Floor laying method based on anti-static fluorosilicon anti-cracking fiber flowable mortar

Abstract

The present application belongs to the technical field of floor construction, and particularly relates to a floor laying method based on an anti-static fluorosilicon anti-cracking fiber flow spreading mortar, the flow spreading mortar comprising the following components in parts by weight: 350-400 parts of low-alkaline silicate cement and high-strength sulphoaluminate cement, 50-60 parts of fluorosilicon modified resin emulsion powder, 200-220 parts of superfine quartz sand, 180-200 parts of washed river sand, 8-12 parts of chopped basalt fiber, and 3-5 parts of graphene anti-static powder. The present application realizes the effects of 28d flexural strength ≥ 8MPa, abrasion resistance ≤ 200mm, and stable anti-static performance without attenuation by compounding special high-strength cement and adding functional components such as chopped basalt fiber and graphene anti-static powder, and optimizing the stability of the internal network structure of the mortar, so that the floor has high flexural strength, high abrasion resistance, and stable anti-static performance. 3 ​

Description

Technical Field

[0001] This invention belongs to the field of floor construction technology, specifically relating to a floor laying method based on antistatic fluorosilicone crack-resistant fiber flowable mortar. Background Technology

[0002] As a fundamental structural component of industrial buildings, data centers, and other similar locations, the performance of flooring directly impacts the stability of precision equipment installation and operation, as well as the overall lifespan of the site. This is especially true for computing centers and data centers, where stringent requirements exist for surface flatness, crack resistance, environmental friendliness, and durability. These environments necessitate flooring technologies and materials that combine functionality and aesthetics. Fluorosilicone crack-resistant fiber-reinforced mortar flooring, with its self-leveling, crack-resistant, and wear-resistant properties, has become the preferred solution for modern high-standard industrial building flooring. Leveraging the flowability of specialized materials and the integrated molding advantages of its construction process, it effectively improves construction efficiency and overall quality, meeting the high-specification requirements of data centers and similar locations.

[0003] Traditional flooring installation processes and supporting materials have many technical defects, making it difficult to meet the requirements of modern data centers and other high-end industrial buildings. On the one hand, traditional processes require a fine aggregate concrete leveling layer, which is prone to problems such as hollowness, cracking, and substandard flatness. Furthermore, secondary construction is required by laying resin, paint, and other decorative materials, which not only increases construction procedures and extends project timelines but also poses environmental hazards such as the emission of formaldehyde, benzene, and other VOCs from decorative materials. The low flammability rating of some materials also poses fire safety risks. On the other hand, conventional cement-based self-leveling mortar has problems such as insufficient bonding strength, poor flexural strength, and poor wear resistance. It is prone to sanding, damage, and cracking under long-term exposure to equipment rolling and changes in environmental temperature and humidity. Its flatness can only meet the national standard of ≤3mm with a 2-meter straightedge, which cannot meet the high flatness requirement of ≤1mm with a 2-meter straightedge required for the installation of high-performance cabinets and precision equipment. In addition, the flowability of ordinary mortar is difficult to control, and problems such as air bubbles and insufficient density are prone to occur during construction, further reducing the overall reliability of the flooring.

[0004] With the advancement of large-scale data center projects, the industry's requirements for flooring systems—such as high flatness, high durability, environmental friendliness, and efficient construction—are becoming increasingly clear. Traditional flooring laying methods and materials are no longer adequate to meet the industry's development needs. Developing a method for laying antistatic fluorosilicone crack-resistant fiber-reinforced mortar flooring suitable for high-end industrial buildings, optimizing the mortar formula, and establishing standardized, integrated construction processes will solve problems such as hollow cracking, secondary construction, and environmental safety issues associated with traditional methods. Simultaneously, it will improve the mortar's core properties, including antistatic properties, crack resistance, adhesion, and wear resistance, enabling one-time leveling and rapid deployment of the flooring, while meeting the requirement of 10-15 years of maintenance-free durability. This has become a pressing technical problem to be solved in the field of modern industrial building flooring. Summary of the Invention

[0005] The purpose of this invention is to provide a flowable mortar based on antistatic fluorosilicone crack-resistant fibers. By compounding special high-strength cement and adding functional components such as short-cut basalt fibers and graphene antistatic powder, the stability of the internal network structure of the mortar is optimized, resulting in a floor with high flexural strength, high abrasion resistance, and stable antistatic properties, achieving a 28-day flexural strength ≥8MPa and abrasion resistance ≤200mm. 3 Furthermore, it maintains the technical effect of no reduction in antistatic performance.

