High-performance pervious concrete and preparation method thereof

Abstract

The invention relates to the technical field of concrete, and discloses high-performance pervious concrete and a preparation method thereof. The pervious concrete is prepared from the following raw materials in parts by weight: 160 to 220 parts of cement, 1200 to 1600 parts of stone, 170 to 230 parts of fine sand, 7 to 15 parts of composite reinforcing agent, 15 to 25 parts of basalt fiber, 3 to 4.5 parts of water reducing agent and 160 to 200 parts of water, according to the concrete, by introducing the composite reinforcing agent, the anti-permeation effect of the concrete is improved, the service life of the concrete is prolonged, and the composite reinforcing agent utilizes the synergistic effect between the inorganic reinforcing agent and the organic reinforcing agent, so that the concrete has excellent anti-permeation performance while the high water permeability of the water-permeable concrete is maintained; and concrete structure damage caused by water permeation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of concrete, and in particular to high-performance permeable concrete and a preparation method thereof. Background Art

[0002] Permeable concrete is a new type of ecological building material, composed of coarse aggregate, cementitious materials and water, which achieves water permeability and air permeability through a special pore structure. Its internal continuous pore structure gives it significant advantages in solving road surface waterlogging, replenishing groundwater, and alleviating urban waterlogging. However, due to its porous characteristics, permeable concrete has deficiencies in strength and durability, especially in terms of water penetration resistance.

[0003] The water penetration resistance of permeable concrete is crucial to its long-term stability and durability. In practical applications, permeable concrete needs to be used in complex environments, such as freeze-thaw cycles, chemical erosion, etc. These factors can lead to pore blockage, reduced strength and shortened service life. Therefore, improving the water penetration resistance of permeable concrete can not only extend its service life, but also better play its ecological function. For example, the use of hydrophobic materials such as silicone to modify permeable concrete can reduce water penetration and pore blockage by reducing the pore surface energy. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-performance permeable concrete and a preparation method thereof.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A high-performance permeable concrete comprises the following raw materials in parts by weight: 160-220 parts of cement, 1200-1600 parts of gravel, 170-230 parts of fine sand, 7-15 parts of composite reinforcing agent, 15-25 parts of basalt fiber, 3-4.5 parts of water reducing agent, and 160-200 parts of water;

[0007] The composite reinforcing agent is prepared by mixing an inorganic reinforcing agent and an organic reinforcing agent in a mass ratio of 3-7:3-7;

[0008] The inorganic reinforcing agent is prepared by the following steps:

[0009] Step A1, cetyltrimethylammonium bromide and water are mixed evenly, 25wt% ammonia water is added and stirred for 2h, and then ethyl orthosilicate is added dropwise and stirred for 24h, filtered, redispersed in an acidic ethanol solution, and refluxed at 70°C for 12h, filtered, washed, and dried to obtain mesoporous silica (MSN);

[0010] Further, in step A1, the usage ratio of hexadecyltrimethylammonium bromide, water, ammonia water, tetraethyl orthosilicate and acidic ethanol solution is 0.7-2.1 g:100 mL:5-15 mL:3-9 mL:200 mL;

[0011] Further, in step A1, the volume ratio of hydrochloric acid to ethanol in the acidic ethanol solution is 1:6;

[0012] Step A2, ultrasonically disperse sodium molybdate and water uniformly, adjust the pH to 6.5, add L-cysteine ​​and stir for 30 minutes, then add mesoporous silica and ultrasonically treat for 1 hour, transfer to a reactor at 180°C and react for 24 hours, centrifuge, wash and dry to obtain MSN / MoS2 nanomaterials;

[0013] The molybdenum disulfide structure can react chemically with the minerals in cement to generate hard compounds that fill the micropores and gaps in cement;

[0014] Further, in step A2, the usage ratio of sodium molybdate, water, L-cysteine ​​and mesoporous silica is 0.5-1.5 g:50 mL:2-6 g:0.15-0.45 g;

[0015] Step A3, ultrasonically disperse the MSN / MoS2 nanomaterial, m-trifluoromethyldiphenylamine and acetone for 2-3 hours, evacuate for 30 minutes, open to the atmosphere for 15 minutes, repeat the above steps 3 times, filter, wash and dry to obtain an inorganic reinforcing agent;

[0016] Furthermore, in step A3, the usage ratio of MSN / MoS2 nanomaterial, m-trifluoromethyldiphenylamine and acetone is 1-3g:2.5-5g:100mL.

