Fiber material reinforced wear-resistant ground structure and construction method thereof

Abstract

The invention provides a fiber material reinforced wear-resistant ground structure which comprises a ground concrete base layer, a reinforced concrete leveling layer, a carbon fiber reinforced epoxy wear-resistant layer and a permeable polymer emulsion sealing layer which are sequentially arranged from bottom to top, and short carbon fibers are subjected to plasma grafting treatment; pre-dispersing, and packaging in a water-soluble PVA film to obtain a packaged carbon fiber bundle; the preparation method comprises the following steps: adding nano aluminum oxide into an epoxy resin matrix, and doping an ionic liquid modifier to obtain a modified epoxy resin matrix; uniformly mixing and stirring the packaged carbon fiber bundles and the modified epoxy resin matrix, pouring on the reinforced concrete leveling layer, and brushing to form a carbon fiber reinforced epoxy wear-resistant layer; and adding water into a permeable polymer containing nano SiO2, uniformly stirring, pouring on the carbon fiber reinforced epoxy wear-resistant layer, and brushing to form a permeable polymer emulsion sealing layer. The fiber material reinforced wear-resistant ground structure is good in wear resistance, not prone to aging, good in high temperature resistance, high in crack resistance, convenient to construct and short in construction period.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, particularly to the technical field of wear-resistant floor structures and their construction methods, and specifically refers to a fiber material-reinforced wear-resistant floor structure and its construction method. Background Art

[0002] Building construction refers to the production activities during the implementation stage of project construction, which is the construction process of various buildings. It can also be said to be the process of turning the various lines on the design drawings into physical objects at the designated location. It includes foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction, etc.

[0003] The floors of many buildings need to have high wear resistance. For example, the floors in industrial plants, logistics warehouses, parking lots and other places have relatively high requirements for floor wear resistance. There are various existing wear-resistant floors, and corresponding material floors are used according to different requirements. For example, in places such as terminals, high-speed railway stations, hospitals, schools, factories, and underground parking lots, the paved floors are required to be super wear-resistant, noise-reducing, and anti-slip. Currently, the common materials are polyurethane floor coatings or diamond abrasive wear-resistant concrete floors. At present, epoxy floors and diamond abrasive floors are often used for vehicle driving floors.

[0004] However, the traditional wear-resistant floors have the following problems: epoxy floors are prone to aging and have poor high-temperature resistance; diamond abrasive floors have insufficient crack resistance and are prone to cracking due to the shrinkage of the base layer; the construction period is long, and multiple coatings and maintenance are required.

[0005] Therefore, it is desired to provide a wear-resistant floor that has good wear resistance, is not easy to age, has good high-temperature resistance, strong crack resistance, convenient construction, and a short construction period. Summary of the Invention

[0006] In order to overcome the above-mentioned disadvantages in the prior art, an object of the present invention is to provide a fiber material-reinforced wear-resistant floor structure that has good wear resistance, is not easy to age, has good high-temperature resistance, strong crack resistance, and is suitable for large-scale popularization and application.

[0007] Another object of the present invention is to provide a fiber material-reinforced wear-resistant floor structure that is ingeniously designed, has a simple structure, convenient construction, a short construction period, and is suitable for large-scale popularization and application.

[0008] Another object of the present invention is to provide a construction method for a fiber material-reinforced wear-resistant floor structure that has convenient construction, a short construction period, and is suitable for large-scale popularization and application.

[0009] To achieve the above object, in the first aspect of the present invention, a fiber material reinforced wear-resistant floor structure is provided, including a ground concrete base layer, and the ground concrete base layer is horizontally arranged. Its characteristics are that the fiber material reinforced wear-resistant floor structure further includes a reinforced concrete leveling layer, a carbon fiber reinforced epoxy wear-resistant layer, and a permeable polymer emulsion sealing layer, wherein:

[0010] The reinforced concrete leveling layer is horizontally arranged on the ground concrete base layer, the carbon fiber reinforced epoxy wear-resistant layer is horizontally arranged on the reinforced concrete leveling layer, and the permeable polymer emulsion sealing layer is horizontally arranged on the carbon fiber reinforced epoxy wear-resistant layer;

[0011] The carbon fiber reinforced epoxy wear-resistant layer is formed by the following method: short carbon fibers are subjected to plasma surface grafting treatment to introduce carboxyl groups on the surface to obtain modified carbon fibers; the modified carbon fibers are pre-dispersed to obtain pre-dispersed carbon fiber bundles, and the pre-dispersed carbon fiber bundles are encapsulated in a water-soluble PVA film to avoid agglomeration before construction to obtain encapsulated carbon fiber bundles; nano-aluminum oxide is added to the epoxy resin matrix to improve wear resistance, and an ionic liquid modifier is incorporated to enhance the carbon fiber-epoxy interface bonding force to obtain a modified epoxy resin matrix; the encapsulated carbon fiber bundles are mixed with the modified epoxy resin matrix, stirred evenly, and then poured on the reinforced concrete leveling layer for brushing to form the carbon fiber reinforced epoxy wear-resistant layer;

[0012] The permeable polymer emulsion sealing layer is formed by the following method: a permeable polymer containing nano-SiO2 is added with water and stirred evenly to form a permeable polymer emulsion, and the permeable polymer emulsion is directly poured on the carbon fiber reinforced epoxy wear-resistant layer for brushing to form the permeable polymer emulsion sealing layer.