[0006] The specific technical solution adopted by this invention is as follows: A type of flowable mortar based on antistatic fluorosilicone crack-resistant fibers comprises the following components by weight: 350-400 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement, 50-60 parts of fluorosilicone modified resin latex powder, 200-220 parts of ultrafine quartz sand, 180-200 parts of washed river sand, 8-12 parts of chopped basalt fiber, 3-5 parts of graphene antistatic powder, 4-6 parts of polycarboxylate high-efficiency water-reducing agent, 2-3 parts of hydroxypropyl methylcellulose ether, 3-4 parts of high-efficiency micro-expansion agent, 1-2 parts of high-efficiency defoamer, 2-3 parts of waterproof reinforcing agent, and deionized micro powder to make up to 20% of the total mass of raw materials, wherein the weight ratio of low-alkalinity silicate cement to high-strength sulfoaluminate cement is 3:7-4:6.

[0007] In a preferred embodiment, the chopped basalt fibers have a length of 6–12 mm and a diameter of 10–15 μm, the ultrafine quartz sand has a mesh size of 200–300 mesh, and the washed river sand has a particle size of 0.3–0.6 mm.

[0008] In a preferred embodiment, the fluorosilicone modified resin latex powder is an organofluorosilicone modified acrylate powder with an effective content of 45% to 50%.

[0009] In a preferred embodiment, the following components are included by weight: 380 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement blend, 55 parts of fluorosilicone modified resin latex powder, 216 parts of ultrafine quartz sand, 190 parts of washed river sand, 11 parts of short-cut basalt fiber, 4 parts of graphene antistatic powder, 5 parts of polycarboxylate superplasticizer, 2.5 parts of hydroxypropyl methylcellulose ether, 3.5 parts of high-efficiency micro-expansion agent, 1.5 parts of high-efficiency defoamer, 3 parts of waterproofing enhancer, and 215 parts of deionized micro powder.

[0010] In a preferred embodiment, the following components are included by weight: 350 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement blend, 50 parts of fluorosilicone modified resin latex powder, 200 parts of ultrafine quartz sand, 182 parts of washed river sand, 8 parts of short-cut basalt fiber, 3 parts of graphene antistatic powder, 4 parts of polycarboxylate superplasticizer, 2 parts of hydroxypropyl methylcellulose ether, 3 parts of high-efficiency micro-expansion agent, 1 part of high-efficiency defoamer, 2.3 parts of waterproofing enhancer, and 202 parts of deionized micro powder.

[0011] A method for laying flooring based on antistatic fluorosilicone crack-resistant fiber-based flowable mortar, applicable to any of the above-mentioned antistatic fluorosilicone crack-resistant fiber-based flowable mortars, includes the following steps: Step 1: Base treatment, grinding, shot blasting and repairing defects on the concrete floor to ensure that the base floor is clean, dry and meets the strength requirements; Step 2: Interface treatment. Apply a specially formulated high-penetration moisture-proof and crack-resistant water-based resin interface agent to the treated base surface to form a moisture-proof and crack-resistant film. At the same time, sprinkle 20-40 mesh quartz sand on the interface agent surface to enhance the adhesion between the base layer and the mortar layer. Then lay conductive copper foil with 2*2 meter intervals and complete the grounding terminal installation. Step 3: Construction preparation. Mark the lines according to the construction area and stick rubber strips. Stick foam strips at the base of the wall to set expansion joints. Confirm that the high-speed mixer and water supply are in normal condition. Delineate the paving area and the paving width of a single area shall not exceed 10 meters. Step 4: Mortar mixing. Mix the antistatic fluorosilicone crack-resistant fiber flowable mortar raw materials according to the formula, add 20% water of the total mass of the raw materials, and mix evenly with a high-speed mixer. The mixing speed is controlled at 800-1000 r / min, the mixing time is 3-5 min, and the initial flowability of the mortar is controlled between 140-145 mm. Step 5: Mobile paving. The mixed mortar is slowly and evenly fed horizontally from left to right and from inside to outside. The construction is continuous and without interruption. When the mortar flows out 0.5 meters wide, the construction workers wearing spiked shoes hold long-handled toothed scrapers to gently comb and spread the mortar surface. Step 6: Defoaming and compaction. After the mortar flows out of a 1-meter wide area, the construction workers wearing spiked shoes and holding a special defoaming roller gently roll it in one direction on the mortar surface to defoam, remove air bubbles and improve the density of the mortar. The mortar thickness is 20mm. Step 7: Post-treatment. After the mortar self-leveling is formed, the expansion joints of the floor are sealed with sealant. Two days after it is formed, two coats of transparent water-based anti-seepage protective agent are evenly applied to the surface to complete the floor laying.