[0017] The organic enhancer is prepared by the following steps:

[0018] Step B1, mix cyanuric chloride and acetonitrile, add half of octadecylamine solution at 0-5°C, stir and react for 2.5-3.5h, then heat to 45-55°C, add the remaining half of octadecylamine solution and react for 4-6h, finally heat to 90°C, add 1,6-hexanediamine solution and react for 5.5-6.5h, recrystallize, filter and dry to obtain a hydrophobic-triazine derivative;

[0019] Further, in step B1, the usage ratio of cyanuric chloride, acetonitrile, octadecylamine solution and 1,6-hexanediamine solution is 0.01-0.02 mol:100 mL:100 mL:50 mL;

[0020] Further, in step B1, the octadecylamine solution is prepared by mixing and stirring octadecylamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.02-0.04 mol: 0.6-1.2 g: 100 mL;

[0021] Further, in step B1, the 1,6-hexanediamine solution is prepared by mixing and stirring 1,6-hexanediamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.01-0.02 mol: 0.3-0.6 g: 50 mL;

[0022] Step B2, mix sodium alginate in water, adjust the pH to 6, add EDC (1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride) and NHS (N-hydroxysuccinimide) and stir for 30 minutes, then add a hydrophobic triazine derivative, stir and react for 24 hours, add ethanol and stir for 15 minutes, filter, wash and dry to obtain an organic enhancer;

[0023] Furthermore, in step B2, the usage ratio of sodium alginate, water, EDC, NHS and hydrophobic-triazine derivative is 1-3 g:100 mL:0.03-0.06 mol:0.015-0.03 mol:0.015-0.03 mol.

[0024] A method for preparing high-performance permeable concrete comprises the following steps:

[0025] Step S1, weighing raw materials by weight, mixing cement, gravel, fine sand, basalt fiber and water reducing agent and stirring them evenly, which is recorded as the primary mixture;

[0026] Step S2, adding the composite reinforcing agent into 70% of water and stirring evenly, then adding the primary mix and the remaining 30% of water and stirring evenly in a mixer to obtain high-performance permeable concrete.

[0027] Beneficial effects of the present invention:

[0028] The permeable concrete of the present invention improves the anti-penetration effect and service life of the concrete by introducing a composite reinforcing agent, wherein the composite reinforcing agent utilizes the synergistic effect between the inorganic reinforcing agent and the organic reinforcing agent, and while maintaining the high water permeability of the permeable concrete, it also has excellent anti-penetration performance, thereby reducing the damage to the concrete structure caused by water penetration.

[0029] The inorganic reinforcing agent introduced in the present application plays a micro-filling and hydrophobic role in permeable concrete; wherein, the hydrophobic structure introduced on the surface and pores of the inorganic reinforcing agent can effectively prevent moisture from penetrating into the interior of the concrete, thereby improving the waterproof performance of the concrete and extending the service life, and by reducing moisture penetration, it can also significantly improve the freeze-thaw resistance of the concrete and reduce the damage caused by freeze-thaw cycles; the nano size of the inorganic reinforcing agent allows it to be effectively filled into the gaps between cement and mineral admixtures, thereby effectively improving the pore structure of cement-based and other gel materials, thereby improving the mechanical properties of the concrete material, and at the same time, the filling of the gaps can also increase the solid content, improve the compactness of the concrete, and reduce the micropores and microcracks in the concrete.

[0030] Organic enhancers are made of sodium alginate as the main raw material, and long-chain hydrophobic alkyl and triazine structures are introduced through grafting modification. After being introduced into the concrete matrix, the organic enhancer can significantly improve the anti-penetration effect of the matrix. This is because the long-chain hydrophobic alkyl in the organic enhancer can migrate to the surface of the concrete and the surface of the internal pores, making the surface of the concrete and the surface of the internal pores hydrophobic. The hydrophobic surface and internal structure can effectively reduce the retention and penetration of water in the pores, while also reducing the erosion of the internal structure caused by water penetration, and improving the service life of permeable concrete. In addition, due to its excellent chemical stability, the triazine structure allows the organic enhancer to exist stably in the matrix and improves durability. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1: The inorganic reinforcing agent is prepared by the following steps:

