Novel concrete pavement ecological snow removal repairing agent and preparation method thereof

Abstract

The invention discloses a novel concrete pavement ecological snow removal repairing agent and a preparation method thereof, and relates to the technical field of repairing agents. The concrete is prepared from 125-150 parts of quicklime powder, 223-247 parts of calcium carbonate powder, 15-20 parts of glutinous rice flour, 1-2 parts of silica fume, 20-25 parts of fine aggregate, 6-9 parts of basalt fiber, 5-10 parts of calcium chloride and 278-317 parts of water, and the preparation method comprises the following steps: step 1, weighing various materials according to the ratio of the raw materials; the preparation method comprises the following steps: step 1, adding calcium carbonate powder, glutinous rice flour, silica fume, fine aggregate, basalt fiber, calcium chloride and water into a cement mortar stirrer, and stirring to obtain uniform slurry; step 2, adding quicklime powder and the rest of water, and quickly stirring to obtain glutinous rice mortar; the glutinous rice mortar prepared by doping deicing salt calcium chloride into the glutinous rice mortar has the advantages of snow removal, low temperature resistance, good durability, excellent bonding effect, rapid hardening, early strength, high strength and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of repair agents, and in particular relates to a novel ecological snow-removing repair agent for concrete pavement and a preparation method thereof. Background Art

[0002] Winter weather in northern China causes cracked roads and heavy snow accumulation, raising the question of how to effectively clear them. Currently, snow removal relies on traditional methods such as de-icing agents and spreading sand and gravel. While these traditional methods can effectively address snow accumulation to a certain extent, excessive use not only damages the road surface but also reduces its service life. Consequently, researchers are increasingly looking to modify de-icing agents to address these issues. However, the uneconomical nature of these modified de-icing agents has limited their development.

[0003] Compared to traditional crack repair agents, glutinous rice mortar for snow removal and repair is significantly ahead of the development of repair theory. In ancient times, glutinous rice mortar was widely used in construction projects such as city walls, bridges, temples, and palaces. It was used not only for building walls but also for filling gaps between bricks and stone, enhancing the strength and durability of buildings. Its unique bonding strength and durability have earned it a significant place throughout history. However, due to the prolonged setting time and poor fluidity of traditional glutinous rice mortar at low temperatures (-20°C to -5°C), its mechanical properties and performance are reduced. Therefore, traditional glutinous rice mortar cannot be used below -5°C for long periods of time. At temperatures as low as -30°C, traditional glutinous rice mortar completely loses its performance.

[0004] During extreme snowfall, ambient temperatures can reach -40°C. Without reliable snow removal measures, the repair agent's performance will be significantly reduced, rendering the repair ineffective. Excessive snow removal salt can also cause wear and scratches on pavement materials. When it penetrates the pavement's interior, it reacts with the steel and other metal components within the material, activating previously passive steel. This in turn triggers corrosion, cracking and shedding of the concrete protective layer, and ultimately impacting the pavement's overall structure and bearing capacity. Therefore, the present invention proposes a novel, low-carbon, environmentally friendly concrete pavement snow removal repair agent and preparation method to address the problems inherent in the prior art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a new type of ecological snow removal and repair agent for concrete pavement and a preparation method thereof, thereby solving the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0008] 125-150 parts lime powder, 223-247 parts calcium carbonate powder, 15-20 parts glutinous rice flour, 1-2 parts silica fume, 20-25 parts fine aggregate, 6-9 parts basalt fiber, 5-10 parts calcium chloride, and 278-317 parts water. The quicklime powder is a mixture of one or more of CaO, MgO, SiO2, Al2O3, and Fe2O3; the fine aggregate is a mixture of 3mm-5mm recycled fine aggregate and ceramsite in a mass ratio of 2.7-3.8:2.3-3.0; the recycled fine aggregate is one of glass powder, recycled stone powder, and recycled brick powder; and the recycled stone powder is a 600-700 mesh powder obtained by grinding and sieving recycled stone powder.