[0012] In a preferred embodiment, after the floor is formed in Step 7, the friction coefficient of the floor needs to be tested. The friction coefficients of both dry and wet methods are ≥0.6, and the fire resistance rating of the floor meets the Class A combustion performance standard.

[0013] In a preferred embodiment, after the floor is formed in Step 7, the flatness of the floor meets the requirement of ≤1mm with a 2-meter straightedge or ≤3mm with a 3-meter straightedge.

[0014] The technical effects achieved by this invention are as follows: This invention optimizes the stability of the internal network structure of the mortar by compounding special high-strength cement and adding functional components such as short-cut basalt fiber and graphene antistatic powder. This results in a floor with high flexural strength, high abrasion resistance, and stable antistatic properties, achieving a 28-day flexural strength ≥8MPa and abrasion resistance ≤200mm. 3 Furthermore, the antistatic performance remains unchanged. This invention, through the formulation of standardized base treatment, interface coating, flow paving and defoaming and densification construction processes, precisely controls the mortar flowability between 140 and 145 mm, so that the flatness of the floor meets the high standard requirement of ≤1 mm with a 2-meter straightedge, and achieves the formation of a highly flat ground suitable for use with precision equipment and AGV trolleys. This invention uses inorganic raw materials with no VOC emissions and Class A fire-retardant components, combined with the use of crack-resistant and moisture-proof water-based resin interface agent and transparent water-based anti-seepage protective agent, so that the flooring meets the national Class A decoration material standard and the anti-seepage and stain resistance are greatly improved, achieving the effect of environmental protection and safety, easy cleaning and maintenance, and no cracking or peeling after long-term use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the fault of the present invention based on antistatic fluorosilicone crack-resistant fiber flowable mortar flooring; Figure 2 This is a schematic diagram showing the effect of the base layer treatment in Step 1 of Embodiment 4 of the present invention; Figure 3 This is a schematic diagram illustrating the effect of applying the water-based resin interface agent in Step 2 of Embodiment 4 of the present invention. Figure 4 This is a schematic diagram showing the effect of quartz sand being sprayed in Step 2 of Embodiment 4 of the present invention; Figure 5 This is a schematic diagram showing the effect of laying the conductive copper foil in Step 2 of Embodiment 4 of the present invention; Figure 6 This is a schematic diagram of the installation of the conductive copper foil grounding terminal in Step 2 of Embodiment 4 of the present invention; Figure 7 This is a construction diagram illustrating the process of removing air bubbles from the mortar in Step 6 of Embodiment 4 of the present invention; Figure 8This is a schematic diagram of the construction of the water-based anti-seepage protective agent in Step 7 of Embodiment 4 of the present invention; Figure 9 This is a schematic diagram showing the effect after the paving is completed in Step 7 of Embodiment 4 of the present invention. Detailed Implementation

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0019] Example Example 1 Prepare the following raw materials by weight: 380 parts of a blend of low-alkaline silicate cement and high-strength sulfoaluminate cement (weight ratio of low-alkaline silicate cement to high-strength sulfoaluminate cement is 3.5:6.5), 55 parts of organofluorine-silica modified acrylate powder (effective content 48%), 210 parts of 250-mesh ultrafine quartz sand, 190 parts of 0.3mm particle size washed river sand, 10 parts of 10mm long / 12μm diameter short-cut basalt fiber, 4 parts of graphene antistatic powder, and poly... Five parts of carboxylic acid high-efficiency water-reducing agent, 2.5 parts of hydroxypropyl methylcellulose ether, 3.5 parts of high-efficiency micro-expansion agent, 1.5 parts of high-efficiency defoamer, 2.5 parts of waterproof reinforcing agent, and 215 parts of deionized micro powder were added to a high-speed mixer at a speed of 900 r / min for 4 min. 20% of the total mass of the raw materials was added to deionized water, and the mixture was stirred for another 2 min to obtain a flowable mortar based on antistatic fluorosilicone crack-resistant fiber. The initial flowability of the mortar was measured to be 143 mm.

