TWI241997B - Method for producing hardened slag product - Google Patents

Abstract

A method for producing a hardened slag product, which comprises providing a mixture containing 15 to 55 mass % of a slag from a step of pretreatment of hotmetal having a particle diameter of 1.18 mm or less and 5 to 40 mass % of a blast furnace slag having a particle diameter of 0.1 mm or less, kneading the mixture with water, and then subjecting the kneaded product to curing; and a more suitable method, which comprises providing a mixture containing 15 to 55 mass % of a slag from a process of pretreatment of hotmetal having a particle diameter of 1.18 mm or less, 3 to 36 mass % of a blast furnace slag having a particle diameter of 0.1 mm or less, and 1.5 to 30 mass % of a fly ash, wherein the mass ratio of the fly ash to the sum of the blast furnace slag and the fly ash is 0.1 to 0.75, kneading the mixture with water, and then subjecting the kneaded product to curing. Those methods allow the utilization of a slag from a steel making process and also the production of a hardened slag product having a satisfactory strength and being free from the occurrence of surface cracking. The hardened slag product is useful as a material for subbase course of a road, a building material, a material for a civil work or a substitute for concrete.

Description

1241997 A7 B7 V. Description of the invention (1) Technical field (please read the precautions on the back before filling out this page) The present invention relates to a method for manufacturing slag hardened materials, and more specifically, to the use of previously difficult to effectively use in The technology of improving the strength of hardened products and reducing cracks by using the powder and granular pre-melting treatment of road and road materials, civil materials, artificial stones, marine hard blocks, other concrete substitutes, and construction materials. BACKGROUND ART Slags generated in steel-making projects are highly basic and contain a large amount of C a0 (hereinafter referred to as free c a 0) in the form of a primary compound. Therefore, it is easy to absorb moisture and swell, and it is not suitable for use as blast furnace slag-like civil engineering and construction materials, and it has long-term residual problems in its disposal and utilization. So, ‘in order to break this situation, we ’ve also tried to actively develop several technologies for making steel slag. In particular, attempts have been made to use silica-containing materials such as blast furnace slag in combination with steelmaking slag. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. For example, JP-A No. 10 — 1 2 5 3 6 4 is to reveal that it contains more than 50% of aggregates that can contain steelmaking slag and silica containing potentially hydraulic properties. One or both of a substance and a silica-containing substance having a hardening reactivity, and a hydrated hardened body produced by mixing with a hardened adhesive material through a hydration reaction. In addition, Japanese Unexamined Patent Publication No. 2-2 3 3 5 3 9 discloses that all bonding materials, fine bone materials, and coarse bone materials are pulverized and broken into iron-steel slag. Slag block made from slag and steel slag. Furthermore, Yu Kaiping No. 1 -1 2 6 2 4 6 discloses that the slag of the converter is crushed to 5 mm or less. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 47 mm) Λ 1241997 A7 ______ B7_ V. Description of the invention (2) (Please read the precautions on the back before filling in this page), magnetic separation, drying, and pulverization at 3000 ~ 5000cm2 / g 'mixed in the blast furnace slag fine powder 1 0 ~ 3 0 Example of blast furnace cement with weight% converter slag. In addition, we previously proposed in Ep 0994196A1 that a steelmaking slag containing 50% by weight of steelmaking slag having a particle size of 5mm or less and a steelmaking slag which is solidified by hydration reaction with a mixture containing SiO2g 30% by weight. Method for lumping of slag. Furthermore, in Japanese Patent Application Laid-Open No. 5 9 — 1 6 9 9 6 6, it was disclosed in the blast furnace water crushing slag that the converter slag dust was added to the mixed road material at an absolute dry weight ratio of 10 to 60%. However, when the present inventors tried to make a slag hardened product (hereinafter, also referred to as “hardened product”) using steelmaking slag as a raw material using the above-mentioned prior art, they learned the following problems. First of all, if according to the methods described in JP 10-152364, JP 1-126246, and EP0994196A1, if the converter slag is used as the steelmaking slag, the water at 20 ° C ------...- In the case of medium curing (cure), the hardened material collapses, and sometimes it is not satisfactory. Then, investigate the cause in detail. In recent years, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, in order to protect the refractory in the converter, dolomite and magnesia frit are added to the slag, which makes M g 0 in the converter slag caused by these substances. The density becomes higher. When using such a converter with a high concentration of M g〇, the M g 0 (hereinafter, described as free M g 0) in the state of a first-class compound contained in the converter slag is matured in water and hydrated and swelled, and can be judged. Knowing that the hardened substance to be produced is broken. Based on this finding, the inventor thought of using almost no free Mg. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 1241997 A7 _B7_ V. Invention Note (3) The pre-melting and milling treatment slag is used as steel making slag. Therefore, the steelmaking slag aggregate described in the above-mentioned Japanese Patent Application Laid-Open No. 10-1 2 5 3 4 was subjected to the slag treatment using this pre-melt milling, and a slag hardened product was tested under the same conditions. However, the compressive strength of the obtained hardened product is less than 20 N / m m 2 and cannot be accepted as a substitute for cement-concrete. Here, the "pre-melting and milling process" refers to pre-refining the melting and milling in a converter and adding various refining agents in advance to the melting and milling before the converter is supplied for desiliconization, dephosphorization, and desulfurization. In this case, the slag generated by the previous treatment is called "pre-melting and milling treatment slag" and is included in the category of steelmaking slag. Hereinafter, the expressions such as “Si-removing slag”, “P-removing slag”, and “S-removing slag” mean that the melt milling is performed when the pre-removing S i process, the pre-removing P process, and the pre-removing S process are performed. The slag that occurred. On the other hand, according to the method described in the aforementioned Japanese Patent Application Laid-Open No. 2-2 3 3 5 3 9, when the converter slag is used as a raw material for the slag hardened material, the slag must be finely pulverized. However, the converter slag contains more free Mg 0 as described above. Therefore, the slag itself becomes hard and difficult to be turned into fine powder, and it has a problem that the crushing cost is extremely high when it is crushed to fine powder having high reactivity. Therefore, using the premelting and milling treatment slag which contains almost no free M g0 as described above, it is attempted to produce a slag hardened body by blending the raw materials described in the aforementioned Japanese Patent Application Laid-Open No. 2-2 3 3 5 3 9. In addition, when the premelting and milling slag is used instead of the converter slag in JP-A No. 1 -1 2 6 2 4 6, the compressive strength of the hardened product obtained is less than 20 N / mm 2 and cannot be replaced. Use of cement-concrete. In addition, even if it contains less than 30000 cm 2 / g, the paper size applies the Chinese National Standard (CNS) A4 (210X297 mm). I Thread (please read the precautions on the back before filling this page) 1241997 A7 B7 V. Description of the invention (4) In the case of pre-melting milling slag with a diameter of more than 0.7 mm, the strength of the hardened product is insufficient, and many cracks occur. (Please read the precautions on the back before filling in this page.) Furthermore, if the raw materials disclosed in EP0994196A1 are used as steel making slag and the premelting process is used to produce slag hardened products, Many cracks can be seen. It can be judged that these hardened products are unsuitable for hardened construction slag hardened products that require strength and beautiful appearance. In addition, the converter slag dust described in JP 5 9 — 1 6 9 9 6 6 was used instead of the pre-melting and milling slag dust. When trying to manufacture a slag hardened product, only the slag agglomerates, and it is impossible to obtain it. Hardened like concrete. In view of such circumstances, the present invention is directed to a method for producing a slag hardened product in which a steelmaking slag is used as a part of the raw material and a hardened product can be produced without insufficient strength and cracks. Presentation of the invention The present invention which achieves the above-mentioned object is to include (a) a pre-melted milling slag with a particle size of 1.18 mm or less printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs: 15-55% by mass, and (b) Blast furnace slag having a particle size of 0.1 mm or less: A method for producing a slag hardened product in which 5 to 40% by mass of a substance is kneaded with water and hardened. In addition, (a) a pre-melted slag containing slag having a particle size of 1.1 to 18 mm: 15 to 55% by mass, and (b) a blast furnace slag having a particle size of 0 to 1 mm: 3 to 36 mass % And (c) Dust: 1 · 5 ~ 30% by mass, and relative to the total paper size of the blast furnace slag and dust, the Chinese National Standard (CNS) A4 specification (210 X 297 cm) 1241997 A7 B7 V. Description of the invention (5) The invention of a method for manufacturing a slag hardened substance whose mass ratio of floating scum is from 0.1 to 0.75 after kneading with water. — — I! —! — ·! (Please read the precautions on the back before filling out this page) 尙 In the above two manufacturing methods, relative to (a) pre-melting with a particle size of 1 · 18 mm or less The mass ratio of the processed slag, (b) blast furnace slag having a particle size of 0. 1 mm or less, and (c) flying dust, the premelting and milling slag is more than 0.2. Furthermore, in any of the above-mentioned production methods, the oxides, hydroxides, sulfates, and chlorides of alkali metals, and the oxides, hydroxides, sulfates, and At least one kind is selected from the group consisting of chlorides, and it is preferable to add 0.2 to 20% by mass based on the total of the blast furnace slag and dust. Furthermore, in any of the above-mentioned production methods, at least one selected from the group consisting of naphthalenesulfonic acids and polycarboxylic acids is included in the content described, and the blast furnace slag, fly ash, and particle diameter are 0.1 mm. The total of the following pre-melt-milled slag is added in a range of 0. 1 to 20% by mass. Line 1 The best form for implementing the invention. