KR20040088820A - Water soluble color asphalt mortar and thereof construction method - Google Patents

Abstract

PURPOSE: A water-soluble color asphalt mortar and its construction method are provided, to obtain a water-soluble color asphalt mortar for the bottom finishing material of parking place with improved impact strength, crack resistance and adhesive strength. CONSTITUTION: The water-soluble color asphalt mortar comprises 1 parts by weight of cement; 2-4 parts by weight of sand; 0.5-1 parts by weight of a water-soluble asphalt emulsion; a small amount of adhesive; and water. Preferably the mortar comprises 2 parts by weight of sand and 2 parts by weight of silica instead of 2-4 parts by weight of sand. The construction method comprises the steps of mixing the mortar composition; and pasting the composition on the bottom and maturing it. Preferably silica is mixed with sand before cement and sand is mixed. Preferably a latex-based coating agent is thin film-coated on the surface of the constructed one after maturing.

Description

Water soluble color asphalt mortar and according construction method

The present invention relates to a water-soluble color asphalt mortar as a parking lot floor finishing material to be installed on concrete, and a construction method thereof.

Recently, the exterior space of a residential building is a trend that is provided as a resting space for residents by creating a theme park through landscape lights. In addition, the demand for the parking lot is increasing due to the rapid development of the economy and the increase in the number of cars owned. The building has become taller and the basement floor has to be designed and used as a parking lot in order to provide an adequate parking area for each household. However, hardener-based, epoxy-based, urethane-based, epoxy resin mortar-based, etc. are applied in the case of finishing the parking lot floor, and in the case of ground treatment, plain concrete casting, STF, waterproof, etc. are designed without specific criteria according to the taste of the designer. It is a reality that is being deleted.

Conventional finishes are divided into two types. One is a finish constructed of waterproof + plain concrete + iron trowel finish + hardner, and the other is a finish constructed of iron trowel finish + resin lining (or resin mortar). First, in the case of finishing materials including waterproof and plain concrete, waterproofing or coating waterproofing on structural slabs in the form of traditional underground parking lot finishing materials, cast bare concrete for pressing concrete and crack control for hard concrete It has a cross-sectional shape to be constructed. On the other hand, in the case of the finishing material does not contain the concrete, it is an example of improving the strength by thickening or mixing fine aggregates by repeatedly applying a good waterproof and strength resin in order to reduce the burden on waterproof and non-concrete concrete.

Among the two kinds of finishing materials mentioned above, the major and fatal problems of the finishing materials including waterproofing and rootless concrete include cracking and dropping of the finishing layer, which is usually used because of the low strength of 150Kg / ㎠. Only the finishing layer reaches a certain strength under the influence of the surface hardener, and most of the bare concrete is kept at low strength, so that brittle fracture occurs even at a small impact, causing the surface to fall off. In addition, the combination of high slump to improve the workability also accelerates the cracking and dropping by increasing the material separation of the concrete and the high latency on the surface. The second drawback is that there is a burden on air delay due to the addition of a wet process such as waterproof and plain concrete, and the thickness and weight of 100mm plain concrete adds to the structural burden and increases the basement height, resulting in an increase in frame and excavation construction costs and air increase. Done.

On the other hand, defects of the finishing material that does not contain rootless concrete include leaks due to lifting and cracking. Lifting is a phenomenon caused by the lack of adhesion strength between the base surface and the finish material is mainly generated in the useful finishes such as epoxy, resin mortar-based, urethane-based. The required attachment strength depends on the weight of the vehicle, the speed of travel, the coefficient of friction of the finish, etc. The properties of resin-based finishes are more than 30kg / ㎠, but it is difficult to construct by maintaining the completely dry condition (water content of 8% and atmospheric humidity of 85%) during site construction, and it is incomplete in removing latencies and removing surface moisture or high humidity of basement. Work in the space often causes defects in site management.

Often cracks (cracks) occur, which is higher than 500kg / cm2 for epoxy finishes, but 180 ~ 240kg / cm2 for concrete design. Such as cracked concrete) will cause cracks. Even in the case of slight cracks (0.3 mm or less) occurring in concrete structures, epoxy-based and hardner-based flooring materials lacking elasticity can cause cracks due to lack of cracking resistance. It may cause the contamination of the vehicle or the malfunction of the electrical room.

