阅读说明：本技术 一种外墙后浇带防水的施工方法 (Waterproof construction method for outer wall post-cast strip ) 是由 蔡万昌 赵温迪 林金平 刘帮 杨长 左洪卫 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种外墙后浇带防水的施工方法,首先在地下室的钢筋混凝土结构外墙施工时留设后浇带,并在后浇带的外侧预留延伸部,使延伸部从钢筋混凝土结构外墙的外侧面伸出,然后在钢筋混凝土结构外墙与后浇带的交接处置入止水钢板,浇筑后浇带时连同延伸部一起浇筑,随后进行外墙防渗漏施工。本发明的施工方法大大降低了地下室外墙施工缝处的渗漏风险；而且施工较为简便,节省人力物力,回填完成后不需要重新支设后浇带外墙模板,加快了施工速度,节省了施工成本。(The invention discloses a waterproof construction method of an outer wall post-cast strip, which comprises the steps of firstly reserving the post-cast strip when constructing an outer wall of a reinforced concrete structure of a basement, reserving an extension part on the outer side of the post-cast strip, enabling the extension part to extend out of the outer side surface of the outer wall of the reinforced concrete structure, then putting a water stop steel plate into the junction of the outer wall of the reinforced concrete structure and the post-cast strip, pouring the post-cast strip together with the extension part when pouring, and then performing outer wall anti-seepage construction. The construction method greatly reduces the leakage risk at the construction joint of the basement exterior wall; and the construction is comparatively simple and convenient, and manpower and material resources are saved, need not establish post-cast strip outer wall template again after backfilling is accomplished, accelerated construction speed, saved construction cost.)

1. A construction method for preventing water of an outer wall post-cast strip is characterized by comprising the following steps: firstly, a post-cast strip (9) is reserved during construction of a reinforced concrete structure outer wall (1) of a basement, an extension part (8) is reserved on the outer side of the post-cast strip (9) to prevent the deformation of an outer brick mold from influencing the thickness of the outer wall during backfilling, the extension part (8) extends out of the outer side surface of the reinforced concrete structure outer wall (1), then a water stop steel plate (7) is placed in the junction of the reinforced concrete structure outer wall (1) and the post-cast strip (9), the post-cast strip (9) is poured together with the extension part (8) during pouring, and outer wall anti-seepage construction is performed subsequently.

2. The waterproof construction method of an outer wall post-cast strip according to claim 1, characterized in that: the distance between the extension part (8) and the outer side surface of the reinforced concrete structure outer wall (1) is 100 mm.

3. The waterproof construction method of an outer wall post-cast strip according to claim 1, characterized in that: when the outer wall of the non-post-cast strip area is constructed for anti-seepage construction, after the structure is formed, two waterproof rolls are laid, wherein the first roll is a double-sided self-adhesive high-molecular waterproof roll (2), and the second roll is a single-sided self-adhesive high-molecular waterproof roll (3); and after the two waterproof rolls are paved, constructing a cement mortar brick protective layer (4), and finally backfilling backfill soil (5).

4. The waterproof construction method of an outer wall post-cast strip according to claim 1, characterized in that: when the anti-leakage construction of the outer wall of the post-construction pouring zone area is carried out, firstly, the construction of a brick protective layer (4) is carried out, then, the outer side is plastered (6), after the plastering (6) is finished, two waterproof coiled materials are paved and pasted, the first waterproof coiled material is a double-sided self-adhesive high-molecular waterproof coiled material (2), the second waterproof coiled material is a single-sided self-adhesive high-molecular waterproof coiled material (3), the waterproof coiled material is continuously paved and pasted with the post-construction pouring zone area in the non-post-construction pouring zone area, after the paving of the coiled material is finished, the construction of a cement mortar brick protective layer (4) is carried out, and finally.

5. The construction method for waterproofing an outer wall post-cast strip according to claim 3 or 4, characterized in that: double-sided self-adhesive high-molecular waterproof roll (2) and single-sided self-adhesive high-molecular waterproof roll (3) are 1.5mm thick, and cement mortar brick protective layer (4) is 120 thick 1: 3, a cement mortar brick protective layer.

Technical Field

The invention relates to a waterproof construction method for an outer wall post-cast strip, and belongs to the technical field of building construction.

Background

With the continuous development of the building industry, in order to prevent the harmful cracks possibly generated by the uneven self shrinkage or the uneven settlement of the cast-in-place reinforced concrete structure, post-cast strips are reserved at corresponding positions of a foundation slab, a wall and a beam according to the design or construction requirements. However, since a construction joint is generated after the post-cast strip is arranged, there is a certain hidden danger of water seepage caused by the post-cast strip, and therefore, the problems need to be solved by improving the anti-seepage measures when the post-cast strip is arranged on the existing foundation.

Disclosure of Invention

The invention aims to provide a waterproof construction method for an outer wall post-cast strip, which has the advantages of good anti-seepage performance, simple and convenient construction, construction cost saving and construction speed acceleration.