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The embodiment of the present invention will be described in detail below. First, the present invention uses a pre-melt-milled slag as a steelmaking slag for the following reasons. That is, (1) In the pre-melting and milling process, since M g0 is not added to the refining agent, the original Mg 0 concentration of the generated slag is low, and C a / S i α is low. In addition, some MgOs exist almost as high-order compounds as C2MgSi207, and there is almost no free MgO. The paper size is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) " 1241997 A7 ___B7_ V. Description of the invention (6) On the ground, M g0 contained in converter slag almost exists as free M g ◦ type. Free M g0 is different from free C a 0, and it is difficult to produce stable hydroxide by aging treatment. Therefore, it is possible to eliminate the problems of cracks, chalking, deformation, and strength reduction of the hardened materials caused by the free hydration expansion of the free M g 0 generated when the converter slag was used as a raw material. (2) The slag for the pre-melting process is as described above, CaO / S! 〇2 is low, and P205 concentration is high, so Ca〇 is mostly 2Ca〇 · S i〇2, 3 C a 0 · P205 Other advanced compound types exist. Therefore, the free C a 0 concentration is low. Therefore, the hydration and swelling caused by free C a 0 is also low, and the problems of cracking, chalking, deformation, and strength reduction of the hardened material caused by the hydration and expansion of free C a 0 in steelmaking slag can also be solved.倂 The possibility of sweeping. (3) There are many micropowders and high hydration reactivity, so it can replace other blast furnace slag micropowder and floating dust and other complex substances. (4) Free Mg 0 is almost absent, so the slag itself is soft and much easier to crush than the converter slag. (5) If the pre-melting and milling slag is fine powder, the pre-melting and milling slag, the above-mentioned blast furnace slag fine powder and floating dust are easily hydrated with each other, and the strength can be further enhanced. However, in the case of trial hardened products, the premelting and milling treatment alone is used to reduce the strength of the hardened material and its effect on cracks. Then, the present inventors investigated in detail what kind of particle size material is helpful for the hardening reaction in the pre-melt-milled slag. As a result, it was found that those having a particle size of 1.1 mm had good reactivity, and the strength of the obtained hardened product became higher. The paper size was adapted to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ^ — — I! !! ·! (Please read the notes on the back before filling out this page) Ordered by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs to print 1241997 A7 __B7___ 5. Description of the invention (7), and the occurrence of cracks has been significantly reduced. Therefore, in the present invention, the content of the particle size in the pre-melt milling slag of 1 · 18 or less is specifically limited in the full compound except water (please read the precautions on the back and fill in this 贳). . Among these, a more preferable particle diameter is 425 mm or less, and a particularly preferable particle diameter is 0.001 to 425 mm. Alas, it is because the pre-melting and processing slag in the matching does not prevent the pre-melting and processing slag with a particle size larger than 1 · 18 mm. The pre-melt milling slag with a large particle size not only means that it is difficult to smash during the pulverization process, but because it has a certain degree of strength, it is helpful as an incremental material, and because of its high activity, it also helps It is an adhesive material. The particle size referred to in this case is a number obtained by a screening test, and can be measured in accordance with methods such as JIS A1102 and JISA1103. The invention uses a substance in which there is almost no free M g 0 phase in the steelmaking slag, and the amount of use is limited to an appropriate range, so that the free M g 0 matures in water and does not cause hydration expansion. As a result, the produced slag hardened material has not only high strength but also no cracks. Furthermore, there are almost no cracks caused by the dry shrinkage of the slag hardened material. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, this invention limits the amount of slag with pre-melting and milling treatment with a particle size of 1.1 mm or less. On the other hand, the S i 〇2 containing substances that react with it are also Fit with the right amount. Such S i 0 2 containing materials are preferably potentially hydraulically or hardly reactive. Specifically, fine powder of blast furnace slag or a mixture of fine powder of blast furnace slag and flying dust is used. In the following, the fine powder of the blast furnace slag referred to in this case has a particle size of 0.1 mm or less, preferably 0. 07 mm or less, that is, the specific surface area according to the Brain method: The paper size is applicable to the Chinese National Standard (CNS ) A4 specification (210X297mm) -10- 1241997 A7 B7 V. Description of the invention (8) 3000 ~ 5000cm2 / g. Such fine powder of blast furnace slag can be suitably used as crushed blast furnace slag. The particle size of the blast furnace slag is set to 0. 1 nim or less. If it exceeds 0. 1 mm, the reactivity of steelmaking slag and flying dust becomes low. In addition, the floating dust referred to in the present case is a substance containing S i 0 2 which has the same latent hydraulicity or hardening reactivity as the fine powder of blast furnace slag, and is generated by the combustion of charcoal. In this case, the particle diameter of the flying dust is not limited, but the particle diameter is generally 0. 2 m m or less, that is, the specific surface area corresponding to the Brain method is 1 500 cm / g or more, and the powder itself is extremely fine powder. If it is used instead of a part of the blast furnace slag with a particle size of less than 0.1 mm, the reactivity with the pre-melt milling slag can be further improved, the occurrence of cracks in the hardened material can be suppressed, and the strength after long-term aging can be improved. . Alas, when a blast furnace slag having a particle size of 0.1 mm or less is used alone, its appropriate content is 5 to 40% by mass. In the present invention, the reasons for limiting the content of the slag and the fine powder of the blast furnace slag as described above are as follows. That is, when the pre-milling slag content of the particle size of 1 · 18 mm or less is less than 15% by mass, or the blast furnace slag content of the particle size of 0 · 1mm or less is more than 40% by mass, the relative This makes the supply balance of alkali metal ions or alkaline earth metal ions that react with S i 0 2 unable to match, and reduces the strength of the resulting hardened product. In addition, when the content of the pre-melt-milled slag having a particle size of 1 · 18 mm or less exceeds 55 mass% or the content of the blast furnace slag having a particle size of 0 · 1 mm or less is less than 5 mass%, Insufficient S i〇2 of components such as C a0 with hydration and swelling in the pre-melting and milling treatment slag is insufficient, so that the obtained hardened product is aged in water (please read the precautions on the back before filling this page). The paper printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is compliant with the Chinese National Standard (CNS) A4 specification (210X297 mm) -11-1241997 A7 _B7____ V. Expansion and chalking of the hardened material in the description of the invention (9), and Significant reduction in intensity. That is, the first invention of the present case is to melt the slag containing (a) a pre-melted milling slag having a particle diameter of 1.1 mm or less: 15 to 55% by mass, and (b) a blast furnace melting having a particle diameter of 0 to 1 mm or less. Slag: 5 to 40% by mass of a substance, a method for producing a slag hardened product which is hardened after being mixed with water. Alas, in the above-mentioned kneading operation with water, the amount of water and the stirring means are not particularly limited. However, in order to promote the hydration reaction between slags, it is preferable to form a slurry. If it is formed into a slurry form, it is easy to form because the fluidity is imparted. The raw material slags of the present invention are all fine powders, and the method of using water as a slurry and placing it into a molding template to hydrate and harden it is the most suitable. However, it is not excluded to be shaped into a cake or unshaped for use. When the complex of the present invention is made into a slurry state, that is, an appropriate amount of water for a slump of 3 cm or more is used, which is more than 64 wt%, and more preferably 8 to 13 wt% relative to the complex. The amount of water in the range of 4 to 8 w t% relative to the complex becomes a cake with a drop of less than 3 cm. Alas, it varies depending on the raw materials used and the mix, so it is better to determine the appropriate amount of water through a drop test. Furthermore, when the mixture of blast furnace slag fine powder and flying dust is used as the S 102-containing substance, the present invention contains (a) a pre-melt milling slag having a particle size of 1 · 18 mm or less: 15 to 55 Mass%, (b) blast furnace slag having a particle size of 0. 1 mm or less: 3 to 36 mass%, and (c) fly ash: 1.5 to 30 mass%, and compared to the total of the blast furnace slag and fly ash Substances with a mass ratio of floating dust of 0.1 to 0.75. This complex is mixed with water and hardened to produce a hardened body. The reason for this limitation is as follows. This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the notes on the back before filling this page), printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives-12- 1241997 A7 B7___ 5 2. Description of the invention (10) First, the reason for setting the content of the pre-melt-milled slag with a particle size of 1 · 18 mm or less to 15 to 55% by mass and the particle size of the blast furnace slag to be 0 · 1 mm or less The reason is the same as the reason described previously, so the explanation is omitted. The fine powder of the blast furnace slag having a particle size of 0. 1 m or less is 3 to 36% by mass, because if it is 3% by mass or more, a hardened product with high strength can be obtained. On the other hand, if it exceeds 36% by mass, the increased strength is saturated and a better effect cannot be expected, so it is uneconomical. This effect is significant when the content of the fly ash is 1.5 mass% or more, and the ratio of the content of the fly ash to the total content of the blast furnace slag and the fly ash having a particle size of 0.1 mm or less is 0.1 or more by mass. However, the hardening property of flying dust at room temperature tends to be worse than the fine powder of blast furnace slag. If the content of flying dust exceeds 30% by mass, or the content of flying dust is less than blast furnace slag and flying dust with a particle size of 0.1 mm or less When the ratio of the total content is more than 0.75 by mass, the entire hardened slag hardened material is hardened, which is not preferable. Therefore, the content ratio of fly ash is 1.5 to 30 mass%, and the ratio of the content of fly ash to the total content of blast furnace slag and fly ash having a particle size of 0. 