High-activity conductive steel slag composite activator, preparation method and application thereof

Abstract

The application belongs to the technical field of solid waste utilization, and discloses a high-activity conductive steel slag composite activator, a preparation method and application, which comprises the following components in parts by mass: polyol amine 0.6-1 part, polyol 2-4 parts, sodium citrate 0.8-1.2 parts, calcium oxalate 1-1.5 parts, silica ash 0.2-0.6 parts, and carbon nanotube array 0.05-0.1 part; the polyol amine comprises glycerol, triethanolamine, diisopropyl alcohol amine and triisopropyl alcohol amine; and the polyol is ethylene glycol. The polyol amine, the polyol, the sodium citrate, the calcium oxalate, the silica ash and the carbon nanotube array are mixed in parts by mass; and the mixture is subjected to magnetic stirring for 10 hours. The application has obvious improvement effect on the conductivity of steel slag cement, and the carbon nanotube array reduces the resistivity, which is beneficial to the health monitoring of soil and the active alarm of concrete diseases. The application has lower cost, rationally utilizes waste resources, and is beneficial to the ecological environment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of solid waste utilization, and particularly relates to a high-activity conductive steel slag composite activator, a preparation method and application. BACKGROUND

[0002] Steel slag is mainly waste in the production of steel, China is a big country of steel production, and about 10% to 12% of the steel production is steel slag per year. If the steel slag cannot be treated in time, a large amount of accumulated steel slag will occupy land and cause environmental pollution. The chemical composition of steel slag mainly includes CaO, SiO2, Al2O3, Fe2O3, FeO, MgO, MnO, etc., and has cementitious properties, mainly because it contains some minerals similar to cement clinker, such as C3S, C2S and ferric aluminate. However, the content is generally less than that in cement clinker, and the crystal is larger, more complete and lower in activity. Therefore, selecting a suitable process to activate the steel slag and reduce its stability can be used as a cement filler and applied to the preparation of concrete process. The activation of steel slag is mainly divided into physical activation and chemical activation. Physical activation, also known as mechanical activation, mainly improves the fineness of steel slag through mechanical methods, thereby improving the activity of steel slag. Chemical activation is divided into acid activation and alkali activation, and the most commonly used is alkali activation. Although alkali activation improves the activity of steel slag to some extent, it also causes alkali-aggregate reaction. In addition, the current development is to add conductive materials to concrete to prepare conductive concrete. Conductive concrete is a composite material with conductive, electrothermal, electromagnetic shielding and other properties or functions, and has broad application prospects in the fields of road snow melting and ice melting, electrical equipment grounding, structural health monitoring and electromagnetic shielding. The common method is to mix conductive materials such as carbon fiber, carbon black or metal fiber into concrete to give the concrete conductivity. This technology is widely used in the manufacture of antistatic floor or concrete with functions such as induction heating and deicing. Therefore, developing a high-activity conductive steel slag composite activator has become a trend.

[0003] Technical problems existing in the prior art:

[0004] 1) Balance between conductive performance and mechanical strength: Adding too much conductive material will reduce the mechanical strength of the concrete. Finding a balance point that maintains the mechanical strength of the concrete while improving its conductive performance is a challenge.

[0005] 2) Dispersion and uniformity: The dispersion and uniformity of conductive materials in concrete have a significant impact on conductive performance. Non-uniform distribution leads to inconsistent conductive performance, affecting the performance of the final product.

[0006] 3) Long-term durability: During long-term use, the conductive materials in the concrete may degrade due to environmental factors such as humidity and temperature changes, affecting the conductive performance and structural integrity of the concrete. SUMMARY

[0007] In view of the problems existing in the prior art, the application provides a high-activity conductive steel slag composite activator, a preparation method and application thereof.

[0008] The application is achieved in the following manner. The high-activity conductive steel slag composite activator comprises, by mass fraction, 0.6-1 parts of a polyhydric alcohol amine, 2-4 parts of a polyhydric alcohol, 0.8-1.2 parts of sodium citrate, 1-1.5 parts of calcium oxalate, 0.2-0.6 parts of silica fume and 0.05-0.1 parts of carbon nanotube arrays.

[0009] Further, the polyhydric alcohol amine comprises glycerol, triethanolamine, diisopropanolamine and triisopropanolamine.

[0010] Further, the polyhydric alcohol is ethylene glycol.

[0011] Another object of the application is to provide a preparation method of the high-activity conductive steel slag composite activator.

