JPS5983969A - Antiabrasive floor material composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cement-based abrasion-resistant floor finishing composition having excellent abrasion resistance, dust resistance and weather resistance, and a method for producing the same.

Generally, cement, concrete, or mortar are often used as flooring materials for buildings, but the above-mentioned materials are used especially for roads and floor surfaces where extremely heavy objects are transported in and out, and where vehicles and pedestrians frequently pass. When applying ordinary concrete, it can cause surface cracking, damage, aggregate exposure, and dust generation in a relatively short period of time, improving the safety and hygiene of the building.
Two serious deficiencies have been pointed out. Examples include warehouses and factories carrying heavy goods, roads with heavy traffic, station platforms, aircraft runways, schools, floors of public buildings such as buildings, and other general floors that are subject to frequent and high loads. This problem applies to surfaces, etc.

To solve these problems, there is a method of using so-called high-strength concrete that uses a special bone structure with high density and high strength, but it is extremely expensive, so for general purposes it is not recommended to use concrete that has a few millimeters or more on the construction surface. The method used is to apply a few centimeters of special wear-resistant flooring material.

The purpose of the present invention is to provide a method for manufacturing a wear-resistant flooring material that is significantly improved in impact resistance, abrasion resistance, dust resistance, and weather resistance compared to conventional products, and is inexpensive and easy to install. be.

As such wear-resistant flooring materials, compositions are generally used that are made by adding appropriate modifiers, fillers, coloring materials, etc. to the main phase consisting of cement and special bone phase. The selection of the aggregate is the most important and greatly influences the performance of the flooring material.

The most commonly used aggregates for conventional wear-resistant flooring materials include iron and steel pieces, iron powder, mineral grains, silica-based hard aggregates, and silicon carbide, which can be roughly divided into metal-based materials and mineral-based materials that mainly contain silica. I can do it. Among these, those that use ferrous metal as aggregate have high mechanical strength and can generally withstand wear under a load of 11"h, but have the disadvantage of being chemically unstable. In particular, those that use ferrous metal as aggregate have the disadvantage of being chemically unstable. The oxidation reaction is accelerated and easily produces iron oxide, causing so-called rust, which impairs the appearance and causes problems in durability.On the other hand, natural mineral particles and synthetic aggregates based on minerals generally have low density and low mechanical strength. Because of its low value, it is unsuitable as an aggregate for IfX+Kaichikawa bed materials.

The present inventors investigated how to improve the various drawbacks seen in conventional abrasive floor slabs, and as a result, by using an alloy of phosphorus and iron as the bone material, chemical carbon It has been found that the wear-resistant tL bed 4', which does not easily change in quality and can be used for high mechanical strength lJ purposes.In general, phosphor iron known as ), lophospor and (-) is a free-cutting steel. [Steelmaking Industry] 7-11, Publication No. 1. The present invention is not limited to phosphorus-iron alloys produced by other methods.

The suitable composition of the iron phosphorus that can be used as the bone phase of the present invention is one having a phosphorus content of 20 to 28% by weight, as defined by the symbol F)'1 in the Toppon Kogyo Standards.

In the present invention, a composition comprising iron phosphorus as bone phase and cement as binder is an essential requirement, but quality improvers, fillers, colorants, etc. are added and mixed as appropriate to this main composition. can be done. In this way, the amount of iron phosphorous contained in the finished composition that can be crushed varies somewhat depending on the grain shape and size of the fabric, but it is appropriate to be in the range of 50 to 80% by weight1. In the range lower than 50 ``10, the effect of lowering both IIIi abrasion resistance and strength is insufficient, and in the range higher than 80%, Cj:
Inevitably, the bonding force of the bonding agent, i', ii: decreases, resulting in a low I of bonding force with J, Q 41 and the bone 4',) J '4') Since f is exposed on the surface, appearance (b) and performance (a) are impaired.

The aggregate used for 1n11 sanding is general cement 1-
Unlike J Conocrete, the surface of the basic concrete slab is often coated with a thin width of several millimeters to several centimeters, so there is no need for particles that are too large to exceed the width of the coated floor. From this point of view, it is appropriate that the maximum size of the iron phosphorous particles used for this purpose be within the range of 3 times to 1/2 the width of the coated floor. There is no particular restriction on the particle size distribution as a bone phase, but for general wear resistance [・When used for the first time, the particle size distribution should be adjusted so that the porosity is as low as possible, excluding fine particles of 0.15% or less. is desirable in terms of strength and wear resistance (4:L). In addition, if necessary, conventional mineral bones etc. can also be used together.
I can do it.

Cement 1- which can be used in the present composition includes various types of Lyl-
Random cement, alumina cement, high grade cement, flier, ten cement, etc., all of which are used in ordinary wood, building materials, etc.
Iron phosphorus is a chemically extremely stable substance, so it will not be altered by oxidation or dissolution due to alkalinity eluted from the highly alkaline Shichimen I- or other corrosive substances. 3. The appropriate blending ratio of cement 1- in the finished product depends on the type of cement 1- used and the amount of bone 4A.
Although it varies somewhat depending on the f degree distribution, 7A, lil temperature, etc., a range of 20 to 50% by weight is usually desirable.