1 mm or less is a mass ratio of 0.1 to 0. 7 5. In addition, in the present invention, the ratio of the total content of the premelted and milled slag to the total content of the premelted and milled slag with a particle diameter of 0 · 1 mm or less and the blast furnace with a particle size of 1 · 18 mm or less is made into mass. Better than more than 0.2. If so, the quantitative balance between the amount of metal ions and / or soil metal ions supplied from the pre-melt milling slag and the reactivity S i〇2 in the S i〇2 containing substance can be made more quantitatively balanced. Appropriately cut and improve the crack prevention effect of hardened material. This paper standard uses the Chinese National Standard (CNS) A4 specification (210X297 mm) —— —— ——If— (Please read the precautions on the back before filling this page) Order printed by the Intellectual Property Bureau Employee Consumer Cooperatives -13- 1241997 Μ B7 V. Description of the invention (11) The present invention is to increase the hardness of the hardened product produced and reduce the occurrence of cracks significantly by the combination as described above. Furthermore, at least one selected from the group consisting of oxides, hydroxides, sulfates, and chlorides of alkali metals, and oxides, hydroxides, sulfates, and chlorides of alkaline-earth metals, and the particle diameter is 0. The total amount of blast furnace slag and flying dust below 1 mm should be 0.2 ~ 20% by mass. In addition, at least one selected from the group consisting of naphthalenesulfonic acids and polycarboxylic acids is selected, with respect to blast furnace slag having a particle diameter of 0.1 mm or less, fly ash, and pre-melt-milled slag having a particle diameter of 0.1 mm or less. For a total content, it is also preferable to add 0.1 to 2.0 mass%. At least one selected from the group consisting of oxides, hydroxides, sulfates, and chlorides of alkali metals, and oxides, hydroxides, sulfates, and chlorides of alkaline-earth metals, and added at least 0.2% by mass, It can promote the hardening of the slag hardened material and shorten the time required for curing. However, even if it exceeds 20% by mass, the effect is saturated, so the upper limit is preferably 20% by mass. Preferred examples of such compounds include C a (〇Η) 2, Na〇H, Ca〇, 〇〇３〇〇 4〇 2112〇 and 〇 03〇12, etc., and if naphthalenesulfonic acid and / or polycarboxylic acids are added , It can improve the kneading performance when the raw materials are mixed with water. Therefore, the amount of water necessary for kneading can be reduced, and as a result, a hardened product with higher strength can be obtained. At this time, the added amount is more effective than the total content of 0.1% by mass or more of the blast furnace slag and fly ash having a particle size of 0.1 mm or less, but even if it is added more than 2.0% by mass, the effect is saturated. Therefore, the quality is limited to 0 · 1 ~ 2 · 0 (please read the notes on the back before filling this page). Order the paper size printed by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economic Affairs to apply Chinese National Standard (CNS) A4 specifications ( 210X 297 mm) -14- 1241997 A7 B7 5. The invention description (12)% is better. The naphthalenesulfonic acids are preferably Cell flow 110 manufactured by K & D Fine Chemical Co., Ltd. and Sun flow H-60 manufactured by Sun flow Co., Ltd. Examples of the preferred polycarboxylic acid include Direx Super 200 manufactured by Grace Chemicals and the like. [Examples] Hereinafter, the present invention will be described using examples and comparative examples. A. The composition of the slag used in the pre-melting and milling process and the converter slag is shown in Table 1. (Example 1) Pre-melting and milling slag as a raw material for pulverization, finely pulverized to a blast furnace slag having a particle size of 0. 1 mm or less (specific surface area according to the Brain method 4 0 0 0 cm 2 / g) And Ca (〇Η) 2 were mixed with water to land 3 ~ 25 cm and flow into the frame. After 1 to 2 days, it is demolded and cured in water at 20 ° C to form a hardened product. Table 2 shows the contents, ratios, and added amounts of kneading water of the respective raw materials. Table 3 shows the strength of the obtained hardened product after curing, the surface drying specific gravity, the number of surface crack lines, and the strength after the curing after curing. That is, in Table 3, A, B, C, and D are the numbers showing the compounding ratio of each raw material, and the same is true in the following examples. (Example 2) Pre-melting and milling slag used as a raw material for pulverization, finely pulverized to a blast furnace slag having a particle size of 0. 1 mm or less (according to the ratio table of the Brain method, the paper size applies the Chinese national standard (CNS ) A4 specification {210X297 mm)! Il — (Please read the notes on the back before filling this page) Order printed by the Intellectual Property Bureau Employee Consumer Cooperatives -15- 1241997 A7 B7 V. Description of the invention (13) Area 4000cm2 / g) floating dust (type II of j is standard) and C a (〇Η) 2 are mixed with water to make a drop of 3 to 25 cm and flow into the frame. After 1 to 2 days, the mold was demolded and cured in 20 t of water to form a hardened product. Table 4 and Table 5 show the contents, ratios, and added amounts of kneading water of each raw material. The strengths of the obtained cured products after 28 days of curing, surface specific gravity, number of surface crack lines, and strengths after curing of 91 days are shown in Tables 6 and 7. (Example 3) Pre-milled slag as a raw material for pulverization, finely pulverized to a blast furnace slag having a particle size of 0.1 mm or less (specific surface area according to the Brain method of 4000 cm2 / g), and One part is added with dust (II types of J Γ S specifications), Ca (〇Η) 2 and other additives are mixed with water to make a drop of 3 to 25 cm and flow into the frame. After 1 ~ 2 days, release the mold and cure it in water at 20 ° C to form a hardened product. Table 8, Table 9 and Table 10 show the contents, ratios, and amounts of kneading water of each raw material to be blended. The strengths of the obtained hardened products after curing for 28 days, the specific gravity of the surface drying, the number of surface crack lines, and the strengths after curing for 91 days are shown in Table 1 1, Table 12 and Table 13 at a glance. (Comparative example) The slag, which is a pre-melt and milled slag as a raw material, is finely pulverized to a blast furnace with a particle size of 0.1 mm or less (specific surface area according to the Brain method is 4000 cm2 / g), and a part of Ling Piao ((Please read the notes on the back before filling this page) Order the paper printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives. The paper size is applicable to China National Standard (CNS) A4 (210X29 * 7mm) -16 · 1241997 A7 B7 V. Description of the invention (14) (Please read the notes on the back before filling out this page) JIS specifications II) and C a (〇Η) 2 with the content rate outside the scope of the present invention, to match Water mixes and flows into the box. After 1 to 2 days, it is demolded and cured in water at 20 ° C to form a hardened product. Table 14 shows the content, ratio, and amount of kneading water of each raw material to be blended. Table 15 shows the strength of the obtained cured product after 28 days of curing, the specific gravity of the surface dryness, the number of crack lines on the surface, and the strength after the curing of 91 days. That is, the number of cracks in the examples and comparative examples is the number of lines recorded by visual inspection. The products obtained in the above examples and comparative examples can be summarized as follows if referring to the aforementioned tables. That is, in the pre-melt-milled slag, in Comparative Example 1 in which the content rate of the particles having a particle diameter of 1 · 18 mm or less did not satisfy the conditions of the present invention, the produced slag hardened product had surface cracks after curing on 28 days. For happening 3 lines / cm 2. In addition, the abrasion resistance is also poor, and cracks and defects occur in the hardened material during operation. In contrast, in the examples of the present invention, the surface cracks of any hardened product were 0.5 lines / cm 2 or less, and the cracks became significantly smaller. In addition, the problems of abrasion resistance and cracks and defects during handling did not occur. Specially printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the pre-melting and milling slag is relative to the blast furnace slag with a particle size of 0 · 1 mm, dust, and the pre-melting and milling slag with a particle size of 0 · 425 mm The total mass ratio (the ratio indicated by C in the table) of more than 0.2 is the example of the present invention No. 1—1, 1—3, 1—5, 1—6, 1—8 ~ 1—2 2 ' The number of crack lines of the hardened material is less than 0.4 lines / cm 2, which is a very good result. In addition, the pre-melting and milling treatment of slag is relative to blast furnace slag with a particle size of less than 0.1 mm, fly ash, and the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1241997 A7 _B7 ___ V. Description of the invention (15) and the total mass ratio (the ratio shown by D in the table) of the pre-smelt treatment and smelting below 0 · lnim exceeds 0 · 2 of the present invention example No. 1-9, 1 to 2 1 'The number of crack lines of the hardened material is less than 0 · 3 lines / cm 2. In addition, in the blast furnace slag having a particle size of Q · 1 mm or less, the number of crack lines of the hardened product can be further reduced by adding each of the examples of Example 2 with an appropriate amount of flying dust. In addition, each of the examples of Example 3 to which various additives are added can achieve an increase in strength in addition to reducing cracks in the hardened material. Alas, Comparative Example 4 is a hardened product produced according to the compounding amount and particle size equivalent to the examples described in Japanese Unexamined Patent Publication No. 2-2, 3, 3, 5 and 3, which are caused by the hydration reaction of free Mg 0 after 60 days. And the expansion collapsed. In addition, Comparative Example 6 was produced based on the compounding amount and particle size equivalent to the examples described in Japanese Unexamined Patent Publication No. 10-155 2 3 64, and was caused by a hydration reaction of free Ca 0 after 35 days. Expansion collapse. (Please read the precautions on the back before filling out this page) Order the paper size printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs to apply the Chinese National Standard (CNS) A4 (210X297 mm) -18- 1241997 A7 B7 V. Invention Note (16) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