[0013] Preferably, the fiber material reinforced wear-resistant floor structure further includes an interface agent layer, the interface agent layer is horizontally arranged on the carbon fiber reinforced epoxy wear-resistant layer, and the permeable polymer emulsion sealing layer is horizontally arranged on the interface agent layer.

[0014] In the second aspect of the present invention, a construction method of the above fiber material reinforced wear-resistant floor structure is provided, and its characteristics are that it includes the following steps:

[0015] S1. Construct the reinforced concrete leveling layer

[0016] Pour and vibrate the reinforced concrete leveling layer on the ground concrete base layer;

[0017] S2. Construct the carbon fiber reinforced epoxy wear-resistant layer

[0018] S21. Subject the short carbon fiber to plasma grafting treatment to introduce carboxyl groups onto the surface, obtaining modified carbon fiber; perform pre-dispersion on the modified carbon fiber to obtain a pre-dispersed carbon fiber bundle, and encapsulate the pre-dispersed carbon fiber bundle in a water-soluble PVA film to avoid agglomeration before construction, obtaining an encapsulated carbon fiber bundle;

[0019] S22. Add nano-aluminum oxide to the epoxy resin matrix to improve wear resistance, and incorporate an ionic liquid modifier to enhance the carbon fiber-epoxy interface bonding force, obtaining a modified epoxy resin matrix;

[0020] S23. Mix the encapsulated carbon fiber bundle with the modified epoxy resin matrix, stir evenly, and then pour and apply it on the reinforced concrete leveling layer to form the carbon fiber-reinforced epoxy wear-resistant layer;

[0021] S3. Construct the permeable polymer emulsion sealing layer

[0022] Stir the permeable polymer containing nano-SiO2 with water evenly to form a permeable polymer emulsion, and directly pour and apply the permeable polymer emulsion on the carbon fiber-reinforced epoxy wear-resistant layer to form the permeable polymer emulsion sealing layer.

[0023] Preferably, in step S21, the length of the short carbon fiber is 3 mm; the pre-dispersion is carried out by using a ball mill to collide and disperse the fibers; the pre-dispersed carbon fiber bundle includes 50 to 100 of the modified carbon fibers.

[0024] Preferably, in step S22, the addition amount of the nano-aluminum oxide is 5% to 8% by weight of the epoxy resin matrix; the incorporation amount of the ionic liquid modifier is 0.3% to 0.5% by weight of the epoxy resin matrix.

[0025] Preferably, in step S22, the ionic liquid modifier is selected from hyperbranched ionic liquid or a liquid containing nitrogen ions and boron ions.

[0026] Preferably, in step S23, the thickness of the carbon fiber-reinforced epoxy wear-resistant layer is 1 mm to 2 mm.

[0027] Preferably, in step S3, the permeable polymer containing nano-SiO2 is nano-SiO2 / polyacrylate; the stirring time is 3 minutes to 5 minutes.

[0028] Preferably, between step (S2) and step S3, the construction method further includes:

[0029] S2-3. Construct the interface agent layer

[0030] Apply an interfacial agent on the carbon fiber reinforced epoxy wear-resistant layer to form the interfacial agent layer;

[0031] Then, in step (S3), directly pour the permeable polymer emulsion onto the interfacial agent layer and apply it by brushing.

[0032] More preferably, in step S2-3, the interfacial agent is an aqueous modified silane-based interfacial agent.

[0033] The beneficial effects of the present invention mainly lie in:

[0034] 1. The fiber material reinforced wear-resistant floor structure of the present invention includes a ground concrete base layer, a reinforced concrete leveling layer, a carbon fiber reinforced epoxy wear-resistant layer, and a permeable polymer emulsion sealing layer arranged in sequence from bottom to top. The short-cut carbon fibers are subjected to plasma surface grafting treatment to introduce carboxyl groups on the surface, obtaining modified carbon fibers; the modified carbon fibers are pre-dispersed to obtain pre-dispersed carbon fiber bundles, and the pre-dispersed carbon fiber bundles are encapsulated in a water-soluble PVA film to avoid agglomeration before construction, obtaining encapsulated carbon fiber bundles; nano-aluminum oxide is added to the epoxy resin matrix to improve wear resistance, and an ionic liquid modifier is incorporated to enhance the carbon fiber-epoxy interface bonding force, obtaining a modified epoxy resin matrix; the encapsulated carbon fiber bundles and the modified epoxy resin matrix are mixed, stirred evenly, and then poured onto the reinforced concrete leveling layer and applied by brushing to form a carbon fiber reinforced epoxy wear-resistant layer; the permeable polymer containing nano-SiO2 is stirred evenly with water to form a permeable polymer emulsion, and the permeable polymer emulsion is directly poured onto the carbon fiber reinforced epoxy wear-resistant layer and applied by brushing to form a permeable polymer emulsion sealing layer. Therefore, it has good wear resistance, is not easily aged, has good high-temperature resistance, and strong crack resistance, and is suitable for large-scale popularization and application.