[0009] A method for preparing a novel ecological snow removal and repair agent for concrete pavement comprises the following steps:

[0010] Step 1: First, various materials are weighed according to the raw material ratio, and then calcium carbonate powder, glutinous rice flour, silica fume, fine aggregate, basalt fiber and calcium chloride are poured into a cement mortar mixer and dry-mixed for 1-3 minutes, and then 1 / 3-3 / 4 of the total water volume is slowly added and continued to stir to obtain a uniform slurry; wherein, the preparation of glutinous rice flour is specifically as follows: first, 20-40g of glutinous rice is put into a glutinous rice grinder, first rotated forward for 20-40 minutes, then reversed for 20-40 minutes to obtain glutinous rice flour, and finally passed through an 80-100 mesh sieve to obtain glutinous rice flour; the preparation of basalt fiber is specifically as follows: 10-14g of basalt stone is placed in a calcining furnace, placed at a temperature of 1450°C-1500°C for 5-15 minutes, and after the basalt stone is melted, it is drawn at high speed using a platinum-rhodium alloy bushing to obtain continuous basalt fiber;

[0011] Step 2: Quicklime powder and the remaining 1 / 4-2 / 3 of water are added and stirred rapidly for 3-4 minutes before discharging to obtain glutinous rice paste; wherein, the preparation of quicklime powder is specifically as follows: limestone is first placed in a lime kiln and calcined at a high temperature of 900°C-1200°C, and then the calcined material is ground into white granular materials of different particle sizes, and then sieved to obtain quicklime powder; the sieved quicklime powder retains the powder with a particle size of ≤15mm.

[0012] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0013] The glutinous rice mortar prepared by adding deicing salt calcium chloride into the glutinous rice slurry of the present invention has the advantages of snow removal, low temperature resistance, good durability, excellent bonding effect, fast hardening, early strength and high strength. At the same time, compared with traditional inorganic glue, the glutinous rice mortar of the present invention can effectively reduce carbon emissions.

[0014] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] In the picture:

[0017] Figure 1 The figure is a flow chart of the preparation method of the present invention.

[0018] Figure 2 This is an X-ray diffraction analysis diagram of the glutinous rice mortar of the present invention.

[0019] Figure 3 These are SEM images of glutinous rice mortars enriched with different fibers according to the present invention.

[0020] Figure 4 This is the SEM image of the calcium chloride reinforced glutinous rice mortar of the present invention.

[0021] Figure 5 This is the SEM image of the glutinous rice flour reinforced glutinous rice mortar of the present invention.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1: Please refer to Figure 1-5 As shown, in this embodiment, a new type of ecological snow removal and repair agent for concrete pavement is provided, which includes the following components in parts by weight:

[0025] 125-150 parts lime powder, 223-247 parts calcium carbonate powder, 15-20 parts glutinous rice flour, 1-2 parts silica fume, 20-25 parts fine aggregate, 6-9 parts basalt fiber, 5-10 parts calcium chloride, and 278-317 parts water. The quicklime powder is a mixture of one or more of CaO, MgO, SiO2, Al2O3, and Fe2O3; the fine aggregate is a mixture of 3mm-5mm recycled fine aggregate and ceramsite in a mass ratio of 2.7-3.8:2.3-3.0; the recycled fine aggregate is one of glass powder, recycled stone powder, and recycled brick powder; and the recycled stone powder is a 600-mesh powder obtained by grinding and sieving recycled stone powder.

[0026] The glutinous rice mortar prepared by adding deicing salt calcium chloride into the glutinous rice slurry of the present invention has the advantages of snow removal, low temperature resistance, good durability, excellent bonding effect, fast hardening, early strength and high strength. At the same time, compared with traditional inorganic glue, the glutinous rice mortar of the present invention can effectively reduce carbon emissions.

[0027] Example 1.1: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0028] Weigh by weight. Glutinous rice mortar dosage: 19% quicklime powder, 33% calcium carbonate powder, 3% glutinous rice flour, and 3% basalt fiber. Admixture dosage: 1% calcium chloride and 41% water.