[0012] Step 1, mixing the polyhydric alcohol amine, the polyhydric alcohol, the sodium citrate, the calcium oxalate, the silica fume and the carbon nanotube arrays according to mass fraction;

[0013] Step 2, stirring the mixture by magnetic force for 10 hours to obtain the high-activity conductive steel slag composite activator.

[0014] Another object of the application is to provide an application of the high-activity conductive steel slag composite activator in steel slag cement.

[0015] Another object of the application is to provide an application method of the high-activity conductive steel slag composite activator in steel slag cement.

[0016] Step 1, mixing the prepared high-activity conductive steel slag composite activator with steel slag powder and putting them into a ball mill to mix uniformly to obtain a modified steel slag material;

[0017] Step 2, mixing the modified steel slag material and cement at a ratio of 3:7 and curing them in a water sample environment at 25 DEG C for 28 days to detect the compressive strength of the mixture.

[0018] In combination with the above technical solutions and solved technical problems, the technical solution to be protected by the application has the following advantages and positive effects:

[0019] First, the high-activity conductive steel slag activator of the present application has a significant improvement effect on the electrical conductivity of steel slag cement. The incorporation of carbon nanotube arrays leads to a decrease in resistivity, which is beneficial for soil health monitoring and active alarm of concrete diseases. Moreover, this method has a lower cost than standard cement while having little difference in compressive strength, making rational use of waste resources and being beneficial to the ecological environment.

[0020] In the present application, polyol amine and polyol can improve the grinding property and promote the hydration reaction of steel slag powder. Sodium citrate increases the content of hydrated calcium silicate gel in the reaction product, and has a good enhancing effect on the activity of steel slag; calcium oxalate can provide high-activity Ca 2+ , participate in the reaction of clinker, and can improve the activity index and stability of steel slag; silica ash can fill the pores between particles, and at the same time generate gel with hydration products, increasing the strength; carbon nanotube arrays can generate a three-dimensional conductive network, which is uniformly distributed in the steel slag powder, promoting the connection between them, not only providing conductive ability, but also generating cementitious material C-S-H which is beneficial to improve the activity of steel slag.

[0021] Second, the present application makes full use of the value of steel slag itself, and formulates cement according to its good electrical conductivity, which improves the problems of low activity, low compressive strength, small hardness and poor wear resistance. The present application is applied to building materials, construction and road engineering, and has important research significance in health monitoring and active alarm of soil diseases.

[0022] Third, the creativity of the claims of the present application is also reflected in the following important aspects:

[0023] (1) The expected income and commercial value of the technical scheme of the present application after transformation are:

[0024] The new activator of the present application has a significant improvement effect on the electrical conductivity of steel slag cement, which is beneficial for soil health monitoring and active alarm of concrete diseases. Moreover, this method has a lower cost than standard cement while having little difference in compressive strength, making rational use of waste resources and being beneficial to the ecological environment.

[0025] The present application improves the hydration activity of steel slag powder and reduces its stability. In solving the application of steel slag, it also effectively reduces the cost and CO2 emission of cement enterprises.

[0026] Fourth, the research and application of high-activity conductive steel slag composite activator have brought the following significant technical progress:

[0027] 1) Improve the electrical conductivity: adding carbon nanotube arrays as conductive enhancer, which significantly improves the electrical conductivity of the composite material. Carbon nanotubes have excellent electrical conductivity, which significantly improves the performance of steel slag composite activator in terms of electrical conductivity, and is suitable for special environments or applications that require electrical conductivity.

[0028] 2) Enhanced Activity: The addition of polyol amines and polyols enhances the chemical activity of the steel slag, thereby improving its effectiveness in concrete or other construction materials. The addition of these chemical components helps to promote the activation of useful ingredients in the steel slag, allowing it to participate more effectively in chemical reactions.

[0029] 3) Improved Processability: The addition of sodium citrate and calcium oxalate improves the processability of the activator. These additives are able to adjust the rheological properties of the composite activator, making it easier to process and apply in different industrial applications.

[0030] 4) Environmental Friendliness: The use of silica fume improves the environmental friendliness of the activator. As an industrial byproduct, the use of silica fume in the activator helps to recycle waste and reduces the burden on the environment.

[0031] 5) Cost-Effectiveness: The formulation of the composite activator takes into account the balance between cost and performance. The use of raw materials is relatively easy to obtain and has moderate costs, making the activator have good economic benefits while maintaining high performance.