[0035] 2. The fiber material reinforced wear-resistant floor structure of the present invention includes a ground concrete base layer, a reinforced concrete leveling layer, a carbon fiber reinforced epoxy wear-resistant layer, and a permeable polymer emulsion sealing layer arranged in sequence from bottom to top. Short carbon fibers are subjected to plasma surface grafting treatment to introduce carboxyl groups on the surface, obtaining modified carbon fibers; the modified carbon fibers are pre-dispersed to obtain pre-dispersed carbon fiber bundles, and the pre-dispersed carbon fiber bundles are encapsulated in a water-soluble PVA film to avoid agglomeration before construction, obtaining encapsulated carbon fiber bundles; nano-aluminum oxide is added to the epoxy resin matrix to improve wear resistance, and an ionic liquid modifier is incorporated to enhance the carbon fiber-epoxy interface bonding force, obtaining a modified epoxy resin matrix; the encapsulated carbon fiber bundles and the modified epoxy resin matrix are mixed, stirred evenly, and then poured on the reinforced concrete leveling layer for brushing to form a carbon fiber reinforced epoxy wear-resistant layer; the permeable polymer containing nano-SiO2 is added with water and stirred evenly to form a permeable polymer emulsion, and the permeable polymer emulsion is directly poured on the carbon fiber reinforced epoxy wear-resistant layer for brushing to form a permeable polymer emulsion sealing layer. Therefore, it has a clever design, a simple structure, convenient construction, a short construction period, and is suitable for large-scale popularization and application.

[0036] 3. The construction method of the fiber material reinforced wear-resistant floor structure of the present invention includes: S1. Constructing the reinforced concrete leveling layer: Pouring the reinforced concrete leveling layer on the ground concrete base layer; S2. Constructing the carbon fiber reinforced epoxy wear-resistant layer: S21. Subjecting short carbon fibers to plasma grafting treatment to introduce carboxyl groups on the surface, obtaining modified carbon fibers; pre-dispersing the modified carbon fibers to obtain pre-dispersed carbon fiber bundles, and encapsulating the pre-dispersed carbon fiber bundles in a water-soluble PVA film to avoid agglomeration before construction, obtaining encapsulated carbon fiber bundles; S22. Adding nano-aluminum oxide to the epoxy resin matrix to improve wear resistance, and incorporating an ionic liquid modifier to enhance the carbon fiber-epoxy interface bonding force, obtaining a modified epoxy resin matrix; S23. Mixing the encapsulated carbon fiber bundles and the modified epoxy resin matrix, stirring evenly, and then pouring on the reinforced concrete leveling layer for brushing to form a carbon fiber reinforced epoxy wear-resistant layer; S3. Constructing the permeable polymer emulsion sealing layer: Adding water to the permeable polymer containing nano-SiO2 and stirring evenly to form a permeable polymer emulsion, and directly pouring the permeable polymer emulsion on the carbon fiber reinforced epoxy wear-resistant layer for brushing to form a permeable polymer emulsion sealing layer. Therefore, it has convenient construction, a short construction period, and is suitable for large-scale popularization and application.

[0037] These and other objects, features and advantages of the present invention are fully reflected by the following detailed description and drawings, and can be realized by the means, devices and their combinations specifically pointed out in the description of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1It is a partial front sectional view of a specific embodiment of the fiber material-reinforced wear-resistant floor structure of the present invention.

[0039] (Symbol description)

[0040] 1 Ground concrete base layer; 2 Reinforced concrete leveling layer; 3 Carbon fiber-reinforced epoxy wear-resistant layer; 4 Permeable polymer emulsion sealing layer. Specific implementation mode

[0041] To solve the following problems existing in traditional wear-resistant floors: epoxy floors are prone to aging and have poor high-temperature resistance; diamond abrasive floors have insufficient crack resistance and are prone to cracking due to the shrinkage of the base layer; the construction period is long, and multiple coatings and maintenance are required. After a large amount of research and improvement, the inventor provides a fiber material-reinforced wear-resistant floor structure, which has good wear resistance, is not easy to age, has good high-temperature resistance, strong crack resistance, convenient construction and a short construction period.