[0020] Example 2 Prepare the following raw materials by weight: 350 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement (weight ratio of low-alkalinity silicate cement to high-strength sulfoaluminate cement is 3.5:6.5), 50 parts of organofluorosilicone modified acrylate powder (effective content 45%), 200 parts of 250-mesh ultrafine quartz sand, 182 parts of 0.3mm particle size washed river sand, 8 parts of 10mm long / 12μm diameter short-cut basalt fiber, 3 parts of graphene antistatic powder, 4 parts of polycarboxylate high-efficiency water-reducing agent, 2 parts of hydroxypropyl methylcellulose ether, 3 parts of high-efficiency micro-expansion agent, 1 part of high-efficiency defoamer, 1.3 parts of waterproof reinforcing agent, and 202 parts of deionized micro powder. Put the above raw materials into a high-speed mixer, mix at 900r / min for 4min, add 20% of the total mass of deionized water, and continue mixing for 2min to obtain a flowable mortar based on antistatic fluorosilicone crack-resistant fiber. The initial flowability of the mortar is tested to be 140mm.

[0021] Example 3 Prepare the following raw materials by weight: 400 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement (the weight ratio of low-alkalinity silicate cement to high-strength sulfoaluminate cement is 3.5:6.5), 60 parts of organofluorosilicone modified acrylate powder (effective content 50%), 220 parts of 250-mesh ultrafine quartz sand, 200 parts of 0.3mm particle size washed river sand, 12 parts of 10mm long / 12μm diameter short-cut basalt fiber, 5 parts of graphene antistatic powder, 6 parts of polycarboxylate high-efficiency water-reducing agent, 3 parts of hydroxypropyl methylcellulose ether, 4 parts of high-efficiency micro-expansion agent, 2 parts of high-efficiency defoamer, 3 parts of waterproof reinforcing agent, and 185 parts of deionized micro powder. Put the above raw materials into a high-speed mixer, mix at 900r / min for 4min, add 20% of the total mass of deionized water, and continue mixing for 2min to obtain a flowable mortar based on antistatic fluorosilicone crack-resistant fiber. The initial flowability of the mortar is tested to be 145mm.

[0022] Example 4 Please see Figure 1 As shown, this embodiment provides a method for laying flooring based on antistatic fluorosilicone crack-resistant fiber flowable mortar, using the antistatic fluorosilicone crack-resistant fiber flowable mortar prepared in Embodiment 1, Embodiment 2, or Embodiment 3, including the following steps: Step 1: Base treatment. For the concrete floor, use a professional large-scale grinder for cross-grinding and a shot blasting machine for overall shot blasting to remove laitance, impurities, and loose mortar. For cracked, loose, or peeling areas, use a milling machine to remove the damaged parts, cutting cracks into V-shapes (depth ≥30mm), and then filling and compacting with high-toughness epoxy resin. For damp or contaminated areas, after water absorption and cleaning, use an exhaust fan and dehumidifier to dry, ensuring the base surface is clean, dry, meets strength standards, and has a moisture content below 20%. The final floor appearance after base treatment can be referenced... Figure 2As shown; Step 2: Interface treatment. Apply a specially formulated high-penetration, moisture-proof, and crack-resistant water-based resin interface agent to the treated substrate (see reference). Figure 3 As shown), a moisture-proof and crack-resistant film is formed; at the same time, 20-40 mesh quartz sand is sprinkled on the surface of the interface agent (refer to...). Figure 4 As shown), to enhance the adhesion between the base layer and the mortar layer, then lay conductive copper foil spaced 2*2 meters apart and complete the grounding terminal installation (refer to...). Figure 5 and Figure 6 (as shown) Step 3: Construction preparation. Mark the lines according to the construction area and stick rubber strips. Stick foam strips at the base of the wall to set expansion joints. Confirm that the high-speed mixer and water supply are in normal condition. Delineate the paving area and the paving width of a single area shall not exceed 10 meters. Step 4: Mortar mixing, prepare flowable mortar based on antistatic fluorosilicone crack-resistant fiber according to the method in Example 1, Example 2 or Example 3; Step 5: Mobile paving. The mixed mortar is pumped to the work surface and fed horizontally and slowly from left to right and from inside to outside. The construction is continuous and uninterrupted. When the mortar flows out 0.5 meters wide, the construction workers wearing spiked shoes use long-handled toothed scrapers to gently comb and spread the mortar on the surface to ensure that the mortar is evenly distributed. Step 6: Defoaming and Densification. After the mortar has flowed out over a 1-meter wide area, construction workers wearing spiked shoes and holding a special defoaming roller gently roll it in one direction on the mortar surface to defoam, remove air bubbles, and increase the density of the mortar (e.g., ...). Figure 7 As shown in the figure, the mortar thickness is 20mm; Step 7: Post-treatment. After the mortar self-leveling has set, apply a sealant to the expansion joints of the floor. Two days after setting, evenly apply two coats of a transparent water-based waterproofing agent (such as...) to the surface. Figure 8 As shown), the floor paving will be completed after the transparent water-based waterproofing agent has solidified (as shown). Figure 9 (As shown).