[0033] Step A1, 0.7g hexadecyltrimethylammonium bromide and 100mL water were mixed evenly, 5mL of 25wt% ammonia water was added, stirred for 2h, and then 3mL of ethyl orthosilicate was added dropwise and stirred for 24h, filtered, and redispersed in 200mL of acidic ethanol solution, and refluxed at 70°C for 12h, filtered, washed, and dried to obtain mesoporous silica, wherein the volume ratio of hydrochloric acid to ethanol in the acidic ethanol solution is 1:6;

[0034] Step A2, ultrasonically disperse 0.5g sodium molybdate and 50mL water, adjust the pH to 6.5, add 2g L-cysteine ​​and stir for 30min, then add 0.15g mesoporous silica and ultrasonically treat for 1h, transfer to a 180℃ reactor and react for 24h, centrifuge, wash and dry to obtain MSN / MoS2 nanomaterials;

[0035] Step A3: Ultrasonic disperse 1 g of MSN / MoS2 nanomaterial, 2.5 g of m-trifluoromethyldiphenylamine and 100 mL of acetone for 2 h, evacuate for 30 min, and allow air to flow for 15 min. Repeat the above steps 3 times, filter, wash and dry to obtain an inorganic reinforcing agent.

[0036] The organic enhancer is prepared by the following steps:

[0037] Step B1, 0.01 mol of cyanuric chloride and 100 mL of acetonitrile were mixed, 50 mL of octadecylamine solution was added at 0°C and stirred for 2.5 h, then the temperature was raised to 45°C, 50 mL of octadecylamine solution was added and the reaction was continued for 4 h, and finally the temperature was raised to 90°C, 50 mL of 1,6-hexanediamine solution was added and the reaction was continued for 5.5 h, and the mixture was recrystallized, filtered and dried to obtain a hydrophobic triazine derivative, wherein the octadecylamine solution was prepared by mixing octadecylamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.02 mol: 0.6 g: 100 mL, and the 1,6-hexanediamine solution was prepared by mixing 1,6-hexanediamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.01 mol: 0.3 g: 50 mL;

[0038] Step B2, mix 1 g of sodium alginate in 100 mL of water, adjust the pH to 6, add 0.03 mol of EDC and 0.015 mol of NHS, stir for 30 min, then add 0.015 mol of hydrophobic-triazine derivative, stir and react for 24 h, add ethanol and stir for 15 min, filter, wash and dry to obtain an organic enhancer.

[0039] Example 2: The inorganic reinforcing agent is prepared by the following steps:

[0040] Step A1, 1.4g hexadecyltrimethylammonium bromide and 100mL water were mixed evenly, 10mL 25wt% ammonia water was added and stirred for 2h, 6mL ethyl orthosilicate was added dropwise and stirred for 24h, filtered, redispersed in 200mL acidic ethanol solution, and refluxed at 70°C for 12h, filtered, washed and dried to obtain mesoporous silica, wherein the volume ratio of hydrochloric acid to ethanol in the acidic ethanol solution was 1:6;

[0041] Step A2, ultrasonically disperse 1g of sodium molybdate and 50mL of water, adjust the pH to 6.5, add 4g of L-cysteine ​​and stir for 30min, then add 3g of mesoporous silica and ultrasonically treat for 1h, transfer to a reactor at 180°C and react for 24h, centrifuge, wash and dry to obtain MSN / MoS2 nanomaterials;

[0042] Step A3: Ultrasonic disperse 2 g of MSN / MoS2 nanomaterial, 3.5 g of m-trifluoromethyldiphenylamine and 100 mL of acetone for 2.5 h, evacuate for 30 min, and allow air to flow for 15 min. Repeat the above steps 3 times, filter, wash and dry to obtain an inorganic reinforcing agent.

