Grouting method of penetrability concrete cracks

A concrete and penetrating technology, applied in water conservancy projects, sea area projects, construction, etc., can solve the problems of harming human health, increasing project costs, and high prices, and achieve the effects of reducing environmental pollution, reducing project costs, and improving durability

Inactive Publication Date: 2013-06-26
HUBEI GEZHOUBA TESTING
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Problems solved by technology

[0004] Furthermore, as far as chemical grouting technology itself is concerned, there are still shortcomings and deficiencies in its inherent characteristics for the time being, such as the price of slurry materials is higher than that of cement slurry materials, strict labor health protection requirements for operators during construction, and on-site environmental protection requirements. High, which not only increases the project cost, but also increases the source of harm to human health

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  • Grouting method of penetrability concrete cracks
  • Grouting method of penetrability concrete cracks
  • Grouting method of penetrability concrete cracks

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Embodiment Construction

[0027] A grouting method for penetrating concrete cracks, comprising the following steps:

[0028] Step 1: Check for cracks according to DL / T5251-2010 "Technical Regulations for Defect Detection and Evaluation of Hydraulic Concrete Buildings". It generally includes the following contents: location, quantity, direction, length, width, and understanding of the changes of cracks. Inspection tools can be used by the naked eye, meter ruler, reading magnifying glass, feeler gauge inspection, etc. Among them, seam depth inspection: one of the methods such as chiseling method, drilling pressure water method, ultrasonic detection method and in-hole TV method can be used, or a combination of methods can be used.

[0029] Step 2: According to DL / T5251-2010 "Technical Regulations for Detection and Evaluation of Defects in Hydraulic Concrete Buildings", evaluate and classify cracks 5. The dead joints with a joint width δ≥0.4mm and the penetrating cracks in the compression zone are poured...

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Abstract

The invention discloses a grouting method of penetrability concrete cracks. The grouting method of the penetrability concrete cracks comprises the steps of drilling holes, burying pipes, sealing cracks and grouting. The drilled holes comprise inclined holes and roulettes. The inclined holes are preferably distributed in the same side or two sides of the cracks. The roulettes are distributed along the cracks to the bottom portions of the cracks. The pipes are buried by gelatinization materials. The cracks are sealed through the chisel groove method and the surface crack sealing method. With regard to stable and unexpanded penetrability concrete cracks (dead cracks) or compressive zone penetrability cracks, the grouting method of the penetrability concrete cracks adopts cement grout to conduct a grouting process, not only is the grouting method environment-friendly, economical and convenient to construct, but also quality effects meet engineering requirements. Besides, durability of materials is good, and strength of the materials is high.

Description

technical field [0001] The invention discloses a grouting method for penetrating concrete cracks, which is suitable for the grouting treatment of penetrating concrete cracks (dead joints) which are no longer developed or penetrating cracks in compression zones. Background technique [0002] Hydraulic concrete often has cracks due to poor design considerations, improper construction methods or lax process operations, poor operation management, and various natural forces during use. Due to the existence of cracks, the light ones affect the appearance and life of the building, and the severe ones destroy the integrity of the building and endanger the safe operation of the building. At present, the basic method for treating cracks in various projects is grouting. The grouting material is usually chemical grout, because chemical grout is a true solution, does not contain solid particles, has good groutability, and chemical grouting does not need to destroy the original foundatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/16E02D15/00
Inventor 李焰
Owner HUBEI GEZHOUBA TESTING
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