[0023] Comparative Example Purchase conventional antistatic cement-based self-leveling mortar flooring through commercial channels and lay the flooring according to the flooring laying method in Example 4 (same thickness 20mm).

[0024] Test case Multiple 5m*5m concrete floor areas were selected as construction areas. In each construction area, the mortar from Examples 1 to 3 and the comparative example were used as raw materials. The flooring was laid according to the steps in Example 4. Based on national standards such as JC / T 985-2017 "Cement-based Self-leveling Mortar for Floors", GB 8624-2012 "Classification of Combustion Performance of Building Materials and Products", and SJ / T11294-2018 "General Specification for Antistatic Floor Coatings", the core indicators of the floor, such as flatness, antistatic performance, physical and mechanical properties, environmental performance, combustion performance, and durability, were systematically tested. The performance differences were compared and analyzed to verify the technical advantages of the mortar and laying method in this application.

[0025] Test Example 1: Floor Flatness Test Using 2-meter and 3-meter aluminum alloy straightedges with an accuracy of 0.01mm, and wedge gauges with a measurement range of 0.02-10mm, 20 test points were randomly selected in the heavy machinery walking area, precision equipment placement area, and open area of ​​the test and control groups. Following the operating procedure of "the straightedge is close to the ground and the feeler gauge is inserted into the gap to measure the maximum gap", the gap value of the 2-meter and 3-meter straightedges at each test point was measured in sequence. A total of 60 test data points were obtained for each group, and the average value of each gap value was calculated. At the same time, it was verified whether the data met the high standard of modern industrial buildings (2-meter straightedge ≤1mm, 3-meter straightedge ≤3mm) and the national standard (2-meter straightedge ≤3mm) flatness requirements. The results are shown in Table 1.

[0026] Table 1: As shown in Table 1, the average gaps between 2-meter straightedges for the floors laid using the mortars of Examples 1 to 3 of this invention are 0.5mm, 0.6mm, and 0.8mm, respectively, all far below the high standard requirement of ≤1mm for 2-meter straightedges in modern industrial buildings. The average gaps between 3-meter straightedges are 1.8mm, 2.2mm, and 2.6mm, respectively, also meeting the high standard of ≤3mm. In contrast, the floor laid using conventional anti-static cement-based self-leveling mortar in the comparison example has an average gap of 2.5mm between 2-meter straightedges. While this meets the national standard requirement of ≤3mm, it does not meet the high flatness standard of ≤1mm required for high-end industrial sites such as data centers. The average gap between 3-meter straightedges is 4.6mm, also exceeding the high standard requirement of ≤3mm. This indicates that this application, through optimizing the mortar formula and construction process, significantly improves the overall flatness of the floor, meeting the stringent requirements for ground flatness during the installation of precision equipment.

[0027] Test Example 2: Antistatic Performance Test of Flooring The environment of the construction area was adjusted to a standard environment with a temperature of 23±2℃ and a relative humidity of 50±5%, and the measurement range was adopted. A surface resistivity tester with an accuracy of ±5% was used to randomly select 30 test points in different areas of each sample floor. The point-to-point resistance and ground resistance were tested three times at each test point, and the average value was recorded. Initial test data was then recorded. Subsequently, all floors underwent a continuous energized simulation aging test for six months. Resistance values ​​were remeasured under the same conditions, and the rate of change in resistance was calculated. The criterion for judgment was that the resistance value was within a certain range. Furthermore, there was no performance degradation; the test results are shown in Table 2.