[0042] Please refer to Figure 1 As shown, the fiber material-reinforced wear-resistant floor structure of the present invention includes a ground concrete base layer 1, a reinforced concrete leveling layer 2, a carbon fiber-reinforced epoxy wear-resistant layer 3 and a permeable polymer emulsion sealing layer 4, wherein:

[0043] The ground concrete base layer 1 is horizontally arranged, the reinforced concrete leveling layer 2 is horizontally arranged on the ground concrete base layer 1, the carbon fiber-reinforced epoxy wear-resistant layer 3 is horizontally arranged on the reinforced concrete leveling layer 2, and the permeable polymer emulsion sealing layer 4 is horizontally arranged on the carbon fiber-reinforced epoxy wear-resistant layer 3;

[0044] The carbon fiber-reinforced epoxy wear-resistant layer 3 is formed by the following method: short carbon fibers are subjected to plasma surface grafting treatment to introduce carboxyl groups on the surface to obtain modified carbon fibers; the modified carbon fibers are pre-dispersed to obtain pre-dispersed carbon fiber bundles, and the pre-dispersed carbon fiber bundles are encapsulated in a water-soluble PVA film to avoid agglomeration before construction to obtain encapsulated carbon fiber bundles; nano-aluminum oxide is added to the epoxy resin matrix to improve wear resistance, and an ionic liquid modifier is incorporated to enhance the carbon fiber-epoxy interface bonding force to obtain a modified epoxy resin matrix; the encapsulated carbon fiber bundles are mixed with the modified epoxy resin matrix, stirred evenly, and then poured on the reinforced concrete leveling layer 2 for brushing to form the carbon fiber-reinforced epoxy wear-resistant layer 3;

[0045] The permeable polymer emulsion sealing layer 4 is formed by the following method: a permeable polymer containing nano-SiO2 is added with water and stirred evenly to form a permeable polymer emulsion, and the permeable polymer emulsion is directly poured on the carbon fiber-reinforced epoxy wear-resistant layer 3 for brushing to form the permeable polymer emulsion sealing layer 4.

[0046] The fiber material-reinforced wear-resistant floor structure may further include any other suitable components. Preferably, the fiber material-reinforced wear-resistant floor structure further includes an interface agent layer, which is horizontally arranged on the carbon fiber-reinforced epoxy wear-resistant layer 3, and the permeable polymer emulsion sealing layer 4 is horizontally arranged on the interface agent layer.

[0047] The present invention also provides a construction method for the above-mentioned fiber material-reinforced wear-resistant floor structure, which includes the following steps:

[0048] S1. Construct the reinforced concrete leveling layer 2

[0049] Pour and vibrate the reinforced concrete leveling layer 2 on the ground concrete base layer 1;

[0050] S2. Construct the carbon fiber-reinforced epoxy wear-resistant layer 3

[0051] S21. Subject the chopped carbon fibers to plasma grafting treatment to introduce carboxyl groups on the surface, obtaining modified carbon fibers; perform pre-dispersion on the modified carbon fibers to obtain pre-dispersed carbon fiber bundles, and encapsulate the pre-dispersed carbon fiber bundles in a water-soluble PVA film to avoid agglomeration before construction, obtaining encapsulated carbon fiber bundles;

[0052] S22. Add nano-aluminum oxide to the epoxy resin matrix to improve wear resistance, and incorporate an ionic liquid modifier to enhance the carbon fiber-epoxy interface bonding force, obtaining a modified epoxy resin matrix;

[0053] S23. Mix the encapsulated carbon fiber bundles with the modified epoxy resin matrix, stir evenly, and then pour and brush on the reinforced concrete leveling layer 2 to form the carbon fiber-reinforced epoxy wear-resistant layer 3;

[0054] S3. Construct the permeable polymer emulsion sealing layer 4

[0055] Stir the permeable polymer containing nano-SiO2 with water evenly to form a permeable polymer emulsion, and directly pour and brush the permeable polymer emulsion on the carbon fiber-reinforced epoxy wear-resistant layer 3 to form the permeable polymer emulsion sealing layer 4.

[0056] In the step S21, the length of the chopped carbon fibers, the process conditions adopted for the pre-dispersion, and the number of the modified carbon fibers included in the pre-dispersed carbon fiber bundles can be determined as needed. Preferably, in the step S21, the length of the chopped carbon fibers is 3 mm; the pre-dispersion is carried out by colliding and dispersing the fibers with a ball mill; the pre-dispersed carbon fiber bundles include 50 to 100 of the modified carbon fibers.

[0057] In the step S22, the addition amount of the nano-aluminum oxide and the incorporation amount of the ionic liquid modifier can be determined as needed. Preferably, in the step S22, the addition amount of the nano-aluminum oxide is 5% to 8% by weight of the epoxy resin matrix; the incorporation amount of the ionic liquid modifier is 0.3% to 0.5% by weight of the epoxy resin matrix.

[0058] In the step S22, the ionic liquid modifier can be any suitable ionic liquid modifier. Preferably, in the step S22, the ionic liquid modifier is selected from hyperbranched ionic liquids or liquids containing nitrogen ions and boron ions.

[0059] In the step S23, the thickness of the carbon fiber reinforced epoxy wear-resistant layer 3 can be determined as needed. Preferably, in the step S23, the thickness of the carbon fiber reinforced epoxy wear-resistant layer 3 is 1 mm to 2 mm.

