Concrete micro crack reinforcing construction method

A construction method and micro-crack technology, applied in building maintenance, construction, building construction, etc., can solve the problems of slow grooving construction, shorten construction time, easy aging, etc., achieve good anti-aging performance, slow down alkali aggregates React, improve the effect of anti-weathering

Inactive Publication Date: 2017-07-04
CHANGSHA CO MA SEAL CONSTR MATERIALS CO LTD
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Problems solved by technology

[0003] Epoxy mortar is traditionally used for chiseling and caulking. The construction speed of chiseling is slow and the cost is high. The preparation of epoxy mortar is relatively complicated and the cost is also high. Longer, at least 3 to 7 days) compared with short construction time (grouting can be done in a few hours after caulking)
However, epoxy mortar also has the problem of poor caulking effect on wet surfaces. Therefore, in the construction of water seepage crack irrigation, some construction units are gradually abandoning the way of epoxy mortar caulking and using cement mortar or clean grout caulking. Construction time, mixed with accelerator to adjust curing time
In the grouting construction, accord

Method used

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Embodiment Construction

[0010] Below in conjunction with the examples, the present invention is further described, the following examples are illustrative, not limiting, and the protection scope of the present invention cannot be limited by the following examples.

[0011] A concrete micro-crack reinforcement construction method, comprising the following steps:

[0012] (1) The crack width is less than 0.3mm: the cracks below 0.3mm can be automatically repaired by using the characteristics of the permeable crystalline waterproof material. When the base surface is cleaned in place, spray the permeable crystalline waterproof material CM-DPS directly. Realize the repair of cracks below 0.3mm;

[0013] (2) If the width of the crack is within 0.3-0.5mm: expand the crack, and the width of the crack is twice the width of the crack itself; Supplementary alkali treatment, CaOH diluted at a ratio of three thousandths 2 After filling the alkali with water, immediately use CM-DPS to fill the joints; repeat the...

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Abstract

The invention discloses a concrete micro crack reinforcing construction method. The construction method includes the following steps: (1) repairing cracks having the width of within 0.3 mm; (2) repairing cracks having the width of 0.3-0.5 mm; and (3) repairing through cracks. Moisture in concrete can be given outward completely, and in this way, the durability of a concrete structure can be greatly improved. It is worth mentioning that CM-DPS has excellent nano reinforcing bar performance, can provide anti-deformation and anti-tensioning performance of a concrete surface, and has absolute technological leading edge. The capillary crystalline protective layer can play a role in structure reinforcement, can play a role in connection such as adhesion, is simple in construction, and is reasonable in cost; and in addition, a reinforcing material has excellent anti-aging performance, can avoid decrease in cohesive property, anti-shearing ability and waterproof performance due to high temperature, rolling, lower temperature and frost.

Description

technical field [0001] The invention relates to a concrete micro-crack reinforcement construction method. Background technique [0002] Concrete cracks are one of the more common and common diseases of concrete buildings, especially water seepage concrete cracks, which may cause structural failure and intensified leakage, and constitute a direct hazard to the safety of the structure. Concrete water seepage cracks are often accompanied by a large amount of calcium precipitation and more impurities on the joint surface. The treatment of such cracks should not only meet the anti-seepage requirements in key parts, but also require restoration of part or even all of the structural strength. [0003] Epoxy mortar is traditionally used for chiseling and caulking. The construction speed of chiseling is slow and the cost is high. The preparation of epoxy mortar is relatively complicated and the cost is also high. Longer, at least 3 to 7 days) compared with short construction time (g...

Claims

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/0203
Inventor 邹苏华
Owner CHANGSHA CO MA SEAL CONSTR MATERIALS CO LTD
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