[0028] Table 2: As can be seen from Table 2, the average initial ground resistance of the ground in Examples 1 to 3 is consistently at a certain level. The ideal anti-static range was achieved. After 6 months of continuous aging test, the resistance change rate was controlled at ≤3%, ≤5%, and ≤9%, respectively, demonstrating excellent anti-static performance stability and meeting the requirements for long-term anti-static use. Among them, Examples 1 and 2 showed outstanding long-term anti-static compliance. Although the resistance change rate of Example 3 was slightly higher, it was still within an acceptable range. However, the average initial resistance to ground of the comparative example was close to the upper limit of the standard. After 6 months of aging, the average resistance exceeded the upper limit of the standard, and the resistance change rate also exceeded the standard requirements, thus failing to meet the long-term anti-static compliance. This indicates that by adding graphene anti-static powder and optimizing its dispersion in the mortar system, combined with the laying of conductive copper foil and grounding treatment, this application not only achieved excellent initial anti-static performance but also ensured long-term performance stability. It effectively solved the problem of the degradation or even failure of anti-static performance of traditional anti-static flooring after long-term use, and can reliably meet the continuous anti-static needs of static-sensitive environments such as data centers.

[0029] Test Example 3: Physical and Mechanical Performance Test According to JC / T985-2017 standard, standard test blocks were prepared for Examples 1, 2, 3, and the comparative example, with 3 parallel samples in each group. Tests were conducted sequentially: tensile bond strength was determined using an electronic universal testing machine; flexural and compressive strengths at 24h and 28d were determined using a flexural / compression testing machine, and the compression-flexural ratio was calculated; volumetric wear at 400 revolutions was determined using an abrasion testing machine; dimensional change rate was determined after 28 days of standard curing; and impact resistance was tested using a 5kg drop hammer from a height of 1.5m. All results were taken as the average of the parallel samples. The judgment criteria were: tensile bond strength ≥ 2.0MPa, 28-day compressive strength ≥ 35MPa, and abrasion resistance ≤ 200mm. 3 No cracking or detachment was observed. Please refer to Table 3 for the test results.

[0030] Table 3: As shown in Table 3, the tensile bond strength of Examples 1 to 3 is significantly higher than the ≥2.0MPa criterion, while the comparative example is only 1.2MPa. This indicates that the mortar of this application has a stronger bonding ability with the substrate and can effectively prevent floor hollowing and delamination. In terms of strength performance, the 28-day compressive strength of Examples 1 to 3 all meet the requirement of ≥35MPa, with Example 1 showing a significant advantage. The 28-day flexural strength is much higher than the 5.3MPa of the comparative example, demonstrating good toughness. The compressive-flexural ratio (compressive strength / flexural strength) is approximately 4.17, 4.11, and 4.28, respectively, which is within a reasonable range, indicating that the material has both high strength and a certain degree of flexibility. In the abrasion resistance test, the volumetric wear at 400 revolutions of Examples 1 to 3 is lower than the standard, while the comparative example is as high as 480mm. 3 This indicates that the flooring of this application has superior wear resistance and can withstand long-term, frequent wear from personnel walking and equipment handling. Regarding dimensional change rate, Examples 1 to 3 all showed a small negative change rate (-0.02% to -0.04%), indicating that the mortar's shrinkage was well controlled during the hardening process. In contrast, the comparative example showed an expansion of +0.08%, which could easily lead to floor cracking. In the impact resistance test, the test blocks of Examples 1 to 3 showed no cracking or detachment under a 5kg drop hammer impact from a height of 1.5m, demonstrating good impact resistance. The comparative example test blocks showed slight cracking at the edges and corners, showing that the mortar of this application, by adding reinforcing materials such as short-cut basalt fibers, effectively improves the overall physical and mechanical properties of the flooring, making it superior to conventional antistatic cement-based self-leveling mortar in terms of strength, toughness, wear resistance, volume stability, and impact resistance.

[0031] Test Example 4: Environmental and Combustion Performance Test of Flooring According to GB 8624-2012 standard, the combustion performance tester for building materials was used to test the samples of Example 1, Example 2, Example 3 and the comparative example to determine the combustion performance level. According to GB 6566-2010 and the national standard for VOC detection, the internal and external radiation indexes were determined using a radionuclide detector, and the formaldehyde and benzene volatilization were detected using gas chromatography-mass spectrometry to determine whether they met the national Class A decoration material standard (Class A combustion, no VOC volatilization, and radioactivity compliance). The results are shown in Table 4.