[0060] In the step S3, the nano-SiO2-containing permeable polymer can be any suitable nano-SiO2-containing permeable polymer, and the stirring time can be determined as needed. Preferably, in the step S3, the nano-SiO2-containing permeable polymer is nano-SiO2 / polyacrylate; the stirring time is 3 minutes to 5 minutes.

[0061] Between the step (S2) and the step S3, the construction method may further include any other suitable steps. Preferably, between the step (S2) and the step S3, the construction method further includes:

[0062] S2-3. Constructing an interface agent layer

[0063] Coating an interface agent on the carbon fiber reinforced epoxy wear-resistant layer 3 to form the interface agent layer;

[0064] Then, in the step (S3), the permeable polymer emulsion is directly poured onto the interface agent layer for coating.

[0065] In the step S2-3, the interface agent can be any suitable interface agent. More preferably, in the step S2-3, the interface agent is a water-based modified silane-based interface agent.

[0066] The present invention also provides a fiber material reinforced wear-resistant floor structure constructed by the construction method of the fiber material reinforced wear-resistant floor structure described above.

[0067] In order to more clearly understand the technical content of the present invention, the following specific examples are given for detailed description. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0068] Example 1

[0069] The ground concrete base layer 1 is poured by a conventional method;

[0070] S1. Construct the reinforced concrete leveling layer 2

[0071] Pour and vibrate the reinforced concrete leveling layer 2 on the ground concrete base layer 1;

[0072] Specifically, the concrete of the reinforced concrete leveling layer 2 (conventional concrete) shall not be hollow. It is required to remove the floating slurry on the surface of the concrete of the ground concrete base layer 1 and rub it with a wooden float; before pouring the concrete of the reinforced concrete leveling layer 2, the surface of the ground concrete base layer 1 shall be comprehensively cleaned and washed with water, and then the same cement slurry as that of the reinforced concrete leveling layer 2 shall be swept on, and the concrete of the reinforced concrete leveling layer 2 shall be poured while sweeping. The concrete shall be vibrated densely, vibrated with a plate vibrator, and vibrated with a vibrating rod at the edges for cooperation, and the concrete troweling operation shall be carried out in a timely manner, and subsequent concrete curing shall be carried out.

[0073] S2. Construct the carbon fiber reinforced epoxy wear-resistant layer 3

[0074] S21. Subject the short-cut carbon fibers (3 mm in length) to plasma grafting treatment to introduce carboxyl groups on the surface to obtain modified carbon fibers; disperse the modified carbon fibers by colliding and dispersing the fibers with a ball mill to obtain pre-dispersed carbon fiber bundles (50 fibers per bundle), and encapsulate the pre-dispersed carbon fiber bundles in a water-soluble PVA film to avoid agglomeration before construction to obtain encapsulated carbon fiber bundles;

[0075] S22. Add nano-aluminum oxide (8% by weight) to the epoxy resin matrix to improve wear resistance (Rockwell hardness ≥ 85), and incorporate hyperbranched ionic liquid (Wuhan Hyperbranched Resin Technology Co., Ltd. - hyperbranched epoxy resin-based ionic liquid) (0.3% by weight) to enhance the carbon fiber-epoxy interface bonding force to obtain a modified epoxy resin matrix;

[0076] S23. Mix the encapsulated carbon fiber bundles with the modified epoxy resin matrix, stir evenly, and then pour and brush it on the reinforced concrete leveling layer 2 with a brushing thickness of 1 mm to form the carbon fiber reinforced epoxy wear-resistant layer 3; during the brushing process, ensure that the modified epoxy resin matrix fully infiltrates the carbon fibers, and compact it with a roller or a squeegee to make the modified epoxy resin matrix and the carbon fibers tightly combined.

[0077] S2-3. Construct the interface agent layer

[0078] Apply modified silane (water-based) interface agent (Bangrun Chemical Technology—KH-550 silane coupling agent aqueous solution) on the carbon fiber reinforced epoxy wear-resistant layer 3 to form an interface agent layer; specifically, use a soft brush to apply the diluted (dilution ratio 1:10) interface agent on the carbon fiber reinforced epoxy wear-resistant layer 3, and the application should be uniform and without omission, and no local accumulation of liquid should be allowed; the dry, water-absorbent carbon fiber reinforced epoxy wear-resistant layer can be treated twice, and the second layer of interface agent can be applied only after the first layer of interface agent is dry.

[0079] S3, construction of permeable polymer emulsion sealing layer 4

[0080] The permeable polymer containing nano-SiO2-nano-SiO 2 / Polyacrylate (BASF-acrylic resin-based nanocomposite material) is added with water and stirred evenly with an electric stirrer for 4 minutes to form a permeable polymer emulsion, which is directly poured on the interface agent layer for brushing to form a permeable polymer emulsion sealing layer 4, thereby sealing the surface pores of the interface agent layer and improving chemical corrosion resistance.

[0081] Thereby, a wear-resistant ground structure A reinforced with fiber materials is obtained.