On the other hand, the surface of the resin-based lining has the advantage of selecting a beautiful color and various colors, but the lack of friction generates a slipping sound, and the thinness of the 3mm or thinner coating, the smoothness of the concrete determines the smoothness of the finish to increase the coefficient of friction It has the disadvantage that it needs to be coated with silica sand or mixed with fine aggregates such as silica sand and sand to mortar the resin and construct it with a thickness of about 10mm. This additional complementary work is expensive and adds to the burden on the client.

Asphalt is a construction material that is widely used as a high-performance waterproof material due to its excellent waterproofness, adhesion and crack tracking. However, it is one of the materials that has difficulty in on-site management because it has a drawback that the adhesive force decreases rapidly due to the nature of oiliness on the lower surface of the hassle and wetness that must be always boiled and used.

In recent years, water, asphalt, rubber, water and stabilizers are mixed with a certain ratio to maintain an emulsion at room temperature, so that they are not only excellent in workability but also have water solubility. The application of is increasing.

However, the necessary performances related to the major defects of the parking lot flooring include impact resistance, adhesion, crack tracking, waterproofness and surface friction coefficient. However, since these performance factors have characteristics that are opposite to each other, it is impossible to maintain the best value. Therefore, it is necessary to develop a material having a moderate value for the underground parking lot.

In view of this, cement, sand, silica sand, water, and a coloring agent were mixed in a proportion to water-soluble asphalt to develop water-soluble asphalt mortar. This water-soluble asphalt mortar has a material characteristic that can meet all the performance values such as adhesion, waterproofness, impact resistance, and friction coefficient required for the flooring of the passenger car parking lot, and existing defects such as lifting, leaking, cracking, and sliding. Will be solved fundamentally.

It is an object of the present invention to prevent water leakage through crack control in this background, improve impact resistance, improve cracking and durability, and increase adhesion strength on wet adhesion surfaces, thereby essentially removing defects on lifting, water-soluble asphalt mortar This is to provide quality improvement and cost reduction through this.

In order to achieve the above object, the present invention, in the floor finishing material to be installed on the concrete, 0.5 to 1 part by weight of water-soluble asphalt emulsion and a small amount of additives and water in 1 part by weight of cement and 2 to 4 parts by weight of sand mixed It is composed of one water soluble color asphalt mortar. The present invention comprises 2 parts by weight of the sand and further mixed with 2 parts by weight of silica sand. Cement and sand are administered for increased strength and increased durability, and silica sand is formulated for increased friction and wear resistance. The water-soluble color asphalt mortar is administered with additives for color development and stabilization of tissue.

The construction method of the present invention for achieving the above object, in the floor finishing method to be constructed on the concrete, 1 part by weight of cement and 2 to 4 parts by weight of sand, mixed with 0.5 to 1 part by weight of water-soluble asphalt emulsion After mixing and stirring the additive and water, it is to be cured by construction on the floor. The present invention includes adding a process of mixing 2 parts by weight of silica sand with 2 to 4 parts by weight of sand before mixing the cement and sand. In addition, the present invention includes applying a thin film of the latex-based coating on the upper surface after the curing.

In order to be suitable for the physical properties of the parking lot flooring, it is most suitable to mix and stir a small amount of additive and water with each of the above-mentioned weight mixing ratios of cement 1, sand 2-4, silica sand 2, and water-soluble asphalt emulsion. In addition, it is also necessary to apply a thin film coating latex-based coating agent in order to prevent contamination and improve water resistance after the development of a certain strength by curing in place.

Hereinafter will be described the principle of water-soluble color asphalt mortar of the present invention. Water-soluble asphalt, which has been improved by stirring rubber and stabilizer on general asphalt, has excellent water resistance, crack tracking, and adhesion, but it is used only as a waterproofing material due to its relatively low impact resistance, strength, and friction. In addition, cement, fine aggregate, and water-moistened cement mortar have excellent adhesion, strength, abrasion resistance, and friction, but have many cracks due to dry shrinkage, brittle fracture at impact, and no crack follow-up, which causes co-cracking of the base metal. Low is inadequate.

In the case of asphalt concrete, it is impossible to carry in the underground floor through dumping and construction of heavy equipment, and it should be about 100mm thick because it is not waterproof and crack-following. For this reason, water-soluble asphalt + cement mortar + admixture + coloring material + water was stirred to pour and develop water-soluble color asphalt mortar having only two physical properties.