[1 skimming] Swelling rate (%) 氺 04 cn Chemical composition (mass%) Free-Mg〇r-H CNj C ^ j 〇 \ uo Free-Ca〇r-H CN CO 00 v〇CN Metal Fe cn VO Total Fe 00 r- 00 CNj inch c < \ P2〇5 cn \ 〇CO inch Ab〇3 CNJ cn inch inch Mg〇rir—H y 1 i ο r- S1O2 〇〇m Ca〇cn cn m wn Handling de-Si slag * Pre-treatment de-P slag * Pre-treatment s-smelting check * Converter slag * A Converter slag * B (Please read the notes on the back before filling this page) β National Standard (CNS) A4 specification (210X297 mm) 1241997 V. Description of the invention (" (% ¥ «Series) (% _« stupid) ^ 芩 妾 Η (% _a) (% 3) 伥 _ i5r earthquake « ££ iuui εε οι-βοζ ^ Ήβα-ς CNJ ~ οοπ εε οοι · 7 «inchΌ ιι inch i οι ΤΓ οι ΤΓ

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[I 28: Surface cracks (line / cm2) after atmospheric aging (inch / cm2) inch 〇 inch o cn in inch 〇cn OJ ψ ·· " H o rH 〇i H 〇 ▼ —Η Ο Brown " < Ο ο OQ 〇 o ^ " " 4 Ο 1 " Ή Ο ι—Η 〇 After drying on the 28th, the surface dry proportion is 2.47 2.43 2.42 2.43 2.52 2.57 2.44 2.52 2.58 2.49 2.56 t—H 2.47 2.56 2.59 2.42 2.39 2.54 2.58 2.52 2.56 2.55 | 1S into Γε 矣 1 edge δ m Μ S 缌 cn cn o wo CO OO csj iQ m ON cn vr ^ r < i wn C ^) CM mm into Γε lacquer δ cn Μ cs 03 CO c〇Ό Osl Csl CN CN cn CN ro \ o CN m cn 9 CsJ C < J CO m cn Os Ripening conditions 20 ° C water 20 ° C water | 20 ° C water 1 20 ° C water | 20 ° C water 1 | 20 ° C water 1 20 ° C water 20 ° C water | 20 ° C water 1 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 1 20 ° C water 1 20 ° C water | 20 ° C water 1 | 20 ° C water 1 1 20 ° C water 1 20 ° C water 1 20 ° C water 1 20 ° C water 1 ο | 0.02 1 | 0.04 1 | 0.06 1 | 0.05 1 [0.09 1 L〇AlJ [0.03 | [o.ii 1 | 0.21 1 | 0.27 1 [0.29 Π 1 0.29 1 1_〇 · 54 1 1 0 .54 | 1 0.70 1 1 0.25 1 1 0.22 | | 0.25 1 1 0.36 1 r—Η wn Ο 0.60 1 1 0.09 1 u I 0.27 J 1 Q > 13 J | 0.27 0.18! 0.27 1 1 0-41 1 1 Q -14 J | 0.28 1 1-0.45 J | 0.54 I (0.54 1 LMM 1 0.78 1 1 0.79 1 1 0.88 1 1 0.49 1 | 0.37 1 1 0.52 1 1 0.65 1 1 0.63 1 1 0.69 1 1 0.27 1 PQ 0.56 I 0.29 I r— ^ | 0.39 | | 0.52 1 | 0.70 1 | 0.39 1 | 0.55 I | 0.72 1 0.67 0.69 | 0.72 | 1 0.80 1 「0.82 1 1 0.90] I 0.62 j 1 0.49 1 | 0.67 1 1 0.77 1% ..... s ο 1 0.52 1 < oo 〇o 〇o 〇ooooo ο ο ο 〇〇o ο ο ο ο Example No t < 1 v-H CS cn I < t-H ri 1- H 00 1 i 〇 \ rH 1-10 1 < rH 1 r— < CN 1 rH cn 1 τ—Η 1 τ— (cn 1 '—' & VO 1 1 OO 1 1 1 rH 1 1-22 1 丨 (Sword ammonium persuasion ^^ ^ 鹘 ^^^ said month 〇 + turn over 醻 + down 锲 0 岖 ^ 3〇1〇11〇) / down 鹚 persuade ^ ^ ^ ^ ^ 3 £ 10,000 10 (· & _ί * ^^! Κ ^ Η-ζ $ εες ^ ο + ® 鼷 + 倒 ^ stf ^ H- ^ ems) / Sword Ammonium_ DON · 0]: 0 [(Delete + 铷 ^ lis ^ ir: 1SUI Io @ i / ®il]: V (Please read the notes on the back first Then fill out this page) L ·, * This paper book line scales applicable Chinese National Standard (CNS) A4 size (210X297 mm) 1241997