[0082] Example 2

[0083] The ground concrete base 1 is cast using conventional methods;

[0084] S1, construction of reinforced concrete leveling layer 2

[0085] Pouring a reinforced concrete leveling layer 2 on the ground concrete base 1;

[0086] Specifically, the reinforced concrete leveling layer 2 concrete (conventional concrete) must not be hollow, and the floating slurry on the surface of the ground concrete base 1 must be driven off and rubbed with a wooden trowel; before pouring the reinforced concrete leveling layer 2 concrete, the surface of the ground concrete base 1 must be completely cleaned and rinsed with water, and then the same cement slurry as the reinforced concrete leveling layer 2 is used to sweep the slurry, and the reinforced concrete leveling layer 2 concrete is poured as it is swept. The concrete must be vibrated and compacted, and the edges must be compacted with a flat vibrator, and the concrete must be smoothed in a timely manner, and subsequent concrete maintenance must be carried out.

[0087] S2, construction of carbon fiber reinforced epoxy wear-resistant layer 3

[0088] S21, subjecting chopped carbon fibers (3 mm in length) to plasma grafting treatment, thereby introducing carboxyl groups on the surface to obtain modified carbon fibers; subjecting the modified carbon fibers to collision and breaking up the fibers in a ball mill for pre-dispersion to obtain pre-dispersed carbon fiber bundles (80 fibers per bundle); encapsulating the pre-dispersed carbon fiber bundles in a water-soluble PVA film to avoid agglomeration before construction, thereby obtaining encapsulated carbon fiber bundles;

[0089] S22. Add nano-aluminum oxide (5% by weight) to the epoxy resin matrix to improve wear resistance (Rockwell hardness ≥ 85), and incorporate hyperbranched ionic liquid (Wuhan Hyperbranched Resin Technology Co., Ltd. - hyperbranched epoxy resin-based ionic liquid) (0.5% by weight) to enhance the interfacial bonding force between carbon fiber and epoxy, obtaining a modified epoxy resin matrix.

[0090] S23. Mix the encapsulated carbon fiber bundles with the modified epoxy resin matrix, stir well, and then pour and brush it on the reinforced concrete leveling layer 2 with a brushing thickness of 1.5 mm to form a carbon fiber-reinforced epoxy wear-resistant layer 3; during the brushing process, ensure that the modified epoxy resin matrix fully infiltrates the carbon fiber, and compact it with a roller or a squeegee to make the modified epoxy resin matrix and the carbon fiber closely combined.

[0091] S2-3. Construct the interfacial agent layer

[0092] Brush a modified silane-based (water-based) interfacial agent (Bangrun Chemical Technology - KH-550 silane coupling agent aqueous solution) on the carbon fiber-reinforced epoxy wear-resistant layer 3 to form an interfacial agent layer; specifically, use a soft brush to brush the diluted (dilution ratio 1:8) interfacial agent on the carbon fiber-reinforced epoxy wear-resistant layer 3, the brushing should be uniform and without omission, and local liquid accumulation should not be allowed to form; for the dry and highly water-absorbent carbon fiber-reinforced epoxy wear-resistant layer, it can be treated twice, and the second layer of interfacial agent can be brushed only after the first layer of interfacial agent is dry.

[0093] S3. Construct the permeable polymer emulsion sealing layer 4

[0094] Add water to the permeable polymer-nano SiO₂ / nano polyacrylate (BASF - acrylic resin-based nanocomposite) containing nano-SiO₂ and stir evenly with an electric stirrer for 3 minutes to form a permeable polymer emulsion. Pour the permeable polymer emulsion directly onto the interfacial agent layer and brush it to form a permeable polymer emulsion sealing layer 4, closing the surface pores of the interfacial agent layer and improving chemical corrosion resistance. 2 / polyacrylate (BASF - acrylic resin-based nanocomposite) and stir evenly with an electric stirrer for 3 minutes to form a permeable polymer emulsion. Pour the permeable polymer emulsion directly onto the interfacial agent layer and brush it to form a permeable polymer emulsion sealing layer 4, closing the surface pores of the interfacial agent layer and improving chemical corrosion resistance.

[0095] Thus, a fiber material-reinforced wear-resistant floor structure B is obtained.

[0096] Example 3

[0097] The ground concrete base layer 1 is poured by a conventional method;

[0098] S1. Construct the reinforced concrete leveling layer 2

[0099] Pour and compact the reinforced concrete leveling layer 2 on the ground concrete base layer 1;

[0100] Specifically, the concrete of the reinforced concrete leveling layer 2 (conventional concrete) shall not be hollow. It is required to remove the floating slurry on the surface of the concrete of the ground concrete base layer 1, and rub it with a wooden float to make it rough. Before pouring the concrete of the reinforced concrete leveling layer 2, the surface of the ground concrete base layer 1 shall be thoroughly cleaned and rinsed with water, and then the same cement slurry as that of the reinforced concrete leveling layer 2 shall be used to sweep the slurry, and the concrete of the reinforced concrete leveling layer 2 shall be poured immediately after sweeping. The concrete must be vibrated densely. Use a flat vibrator for vibration, and use a vibrating rod to cooperate with the vibration at the edges. And carry out the concrete finishing operation in a timely manner, and carry out subsequent concrete curing.

