wall of the vertical trench, the outer wall of the post-pouring strip, and the outer wall of the side wall, and roughen the first waterproof coating on the inner wall of the vertical trench. S4: After the waterproof coating has dried in the shade, set up a template on the outside of the vertical groove, then fill the area between the vertical groove and the template with waterproof mortar, and wait for the waterproof mortar to cure. S5: Apply a second waterproof coating to the outside of the cured waterproof mortar and wait for the second waterproof coating to dry in the shade; S6: Apply a layer of adhesive to the outside of the waterproof coating, and fix several hooks to the adhesive on the outer wall of the side wall and the outer wall of the post-cast strip with structural adhesive, and wait for the hooks to stick tightly. S7: Tie the wire to the hook and cut a multi-point anchor plate of appropriate width; S8: Connect the hook to the anchor body of the multi-point anchor plate using iron wire; S9: Install a baffle on the side wall, and the baffle is attached to the outer wall of the multi-point anchor plate; S10: Fill the space between the adhesive backing layer and the multi-point anchor plate with cement mortar and vibrate it evenly so that the anchor body of the multi-point anchor plate is completely submerged in the cement mortar. S11: After the cement mortar has fully cured, the waterproof layer construction is complete; The vertical groove has a V-shaped cross-section and runs from top to bottom through the connection joint between the post-cast strip and the side wall. The baffle includes side plates on both sides and a horizontal bar in the middle. The side plates are attached to the two side walls of the multi-point anchor plate. Several horizontal bars are provided between the side plates. One side of the horizontal bar is attached to the outer wall of the multi-point anchor plate. The baffle is used for support when the cement mortar is filled.

2. The method for waterproofing construction of post-cast strips in side walls according to claim 1, characterized in that: A waterstop plate is provided between the post-cast strip and the side wall. The two ends of the waterstop plate are inclined, and one end of the inclined surface of the waterstop plate faces the side of the first waterproof coating.

3. The method for waterproofing construction of post-cast strips in side walls according to claim 1, characterized in that: The first waterproof coating and the second waterproof coating are applied in opposite directions, and the width of the first waterproof coating on the side wall is greater than 50cm.

4. The method for waterproofing construction of post-cast strips in side walls according to claim 3, characterized in that: Before applying the first waterproof layer, clean the inner wall of the vertical groove, the outer wall of the post-pouring strip, and the outer wall of the side wall to ensure that there is no dust or oil. Then repair the coating surface, fill cracks and holes, and ensure that the surface is smooth. After the coating surface dries, apply a layer of interface agent or sealing primer to enhance the adhesion between the waterproof coating and the coating surface.

5. The method for waterproofing construction of post-cast strips in side walls according to claim 1, characterized in that: The thickness of the cement mortar is greater than the sum of the lengths of the hook and the anchor body.

6. The method for waterproofing construction of post-cast strips in side walls according to claim 1, characterized in that: There are several hooks, and the hooks are arranged at equal intervals in the longitudinal and transverse directions on the adhesive layer.

7. The method for waterproofing construction of post-cast strips in side walls according to claim 1, characterized in that... In S4, during the filling of waterproof mortar, a flat vibrator is used to vibrate the waterproof mortar evenly to avoid voids.

8. The method for waterproofing construction of post-cast strips in side walls according to claim 1, characterized in that: The multi-point anchor plate is made of PE board.

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