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7 B V. Description of the invention (19) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs _ An inch inch CO CO CNl CN1 ON cn CO o ON m CN 1—H o β _ H mmppp ON O) Lack of ON ON CN CNJ csi CN CNl CNJ sogsoso § gs ο s 〇S so § S o s § uso No £ 〇X ou S 'g £ o § S' o § S 1¾ P o Different o 穸 O to Τ—Η 5 OO CN r— H p 1 " < 〇5 OO r · < \ * in 1—Ή v〇V / S r— < i / S r " ^ i till _ 11¾ § mooo in 〇〇r-H s 〇 p H 〇〇CN T 一 — S inch— r · 'i vd CN r " " H i—H vd »i 麴 mi 1 wno 7 ε ο B Csl cn CO m ο ο inch o Csl CNl CSI inch inch inch si ! & cn cn ο Ο inch inch omml / Ί Ί ro d ε 7 ε On ON ο cn cn mo OO CTn ON cn T—H cn r- · Ή un f: A _ OO OO OO cn c < \ s inch CN ON 〇 > CN CN csi Jb ε a · ε f-Η 〇O o οο Γ '· -Η οο!' &Quot; " ^ CN CNl f 寸寸 寸 Ό VO 00 1 i 7 ε S ε 〇〇ov 〇r— ^ VO 0 1 '" < wn t —— < \ o r- * 1 — OO οο r- E i £ 〇 ^ o inch inch inch 〇 ΟΝ VO inch un wo un COCO m 卜卜 s ^ f m4 CS1 Οί C \ 1 CM τ—H CO C < 1 OO οο 卜 Csl mi 1 ^ ψ m 麴Oh hm Ph helmet hm Oh hm hm Ph * Sword ammonium Dh S mm PH ii ammonium Oh ammonium 00 ii 逡 〇0 i 逡 C / D helmet ammonium 00 double 00 helmet hm 00 helmet & f bo hm bo helmet m 0 round ; Z; IK csi csi CO C < l CS1 vo csi οο CN: or—H CNl r—H Csl CNl i ..... H csj CO 1- < cs C < 1 1 / Ί r csi (please (Read the notes on the back and fill out this page)

、 TT This paper size applies Chinese National Standard (CMS) A4 specification (210X297mm) -22- 1241997 A7 Β7 V. Description of invention (20) Printed water k apparent mass% of employee cooperatives of Intellectual Property Bureau of the Ministry of Economic Affairs 1) 1_ inch cn r— (cn r—h 1—— 〇V 4 Γ 1 τ- Ή inch ^ Ή 〇! &Quot; io ON τ < inch r—Η 1 '< 〇cn others (apparent mass%) Inch · inch · VO pp τ__ · — VO v〇 v inch · 1 4 τ—Η vn i H Γ Η Η MD f 1 ^ T 1 < 1 Ca (〇H) 2 Ca (〇H) 2 Ca (〇 H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (0H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 Ca (〇H) 2 1 iFlying dust price%) un cK 〇cn CN inch vd Γ 'H σ < 13.0 16.8 τ—H inch · r- * v〇ON i 4 ON 18.2 CSl 1 / S 13.0 blast furnace slag fine powder (mass%) CO i 1 " 4 CNl 〇cn 5 CO cn oo v〇ti 13.0 r—H ON 〇 \ CN 'CN CM OO r · — < Γ ^ ON CN uo 13.0 Pretreated slag * (mass%) 20 to 40 mm CO m inch m csi Csl Csl un un cn cn a Csl 13.2-20 mm inch inch un VO inch inch inch r- inch Inch oo oo inch 5 to 13.2 1 | mm On On i H oo OO OO oo r * oo I '· 1 4 oo r1 " 1 1 < O ο ON On OO 2 ~ 5 mm oo C < 1 CNl VO cn ri cn cn kidney <! > · CO m 1.18 ~ 2 mm inch r- \ om cn m Ό inch inch cn 0.425 ~ 1.18 mm r- ON S τ-1 < < r- r * " H ON 1 " ^ ON f < m 0.1 ~ 0.425mm cn wn cn IT) cn art mr— (cn r— < CO < 'ir— < r- f' < CSl csi 0.1mm 1 or less r- r ··· — r- r- < 1,1 H r 4 r—H r— ^! " i \ i VO ON ON un un i 4 Pre-treatment slag * Type 1 _________ De-P slag * De-P slag * De-P slag * De-P slag * De-P slag * De-s slag * De-P slag * De-P slag * De-Si slag * De-P slag * De-Si slag * De-P slag * De-P slag * De-P slag * De-P slag * De-s slag * Example No 2-16 2-17 2-18 2-19 2-20 2-21 2-22 2-23 2-24 2-25 2-26 2-27 2-28 2-29 2-30 2-31 (Please read the precautions on the back before filling in this page), v " This paper size applies to Chinese national standards (CNS) A4 size (210X297 mm) 23 [241997 A7 B7 V. Invention Description (21 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