The water-soluble asphalt in the lower layer does not sink after casting, forming an asphalt waterproof layer on the slab surface. The water-soluble asphalt in the upper layer exhibits the properties of non-shrink mortar by hydration with water, cement, silica sand and sand, eliminating dry shrinkage cracks, By increasing the strength and abrasion resistance of the water-soluble asphalt is to have both the performance of the waterproof material and the floor finishing material of the parking lot.

Water-soluble color asphalt mortar specimens were applied to the STF concrete surface, and after curing, 1kg of iron balls began to drop from 50cm to 200cm in increments of 50cm.

The mixing ratio of cement, sand, silica sand, water soluble asphalt, and water depends on the material properties of water soluble asphalt mortar, and the impact test, permeability test, tensile test, strength test, and internal resistance of each compounding ratio for the purpose of deriving the mixing ratio for proper performance. As a result of the tests of abrasion test, water absorption, slip resistance, etc., the optimum compounding ratio was close to the following compounding ratio.

1 part by weight of cement: 2 parts by weight of sand: 2 parts by weight of silica sand: 0.85 parts by weight of water-soluble asphalt: 0.43 parts by weight of water: minute amount of additives

For the purpose of verifying the waterproofness and sag resistance of the formulation, a permeability test sample to be immersed in an acrylic water tank of a predetermined size and a separate acrylic water tank to give a deformation amount for sag are added to add a deformation amount of 0.5 mm per day. Permeability and cracking were observed.

Ten days test result was excellent in permeability, but in the deflection strength test, the waterproofness was maintained at 1.0mm displacement, but cracks occurred while cracking at 1.5mm displacement. Since the allowable amount of deflection of the slab is about 1/300, it can be seen that the construction box is advantageous for maintaining the waterproof layer after initial cracking and initial deflection through sufficient curing of the structural slab.

As the main construction concept, it is necessary to use a separate primer to increase the adhesion between the water-soluble rubber mortar and the slab, and if the proper strength is exerted 50kg / ㎠ or more after the water-soluble rubber mortar casting and curing, the upper exposed surface is contaminated. In order to prevent and improve water resistance, it is necessary to apply a latex-based upper coating as a thin film.

Hereinafter, the present invention will be described in more detail with examples.

The water-soluble asphalt emulsion is a compound obtained by stirring rubber, surfactant, stabilizer, etc. on general asphalt, and the brand name 'RUBAS' of Ewha Corporation and the name 'CRM asphalt' of Unix Lava Can be used. Water-soluble asphalt emulsions consist of at least 15% by weight of the rubber component and are sufficiently reacted to expand the rubber particles in the asphalt. However, such water-soluble asphalt emulsions alone have excellent waterproofness, crack tracking, and adhesion, but they have been relatively lacking in impact resistance, strength, and frictional force.

For this reason, the present invention is to develop water-soluble color asphalt mortar having only two physical properties by stirring and pouring cement mortar, admixture, coloring material, and water in water-soluble asphalt emulsion. At this time, if the water-soluble asphalt emulsion is 0.5 to 1 part by weight, it is suitable that the cement is also 1 part by weight, and the sand should be 2 to 4 parts by weight. The silica sand may be added additionally in the range of 2 parts by weight for increasing friction and wear resistance. Of course, in the above ratio, it is necessary to add 0.43 parts by weight of water in order to have the same viscosity as conventional cement mortar.

When mixed and stirred at this ratio, the water-soluble asphalt in the lower layer sinks after pouring and forms an asphalt waterproof layer on the slab surface, and the water-soluble asphalt in the upper layer is hydrated with water, cement, silica sand, and sand, resulting in anhydrous mortar. Dry shrinkage cracks are eliminated and silica sand and sand increase the strength and abrasion resistance of the water-soluble asphalt, and thus have both the performance of the waterproof material and the floor finish of the parking lot. In particular, the water-soluble asphalt in the cement mortar structure exhibits the properties of ductile destruction against cracking and impact by exhibiting elastic performance, which is a characteristic of rubber and asphalt, so that the impact resistance is remarkably improved.

