JP2603420B2 - Reinforced waterproofing method for concrete - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced waterproofing method for concrete on slabs and wall surfaces such as rooftops, flat roofs, and verandas.

[0002]

2. Description of the Related Art In a conventional concrete waterproofing method, as shown in FIG. 3, a waterproof layer 5 is formed on a concrete layer 3 'as a base by asphalt, urethane or sheet or the like, and then the waterproof layer 5 is formed thereon. It is very common to lay a holding concrete layer 6 to prevent floating, and further provide a finishing layer 7 such as mortar on the holding concrete layer 6 to smoothly finish the surface of the concrete layer 6. .

[0003]

However, in the waterproofing method in the above-mentioned conventional example, the pressing concrete layer 6 for stabilizing the waterproof layer 5 and the surface of the pressing concrete layer 6 in addition to the waterproof layer 5 are used. It is necessary to provide a finishing layer 7 for smoothing, not only is it troublesome, but also each of the layers cannot be sequentially laminated unless solidified and stable, and the working time (construction period) becomes longer. All in all, there was the disadvantage that the cost was extremely high. The present invention addresses these shortcomings and provides a reinforced waterproofing method that is fast and inexpensive.

[0004]

A welding wire mesh laid along the upper end streaks is buried in a waterproof concrete layer to which a cement waterproofing agent is added and mixed, and a water-repellent reinforced waterproof layer is provided on the waterproof concrete layer. Reinforced waterproofing method for concrete.

[0005]

The cement waterproofing agent added to the waterproof concrete layer enhances the waterproofness and strengthens the strength of the concrete. In addition, the cracks generated during the process of solidifying the waterproof concrete layer by the welding wire mesh are formed as minute cracks without concentrating. Disperse and prevent cracks that lead from the surface of the waterproof concrete layer to the deep part,
Increases waterproofing.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. When a slab A such as a rooftop or a veranda is constructed, firstly, the upper slab 1 already laid at the slab installation location is placed along and along the upper end bar 1. Wire diameter 3.2mm, mesh 100
Then, a waterproof concrete layer 3 to which a cement waterproofing agent is added and mixed is cast, and the upper reinforcing bar 1 and the welded wire mesh 2 are buried. For example, cement 3
A mixture of 00 kg, 4.5 (l) of watertight and 4.5 (l) of water was kneaded at a ratio of 175.5 (l), and the poured concrete layer 3 was leveled while holding down its surface and dried sufficiently. When the water-repellent reinforced waterproofing agent layer 4 has penetrated into the waterproofing concrete layer 3 at the time of hardening and stabilization, about 0.5 square meters per square meter.
Complete by spraying or applying ~ 1.0 (l).

In the slab A thus obtained, the concrete used as the main material is improved in strength by the cement waterproofing agent, and cracks generated when the waterproofing concrete layer 3 hardens are dispersed by the welding wire mesh 2. Then, the hair cracks become invisible to the extent that they cannot be seen, and the prominent cracks from the surface layer to the deep layer are suppressed. At the same time, the hair cracks are scattered in the micro hair cracks generated when the waterproof concrete layer 3 hardens. The water-repellent reinforced waterproofing agent layer 4 (resin component) penetrates and becomes clogged to prevent the infiltration of water, and the characteristics of the water-repelling-enhancing waterproofing agent layer 4 further eliminates water, thereby further assuredly. A waterproof effect is obtained.

[0008]

As described above, according to the present invention, cracks generated when the waterproof concrete layer hardens due to the embedding of the welding wire mesh together with the upper end streaks in the waterproof concrete layer to which the cement waterproofing agent has been added and mixed are described above. In addition to dispersing as a fine hair crack together with the action of the above, after the waterproof concrete layer is hardened, a water-repellent reinforcing waterproofing agent is applied. The resin component of the water-repellent reinforcing waterproofing agent invades and clogs, thereby preventing the intrusion of water and repelling water, thereby remarkably improving the waterproof performance. In addition, the present invention disperses cracks in the waterproof concrete layer into fine hair cracks, so that necessary and sufficient waterproofness can be obtained only by providing a water-repellent reinforcing waterproofing agent layer as a post-treatment. In addition, a plurality of laminating processes are not required, the work is simple, the construction period is remarkably shortened, and the labor cost is reduced, and the overall cost is significantly reduced.

[Brief description of the drawings]

FIG. 1 is a cutaway perspective view showing an embodiment of the present invention.

FIG. 2 is a schematic top view of the above.

FIG. 3 is a schematic longitudinal sectional view showing a conventional waterproofing method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top bar 2 Welded wire mesh 3 Waterproof concrete layer 4 Water-repellent reinforced waterproofing agent layer

Claims (1)

(57) [Claims] 1. A welding wire mesh laid along an upper end bar,
A reinforced waterproofing method for concrete, characterized in that after being embedded in a waterproofed concrete layer to which a cement waterproofing agent is added and mixed, a water-repellent reinforcing waterproofing agent is applied to the outer surface of the waterproofed concrete layer and penetrated into the concrete.