[0101] S2. Construct the carbon fiber reinforced epoxy wear-resistant layer 3

[0102] S21. Subject the short-cut carbon fiber (3 mm in length) to plasma grafting treatment to introduce carboxyl groups on the surface and obtain modified carbon fiber; disperse the modified carbon fiber by collision and dispersion of the fiber with a ball mill to obtain a pre-dispersed carbon fiber bundle (100 fibers per bundle), and encapsulate the pre-dispersed carbon fiber bundle in a water-soluble PVA film to avoid agglomeration before construction and obtain an encapsulated carbon fiber bundle;

[0103] S22. Add nano-aluminum oxide (6% by weight) to the epoxy resin matrix to improve wear resistance (Rockwell hardness ≥ 85), and incorporate hyperbranched ionic liquid (Wuhan Hyperbranched Resin Technology Co., Ltd. - hyperbranched epoxy resin-based ionic liquid) (0.4% by weight) to enhance the carbon fiber-epoxy interface bonding force to obtain a modified epoxy resin matrix;

[0104] S23. Mix the encapsulated carbon fiber bundle with the modified epoxy resin matrix, stir well, and then pour it on the reinforced concrete leveling layer 2 for brushing. The brushing thickness is 2 mm to form the carbon fiber reinforced epoxy wear-resistant layer 3; during the brushing process, ensure that the modified epoxy resin matrix fully infiltrates the carbon fiber, and use a roller or a scraper to compact it to make the modified epoxy resin matrix and the carbon fiber closely combined.

[0105] S2-3. Construct the primer layer

[0106] Brush the modified silane-based (water-based) primer (Bangrun Chemical Technology - KH-550 silane coupling agent aqueous solution) on the carbon fiber reinforced epoxy wear-resistant layer 3 to form a primer layer; specifically, use a soft brush to brush the diluted (dilution ratio 1:8) primer on the carbon fiber reinforced epoxy wear-resistant layer 3. The brushing should be uniform and without omission, and local liquid accumulation should not be allowed to form; for the dry and highly water-absorbent carbon fiber reinforced epoxy wear-resistant layer, it can be treated twice. The second primer can be brushed only after the first primer is dry.

[0107] S3. Construct the permeable polymer emulsion sealing layer 4

[0108] The permeable polymer-nano SiO2 containing nano SiO22 After adding water to polyacrylate (BASF - acrylate - based nanocomposite), use an electric stirrer to stir for 5 minutes until evenly mixed to form a permeable polymer emulsion. Pour the permeable polymer emulsion directly onto the primer layer for brushing to form a permeable polymer emulsion sealing layer 4, which seals the surface pores of the primer layer and improves chemical corrosion resistance.

[0109] Thus, a fiber - material - reinforced wear - resistant floor structure C is obtained.

[0110] Due to the excellent properties of wear - resistant fibers, such as high hardness and modulus (resisting surface cutting wear), excellent toughness (absorbing impact energy and avoiding brittle fracture), low friction coefficient (reducing energy loss at the contact interface), and chemical corrosion resistance (resisting the destruction of fiber structure by oil / acid / solvent), common wear - resistant fiber materials include basalt fiber, sisal, modified coconut shell fiber, and silicon carbide (SiC) fiber. Therefore, by applying fiber materials to building floors, the building floors of the present invention have the characteristics of good wear resistance, not easy to age, good high - temperature resistance, strong crack resistance, convenient construction, and short construction period.

[0111] Therefore, the present invention provides a more wear - resistant floor structure, which is a fiber - material - reinforced wear - resistant floor structure. The floor structure sequence from top to bottom is a permeable polymer emulsion sealing layer, a carbon - fiber - reinforced epoxy wear - resistant layer, a reinforced concrete leveling layer, and a floor concrete base layer. The floor concrete base layer is poured on the ground foundation. Through this construction method, the wear resistance of the floor and the construction convenience can be effectively improved.

[0112] In summary, the fiber - material - reinforced wear - resistant floor structure of the present invention has good wear resistance, is not easy to age, has good high - temperature resistance, strong crack resistance, is ingeniously designed, has a simple structure, is convenient for construction, has a short construction period, and is suitable for large - scale popularization and application.

[0113] Thus, it can be seen that the purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the above - mentioned principles, the implementation modes can be modified arbitrarily. Therefore, the present invention includes all modified implementation modes based on the spirit and scope of the claims.