Table 1 below shows examples in which water-soluble asphalt emulsion and Portland cement and sand or sand and silica sand are blended in a suitable ratio within the range of the ratio as described above.

sample Portland Cement Water Soluble Asphalt Emulsion sand Kyu Sa importance Application example First embodiment One 0.85 2 2 2.04 Heavy Transportation Award Second embodiment One 0.85 4 - 1.82 Gyeongju Traffic Award Third embodiment One 0.85 3 - 1.81 Press waterproof layer Fourth embodiment One One 2 - 1.79 Congratulation Fifth Embodiment One 0.5 4 - 1.82

The above water-soluble asphalt emulsion has a solids concentration of 60%, a viscosity of 2000 cps or less, a specific gravity of 1.0 and a pH of 9.0. Water was added in the same amount of 0.43 parts by weight, and a color developer was added in a small amount by selecting one of black brown, brown, and green colors. In the mixing method, sand and silica sand are put first and mixing is started. Then add a predetermined amount of cement and continue mixing. After the aggregate is mixed completely uniformly, water soluble asphalt emulsion is added and mixed completely uniformly to form water soluble asphalt mortar.

Such water-soluble asphalt mortar is usually applied directly to the concrete floor. To do this, first treat the floor and clean the floor. In other words, the floor treatment is done by removing the stretch cord and the rattans, V cutting the wide cracks, and applying the coating material (paint, traffic paint, etc.) to remove the coating material or respond as necessary. Apply. That is, 0.3 kg / m <2> is apply | coated to the water-soluble synthetic rubber dilution solution. A well mixed water-soluble asphalt mortar is applied to a predetermined thickness using a trowel.

When the construction as described above 3.5 hours after the hydration reaction is started, after 6 hours the chemical reaction is terminated to the extent possible to walk, and after 24 hours the car is cured to pass.

Table 2 below is a test result of applying the adhesiveness of the first embodiment of the present invention and the normal mortar (cement 1: sand 3) samples to various floors. As the type of floor, concrete, ascone, ALC, iron plate, veneer plate, and water-soluble asphalt mortar curing plate (rubber color in Table 2) were used. In the test method, mortar was applied to various floors with a thickness of about 20 mm and dried for 2 weeks, followed by axle tension test.

Type of floor Primer presence First embodiment Mortar Adhesive force (kg / ㎠) condition Adhesive force (kg / ㎠) condition concrete none 7.2 Curing curing 4.4 primer 8.6 〃 Ascon none 6.4 〃 6.7 primer 7.5 〃 ALC none 5.3 〃 1.9 primer 5.9 〃 iron plate none 2.3 〃 1.8 primer 7.9 〃 Beniafan none 1.9 Interfacial separation 1.9 primer 3.8 〃 Rubber collar none 7.0 Curing curing primer 6.6 〃

Table 3 shows the results of testing the rate of change of the lengths of the first, second and fourth examples, and the mortar (cement 1: sand 3) samples. The test method is according to JISA1125 (conparate method) and the curing is 28 days.

sample Length change rate (Dry length change × 10 ^-4 (%)) First embodiment 6.29 Second embodiment 8.31 Fourth embodiment 9.27 Mortar 10.65

Table 4 below shows the results of testing the compressive strength and the flexural strength, respectively, by taking samples of 14-day curing and 28-day curing for the first to fifth embodiments and the mortar (cement 1: sand 3). The test method is in accordance with JISR5201.

sample 14 days of curing Curing 28 days Compressive strength (kg / ㎠) Flexural strength (kg / ㎠) Compressive strength (kg / ㎠) Flexural strength (kg / ㎠) First embodiment 84 40 113 56 Second embodiment 57 29 103 50 Third embodiment 67 37 96 46 Fourth embodiment 7 42 91 47 Fifth Embodiment 124 43 153 59 Mortar 166 44 164 50

Table 5 below is a test of the immersion and water absorption, the results of comparing the immersion amount and the absorption rate for the first to fifth examples and the normal mortar sample. Usually mortar was divided into the ratio of cement 1: sand 3 and the ratio of cement 1: sand 4. As a test method, the permeation test was in accordance with JISA1404, and the sample was immersed at 3 kg / cm 2 water pressure for 1 hour after curing for 21 days, and then the amount of immersion was measured. Absorption test was according to JISA1404 and the samples were cured for 21 days and the water absorption was measured after immersion each time.

sample Immersion amount (qr) Absorption rate (after 48 hours,%) First embodiment 0.17 0.11 Second embodiment 1.0 1.30 Third embodiment 0.5 1.15 Fourth embodiment 0.5 0.71 Fifth Embodiment 1.1 1.87 Moderate mortar (1: 3) (1: 4) 49130 or more 9.6910.28