[9S 28: Surface cracks after curing in the atmosphere (line / cm2) CN < > | τ H ii 5 t—H Ol i—H -painting ... < 〇o 〇f Ή 28: Surface drying after curing Specific gravity 2.42 2.40 2.38 2.42 2.42 2.48 2.44 2.40 2.36 2,48 2.43 2.45 2.41 2.52 2.48 91 means compression strength after curing (N / mm2) mm 3 〇〇m cn m-cn ^ | lick δ m Μ m cn m 〇〇csr 〇〇CN Csl CM 〇〇Csl OO Ovj \ D οα Ripening conditions 20 ° C water 1 20 ° C water | 20 ° C water | 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 1 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water Q 0.04 0.04 0.04 0.06 0.06 0.09 0.09 0.06 0.06 0.11 0.11 0.27 0.27 0.29 0.08 U 0.13 0.13 0.13 0.27 0.27 0.29 0.29 0.19 0.19 0.28 0.28 0.54 0.54 0.54 0.41 PQ 0.29 0.29 0.29 r-H vn 0.51 0.56 0.56 0.42 0.42 0.55 0.55 0.67 0.67 0.69 0.60 < ο 0.50 0.75 0.33 0.50 0.33 0.67 0.33 0.67 0.33 0.67 0.30 0.73 0.30 0.33 0.70 Example No CN CO 3 vn csi r <) 〇〇csi On csi 2-10 2-11 2-12 2-13 2-1 4 2-15 [(Agull + 埏 麴 ®κ? Αγ: 1εεΙο® @ / delete 囍): V (inverted ammonium li ^ giiK-NK-K1slu ^ 17o + ffiIi + l ^ sw ^ H-zimmIo) / ffl ^ _ * ^ §fffi * NH-ziUIUI ^ s】 a (锲 ^ _i * ^^ ffi ^ iK1EE8n + deletion + sword chain swNiziES t .0) / jianzhiyi ί ammonium κ? αΞίεεοοπ] FREE (please Read the notes on the back before filling in this page) L · The size of the paper is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) 1241997 A7 B7 V. Description of the invention (22) Printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs System [Skid] 28: Surface cracks (line / cm2) after atmospheric aging 〇ο ο ο o 〇ο 〇〇〇o 〇〇ο ο ο 28: Surface dry specific gravity after aging 2.43 2.39 2.53 2.52 2.47 2.39 2.37 2.35 2.56 2.54 2.52 2.42 2.42 2.54 2.54 2.39 Jump stasis δ m Μ S 缌 〇CNJ CN m 〇〇csi v〇m VO CO CO cn Jump test 1 disease δ m Μ IT) cs 2 ON Γ ^ Ι 〇〇 \ o 〇n | v〇CsJ cn CNl CNl Csj cn cn υο On! CNI οα Ripening conditions 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 20 ° C water 1 20 ° C water 20 ° C water 0 VO νη 〇 0.74 0.54 0.54 0.30 0.30 0.30 rH rn 0.30 0.30 0.25 0.25 0.25 0.25 0.30 U 0.79 0.79 0.90 0.79 0.79 0.55 0.54 0.55 0.57 0.56 0.56 0.49 0.49 0.52 0.52 0.54 PQ 0.81 0.81 ι < ON 0.82 0.82 0.66 0.66 0.66 0.72 0.71 0.71 0.62 0.62 0.67 0.67 0.66 0.66 < ι ^ — * 0.70 0.50 0.33 0.67 0.35 0.50 0.65 0.10 0.50 0.65 0.33 0.67 0.33 0.67 0.50 Example No 2-16 2-17 2-18 2-19 2-20 2-21 2-22 2-23 2-24 2-25 2-26 2-27 2-28 2- 29 2-30 2-31 丨 § Ammonium persuasion ^^ ίί ^^:-τ: 1 * εεΙΌ + 鼷 鼷 + 埏 锲 cking ΙΠΕ ^ κ-ΞίαΙειο) / Sword ammonium scraping ^^ ίβ ^ κ-κιεειοα (Sword Ammonium Reward _wffi * NH-K1sesqo + deletion + country §sffi * N ± ^ SSIo) / Jian Caro advises «Donium Ammonium® ^ h-^ _ is2】: 3 (Please read the precautions on the back before filling this page ), Setting line * This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) _ 5 1241997 A7 B7 V. Description of invention (23) CM inch CO y CO printed by employee consumer cooperative of Intellectual Property Bureau of Ministry of Economic Affairs 1 i r- ^ C < 1 m 1—ί cn 1 < Γ1 · — mr—H 1 i two m cn v—4 un f mp S p S Μ ft QX: CNl o CJ Q rsl g Q CN oo u O £ CNl ό 3 Q CN ό u ρ r " »H oo υη p S r H 〇S os CTn un S vn vvq CN t—H h cn 〇MD 'AX ο ο £ ox: 〇X: 9 X o S 'o X o £ o £ o £ oso X 〇X 〇 丨 S o 1 £ o rsj £ o £ o I 〇m art_ 1 »ο 〇ο O oo 〇o 〇un r—H i2 tn i H mr-H JO 〇〇〇〇O 〇〇 翅 φ _1 fe »〇 >, 1 i 〇 \ 1-H σ > 〇 \ ON t-H 2 ON 1 (ON 1 < 2 rH in t-H in ^ H υη un r1 * i 03 f m4 CN CNJ fH CN CNJ Csl ^ —4 S ε inch inch inch inch inch inch inch inch 〇〇〇O o inch inch inch inch. Inch inch i μ J 1-1 ΓΝΙ m wn wn m un CO m wn o 〇〇oo un un to m tn _ hmw ε 7 ε cn iimr—H cn 1 < m V " '< rH m r-Ή cn 1-—i cn r—H m τ H ooooo < r ^ ii cn f '· 4 m < cn 1— (CO r—H cn t " <? ε rsl £ S s 〇OO 〇O 〇〇ε February 2 inch 2 inch OO oo t < oo T— < OO OO t— < inch inch inch inch inch 1— (7 e un c 〇 2 RR On a \ ON as ON oe ^ e — ° · 1 WO m U ^) vn wn On On On 〇 \ ON ON CN as rsj ON CNl ON rsl ON CNl ON csi I Η-S ^ CNl CO Oi Cvl r < i oa ro csi 04 C < 1 CNl CNl 2 2 mil persuaded mf R 埏 mmb〇 sword co paper m double b〇 paper m and m paper hmb〇gk 00 helmet ii t in paper h 鹚 oo helmet h installed 00 paper km 00 helmet k installed 00 installed h installed un helmet h 逡00 helmet M m 00 g 埏 逡 00 helmet mm 〇0 M m oo helmet mm ϋ〇m wear 1 1 i cn rn cn cn ^ j " ΓΟ wn CO \ 〇cn OO cn as CO o cn r-—ί r * H cA C ^ 3 cn m 4 cn cn v〇CO v〇r- ^ cA cn OO cn 2 cn cn (Please read the precautions on the back before filling out this page), 11-line one-paper size applies to Chinese national standards ( CNS) A4 specification (210 X 297 mm) 1241997 A7 B7 V. Description of invention (24) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs m ^ General _ -IK cn m ψ1, mi m cn inch cn cn inch wo CO mmmm 1 < m 2 2 mm vn pp vn p 1 1 i vn 〇 i '< s 〇O o QX C < 1 Q DC Q x CN 〇CN Q CO 〇 £ CN Q x CN o £ CS 〇 £ CN 〇 £ csi Μ _ 鼷gg 〇3 U gg ό oo CJ gs OOOO: OO gs U CN 1 < 〇r—H Ψ i O \ oo OJ r H cn c5 ό O t < < 1 < 1—H o OJ ^ — 4 CS inch O inch 9 rg £ o £ o rN so ΓΜ S 'o £ o £ 〇 £ o X o X 9 i O £ o CM so £ o | osooso £ 〇u δδ O 〇〇O 〇〇 Inch inch Inch inch Inch inch Inch inch Inch inch! G 岖 φ _i fe ^ CN * < OJ r—H r < i γ · Η 04 CNl ψ < oa r—H 〇〇oo oo oo oo oo oo oo oo oo oo oo OO Guide B ο B Csl Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch A _ S —CSJ in mm wn wn CO cn W ^ i in cn un VO wn _ ft h END mmr ^ iw ε 7 ε cn 1— ^ cn cn cn 1 < cn 1 < cn cn i1 im on 1 < on f · < cn t— * m V < m 1 (mr— < cn rH cn r _H cn \ < CO 1—H cn r—H mr · 岣 cs E 〇1— 4 〇O 〇〇〇〇〇〇 〇〇O 〇〇〇〇〇〇 〇〇1 February Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch Inch 0.425-1.1 8mm ON ON ON ON ON ON ON ON ON ON ON ON ON os ON On 〇 \ ON ON ON as ε? E 〇g ON csi Os Csl ON Csl a ON CN ON rs) ON Ol o ΓΝΙ Os rsi Os rsi ON CNl 〇 \ CS) Os CNl On CN ON Cs) a ON csl ON rsi i ^ 3 ^ 2 2 inch r—H inch 2 2 inch 2 inch twist ΓΓΜΐ Kan m ψ mm M twist g: 鹚 00 Note mm 00 Po hm cn mm 〇〇cn m li Ammonium & gkm PU m ll g Helmet m Oh 逡 PH 莛 km CL, helmet km PU gmm PLh 1¾ Jun cu m 黎 (X (li 〇〇Lh M 逡 Oh note Μ m Oh km PL, helmet m) f— < CSI cn CNl CN cn cn CN cn cA in Oi cn v〇CN cn cn 00 01 cn ON 04 cn cn m rn CNl m cA cn CO CO cn CO rn m cn cn cn OO cn cn 〇 \ m cA o (Please read the notes on the back before filling (This page) -1 #.