[0043] The organic enhancer is prepared by the following steps:

[0044] Step B1, 0.015 mol of cyanuric chloride and 100 mL of acetonitrile were mixed, 50 mL of octadecylamine solution was added at 2°C and stirred for 3 h, then the temperature was raised to 50°C, 50 mL of octadecylamine solution was added and the reaction was continued for 5 h, and finally the temperature was raised to 90°C, 50 mL of 1,6-hexanediamine solution was added and the reaction was continued for 6 h, and the mixture was recrystallized, filtered and dried to obtain a hydrophobic triazine derivative, wherein the octadecylamine solution was prepared by mixing octadecylamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.03 mol: 0.9 g: 100 mL, and the 1,6-hexanediamine solution was prepared by mixing 1,6-hexanediamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.015 mol: 0.45 g: 50 mL;

[0045] Step B2, mix 2 g of sodium alginate in 100 mL of water, adjust the pH to 6, add 0.045 mol of EDC and 0.023 mol of NHS, stir for 30 min, then add 0.023 mol of hydrophobic-triazine derivative, stir and react for 24 h, add ethanol and stir for 15 min, filter, wash and dry to obtain an organic enhancer.

[0046] Example 3: The inorganic reinforcing agent is prepared by the following steps:

[0047] Step A1, 2.1g hexadecyltrimethylammonium bromide and 100mL water were mixed evenly, 15mL of 25wt% ammonia water was added and stirred for 2h, and then 9mL of ethyl orthosilicate was added dropwise and stirred for 24h, filtered, and redispersed in 200mL of acidic ethanol solution, and refluxed at 70°C for 12h, filtered, washed, and dried to obtain mesoporous silica, wherein the volume ratio of hydrochloric acid to ethanol in the acidic ethanol solution is 1:6;

[0048] Step A2, ultrasonically disperse 1.5g sodium molybdate and 50mL water, adjust the pH to 6.5, add 6g L-cysteine ​​and stir for 30min, then add 0.45g mesoporous silica and ultrasonically treat for 1h, transfer to a 180℃ reactor and react for 24h, centrifuge, wash and dry to obtain MSN / MoS2 nanomaterials;

[0049] Step A3: Ultrasonic disperse 3 g of MSN / MoS2 nanomaterial, 5 g of m-trifluoromethyldiphenylamine and 100 mL of acetone for 3 h, evacuate for 30 min, and allow air to flow for 15 min. Repeat the above steps 3 times, filter, wash and dry to obtain an inorganic reinforcing agent.

[0050] The organic enhancer is prepared by the following steps:

[0051] Step B1, 0.02 mol of cyanuric chloride and 100 mL of acetonitrile were mixed, 50 mL of octadecylamine solution was added at 5 ° C. and stirred for 3.5 h, then the temperature was raised to 55 ° C., 50 mL of octadecylamine solution was added and reacted for 6 h, and finally the temperature was raised to 90 ° C., 50 mL of 1,6-hexanediamine solution was added and reacted for 6.5 h, recrystallized, filtered, and dried to obtain a hydrophobic-triazine derivative, wherein the octadecylamine solution is prepared by mixing octadecylamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.04 mol: 1.2 g: 100 mL, and the 1,6-hexanediamine solution is prepared by mixing 1,6-hexanediamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.02 mol: 0.6 g: 50 mL;

[0052] Step B2, mix 3 g of sodium alginate in 100 mL of water, adjust the pH to 6, add 0.06 mol of EDC and 0.03 mol of NHS, stir for 30 min, then add 0.03 mol of hydrophobic-triazine derivative, stir and react for 24 h, add ethanol and stir for 15 min, filter, wash and dry to obtain an organic enhancer.

[0053] Embodiment 4: A method for preparing high-performance permeable concrete comprises the following steps:

[0054] Step S1, mixing the inorganic reinforcing agent prepared in Example 1 and the organic reinforcing agent prepared in Example 1 at a mass ratio of 3:7 to prepare a composite reinforcing agent;

[0055] Step S2, weighing raw materials by weight, mixing and stirring 160 parts of cement, 1200 parts of gravel, 170 parts of fine sand, 15 parts of basalt fiber and 3 parts of water reducing agent, and recording the initial mixture;

[0056] Step S3, adding 7 parts of composite reinforcing agent to 112 parts of water and stirring evenly, then adding the primary mix and 48 parts of water and stirring evenly in a mixer to obtain high-performance permeable concrete.

[0057] Embodiment 5: A method for preparing high-performance permeable concrete comprises the following steps:

[0058] Step S1, mixing the inorganic reinforcing agent prepared in Example 2 and the organic reinforcing agent prepared in Example 2 at a mass ratio of 4:6 to prepare a composite reinforcing agent;

[0059] Step S2, weighing raw materials by weight, mixing and stirring 200 parts of cement, 1400 parts of gravel, 200 parts of fine sand, 20 parts of basalt fiber and 4 parts of water reducing agent, and recording the mixture as the primary mixture;

[0060] Step S3, adding 11 parts of the composite reinforcing agent to 126 parts of water and stirring evenly, then adding the primary mix and 54 parts of water and stirring evenly in a mixer to obtain high-performance permeable concrete.