[0032] Table 4: As shown in Table 4, the fire performance rating of the flooring in Examples 1 to 3 all reached Class A, meeting the highest fire performance requirements for building materials in GB 8624-2012 standard, and exhibiting excellent fire safety. In contrast, the fire performance rating of the comparative example was Class B1, indicating relatively lower fire resistance. Regarding radionuclide detection, the internal and external exposure indices of Examples 1 to 3 were both lower than those specified in GB 8624-2012. The 6566-2010 standard for Class A decorative materials stipulates an internal radiation index of ≤1.0 and an external radiation index of ≤1.3, indicating that their radioactivity levels are safe and will not pose a radiation hazard to human health. The comparative example has an internal radiation index of 0.9 and an external radiation index of 1.1, which, although not exceeding the limits, are close to the critical values. In the VOC emission test, formaldehyde, benzene, and other harmful substances in Examples 1 to 3 were not detected, demonstrating excellent environmental performance. However, trace amounts of formaldehyde and benzene were detected in the comparative example. Overall, the flooring materials in Examples 1 to 3 fully comply with the national Class A decorative material standard in terms of combustion performance, radioactivity, and VOC emission. The comparative example, due to its lower combustion performance level and trace VOC emission, does not meet the requirements for Class A decorative materials. This indicates that this application has successfully achieved high environmental protection and high flame retardancy in flooring materials by selecting low-radioactive aggregates, solvent-free environmentally friendly resins, and inorganic flame-retardant materials, which can meet the needs of places with extremely high environmental protection and fire safety requirements, such as hospitals, food processing plants, and high-end office buildings.

[0033] Test Example 5: Simulation Test of Floor Durability An industrial floor durability simulation testing machine was used to conduct simulation tests on the flooring of Examples 1, 2, 3, and the comparative example. A 5t forklift and a 1t AGV trolley traveled back and forth for 1000km at a speed of 5km / h, simultaneously simulating temperature cycles of -10℃ to 40℃ and humidity cycles of 30% to 80%, equivalent to 10 years of industrial use. After the test, the surface condition was observed, and the flatness, antistatic properties, and tensile bond strength were retested to evaluate the performance degradation. The test results are shown in Table 5.

[0034] Table 5: As shown in Table 5, after simulated driving and temperature and humidity cycling aging, the surfaces of the flooring in Examples 1 to 3 remained intact, without defects such as cracking, sanding, or blistering, while the surface of the flooring in the comparative example showed obvious cracking and sanding. In the performance retest, the average gap of the 2-meter straightedge in Examples 1 to 3 still met the high standards required for modern industrial buildings, while the comparative example exceeded the upper limit of the standard. In terms of antistatic resistance, Examples 1 to 3 were all within the ideal range with a small rate of change, while the resistance value of the comparative example exceeded the standard range. The tensile bond strength retest results showed that Examples 1 to 3 still maintained above 2.1 MPa, while the comparative example dropped significantly to 0.8 MPa, indicating that its bond with the base layer had seriously failed. In summary, the flooring in Examples 1 to 3 only showed slight performance degradation after long-term simulated use, demonstrating excellent durability, while the comparative example showed serious performance degradation and could not meet the requirements of long-term industrial use, further verifying the significant advantages of the mortar formula and laying process of this application in improving the long-term reliability of the flooring.

[0035] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A type of flowable mortar based on antistatic fluorosilicone crack-resistant fibers, characterized in that: The mixture comprises the following components by weight: 350-400 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement, 50-60 parts of fluorosilicone modified resin latex powder, 200-220 parts of ultrafine quartz sand, 180-200 parts of washed river sand, 8-12 parts of chopped basalt fiber, 3-5 parts of graphene antistatic powder, 4-6 parts of polycarboxylate superplasticizer, 2-3 parts of hydroxypropyl methylcellulose ether, 3-4 parts of high-efficiency micro-expansion agent, 1-2 parts of high-efficiency defoamer, 2-3 parts of waterproof reinforcing agent, and deionized micro powder to make up to 20% of the total mass of raw materials. The weight ratio of low-alkalinity silicate cement to high-strength sulfoaluminate cement is 3:7-4:

6.

2. The antistatic fluorosilicone crack-resistant fiber-based flowable mortar according to claim 1, characterized in that: The chopped basalt fibers have a length of 6–12 mm and a diameter of 10–15 μm, the ultrafine quartz sand has a mesh size of 200–300 mesh, and the washed river sand has a particle size of 0.3–0.6 mm.