[0029] Example 1.2: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0030] Glutinous rice mortar dosage: quicklime powder 19%, calcium carbonate powder 31%, glutinous rice flour 3%, basalt fiber 5%. Admixture dosage: calcium chloride 1%, water 41%.

[0031] Example 1.3: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0032] Glutinous rice mortar dosage: quicklime powder 19%, calcium carbonate powder 28%, glutinous rice flour 3%, basalt fiber 8%. Admixture dosage: calcium chloride 1%, water 41%.

[0033] Example 1.4: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0034] Grind the regenerated stone powder in a grinder to 0.5-1µm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 30% calcium carbonate powder, 3% regenerated stone powder, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0035] Example 1.5: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0036] Grind the regenerated stone powder in a grinder to 0.5-1µm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 27% calcium carbonate powder, 6% regenerated stone powder, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0037] Example 1.6: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0038] Grind the regenerated stone powder in a grinder to 0.5-1 μm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 24% calcium carbonate powder, 9% regenerated stone powder, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0039] Example 1.7: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0040] Grind the regenerated stone powder in a grinder to 0.5-1µm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 21% calcium carbonate powder, 12% regenerated stone powder, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0041] Example 1.8: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0042] Grind the reclaimed rubber in a grinder to a particle size of 0.5-1 μm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 31% calcium carbonate powder, 2% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0043] Example 1.9: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0044] Grind the reclaimed rubber in a grinder to 0.5-1µm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 29% calcium carbonate powder, 4% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0045] Example 1.10: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0046] Grind the reclaimed rubber in a grinder to a particle size of 0.5-1 μm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 27% calcium carbonate powder, 6% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0047] Example 1.11: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0048] Grind the reclaimed rubber in a grinder to 0.5-1µm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 25% calcium carbonate powder, 8% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0049] Example 1.12: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0050] Grind the reclaimed rubber in a grinder to 0.5-1µm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 23% calcium carbonate powder, 10% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0051] Example 1.13: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0052] Grind the reclaimed rubber in a grinder to a particle size of 0.5-1 μm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 21% calcium carbonate powder, 12% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0053] Example 1.14: A novel ecological snow removal and repair agent for concrete pavement, comprising the following components in parts by weight:

[0054] Grind the reclaimed rubber in a grinder to a particle size of 0.5-1 μm and set aside. Glutinous rice mortar dosage: 19% quicklime powder, 19% calcium carbonate powder, 14% reclaimed rubber, 3% glutinous rice flour, and 3% basalt fiber. Additive dosage: 1% calcium chloride and 41% water.

[0055] Example 2: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, comprising the following steps:

[0056] Step 1: First, weigh various materials according to the raw material ratio, then pour calcium carbonate powder, glutinous rice flour, silica fume, fine aggregate, basalt fiber and calcium chloride into a cement mortar mixer and dry mix for 2 minutes, then slowly add 2 / 3 of the total water volume and continue stirring to obtain a uniform slurry; wherein, the preparation of glutinous rice flour is specifically as follows: first, put 30g of glutinous rice into a glutinous rice grinder, first rotate forward for 30 minutes, then reverse for 30 minutes to obtain glutinous rice flour, and finally pass through an 80-100 mesh sieve to obtain glutinous rice flour; the preparation of basalt fiber is specifically as follows: put 12g of basalt stone into a calcining furnace, place it at a temperature of 1450°C-1500°C for 10 minutes, and after the basalt stone is melted, use a platinum-rhodium alloy bushing to high-speed draw to obtain continuous basalt fiber;

[0057] Step 2: Quicklime powder and the remaining 1 / 3 of water are added and stirred rapidly for 3-4 minutes before discharging to obtain glutinous rice paste; wherein, the preparation of quicklime powder is specifically as follows: limestone is first placed in a lime kiln and calcined at a high temperature of 900°C-1200°C, and then the calcined material is ground into white granular materials of different particle sizes, and then sieved to retain powder with a particle size of ≤15mm to obtain quicklime powder.

[0058] Example 2.1: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically:

[0059] Using the repair material from Example 1.1, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0060] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 180-200mm, initial setting time 45-50min, final setting time 75-80min, initial compressive strength of 51.23-54.37MPa, and initial flexural strength of 6.9-7.7MPa.