, TT line < This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -27- 1241997 A7 7 Β V. Description of invention (25) Printed by the Consumers ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 1 | _ 1¾ mm 2 cn inch-t—H ON II-ON so 〇o S 〇O 2 so O oso O c5 s 〇ο 1 11 < 〇 OJ 1 H OJ CN | 一 Ol _ Sao 5 us U yy y 〇 00 (S 2: O LQ cS o GO up to 〇 LQ (¾ increase km increase * i worry 1 k CN r— * inch · CN r—- «CN r < inch · t 1 p < N p Οί 〇 £ oso S 'o will o £ ou 1 £ oso rsi £ o X 〇 soso £ U £ ο s ο delete_ »Inch inch inch inch inch inch inch inch inch inch inch inch inch inch inch 蕤 oz M 〇〇〇〇〇〇oo oo OO oo oo oo oo ON oo oo 〇v oo oo 〇T s £ £ inch inch inch inch inch inch inch inch inch inch inch inch inch inch rn ε ε uo to l / Ί υη CTi m υη un IT) un wn un ΙΟ _ 'w ^ & To mil m κ CM CO B ε m < mm cn cn cn cn m cn cn cn cn 1 cn cn cn un £ e O o ο OOO ο OOOOO ο ο ώ ψ · ies CNI Inch Inch Inch Inch Inch Inch Inch Inch 2 Inch Inch Inch Inch rir 1 H l BM o On ON 〇 \ ON σ > ON o ο On 2 ON ON Inch ON B i B — 〇 ^ oa ON CSI a 〇 \ C < i O CNl a On CSI ON ΓνΙ On 03 On ro aa ε £, (o inch inch inch CN 2 CN inch 1 is called ammonium rrriJ, m 鹋 vimij W h sword g * sword 逡 Ph mm mm Dh h h Ph k 鹚 Oh hm PU M 鹚 C1h helmet m twisted Dh ammonium cu 莛 hm Ph helmet kmb〇 helmet hm PU mmgg M double 00 mg for hm Ph paper m shirt Γ < rn cn cn cn CO cA wear cn On cn cn r called un C ^) 〇n | υη CO κ cA cn $ cA V〇IT) cn 0S-J3dns Xals ^ a (^) sls) lu9q3 820 (Please read the precautions on the back before filling out this page) β-" Γ This Paper size applies Chinese National Standard (CNS) A4 (210X297 mm) -28- 1241997 A7 B7 V. Description of invention (26) Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs

〔Ϊ Is 脃 N ^ Z: mifi K D3 inch · inch 0 inch 0 inch · inch o inch · 0 inch · inch 0O y Μ Ο ο 2 r— ^ o O ο OOOO biliary surgery m ^ CO υη rH ΙΓί OJ CO m oi K CN o4 ΙΤ) Οί mm oi rsi un OJ r4 〇4 cn οί cn Oi C < l 汔 oi OJ mm Η E〇CN OO CS surface * N a Your Ts, the more δ ΕΠ Μ un CN Yi delg IQ ο cn on CS CO You Γε Add δ m Μ Ying 缌 m CM CNl OJ CN ΓΟ m cn aa ΡΪ CN t: climb 0. . . P P s * fr sends 0. Ugly 〇◦ P fl- P Ugly 〇. 〇. 〇〇P Issue PP IsoPP PPP • fr PQS 〇S 〇sogosog ο g 〇 g 〇go 〇S C5 O oso ο $ ο ο ο cn o 〇inch 'O' U CSI 〇〇Ό CS | o Lingo Lingo No ο ο Csl 〇o 〇〇oo ri c5 ο 〇〇ο ο CZ5 〇〇o OO o 〇〇C) PQ οααυο 〇 CN m 〇ro wn o K oo ο κ CD CNJ vn oo Product · Η m ίΤΪ ο o 〇ο OO OO OO c5 5S 〇S5 oso OO o < ο ο 〇〇o c5 8 o 8 o 8 ο C5 oooo 〇 沄 ο cS O ο 8 ο 8 O so 8 O 8 O §: ηη bond : Z ； * τ—Η CO CSI cn cn cn c0 CO OO cA CTN 〇cn, 丨 丨 _ < cn CN cA cn cA ^ sf cn ν〇ι 4 cn cA f H cn OO rn Os r · < cA cA (Sword 逡 scratch «钃 鹚 lK * hJH-r: 1SJn + delete il + ^ ®s» * Niy: 1UIUlro) / l ^ ®li ^^ ffi ^ izieE8rnii (Please read the precautions on the back before filling this page), Threading < This paper size applies to China National Standard (CNS) A4 (210X297 mm) 1241997 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (27) [STS 28: Surface after atmospheric curing Crack (line / cm2) 〇ο ο ο ο ο ο oooooooo 〇oo 〇28 surface after curing | drying specific gravity 2.57 2.59 2.58 2.57 2.54 2.53 2.48 2.47 2.44 i 1 1 2.48 2.47 2.48 2.49 2.47 un CN 2.43 2.44 m CN 91 means compression strength after curing ( N / mm2) cn m 03 a cn OO cn OO m r < im Oi cn OO mri paper full | advance Γε stasis δ m Μ rsi Cvl CNl 04 a ΟΟ Ο οα CSJ CN CN < 〇oa ID CSI CNl m CN ripening Condition 1 20 ° C water 1 20 ° C water 20 ° C water 1 20 ° C water 1 1 20 ° C water 1 20 ° C water 1 20 ° C water 1 1 20 ° C water 1 | 20 ° C water 1 | 20 ° C water 1 20 ° C water 1 | 20 ° C water 1 | 20 ° C water 1 20 ° C water 20 ° C water 20 ° C water 1 20t: water \ 20 ° C water | 20 ° C water '| 2 (Q in water Q 0.54 1 0.54 1 0.54 1 0.54 丨 1 0.54 1 0.54 1 0.54 1 1 Q > 54 1 | 0.54 1 丨 ... Naming. 1 1 〇 > 54 1 L—0.54 1 1 0.54 IL〇.54 1 1 0.54 1 1 0-54 1 I 0.54Π 0.54! UI 0.78 1 0.78 0.78 I 0.78 I 1 0.78 1 1 0.78 1 1 0.78 1 0.78 | 0.78 1 | 0.78 1 | 0.78 1 | 0.78 1 | 0.78 | | 0.78 1 [0.78 1 1 0.78] 1 0.78 1 | 0.78 1 0.78 I 0.78 PQ oq ψ '< oq 0.81 1 0.81 1 ΟΟ Ο 1 0.81 1 1 0.81 I | 0.81 | | 0.81 | | 0.81 | | 0.81 | | 0.81 1 | 0.81 | | 0.81 | | 0.81 | Γα8ΐ 1 | 0.81 | 1 0.81 | 0.81! § < Ο Ο ο ο ο ο 0.33 0.3 』0.331 0.33 033 0.33 0.33 0.33 0.33 0.33 0.33 \ 033] 0.33 | 〇.33j Example No 3-21 3-22 3-23 3-24 3- 25 3-26 3-27 3-28 I 3-29 I | 3-30 I 3-31 | 3-32] | 3-33 | 1 3-34 1 1 1 | 3-36! 3-37! 3 -38! 3-39! 3-40 '[(Delete art + sword 鹚 _wN ± y: 1esrosg / «i (Please read the precautions on the back before filling this page) The paper size of the paper is applicable to Chinese national standards (CNS ) A4 specification (210X297 mm) 1241997 A7 B7 V. Invention description (28 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [ε TS Surface cracks (line / cm2) after 28 days of atmospheric curing] 〇〇o ο ο ο ο O ο ο inch · 〇O inch · 〇〇28 means the surface dry proportion after aging 2.45 2.45 2.48 2.49 2.46 2.45 2.50 2.47 2.44 2.43 2.54 2.46 2.47 2.54 2.46 2.47 Noodles ^ 鹚 i 琴 1 Ui δ m Μ mf Ή 〇 〇ζ } IQ in mm cn cn ζ} m check 1 ^ | check δ HI Μ vn CNl ΓΟ CO ΓΝ) un OJ cn C < i Osl Csl m CN Csl OO 04 wn CNl CN OO CO Ripening conditions 20 ° C water 1 20 ° C water | 20 ° C water | 20 ° C water 20 ° C water 20 ° C water 20 ° C water f 20 ° C water P 20 ° C water 1 20 ° C water 20 ° C water 20 ° C water 1 20 ° C water 20 ° C water 20 ° C water 20 ° C water Q 0.54 0.54 0.54 0.54 0.54 0.54 0.54 0.54 0.54 0.54 0.54 0.09 0.54 0.54 0.09 ^ 5iJ 0.54 U 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.78 0.26 0.78 0.78 0.26 0.78 0.78 PQ f—H 丨 oq CO oo 0.81 0.81 0.81 1 0.81 0.81 0.81 0.52 1 f-H OO 0.52 0.81 | Sun < oo < | 33.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.00 0.33 0.33 0.00 0.33 0.33 Example No 3-41 3-42 3-43 3-44 3 -45 3-46 3-47 3-48 3-49 3-50 3-51 3-52 3-53 3-54 3-55 3-56 [(side 鼷 + inverted ss »^ ir: 1serosfe!) / Ss < (劁 ^ _ίΜ ^ §ί! Κ ^ Η-τ: 1εες ^ Ό + ®ϋ + 乡 锲 缨 w ^ i ^ SUIIo) / Inverted ammonium «^^ κ ^ Η-ζίεες ^ οϋ (Sword ammonium Persuasion: 纗 ammonium 鹛:? ^^ 1.1 + turn || + Sword 锲 赃:? ^ 1 $ Yueyue 0) / Jianzhi _ «^ 逡 1 £ ^; 0: 1 Yueyue 001.1] · ^ (Please read the precautions on the back before filling this page) The paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) 1241997 A7