[0032] The high-activity conductive steel slag composite activator of the present invention has made significant progress in improving conductive performance, enhancing activity, improving processability, and environmental friendliness, while maintaining good cost-effectiveness, suitable for modern construction materials and other industrial applications. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0034] Figure 1 is a preparation method flow chart of the high-activity conductive steel slag composite activator provided by the embodiments of the present application;

[0035] Figure 2 is a method flow chart of the application of the high-activity conductive steel slag composite activator provided by the embodiments of the present application in steel slag cement. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application with embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0037] Based on the high-activity electrically conductive steel slag composite activator, the following are two specific examples and their specific implementation schemes:

[0038] Example 1: Production of Electrically Conductive Concrete

[0039] 1) Preparation of Formulation:

[0040] Prepare polyol amines (such as glycerol, triethanolamine), ethylene glycol, sodium citrate, calcium oxalate, silica fume, and carbon nanotube arrays according to mass ratio.

[0041] 2) Mixing and Activation:

[0042] Mix the prepared raw materials in proportion to prepare the high-activity electrically conductive steel slag composite activator.

[0043] Add this activator to the concrete ingredients, mix with cement, sand, gravel, etc., to prepare electrically conductive concrete.

[0044] 3) Application and Testing:

[0045] Use the electrically conductive concrete for road or building construction in specific engineering projects.

[0046] Test the electrical conductivity and mechanical strength of the concrete after construction to ensure that it meets the expected standards.

[0047] Example 2: Development of Antistatic Floor Material

[0048] 1) Material Preparation:

[0049] Prepare the components of the high-activity electrically conductive steel slag composite activator according to the specified proportions, including polyol amines, ethylene glycol, sodium citrate, calcium oxalate, silica fume, and carbon nanotube arrays.

[0050] 2) Preparation and Mixing of Activator:

[0051] Mix all raw materials in proportion to prepare the high-activity electrically conductive activator.

[0052] Add the prepared activator to the manufacturing process of the floor material and mix it with other components such as resin.

[0053] 3) Production and Application of Floor Material:

[0054] Use the mixed materials to manufacture antistatic floors through pressing or casting processes.

[0055] Lay the antistatic or conductive floor in places where it is needed (such as hospitals, computer rooms, etc.).

[0056] Test the electrical conductivity and durability of the laid floor to ensure that it meets safety and use standards.

[0057] The two embodiments show the application potential of the high-activity conductive steel slag composite activator in different fields, which can not only improve the conductive performance of concrete and floor materials, but also maintain other necessary physical properties of the materials, and is suitable for various industrial and civil occasions.

[0058] In view of the problems in the prior art, the application provides a high-activity conductive steel slag composite activator, a preparation method and application thereof.

[0059] The high-activity conductive steel slag composite activator provided by the embodiment of the application comprises the following components in parts by mass: polyol amine 0.6-1 part, polyol 2-4 parts, sodium citrate 0.8-1.2 parts, calcium oxalate 1-1.5 parts, silica ash 0.2-0.6 parts, and carbon nanotube array 0.05-0.1 part.

[0060] The polyol amine comprises glycerol, triethanolamine, diisopropanolamine and triisopropanolamine; and the polyol is ethylene glycol.

[0061] As shown in the figure, the preparation method of the high-activity conductive steel slag composite activator provided by the embodiment of the application comprises the following steps: Figure 1

[0062] S101, mixing polyol amine, polyol, sodium citrate, calcium oxalate, silica ash and carbon nanotube array according to mass parts;

[0063] S102, stirring the mixture by magnetic force for 10 hours to obtain the high-activity conductive steel slag composite activator. Figure 2 As shown in the figure, the application method of the high-activity conductive steel slag composite activator in steel slag cement provided by the embodiment of the application comprises the following steps:

[0064] S201, mixing the prepared high-activity conductive steel slag composite activator with steel slag powder and putting them into a ball mill to mix uniformly to obtain a modified steel slag material;

[0065] S202, mixing the modified steel slag material and cement at a ratio of 3:7, curing them in a water-like environment at 25 DEG C for 28 days, and detecting the compressive strength of the mixture.

[0066] According to the test standard of GB / T17671-1999, the modified steel slag material and cement are mixed at a ratio of 3:7, cured in a water-like environment at 25 DEG C for 28 days, and the compressive strength can reach 90.8% of that of standard cement.