[0061] Example 2.2: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically:

[0062] Using the repair material from Example 1.2, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0063] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 130-140mm (fluidity too low), initial setting time 45-50min, final setting time 105-115min (final setting time too long), initial compressive strength of 54.81-58.19MPa, and initial flexural strength of 12.9-14.1MPa.

[0064] Example 2.3: A method for preparing a new type of ecological snow removal and repair agent for concrete pavement, specifically:

[0065] Using the repair material from Example 1.3, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0066] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 135-145mm (fluidity too low), initial setting time 45-50min, final setting time 130-140min (final setting time too long), initial compressive strength of 52.34-54.16MPa, and initial flexural strength of 9.8-11.2MPa.

[0067] Example 2.4: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0068] Using the repair material from Example 1.4, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0069] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 160-165mm, initial setting time 30-35min, final setting time 75-80min, initial compressive strength of 52.34-55.07MPa, and initial flexural strength of 8.1-8.7MPa.

[0070] Example 2.5: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0071] Using the repair material from Example 1.5, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0072] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 160-165mm, initial setting time 30-43min, final setting time 75-80min, initial compressive strength of 49.91-52.13MPa, and initial flexural strength of 7.8-8.0MPa.

[0073] Example 2.6: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0074] Using the repair material from Example 1.6, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0075] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 180-190mm, initial setting time 40-45min, final setting time 100-110min (the final setting time was too long), initial compressive strength could reach 45.64-48.82MPa, and initial flexural strength was 6.7-7.4MPa.

[0076] Example 2.7: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0077] Using the repair material from Example 1.7, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0078] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 220-230mm (fluidity is too high), initial setting time 65-70min, final setting time 115-120min (final setting time is too long), initial compressive strength can reach 39.37-44.27MPa (strength is slightly low), and initial flexural strength is 4.8-5.3MPa (strength is slightly low).

[0079] Example 2.8: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0080] Using the repair material from Example 1.8, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0081] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 135-145mm (fluidity too low), initial setting time 40-45min, final setting time 90-100min (final setting time too long), initial compressive strength can reach 48.34-51.21MPa, and initial flexural strength is 4.3-5.0MPa.

[0082] Example 2.9: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0083] Using the repair material from Example 1.9, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0084] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 140-155mm, initial setting time 35-40min, final setting time 95-105min (the final setting time was too long), initial compressive strength could reach 38.14-42.31MPa, and initial flexural strength was 4.6-4.9MPa.

[0085] Example 2.10: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0086] Using the repair material from Example 1.10, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0087] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: 145-155mm (fluidity is too low), initial setting time 40-45min, final setting time 90-100min (final setting time is too long), initial compressive strength can reach 29.47-34.28MPa, and initial flexural strength is 3.8-4.5MPa.

[0088] Example 2.11: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0089] Using the repair material from Example 1.11, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0090] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 160-170mm, initial setting time 40-45min, final setting time 95-105min (the final setting time was too long), initial compressive strength could reach 46.27-49.71MPa, and initial flexural strength was 6.9-8.0MPa.

[0091] Example 2.12: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0092] Using the repair material from Example 1.12, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0093] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 165-175mm, initial setting time 40-45min, final setting time 105-115min (the final setting time was too long), initial compressive strength could reach 37.23-42.2MPa, and initial flexural strength was 8.0-8.7MPa.

[0094] Example 2.13: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0095] Using the repair material from Example 1.13, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0096] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 180-190mm, initial setting time 35-40min, final setting time 100-110min (the final setting time was too long), initial compressive strength could reach 35.76-40.3MPa, and initial flexural strength was 4.1-4.9MPa.

[0097] Example 2.14: A method for preparing a novel ecological snow removal and repair agent for concrete pavement, specifically comprising:

[0098] Using the repair material from Example 1.14, add two-thirds of the water and all of the calcium carbonate powder, glutinous rice flour, silica fume, and fiber to a mixing pot at room temperature and stir for 2 minutes. Then, add quicklime powder and the remaining water to the pot and continue stirring for 3-4 minutes. Finally, pour the slurry into a steel mold and let it rest for 28 days. This yields a glutinous rice mortar material for testing compressive and flexural strength.