7 B V. Description of the invention (29) Printed water of the consumer cooperative of employees of the Intellectual Property Bureau of the Ministry of Economic Affairs (apparent mass%) CO m T 1—Η r— ^ V < Others (appearance quality%) inch · inch · 1 OO 1 inch Ca (〇H) 2 Ca (0H) 2 Ca (〇H) 2 1 Ca (〇H) 2 1 Ca (〇H) 2 Floating dust price%) o ο oooo Blast furnace slag fine powder (mass%) Inch CSJ OO OO inch 2 _ 1¾ i 鹚 20 ～ 40 mm cn inch inch OO OO 13.2-20 mm cn to CSl CN] oo 5-13.2 mm to ro 〇 〇OO OO 2 ~ 5 mm r—4 m CO m csl 1.18 ~ 2mm inch f… [> > r- m 0.425-1. 18mm \ o inch un 0.1 ～ 0.425mm factory 1 CS1 Csl Csl CM CN 0.1mm or less om ΓΝΐ ro o 〇 inch inch steel slag * preparation P-slag removal * Pre-treatment S-slag removal * P-slag removal P-treatment * Converter slag A Converter slag A Converter slag B Converter slag B Comparative example No T " Η CN cn inch m (Please read first Note on the back, please fill in this page again) Alignment-This paper size applies the Chinese National Standard (CMS) A4 specification (210X297 mm) -32- 1241997

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9S ^ .0 060 § 0 06Ό so s § so 0 § so 9 9 § es 69Ό 69Ό 0 Order 33 1241997 A7 B7 V. Description of the invention (31) Industrial availability as described above according to the present invention, even if The use of steelmaking slags that have previously had problems in their use also makes it possible to obtain slag hardened products with high strength and almost no cracks in the surface layer. This slag hardened material can be used as a road material, a civil engineering material, an artificial stone, a marine hard block, or other concrete substitutes. Therefore, the present invention is particularly helpful for the reuse of resources and the improvement of the environment. (Please read the notes on the back before filling this page) L # Order Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -34- This paper size applies to China National Standard (CNS) A4 (210X297 mm)

Claims (1)

A8 B8 C8 D8 1241997 i. Patent application scope 1 · A method for manufacturing a slag hardened product, which includes (a) a pre-melted milling slag containing (a) a particle size of i · 18 mm or less: 15 to 55% by mass, and (B) Blast furnace slag having a particle size of 0.1 mm or less: 5 to 40% by mass of a substance, which is hardened after being mixed with water. 2 · A method for producing a slag hardened product, which comprises (a) a pre-melt-milled slag having a particle size of 1 · 18 mm or less: 15 to 55% by mass, and (b) a particle size of 0.1 mm 1 ~ 0. 7 The following blast furnace slags: 3 ~ 36 mass%, and (c) pupae: 1 · 5 ~ 30 mass% and the mass ratio of puff dust to the total of the blast furnace slag and pupae is 0.1 ~ 0.7. The substance of 5 is hardened after being mixed with water. 3. The method for manufacturing a slag hardened product as described in item 1 or 2 of the scope of patent application, wherein (a) the particle size of the pre-melt-milled slag having a particle size of 1 · 18 mm or less, and (b) the particle size The mass ratio of the slag of the blast furnace below 0.1 mm and the total slag of the pre-melting mill treated by (c) flying dust is more than 0.2. 4 · A method for producing a slag hardened product, which comprises the oxides, hydroxides, sulfates, and chlorides of alkali metals, and _ earth in the content described in item 1 or 2 of the scope of patent application. At least one kind is selected from the group consisting of oxides, hydroxides, sulfates and chlorides of metals, and 0.2 to 20% by mass is added to the total of the blast furnace slag and flying dust. 5 · —A method for manufacturing slag hardened products, which is applicable to the Chinese standard (CNS) A4 size (210X 297 mm) of the paper size for patent application (please read the note on the back before filling this page) ) Order line printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1241997 Printed by the Employee Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 6. Included in the content listed in item 1 or 2 of the scope of patent application, and then naphthalene At least one kind is selected from the group consisting of sulfonic acids and polycarboxylic acids, and 0.1 to 2.0% by mass is added to the total of the blast furnace slag, fly ash, and pre-dissolved milling slag having a particle size of 0.1 mm or less. (Please read the notes on the back before filling this page) This paper size applies to the Chinese National Standard (CNS) A4 (210X297 mm) -36- Attachment No. 90106801 Patent Application Chinese Specification Revision Page Republic of 1993 7 Application Date Q0 & ^ Π Case No. QOIORaOl Category ί Μη (the above are filled out by this Council) Yun | Patent specification Chinese slag hardened material manufacturing method Invention new name English METHOD FOR PRODUCING HARDENED SLAG PRODUCT First name Nationality Hiroshi male Hisami Shigeki Matsushige Takamatsu (1) (2) (3) (1) Chiba, Japan Prefecture Kawasaki Ichibanchi Institute of Technology, Chuo-ku, Chiba City, Chiba Prefecture ♦ Imagination Invention / Residence, Residence (2) Japan Kawasaki Ichibanchi Institute of Technology, Kawasaki-cho, Chiba City, Chiba Prefecture, Japan (3) Japan Institute of Technology, Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture, Japan. Name (name) (1) JFE Iron Co., Ltd. Printed by the Bureau ’s Consumer Cooperatives ^ Nationality Residence, Domicile (Office) Name of Representative (1) Japan (1) No. 3, Komachi-cho, Chiyoda-ku, Tokyo, Japan National Standards (CNS) (2) 0 > (297 mm)