[0067] ​Polyol amine and polyol can improve the grinding property and promote the hydration reaction of steel slag powder. Sodium citrate increases the content of hydrated calcium silicate gel in the reaction product, and has a good effect on the activity of steel slag; calcium oxalate can provide high activity Ca 2+ , participate in the reaction of clinker, and can improve the activity index and stability of steel slag; silica fume can fill the pores between particles, and generate gel with hydration products to increase strength; carbon nanotube array can generate a three-dimensional conductive network, which is uniformly distributed in steel slag powder, promotes connection between them, not only provides conductive ability, but also generates cementitious material C-S-H which is beneficial to improve the activity of steel slag.

[0068] Example 1

[0069] A composite steel slag activator, according to the mass fraction, polyol amine 0.6 parts, polyol 2 parts, sodium citrate 0.8 parts, calcium oxalate 1 part, silica fume 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature magnetic stirring for 10 hours, then ball milling with steel slag powder to get the activated steel slag material. According to GB / T17671-1999 test standard, the alkali activated steel slag material and cement are mixed in the proportion of 3:7, and cured in water sample environment at 25℃ for 28 days, the activity index can reach 86.4% of standard cement, and the stability is 2mm according to GB / T1346-2011 Lea clamp test standard.

[0070] Example 2

[0071] A composite steel slag activator, according to the mass fraction, polyol amine 0.8 parts, polyol 2 parts, sodium citrate 0.8 parts, calcium oxalate 1 part, silica fume 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature magnetic stirring for 10 hours, then ball milling with steel slag powder to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, and cured in water sample environment at 25℃ for 28 days, the activity index can reach 88.1% of standard cement, and the stability is 2mm according to GB / T1346-2011 Lea clamp test standard.

[0072] Example 3

[0073] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 2 parts, sodium citrate 0.8 parts, calcium oxalate 1 part, silica ash 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing for 28 days in 25℃ water sample environment, the activity index can reach 88.4% of standard cement, according to GB / T1346-2011 in the Lei's clamp test standard, the stability is 2mm.

[0074] Example 4

[0075] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 0.8 parts, calcium oxalate 1 part, silica ash 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing for 28 days in 25℃ water sample environment, the activity index can reach 90.6% of standard cement, according to GB / T1346-2011 in the Lei's clamp test standard, the stability is 2mm.

[0076] Example 5

[0077] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 4 parts, sodium citrate 0.8 parts, calcium oxalate 1 part, silica ash 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing for 28 days in 25℃ water sample environment, the activity index can reach 89.3% of standard cement, according to GB / T1346-2011 in the Lei's clamp test standard, the stability is 1mm.

[0078] Example 6

[0079] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1 part, calcium oxalate 1 part, silica ash 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing for 28 days in 25℃ water sample environment, the activity index can reach 90.1% of standard cement, the stability is 1mm according to GB / T1346-2011 in the Lei's clamp test standard.

[0080] Example 7

[0081] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1 part, silica ash 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing for 28 days in 25℃ water sample environment, the activity index can reach 90.8% of standard cement, the stability is 1mm according to GB / T1346-2011 in the Lei's clamp test standard.

[0082] Example 8

[0083] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1.3 parts, silica ash 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing for 28 days in 25℃ water sample environment, the activity index can reach 89.8% of standard cement, the stability is 1mm according to GB / T1346-2011 in the Lei's clamp test standard.

[0084] Example 9

[0085] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1.5 parts, silica fume 0.2 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring 10 hours, then with steel slag powder together ball milling uniformity get after the excitation of steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing at 25℃ water sample environment for 28 days, measures its activity index can reach the highest standard cement 90.4%, according to GB / T1346-2011 in Lei's clamp method test standard, detect stability is 1mm.

[0086] Example 10

[0087] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1 part, silica fume 0.4 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring 10 hours, then with steel slag powder together ball milling uniformity get after the excitation of steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing at 25℃ water sample environment for 28 days, measures its activity index can reach the highest standard cement 91.5%, according to GB / T1346-2011 in Lei's clamp method test standard, detect stability is 1mm.

[0088] Example 11

[0089] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1 part, silica fume 0.6 parts, carbon nanotube array 0.05 parts are mixed in room temperature under magnetic stirring 10 hours, then with steel slag powder together ball milling uniformity get after the excitation of steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing at 25℃ water sample environment for 28 days, measures its activity index can reach the highest standard cement 91.4%, according to GB / T1346-2011 in Lei's clamp method test standard, detect stability is 1mm.