[0099] The glutinous rice mortar material prepared in the example for testing the compressive and flexural strength was injected into a 100mm×100mm×100mm steel mold. Its performance parameters were measured as follows: fluidity 190-200mm (fluidity is too high), initial setting time 50-55min, final setting time 110-120min (final setting time is too long), initial compressive strength can reach 51.94-55.37MPa, and initial flexural strength is 12.4-14.21MPa.

[0100] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention, which have the same or similar technical solutions as the present invention, should be understood to fall within the scope of protection of the present invention. The technologies, shapes, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A new type of ecological snow removal repair agent for concrete pavement, characterized in that: The composition comprises the following parts by weight: 125-150 parts of lime powder, 223-247 parts of calcium carbonate powder, 15-20 parts of glutinous rice flour, 1-2 parts of silica fume, 20-25 parts of fine aggregate, 6-9 parts of basalt fiber, 5-10 parts of calcium chloride, and 278-317 parts of water.

2. A novel ecological snow removal and repair agent for concrete pavement according to claim 1, characterized in that: Quicklime powder is a mixture of one or more of CaO, MgO, SiO2, Al2O3, and Fe2O3.

3. A novel ecological snow removal repair agent for concrete pavement and a preparation method thereof according to claim 2, characterized in that: The fine aggregate is made by mixing recycled fine aggregate with a particle size of 3mm-5mm and expanded clay in a mass ratio of 2.7-3.8:2.3-3.

0.

4. A novel ecological snow removal and repair agent for concrete pavement according to claim 3, characterized in that: The recycled fine aggregate is one of glass powder, recycled stone powder and recycled brick powder.

5. The novel ecological snow removal and repair agent for concrete pavement according to claim 4 is characterized in that: Regenerated stone powder is a powder with a fineness of 600-700 mesh obtained by grinding and sieving the regenerated stone powder.

6. A method for preparing a novel ecological snow removal repair agent for concrete pavement, characterized in that: The following steps are involved: Step 1: Weigh various materials according to the raw material ratio, then pour calcium carbonate powder, glutinous rice flour, silica fume, fine aggregate, basalt fiber and calcium chloride into a cement mortar mixer and dry mix for 1-3 minutes, then slowly add 1 / 3-3 / 4 of the total water and continue stirring to obtain a uniform slurry; Step 2: Add quicklime powder and the remaining 1 / 4-2 / 3 of water and stir rapidly for 3-4 minutes before discharging to obtain glutinous rice paste.

7. The method for preparing a novel ecological snow removal and repairing agent for concrete pavement according to claim 1, characterized in that: In step 1, the preparation of glutinous rice flour is specifically as follows: first, 20-40 g of glutinous rice is put into a grinder, first rotated forward for 20-40 minutes, then reversed for 20-40 minutes to obtain glutinous rice flour, and finally passed through a 80-100 mesh sieve to obtain glutinous rice flour.

8. The method for preparing a novel ecological snow removal and repairing agent for concrete pavement according to claim 1, characterized in that: In step one, the preparation of basalt fiber is specifically as follows: 10-14g of basalt stone is placed in a calcining furnace, placed at a temperature of 1450℃-1500℃ for 5-15min, and after the basalt stone is melted, it is drawn at high speed using a platinum-rhodium alloy bushing to obtain continuous basalt fiber.

9. The method for preparing a novel ecological snow removal and repairing agent for concrete pavement according to claim 1, characterized in that: In step 2, quicklime powder is prepared by placing limestone in a lime kiln and calcining it at 900°C-1200°C, then grinding the calcined material into white granular materials of different particle sizes, and then sieving to obtain quicklime powder.

10. The method for preparing a novel ecological snow-removing repair agent for concrete pavement according to claim 9, characterized in that: The quicklime powder with a particle size of ≤15mm is sieved.

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