[0061] Embodiment 6: A method for preparing high-performance permeable concrete comprises the following steps:

[0062] Step S1, mixing the inorganic reinforcing agent prepared in Example 3 and the organic reinforcing agent prepared in Example 3 at a mass ratio of 5:5 to prepare a composite reinforcing agent;

[0063] Step S2, weighing raw materials by weight, mixing and stirring 220 parts of cement, 1600 parts of gravel, 230 parts of fine sand, 25 parts of basalt fiber and 4.5 parts of water reducing agent, and recording the initial mixture;

[0064] Step S3, adding 15 parts of the composite reinforcing agent to 140 parts of water and stirring evenly, then adding the primary mix and 60 parts of water and stirring evenly in a mixer to obtain high-performance permeable concrete.

[0065] Comparative Example 1: This comparative example is a permeable concrete, which differs from Example 6 in that step S1 is omitted, and the composite reinforcing agent in step S2 is replaced by the inorganic reinforcing agent prepared in Example 3, and the rest are the same.

[0066] Comparative Example 2: This comparative example is a permeable concrete, which differs from Example 6 in that step S1 is omitted, and the composite reinforcing agent in step S2 is replaced by the organic reinforcing agent prepared in Example 3, and the rest are the same.

[0067] Comparative Example 3: This comparative example is a permeable concrete, which is different from Example 6 in that step S1 is omitted and no composite reinforcing agent is added, and the rest is the same.

[0068] The permeable concrete prepared in Examples 4-6 and Comparative Examples 1-3 was subjected to performance tests:

[0069] Permeability coefficient: Test the permeability coefficient of permeable concrete according to GB / T25993-2010 "Instructions for Standard Permeable Cement Concrete Permeability Coefficient Test Device";

[0070] Anti-seepage performance: tested according to the test method in GB / T50082-2009 "Standard for Test Methods of Long-term Performance and Durability of Ordinary Concrete", with a penetration pressure of 3.5MPa and a pressurization time of 48h;

[0071] Compressive strength: The 28d compressive strength of permeable concrete is tested according to GB / T50081-2002 "Standard for Test Methods of Mechanical Properties of Ordinary Concrete";

[0072] The test results are shown in Table 1:

[0073] Table 1: Performance test results

[0074] Water permeability coefficient (mm / s) Water seepage height (mm) <![CDATA[Compressive strength( MPa )]]> Example 4 8.3 1.01 46.4 Example 5 8.5 0.98 47.2 Example 6 8.6 0.94 48.1 Comparative Example 1 7.9 1.72 32.6 Comparative Example 2 7.7 1.86 34.2 Comparative Example 3 6.3 2.83 28.3

[0075] As can be seen from Table 1, after the water permeability coefficient, impermeability and compressive strength tests of the permeable concrete prepared by the present invention, the water permeability coefficient is (8.3-8.6) mm / s, the water seepage height is (0.94-1.01) mm, and the compressive strength is (46.4-48.1) MPa, indicating that the permeable concrete not only has high water permeability, but also has excellent anti-permeability and compressive strength.

[0076] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the concept of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A high performance permeable concrete, characterized in that: The raw materials include the following parts by weight: 160-220 parts of cement, 1200-1600 parts of gravel, 170-230 parts of fine sand, 7-15 parts of composite reinforcing agent, 15-25 parts of basalt fiber, 3-4.5 parts of water reducing agent, and 160-200 parts of water; The composite reinforcing agent is prepared by mixing an inorganic reinforcing agent and an organic reinforcing agent in a mass ratio of 3-7:3-7; The inorganic reinforcing agent is prepared by loading trifluoromethyl diphenylamine on MSN / MoS2 nanomaterials, wherein the MSN / MoS2 nanomaterials are prepared by loading sodium molybdate and L-cysteine ​​on MSN after reaction, and the MSN is prepared by reacting ethyl orthosilicate, ammonia water and hexadecyltrimethylammonium bromide; The organic enhancer is prepared by reacting sodium alginate and a hydrophobic-triazine derivative, and the hydrophobic-triazine derivative is prepared by a substitution reaction of cyanuric chloride, octadecylamine and 1,6-hexanediamine.

