Concrete gap repairing and anti-seepage treatment method

Abstract

The invention relates to a concrete gap repairing and anti-seepage treatment method. The method comprises the following steps of (1) forming a groove in a concrete structure by taking a gap of the concrete structure as a center; (2) embedding a grouting nozzle in the groove, and keeping a gap between the grouting nozzle and the gap of the concrete structure; (3) fixing the grouting nozzle in the groove by adopting a plugging material, and plugging and compacting the rest part of the groove; (4) then, grouting through a grouting nozzle till the interior of the gap reaches a saturated grouting state; (5) dismounting the grouting nozzle, and the completely plugging and filling the groove with a plugging material; and (6) coating the cured and blocked groove and the periphery of the cured and blocked groove with a waterproof layer, and then completing treatment. According to the method, true and false leakage cracks can be distinguished in advance, so that the grouting workload is reduced, the grouting efficiency and accuracy are improved, the grout leakage phenomenon in a traditional grouting process can be effectively solved, and meanwhile, concrete is prevented from secondary damage caused by drilling.

Description

technical field

[0001] The invention belongs to the technical field of building waterproofing, and relates to a concrete gap repair and anti-leakage treatment method. Background technique

[0002] In recent years, my country's urbanization process has been accelerating, and the scale of buildings has continued to increase. There are more and more underground concrete structure projects such as underground parking lots, shopping malls, and civil air defense projects. However, in the process of concrete structure construction, due to materials, design, and construction Various factors such as poor maintenance and insufficient maintenance lead to various cracks in the concrete structure. At the same time, the concrete cannot be poured continuously due to factors such as unstable concrete mixture, insufficient vibration, sudden failure of pouring equipment, and engineering construction needs. Interruption occurs. When the interruption time exceeds the initial setting time of concr...

Examples

Embodiment 1

[0073] See Figure 2 to Figure 4 Shown, a kind of concrete crack repair and anti-seepage processing method, this method comprises the following steps:

[0074] (1) Clean up: use tools such as spatulas, chisels to clean up the base surface of the concrete structure 1 in the area where the crack 31 (i.e. the gap in the concrete structure) is located, find out the leaking crack 31, and check the leaking situation of the crack 31 in detail, Determine and mark the grouting location;

[0075] (2) Grooving: use a cutting machine to grooving with the crack 31 as the center, and drill a "U"-shaped groove (large inside and small outside) with a width of 3 cm to 4 cm and a depth of 5 cm to 6 cm at the crack 31 ;

[0076] (3) Sealing the slots and burying the grouting nozzle 4: use micro-expansion quick-setting plugging material and water to mix into cement at a weight ratio of 1:0.3, and fix the grouting nozzle 4 at the preset crack 31 in the groove And seal and compact the rest of th...

Embodiment 2

[0081] See Figure 5 to Figure 7 Shown, a kind of concrete structure cold seam repair and anti-seepage treatment method, this method comprises the following steps:

[0082] (1) Cleaning: Clean up the base surface of the concrete structure 1 in the area where the structural cold joint 32 (that is, the gap in the concrete structure) is located with a spatula, chisel, etc., find out the leaking cold joint 32, and check the seepage of the cold joint 32 in detail. In case of leakage, determine and mark the grouting position;

[0083] (2) Grooving: With the cold seam 32 as the center, use a cutting machine to perform groove processing, and the cold seam 32 of the structure will be drilled into a "U"-shaped groove with a width of 3cm to 4cm and a depth of 5cm to 6cm (inner large foreign small);

[0084] (3) Sealing the slots and burying the grouting nozzle 4: use the micro-expansion quick-setting plugging material and water at a weight ratio of 1:0.3 to mix it into a cement shape, ...

technical field

[0001] The invention belongs to the technical field of building waterproofing, and relates to a concrete gap repair and anti-leakage treatment method. Background technique

[0002] In recent years, my country's urbanization process has been accelerating, and the scale of buildings has continued to increase. There are more and more underground concrete structure projects such as underground parking lots, shopping malls, and civil air defense projects. However, in the process of concrete structure construction, due to materials, design, and construction Various factors such as poor maintenance and insufficient maintenance lead to various cracks in the concrete structure. At the same time, the concrete cannot be poured continuously due to factors such as unstable concrete mixture, insufficient vibration, sudden failure of pouring equipment, and engineering construction needs. Interruption occurs. When the interruption time exceeds the initial setting time of concr...

Examples

Embodiment 1

[0073] See Figure 2 to Figure 4 Shown, a kind of concrete crack repair and anti-seepage processing method, this method comprises the following steps:

[0074] (1) Clean up: use tools such as spatulas, chisels to clean up the base surface of the concrete structure 1 in the area where the crack 31 (i.e. the gap in the concrete structure) is located, find out the leaking crack 31, and check the leaking situation of the crack 31 in detail, Determine and mark the grouting location;

[0075] (2) Grooving: use a cutting machine to grooving with the crack 31 as the center, and drill a "U"-shaped groove (large inside and small outside) with a width of 3 cm to 4 cm and a depth of 5 cm to 6 cm at the crack 31 ;

[0076] (3) Sealing the slots and burying the grouting nozzle 4: use micro-expansion quick-setting plugging material and water to mix into cement at a weight ratio of 1:0.3, and fix the grouting nozzle 4 at the preset crack 31 in the groove And seal and compact the rest of th...

Embodiment 2

[0081] See Figure 5 to Figure 7 Shown, a kind of concrete structure cold seam repair and anti-seepage treatment method, this method comprises the following steps:

[0082] (1) Cleaning: Clean up the base surface of the concrete structure 1 in the area where the structural cold joint 32 (that is, the gap in the concrete structure) is located with a spatula, chisel, etc., find out the leaking cold joint 32, and check the seepage of the cold joint 32 in detail. In case of leakage, determine and mark the grouting position;

[0083] (2) Grooving: With the cold seam 32 as the center, use a cutting machine to perform groove processing, and the cold seam 32 of the structure will be drilled into a "U"-shaped groove with a width of 3cm to 4cm and a depth of 5cm to 6cm (inner large foreign small);

[0084] (3) Sealing the slots and burying the grouting nozzle 4: use the micro-expansion quick-setting plugging material and water at a weight ratio of 1:0.3 to mix it into a cement shape, ...

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