3. The antistatic fluorosilicone crack-resistant fiber-based flowable mortar according to claim 1, characterized in that: The fluorosilicone modified resin latex powder is an organofluorosilicone modified acrylate powder with an effective content of 45% to 50%.

4. The antistatic fluorosilicone crack-resistant fiber-based flowable mortar according to claim 1, characterized in that: The product comprises the following components by weight: 380 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement blend, 55 parts of fluorosilicone modified resin latex powder, 216 parts of ultrafine quartz sand, 190 parts of washed river sand, 11 parts of short-cut basalt fiber, 4 parts of graphene antistatic powder, 5 parts of polycarboxylate superplasticizer, 2.5 parts of hydroxypropyl methylcellulose ether, 3.5 parts of high-efficiency micro-expansion agent, 1.5 parts of high-efficiency defoamer, 3 parts of waterproofing enhancer, and 215 parts of deionized micro powder.

5. The antistatic fluorosilicone crack-resistant fiber-based flowable mortar according to claim 1, characterized in that: The product comprises the following components by weight: 350 parts of low-alkalinity silicate cement and high-strength sulfoaluminate cement blend, 50 parts of fluorosilicone modified resin latex powder, 200 parts of ultrafine quartz sand, 182 parts of washed river sand, 8 parts of short-cut basalt fiber, 3 parts of graphene antistatic powder, 4 parts of polycarboxylate superplasticizer, 2 parts of hydroxypropyl methylcellulose ether, 3 parts of high-efficiency micro-expansion agent, 1 part of high-efficiency defoamer, 2.3 parts of waterproof reinforcing agent, and 202 parts of deionized micro powder.

6. A method for laying flooring based on antistatic fluorosilicone crack-resistant fiber-based flowable mortar, applicable to the antistatic fluorosilicone crack-resistant fiber-based flowable mortar as described in any one of claims 1 to 5, characterized in that: Includes the following steps: Step 1: Grind, shot blast, and repair defects in the concrete floor to ensure that the base surface is clean, dry, and meets the strength requirements; Step 2: Apply a specially formulated high-penetration moisture-proof and crack-resistant water-based resin interface agent to the treated base surface to form a moisture-proof and crack-resistant film. At the same time, sprinkle 20-40 mesh quartz sand on the interface agent surface to enhance the adhesion between the base layer and the mortar layer. Then lay conductive copper foil with 2*2 meter intervals and complete the grounding terminal installation. Step 3: Mark the lines according to the construction area and stick rubber strips. Stick foam strips at the foot of the wall to set expansion joints. Confirm that the high-speed mixer and water supply are in normal condition. Delineate the paving area and the paving width of a single area shall not exceed 10 meters. Step 4: Mix the antistatic fluorosilicone crack-resistant fiber flowable mortar raw materials according to the formula, add 20% water of the total mass of the raw materials, and mix evenly with a high-speed mixer. The mixing speed is controlled at 800-1000 r / min, the mixing time is 3-5 min, and the initial flowability of the mortar is controlled between 140-145 mm. Step 5: The mixed mortar is slowly and evenly fed horizontally from left to right and from inside to outside. The construction is continuous and uninterrupted. When the mortar flows out to a width of 0.5 meters, the construction workers wearing spiked shoes hold long-handled toothed scrapers to gently comb and spread the mortar surface. Step 6: After the mortar flows out of a 1-meter wide area, the construction workers wearing spiked shoes and holding a special defoaming roller gently roll it in one direction on the mortar surface to remove bubbles and increase the density of the mortar. The mortar thickness is 20mm. Step 7: After the mortar self-leveling is formed, the expansion joints of the floor are sealed with sealant. Two days after it is formed, two coats of transparent water-based anti-seepage protective agent are evenly applied to the surface to complete the floor laying.

7. A method for laying flooring based on antistatic fluorosilicone crack-resistant fiber-reinforcing mortar according to claim 6, characterized in that: After the floor is formed in Step 7, the friction coefficient of the floor needs to be tested. The friction coefficient of both dry and wet methods should be ≥0.6, and the fire resistance rating of the floor should meet the Class A combustion performance standard.

8. A method for laying flooring based on antistatic fluorosilicone crack-resistant fiber-reinforcing mortar according to claim 6, characterized in that: After the floor is formed in Step 7, the flatness of the floor must meet the requirement of ≤1mm with a 2-meter straightedge or ≤3mm with a 3-meter straightedge.

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