In order to achieve the purpose, the invention provides the following technical scheme: a waterproof construction method for an outer wall post-cast strip comprises the steps of firstly reserving the post-cast strip when a reinforced concrete structure outer wall of a basement is constructed, reserving an extension part on the outer side of the post-cast strip, enabling the extension part to extend out of the outer side surface of the reinforced concrete structure outer wall, then placing a water-stop steel plate at the junction of the reinforced concrete structure outer wall and the post-cast strip, pouring the post-cast strip together with the extension part when the post-cast strip is poured, and then performing outer wall anti-seepage construction.

In the method, the distance between the extension part and the outer side surface of the outer wall of the reinforced concrete structure is 100 mm.

In the method, when the outer wall anti-seepage construction of the non-post-cast strip area is carried out, after the structure is formed, two waterproof rolls are laid, wherein the first roll is a double-sided self-adhesive high-molecular waterproof roll, and the second roll is a single-sided self-adhesive high-molecular waterproof roll; and after the two waterproof rolls are paved, constructing a cement mortar brick protective layer, and finally backfilling backfill.

According to the method, when the anti-leakage construction of the outer wall of the post-construction pouring belt area is carried out, a brick protective layer is firstly constructed, then the outer side is plastered, after the plastering is finished, two waterproof coiled materials are paved, the first waterproof coiled material is a double-sided self-adhesive high-polymer waterproof coiled material, the second waterproof coiled material is a single-sided self-adhesive high-polymer waterproof coiled material, the waterproof coiled materials are continuously paved and adhered to the post-pouring belt area in the non-post-pouring belt area, after the coiled materials are paved, a cement mortar brick protective layer is constructed, and finally backfill is carried out.

In the method, the double-sided self-adhesive high-molecular waterproof roll and the single-sided self-adhesive high-molecular waterproof roll are 1.5mm thick, and the cement mortar brick protective layer is 120 mm thick 1: 3, a cement mortar brick protective layer.

Compared with the prior art, the invention has the following beneficial effects:

1. the construction method greatly reduces the leakage risk at the construction joint of the basement exterior wall;

2. the construction is comparatively simple and convenient, and manpower and material resources are saved, need not establish post-cast strip outer wall template again after backfilling is accomplished, has accelerated construction speed, has saved construction cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a sectional view B-B of fig. 1.

Description of reference numerals: 1-reinforced concrete structure wall; 2-double-sided self-adhesive high-molecular waterproof coiled material; 3-single-side self-adhesive high-molecular waterproof coiled material; 4-a cement mortar brick protective layer; 5-backfilling; 6-plastering layer; 7-water stop steel plate; 8-an extension; 9-post-cast strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a waterproof construction method of an outer wall post-cast strip includes the steps of firstly reserving a post-cast strip 9 when a reinforced concrete structure outer wall 1 of a basement is constructed, reserving an extension portion 8 on the outer side of the post-cast strip 9, enabling the extension portion 8 to extend out of the outer side surface of the reinforced concrete structure outer wall 1 by 100mm, then entering a water stop steel plate 7 at the junction of the reinforced concrete structure outer wall 1 and the post-cast strip 9, pouring the post-cast strip 9 together with the extension portion 8, and then performing outer wall anti-seepage construction.

Referring to fig. 2, during the anti-seepage construction of the outer wall of the non-post-cast strip area, after the structure is formed, two waterproof rolls are laid, wherein the first roll is a double-sided self-adhesive high polymer waterproof roll 2, and the second roll is a single-sided self-adhesive high polymer waterproof roll 3; and after the two waterproof rolls are paved, constructing a cement mortar brick protective layer 4, and finally backfilling backfill 5.

Referring to fig. 3, when the anti-seepage construction of the outer wall of the post-construction pouring zone is carried out, firstly, a brick protective layer 4 is constructed, then, the outer side is plastered 6, after the plastering 6 is finished, two waterproof rolls are paved, the first waterproof roll is a double-sided self-adhesive high polymer waterproof roll 2, the second waterproof roll is a single-sided self-adhesive high polymer waterproof roll 3, the waterproof rolls are paved continuously with the post-construction pouring zone in the non-post-construction pouring zone, after the paving of the rolls is finished, a cement mortar brick protective layer 4 is constructed, and finally, backfill 5 is backfilled.

Above-mentioned two-sided self-adhesion polymer waterproofing membrane 2 and single-sided self-adhesion polymer waterproofing membrane 3 are 1.5mm thick, and cement mortar brick protective layer 4 is 120 thick 1: 3, a cement mortar brick protective layer.

In conclusion, the construction method greatly reduces the leakage risk at the construction joint of the basement exterior wall; and the construction is comparatively simple and convenient, and manpower and material resources are saved, need not establish post-cast strip outer wall template again after backfilling is accomplished, accelerated construction speed, saved construction cost.