Table 6 below shows the impact resistance test as shown in Examples 1 to 5, and 2 m of 1 kg weight for ordinary mortars having different mixing ratios (cement to sand ratio 1: 3, 1: 4). This is the result of testing the impact strength at 4m height. The test method is according to JISA5403. After applying mortar of test object to concrete block with 10mm thickness and curing for 10 days, the weight (diameter 50.8mm, weight 1kg) specified in JISA5403 is dropped at 2m and 4m height, and pie The presence of cracks is measured. As a result of confirming the surface state, it was confirmed that the impact resistance by ductile fracture was improved.

sample Impact Strength (1kg × 2m Height) Impact Strength (1kg × 4m Height) crack Pie depth (mm) Pie diameter (mm) crack Pie depth (mm) Pie diameter (mm) First embodiment none 1.5 18 none 2.1 20 Second embodiment none 1.5 18 none 2.2 22 Third embodiment none 1.4 17 none 2.3 22 Fourth embodiment none 1.3 18 none 2.1 21 Fifth Embodiment none 1.4 17 none 1.9 21 Moderate mortar (1: 3) (1: 4) None 0.91.1 1315 None 1.41.9 1620

Table 7 is a test of wear resistance, the results of the first and fifth examples, and the amount of wear was tested for the mortar (the ratio of cement and sand 1: 3, 1: 4) of different mixing ratios, respectively. In the test method, 5mm thick mortar samples were applied to the bottom of the slate plate, and after 21 days of curing, the taper wear tester was tested. The wear wheel was CS-17, the wear count was 1,000 revolutions, and the load was 1 kg.

sample Wear (gr) First embodiment 0.1402 Second embodiment 0.1440 Third embodiment 0.1189 Fourth embodiment 0.0962 Fifth Embodiment 0.129 Moderate mortar (1: 3) (1: 4) 0.31450.2781

Table 8 shows the test results of the slip resistance of the first to fifth examples and ordinary mortars having different mixing ratios (a ratio of cement to sand of 1: 3 and 1: 4). The test method was in accordance with JISA1407. Sample mortar was applied to the bottom of the slate plate with a thickness of 10 mm, and after 7 days of curing, the slip resistance value was measured by a portable skid resistance tester.

sample Skid resistant Dry floor Wet floor First embodiment - 52 Second embodiment 102 48 Third embodiment - 54 Fourth embodiment 123 60 Fifth Embodiment - 55 Moderate mortar (1: 3) (1: 4) - 6377

Table 9 shows the results of testing chemical resistance of the first example and the normal mortar sample in which cement and sand were mixed in a ratio of 1: 4. In the test method, samples were prepared in accordance with JIS A1172, and after 14 days of curing, the state was observed after 28 days after soaking in each chemical (20 ° C).

medicine First embodiment Moderate mortar (1: 4) Kinds density(%) Sulfuric acid 510 Eroded, surface material heavily eroded Greatly eroded Hydrochloric acid 10 Surface softened a little Heavily eroded Sulfuric acid 10 Surface softened a little Heavily eroded Caustic soda 10 The surface is slightly discolored The surface is slightly discolored Neutral detergent 10 No change No change Hydrochloric acid 5 No change No change Kerosene - Surface is slightly softened No change

Table 10 is a test of the heat resistance, the results of the thermal conductivity test for the first embodiment, concrete, asphalt for asphalt, steel sheet, and the like.

sample Thermal Conductivity (Kcal / m · hr · ℃) First embodiment 0.390 concrete 1.30 Floor asphalt 0.38 iron plate 46

In order to further increase the adhesion between the water-soluble asphalt mortar and the slab as described above, it is necessary to use a separate primer as shown in the adhesion test of Table 2. When proper strength of 50kg / cm 2 or more is exerted after water soluble asphalt mortar pouring and curing, it is necessary to apply a latex-based top coating in a thin film to prevent contamination and improve water resistance.

Table 11 below compares the average value of the present invention with the properties and the advantages and disadvantages of various parking lot floorings.