[0090] Example 12

[0091] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1 part, silica ash 0.4 parts, carbon nanotube array 0.08 parts are mixed at room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing at 25℃ water sample environment for 28 days, the activity index can reach 88.2% of the standard cement, according to GB / T1346-2011 in the Lei's clamp method test standard, the stability is 1mm.

[0092] Example 13

[0093] A composite steel slag activator, according to the mass fraction, polyol amine 1 part, polyol 3 parts, sodium citrate 1.2 parts, calcium oxalate 1 part, silica ash 0.4 parts, carbon nanotube array 0.1 parts are mixed at room temperature under magnetic stirring for 10 hours, then ball milling with steel slag powder together to get the activated steel slag material. According to GB / T17671-1999 test standard, the modified steel slag material and cement are mixed in the proportion of 3:7, curing at 25℃ water sample environment for 28 days, the activity index can reach 86.0% of the standard cement, according to GB / T1346-2011 in the Lei's clamp method test standard, the stability is 1mm.

[0094] Comparative example 1: no polyol amine, the rest is the same as example 1.

[0095] Comparative example 2: no polyol, the rest is the same as example 1.

[0096] Comparative example 3: no sodium citrate, the rest is the same as example 1.

[0097] Comparative example 4: no calcium oxalate, the rest is the same as example 1.

[0098] Comparative example 5: no silica ash, the rest is the same as example 1.

[0099] Comparative example 6: no carbon nanotube array, the rest is the same as example 1.

[0100] Comparative example 7: pure steel slag and cement are put into ball mill in the proportion of 3:7.

[0101] Comparative example 8: standard cement experimental sample.

[0102] Table 1 is the activity index, stability and resistivity of the samples of examples 1-13 and comparative examples 1-8. From table 1, it can be seen that each component of the composite alkaline activator can effectively improve the activity of the steel slag and enhance the stability. And the activity index is the highest when the polyol amine is 1 part, the polyol is 3 parts, the sodium citrate is 1.2 parts, the calcium oxalate is 1 part, the silica ash is 0.4 parts, and the carbon nanotube array is 0.05 parts. At the same time, the carbon nanotube array greatly reduces the resistivity of the whole steel slag cement and significantly improves the conductivity.

[0103] Table 1 is the detection results of all examples and comparative examples (the data in the table is the activity index compared with standard cement)

[0104]

[0105]

[0106] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any modification, equivalent replacement and improvement within the technical range disclosed by the present application, which is made by any person skilled in the art within the spirit and principle of the present application, should be covered within the protection scope of the present application.

Claims

1. A highly active electrically conductive steel slag composite activator, characterized in that, The high-activity conductive steel slag composite activator comprises the following components in parts by mass: polyhydric alcohol amine 0.6-1, polyhydric alcohol 2-4, sodium citrate 0.8-1.2, calcium oxalate 1-1.5, silica ash 0.2-0.6, and carbon nanotube array 0.05-0.

1. The preparation method of the high-activity conductive steel slag composite activator comprises the following steps: Step one, mixing polyhydric alcohol amine, polyhydric alcohol, sodium citrate, calcium oxalate, silica ash, and carbon nanotube array according to mass fraction; Step two, stirring the mixture by magnetic force for 10 hours to obtain the high-activity conductive steel slag composite activator.

2. The highly active electrically conductive steel slag composite activator according to claim 1, wherein the steel slag is a steel slag generated from a steel manufacturing process. The polyhydric alcohol amine comprises glycerol, triethanolamine, diisopropyl alcohol amine, and triisopropyl alcohol amine.

3. The highly active electrically conductive steel slag composite activator according to claim 1, wherein the steel slag is a steel slag generated from a steel manufacturing process. The polyhydric alcohol is ethylene glycol.

4. Application of the high-activity conductive steel slag composite activator according to any one of claims 1-3 in steel slag cement.

5. A method of using the high-activity electrically conductive steel slag composite activator according to claim 4 in steel slag cement, characterized by, The application method of the high-activity conductive steel slag composite activator in steel slag cement comprises the following steps: Step 1, mixing the prepared high-activity conductive steel slag composite activator with steel slag powder, putting them into a ball mill, and mixing them uniformly to obtain modified steel slag material; Step 2, mixing the modified steel slag material and cement at a ratio of 3:7, curing them in a water sample environment at 25℃ for 28 days, and detecting the compressive strength of the mixture.

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