-1- As shown in the above, it is essential to mix the rib bones] and cement, and as necessary, the admixture used in ordinary conochri-1]). ] agent, dispersant, color activating agent, coagulation enzyme J' or Ua' finishing, increase 1
, 1(]'η are mentioned, but in terms of this [1], particularly important are coloring agents, /\tossing agents, and 'J'T failures 1.

・In general, wear-resistant floors] often serve as a decorative finish for concrete foundations, and are often constructed in factories that involve dangerous work, so a floor surface colored in a safe color is desirable. . For this purpose, greenish chromium oxide, reddish red iron oxide, etc. may be appropriately blended.

In the case of a thin coated floor (-tJ:'), the durability of the floor surface,
Workability has a great influence on the success or failure of a suitable stock market. It is possible to add an AE agent to improve workability, and a dispersant to improve workability as well as strength and reduce water production. It is possible to achieve the purpose.

The wear-resistant tL floor according to the present invention is applied by various conventionally known methods, especially when the concrete is applied to the concrete 1-slab immediately after construction, which is known as the monolithic construction method. lJ method for direct coating, yl-
The method of coating the floor at the same time as pouring mortar, which is known as the BIC construction method, can be done with 7 ears ζ, 1, -1, etc., so you can feel safe when applying. 71 It may be adjusted as appropriate depending on the FA conditions.

The floor surface treated with this composition-Ch1-1 has many characteristics in terms of durability, strength, abrasion resistance, adhesion, and Inn 11:q. When I measured part I9, the maximum was 740. Mountain 1, I
In the abrasion resistance test by 1453, an abrasion index of 9 was observed, which showed strength and abrasion resistance not found in conventional products. Also, in a corrosion test under salt water immersion, no rusting phenomenon was observed in the case where the steel A was made of iron 'J11Yi'.

In a long-term load test at an actual construction site using water, it was confirmed that no dust was generated and the surface remained beautiful from beginning to end, exhibiting excellent oil and water resistance and chemical resistance.

Specific data will be shown in Examples below.

Blend the binder, bones (A), and auxiliary agents so that they have the composition (parts) shown in the examples and comparative examples of winter melon in the Examples/Sample Creation Table, and mix the mixture for 1 hour using a ribbon mixer. Ikg of each mixture of each composition shown in j6 was prepared in step 7.

・Test method (1) JISA1453 (wear index) Mortar consisting of Pol 1-land cement (1 part), Toyoura standard sand (3 parts), and water (07 parts) was placed in a cylindrical frame with a diameter of 10011 m, and a disk with a thickness of 4 mm was prepared. After the surface water has withdrawn,
A wear-resistant layer of 21111 was further formed on the base mortar layer by sprinkling the above sample and using the Tonoving method. After 48 hours, remove from the formwork and settle in water.After 48 hours, 17
II', (I ir
, measure finger n/1-3, (2), Al on 11']08
(Compressive strength) ] - 21 x 2 ] x 35 m
After molding in a mold of 1108, the mold was removed for 24 hours, and air-dried for 27 days, the compressive strength was measured.

(3) Falling ball test A wear-resistant layer with a thickness of 3 mm was formed using the above sample on the top surface of a concrete 1-nurap with a length of 300 sets m and a height of 9 Q mm using the Monolithi-Que method, and after air-drying for 28 days, the weight was measured. 3.9 kg iron ball (diameter 98 mm) 285 m
The sample was allowed to fall naturally onto the floor surface from a height of 1, and the width of the dent caused by the impact was measured.

(4) Salt water test After measuring the abrasion index, the specimens were immersed in a 3% saline solution for 72 hours and then left in the air for 24 hours to observe surface corrosion, rusting, and salt water contamination.

The results of the tests in Section L (1) to (4) are shown in a table.

These results revealed that the specimens obtained by the method of the present invention were significantly superior in wear resistance, strength, and corrosion resistance compared to specimens obtained by the conventional method.

*1. Aggregate particle size *2 Salt water test 5 mm
Passage 100% - No rust, no liquid contamination, average particle size 03-1 mm) + Slight rust +
Author: Patent applicant Rin Kagaku Kogyo Co., Ltd. 71 Commissioner of the Patent Office Shima 1) Tonoro Haruki 1 Indication of the incident Patent Application No. 193039 of 1982 2 Title of the invention Abrasion resistance Flooring Composition 3 Relationship with the Amendment Person Case Patent Applicant Representative Trustee Shi Taka Kei - Trustee
Hisashi Nakamura - 4. Date of amendment order Voluntary 5 Target of amendment 1) Amendment to the column ``Inventor'' in the patent application 2) Amendment to the column ``Detailed description of the invention'' in the specification
Contents 1, Column 2 of ``One Inventor of the Patent Application'' Column 2 of ``Detailed Description of the Invention'' in the Specification 1) The following parts in the specification are corrected as follows.

2) Specification N) On page 2, lines 16-17, the oxidation reaction is promoted (especially by the alkali content leached from the cement) and easily produces iron oxide, causing so-called IJ Bi.
In particular, the exposed iron surface due to wear is exposed to outside air and moisture, and easily forms iron oxides and iron hydroxides, resulting in so-called rust.

3) The column 5 Test Results' in the table on page 8 of the specification is corrected as follows.

Claims (1)

[Claims] Wear-resistant flooring composition consisting of iron phosphorus as cement and aggregate