2. The high performance permeable concrete according to claim 1, characterized in that: The inorganic reinforcing agent is prepared by the following steps: Step A1, mix hexadecyltrimethylammonium bromide and water evenly, add 25wt% ammonia water and stir for 2h, then add ethyl orthosilicate dropwise and stir for 24h, filter, redisperse in an acidic ethanol solution, and reflux at 70°C for 12h, filter, wash and dry to obtain mesoporous silica; Step A2, ultrasonically disperse sodium molybdate and water uniformly, adjust the pH to 6.5, add L-cysteine ​​and stir for 30 minutes, then add mesoporous silica and ultrasonically treat for 1 hour, transfer to a reactor at 180°C and react for 24 hours, centrifuge, wash and dry to obtain MSN / MoS2 nanomaterials; Step A3, ultrasonically disperse the MSN / MoS2 nanomaterial, m-trifluoromethyldiphenylamine and acetone for 2-3 hours, evacuate for 30 minutes, and allow air to flow for 15 minutes. Repeat the above steps 3 times, filter, wash and dry to obtain the inorganic reinforcing agent.

3. The high performance permeable concrete according to claim 2, characterized in that: In step A1, the dosage ratio of hexadecyltrimethylammonium bromide, water, ammonia water, tetraethyl orthosilicate and acidic ethanol solution is 0.7-2.1 g:100 mL:5-15 mL:3-9 mL:200 mL, and the volume ratio of hydrochloric acid to ethanol in the acidic ethanol solution is 1:

6.

4. The high performance permeable concrete according to claim 2, characterized in that: In step A2, the usage ratio of sodium molybdate, water, L-cysteine ​​and mesoporous silica is 0.5-1.5 g:50 mL:2-6 g:0.15-0.45 g.

5. The high performance permeable concrete according to claim 2, characterized in that: In step A3, the usage ratio of MSN / MoS2 nanomaterial, m-trifluoromethyldiphenylamine and acetone is 1-3 g:2.5-5 g:100 mL.

6. The high performance permeable concrete according to claim 1, characterized in that: The organic enhancer is prepared by the following steps: Step B1, mix cyanuric chloride and acetonitrile, add half of octadecylamine solution at 0-5°C, stir and react for 2.5-3.5h, then heat to 45-55°C, add the remaining half of octadecylamine solution and react for 4-6h, finally heat to 90°C, add 1,6-hexanediamine solution and react for 5.5-6.5h, recrystallize, filter and dry to obtain a hydrophobic-triazine derivative; Step B2, mix sodium alginate in water, adjust the pH to 6, add EDC and NHS and stir for 30 minutes, then add hydrophobic-triazine derivative, stir and react for 24 hours, add ethanol and stir for 15 minutes, filter, wash and dry to obtain an organic enhancer.

7. The high performance permeable concrete according to claim 6, characterized in that: In step B1, the usage ratio of cyanuric chloride, acetonitrile, octadecylamine solution and 1,6-hexanediamine solution is 0.01-0.02 mol:100 mL:100 mL:50 mL.

8. The high performance permeable concrete according to claim 7, characterized in that: The octadecylamine solution is prepared by mixing octadecylamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.02-0.04 mol:0.6-1.2 g:100 mL, and the 1,6-hexanediamine solution is prepared by mixing 1,6-hexanediamine, sodium hydroxide and acetonitrile in a dosage ratio of 0.01-0.02 mol:0.3-0.6 g:50 mL.

9. The high performance permeable concrete according to claim 6, characterized in that: In step B2, the usage ratio of sodium alginate, water, EDC, NHS and hydrophobic-triazine derivative is 1-3 g:100 mL:0.03-0.06 mol:0.015-0.03 mol:0.015-0.03 mol.

10. A method for preparing the high performance permeable concrete according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, weighing raw materials by weight, mixing cement, gravel, fine sand, basalt fiber and water reducing agent and stirring them evenly, which is recorded as the primary mixture; Step S2, adding the composite reinforcing agent into 70% of water and stirring evenly, then adding the primary mix and the remaining 30% of water and stirring evenly in a mixer to obtain high-performance permeable concrete.