division Epoxy coating Epoxy Lining High Rigid Urethane Epoxy mortar The present invention Property comparison Compressive strength (kg / ㎠) 568 573 85 574 110 Adhesion Strength (kg / ㎠) 33 34 321.3 45 14 Length change rate - - 150 2 0.06 1kg weight fall Defective Great Good Great Good Background treatment S.T.F S.T.F S.T.F Exposed surface treatment Exposed surface treatment How to paint Brush, Laura SPREADER Brush, Laura, Laura Spray Pattern Laura SPREADER Housework time More than 24 hours More than 24 hours More than 24 hours More than 27 hours 7 days or more Advantages 1. Economical 2. Excellent wear resistance and adhesion 3. Various colors available 4. Excellent pollution and wash resistance 5. Excellent workability 6. Easy maintenance and repair 7. Low construction cost per unit 1. Excellent pollution resistance and water resistance 2. No seam and excellent smoothness 3. Possible to coat 2 ~ 3mm thick at once 4. Excellent workability, easy part repair 5. Dustproof, waterproof 1.Crack tracking, waterproof 2.Abrasion resistance, chemical resistance 3.Elasticity, walking comfort 4.Aesthetic appearance, free choice of color 1.Excellent slip resistance 2.No noise during steering wheel operation 3.Excellent wear resistance (contains surface alumina) 4.Extension rate (70% of urethane) and excellent adhesion 5.Excellent cleaning property 1. Wet floor construction (wetting surface adhesion strength glass) 2. No noise when rotating the vehicle 3. Excellent non-slip effect 4. Good followability against cracks 5. Excellent dust and abrasion resistance 6. No maintenance costs Disadvantages 1. Appearance is smooth even when the floor is rough. 2. Weak resistance to small cracks. 3. Surface surface is exposed. 1. No coating on sloped surface 2. High price 3. Slippery surface 4. No crack tracking 1.Closed surface when suddenly stopped 2.High price 1.Pattern formation technology required by skilled workers 2.Vulnerable to crack tracking 1. Slightly dark in appearance 2. Slightly insufficient surface smoothness 3. Need to improve construction joints 4. Material separation during construction

Existing underground parking lot is a concrete concrete to protect the waterproof and waterproof layer and iron trowel finish to increase the smoothness of the finish surface, and applied to the hardener or resin-based finish material, but the water-soluble asphalt mortar of the present invention was constructed with a thickness of 10mm After pouring, the water-soluble asphalt precipitated to form a thin layer to act as a waterproof layer, and the upper asphalt mortar acts as a waterproof protective layer and floor finish, thereby eliminating waterproof, bare concrete, and iron trowel finish. This results in the reduction of air quality and quality by eliminating the wet process and the side effect of minimizing the depth of excavation by reducing the layer height of bare concrete.

The water-soluble color asphalt mortar of the present invention has the characteristics of cement mortar and water-soluble asphalt, so that it can be installed on a wet surface by melting with water, and the adhesion force is not degraded due to moisture in the air or slab. Excellent constructability. The ease of on-site management has a quality control effect, thereby fundamentally preventing defects caused by lifting. In addition, the silica sand and sand in the water-soluble color asphalt mortar of the present invention is exposed to the finish surface to increase the friction force and significantly reduce the risk of noise and the noise caused by the sliding and braking during vehicle rotation and braking.

In addition to reducing the cost of work such as waterproofing and bare concrete trowels, which are carried out at the existing parking lot finishing, the price of the product is less than half as it has the properties of epoxy resin mortar, which reduces the cost. As it acts like a certain amount on crack and deflection of the base slab, there is no need for damage and maintenance due to penetration cracking and leakage, and it is more durable than thin resin coating and lining by constructing with 10mm thickness of wear-resistant material.

By applying cold process without heating asphalt, safety problem and construction by toxic poisonous gas poisoning during operation are simplified. Water-soluble asphalt penetrates and coagulates against the crack of the base slab to compensate for leakage defects and decrease of durability of the structure.

Claims (5)

In the floor finishing material to be installed on the concrete top, A water-soluble colored asphalt mortar comprising 0.5-1 part by weight of a water-soluble asphalt emulsion, a small amount of additives and water, mixed with 1 part by weight of cement and 2-4 parts by weight of sand. The method of claim 1, The sand is 2 parts by weight and water-soluble color asphalt mortar, characterized in that the mixture of 2 parts by weight of silica sand. In the floor finishing method to be installed on the concrete top, 1 part by weight of cement and 2 to 4 parts by weight of sand are mixed, 0.5-1 part by weight of water-soluble asphalt emulsion, a small amount of additives and water are added thereto, mixed and stirred, and then cured by construction on the floor. Color asphalt mortar construction method. The method of claim 1, Water-soluble color asphalt mortar construction method characterized in that the process of mixing first 2 parts by weight of silica sand with 2 to 4 parts by weight of sand before mixing the cement. The method of claim 1, A water-soluble color asphalt mortar construction method characterized in that a thin film is coated on the upper surface after the curing.