Claims

1. A fiber material-reinforced wear-resistant floor structure, including a ground concrete base layer, the ground concrete base layer is horizontally arranged, characterized in that, The fiber material-reinforced wear-resistant floor structure further includes a reinforced concrete leveling layer, a carbon fiber-reinforced epoxy wear-resistant layer, and a permeable polymer emulsion sealing layer, wherein: The reinforced concrete leveling layer is horizontally arranged on the floor concrete base layer, the carbon fiber-reinforced epoxy wear-resistant layer is horizontally arranged on the reinforced concrete leveling layer, and the permeable polymer emulsion sealing layer is horizontally arranged on the carbon fiber-reinforced epoxy wear-resistant layer; The carbon fiber-reinforced epoxy wear-resistant layer is formed by the following method: short carbon fibers are subjected to plasma surface grafting treatment to introduce carboxyl groups on the surface to obtain modified carbon fibers; the modified carbon fibers are pre-dispersed to obtain pre-dispersed carbon fiber bundles, and the pre-dispersed carbon fiber bundles are encapsulated in a water-soluble PVA film to avoid agglomeration before construction to obtain encapsulated carbon fiber bundles; nano-aluminum oxide is added to the epoxy resin matrix to improve wear resistance, and an ionic liquid modifier is incorporated to enhance the carbon fiber-epoxy interface bonding force to obtain a modified epoxy resin matrix; the encapsulated carbon fiber bundles are mixed with the modified epoxy resin matrix, stirred evenly, and then poured on the reinforced concrete leveling layer for brushing to form the carbon fiber-reinforced epoxy wear-resistant layer; The permeable polymer emulsion sealing layer is formed by the following method: a permeable polymer containing nano-SiO2 is added with water and stirred evenly to form a permeable polymer emulsion, and the permeable polymer emulsion is directly poured on the carbon fiber-reinforced epoxy wear-resistant layer for brushing to form the permeable polymer emulsion sealing layer.

2. The fiber material-reinforced wear-resistant floor structure according to claim 1, characterized in that, The fiber material-reinforced wear-resistant floor structure further includes an interfacial agent layer, the interfacial agent layer is horizontally arranged on the carbon fiber-reinforced epoxy wear-resistant layer, and the permeable polymer emulsion sealing layer is horizontally arranged on the interfacial agent layer.

3. A construction method of a fiber material-reinforced wear-resistant floor structure according to claim 1, characterized in that, Including the following steps: S1. Construct the reinforced concrete leveling layer Pour and vibrate the reinforced concrete leveling layer on the floor concrete base layer; S2. Construct the carbon fiber-reinforced epoxy wear-resistant layer S21. Subject short carbon fibers to plasma grafting treatment to introduce carboxyl groups on the surface to obtain modified carbon fibers; Pre-disperse the modified carbon fibers to obtain pre-dispersed carbon fiber bundles, and encapsulate the pre-dispersed carbon fiber bundles in a water-soluble PVA film to avoid agglomeration before construction to obtain encapsulated carbon fiber bundles; S22. Add nano-aluminum oxide to the epoxy resin matrix to improve wear resistance, and incorporate an ionic liquid modifier to enhance the carbon fiber-epoxy interface bonding force to obtain a modified epoxy resin matrix; S23. Mix the encapsulated carbon fiber bundles with the modified epoxy resin matrix, stir evenly, and then pour on the reinforced concrete leveling layer for brushing to form the carbon fiber-reinforced epoxy wear-resistant layer; S3. Construct the permeable polymer emulsion sealing layer Add water to a permeable polymer containing nano-SiO2 and stir evenly to form a permeable polymer emulsion, and directly pour the permeable polymer emulsion on the carbon fiber-reinforced epoxy wear-resistant layer for brushing to form the permeable polymer emulsion sealing layer.

4. The construction method according to claim 3, characterized in that, In the step S21, the length of the chopped carbon fiber is 3 mm; the pre-dispersion is carried out by colliding and dispersing the fibers with a ball mill; the pre-dispersed carbon fiber bundle includes 50 to 100 of the modified carbon fibers.

5. The construction method according to claim 3, characterized in that, In the step S22, the addition amount of the nano-aluminum oxide is 5% to 8% by weight of the epoxy resin matrix; the incorporation amount of the ionic liquid modifier is 0.3% to 0.5% by weight of the epoxy resin matrix.

6. The construction method according to claim 3, characterized in that, In the step S22, the ionic liquid modifier is selected from hyperbranched ionic liquids or liquids containing nitrogen ions and boron ions.

7. The construction method according to claim 3, characterized in that, In the step S23, the thickness of the carbon fiber reinforced epoxy wear-resistant layer is 1 mm to 2 mm.

8. The construction method according to claim 3, characterized in that, In the step S3, the permeable polymer containing nano-SiO2 is nano-SiO2 / polyacrylate; the stirring time is 3 minutes to 5 minutes.

9. The construction method according to claim 3, characterized in that, Between the step (S2) and the step S3, the construction method further includes: S2-3. Constructing an interfacial agent layer Coating an interfacial agent on the carbon fiber reinforced epoxy wear-resistant layer to form the interfacial agent layer; Then, in the step (S3), the permeable polymer emulsion is directly poured onto the interfacial agent layer for coating.

10. The construction method according to claim 9, characterized in that, In the step S2-3, the interfacial agent is a water-based modified silane-based interfacial agent.

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