JPH07158244A - Method of laying urethane floor having protrusion - Google Patents

Abstract

PURPOSE:To provide an urethane floor which can ensure a water-tightness for a base surfaced made of concrete, steel sheet, or the like, and which can be laid in a short period, and which has a sufficiently safe anti-slipping function. CONSTITUTION:Fast-curable polyurethane 3 is uniformly applied over the base surface 1 subjected to a surface treatment process 1 so as to form a polyurethane 3 layer over which a form plate 4 having uniformly distributed drilled holes 4A is laid with a parallel gap (h) being defined therebetween. This forme plate 4 is spray-coated thereover with fast-curable polyurethane.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a urethane floor having protrusions.

[0002]

2. Description of the Related Art As a means for imparting waterproofness to concrete, iron plate floors, etc., it is known to uniformly coat a fast-curing polyurethane on the surface of these foundations. This quick-curing polyurethane coating has the advantage that the construction period is short and that it is extremely effective in imparting waterproofness to the underlying surface,
On the other hand, there is a problem that if the surface gets wet, it is very slippery and dangerous, and as a method to solve such a problem, it is proposed to emboss the polyurethane film surface provided on the concrete base surface to prevent slipping. (For example, JP-A-63-107775).

[0003]

[Problems of the prior art] However, in an environment where a large amount of water is used, such as in a food factory, it is difficult to obtain a sufficient anti-slip function with unevenness such as embossing, and there is a drawback that there is a problem in safety. It was On the other hand, as a means for preventing such slippage, it is conceivable to attach a floor material on which projections are uniformly dispersed in advance to a concrete or iron plate base surface. Since the gap between the abutting portions can be made into a grid pattern, there is a drawback that it hardly functions on the waterproof surface. Moreover, peeling easily occurred and there was a defect in durability. Furthermore, it is possible to coat the underlying surface with slow-curing polyurethane and sprinkle sand particles during curing to prevent slips, but since slow-curing polyurethane is used, the construction period is prolonged and the construction period cannot be shortened. There was a flaw.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, the present invention has a urethane floor construction method that ensures the waterproofness of the concrete base surface, has a sufficiently safe anti-slip function, and can be constructed in a short construction period. It is made for the purpose of providing.

[0005]

That is, according to the method of constructing a urethane floor having protrusions according to the present invention, the surface 1 is subjected to the base treatment 2
The fast-curing polyurethane 3 is evenly applied to the ground surface of the substrate, and then the template 4 having the perforations 4A is arranged in a uniform dispersion on the applied fast-curing polyurethane 3 layer at parallel intervals h. It is also characterized in that a rapid curing polyurethane is similarly spray-painted on the plate 4.

[0006]

In the present invention, as the waterproof coating film applied on the floor surface, the quick-setting polyurethane is used for all, so the construction period is basically short. Then, after the quick-setting polyurethane is uniformly applied to the lower ground of the concrete, iron plate or stainless steel plate that has been subjected to the base treatment, the templates having the perforations in a uniformly dispersed state are arranged at a parallel interval from the floor surface, and Similarly, since the rapid-curing polyurethane is spray-painted by spraying, the rapid-curing polyurethane is sprayed only on the perforated position, and this portion becomes convex. Further, since the rapidly curable polyurethane that is sprayed cures quickly, the convex shape is maintained as it is, and when it cures, it becomes a non-slip projection. In addition, since both use fast-curing polyurethane, the mutual adhesion is good and the stable anti-slip function is maintained for a long period of time.

[0007]

Embodiments of the present invention will be described below. 1 to 3 are sectional views showing an embodiment of the present invention.

As shown in FIG. 1, the surface 1 of the concrete floor, which was washed with a detergent to remove oil and then completely dried, was uniformly coated with the following primer 2 for quick-curing polyurethane by a brush and a roller, and then The following rapid-curing polyurethane 3 was uniformly applied on the surface by spraying to a thickness of 2 to 3 mm.

Primer main agent: polyether polyol and filler (Sumitomo Bayer Urethane Co., polyol # 0759) Curing agent: polymethylene polyphenyl polyisocyanate (Sumitomo Bayer Urethane Sumijour 44V20) Fast curable polyurethane main agent: Polyether polyol Curing agent: Isocyanate prepolymer (Mitsui Toatsu Chemical Co., Ltd. rim spray F1000)

Then, as shown in FIG. 2, round holes 4A ... 4 having a diameter of 25 mm and a pitch of 50 mm are formed on the layer of the rapid curing polyurethane 3.
A 1 m square iron plate 4 having A was placed at a parallel interval h of 10 mm via a spacer 5, and the same fast-curing polyurethane as described above was immediately applied by spray 7 from directly above the iron plate 4.
At this time, projections 6 ... 6 made of fast-curing polyurethane having a thickness of 1 to 3 mm are formed on the layer of the fast-curing polyurethane 3 on the underlying surface after passing through the round holes 4A. A large number of projections 6 having a smooth curved surface in which the base portion 6A is enlarged and shown in a skirt shape are formed.

When a release agent was applied to the iron plate 4 of the above-mentioned embodiment and the same treatment was carried out, the post-treatment of the iron plate 4 was greatly simplified.

[0012]

As described above, according to the method of the present invention, it is possible to form a polyurethane film having protrusions uniformly integrated on the base surface, including the rising surface, and to realize a complete waterproof function. Even if the floor is made of polyurethane, which is naturally slippery, the projections have a non-slip effect, making it safe even in an environment where a large amount of water is used. Since the whole is constructed by using the fast-curing polyurethane, it has an effect that the construction period can be extremely shortened.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 ... Surface of concrete floor 2 ... Primer 3 ... Fast-curing polyurethane 4 ... Iron plate 4A ... Round hole 5 ... Spacer 6 ... Projection 6A ... Basic part of projection

Claims (1)

[Claims] 1. A template 4 having perforations 4A in a uniformly dispersed state on a surface of a surface 1 whose surface 1 has been subjected to a surface treatment 2 and which is then uniformly coated with a rapid-curing polyurethane 3. A method for constructing a urethane floor having projections, which is characterized in that parallel spacing h is provided and spray coating is performed on the template 4 in the same manner as above.