Construction method for wear-resistant static-free factory building floor engineering

Abstract

The invention discloses a wear-resistant static-free factory building floor engineering construction method, which adopts the following technical scheme: 1, aiming at the characteristic of misfire, a main material is common misfire material dolomite, and other materials are inorganic non-metallic materials, so that metal substances are prevented from being mixed, and the purpose of not generating sparks during friction is achieved; 2, aiming at the anti-static characteristic, flat steel arrangement is used for replacing a complex pre-buried conductive net, meanwhile, conductive powder is doped into a floor material, so that the base layer has uniform distribution and stable and long-term conductive performance, static electricity is led out through a grounding terminal after combination of the flat steel arrangement and the conductive powder, the whole base layer has perfect anti-static performance, construction is simple and flexible, the construction process is simplified, and the construction cost is reduced. The construction efficiency is improved; and 3, aiming at the wear resistance, different from the traditional wear-resistant ground in which wear-resistant aggregate is spread before final setting of concrete, the surface layer uses a single-component concrete sealing curing agent.

Description

Technical Field

[0001] The invention belongs to the field of building construction, and in particular relates to a wear-resistant and static-free factory floor engineering construction method. Background Art

[0002] Industrial plants are crucial infrastructure supporting manufacturing and production activities, providing businesses with a suitable location for production and processing. Plant floors must possess specific characteristics and functions to meet the demands of industrial environments. They must also possess excellent wear resistance to withstand the frequent use of machinery and personnel. Friction and collisions on ordinary floors can generate sparks and static electricity, which can lead to fires and explosions.

[0003] The current floor is difficult to avoid sparks caused by friction, is prone to static sparks, has poor wear resistance and a short service life, and it is difficult to solve the above three problems at the same time. Summary of the Invention

[0004] The present invention provides a wear-resistant and static-free factory floor engineering construction method to solve the technical problems mentioned in the background technology.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: a wear-resistant and static-free factory floor construction method, comprising the following steps: Step 1: Base layer processing Mark a 1m elevation line along the wall and the location for laying grounding hot-dip galvanized flat steel on the concrete surface. Mark the grounding lead wires with colors and keep records. Step 2: Laying the grounding body Lay hot-dip galvanized flat steel between the insulating base layer and the static conductive layer. In rooms with an area of ​​less than 50 square meters, lay a circle around the wall 200 mm away. Step 3: Laying the leveling layer Use mortar mixed with 3% conductive powder to make mortar cakes and punch reinforcement. Use a trowel to spread the mortar into 20mm square mortar cakes with a spacing of 2m×2m and arranged in a plum blossom shape. The top of the mortar cake is the elevation of the finished surface. Then use a leveling layer containing conductive powder for pouring. Step 4: Polish the surface Use a long ruler to remove the exudate from the concrete surface. If there is laitance on the surface, use a disc-type mechanical trowel to evenly destroy the laitance on the concrete surface. When the concrete is initially set, use a disc-type mechanical trowel to bring the cement paste to the surface. Step 5: Cutting and filling the seams After the construction of the non-fire-resistant anti-static concrete is completed, in order to prevent the concrete base from cracking, the column axis should be cut, and the cutting line should not be greater than one every 6m×6m, and the expansion joint should be 3-5mm wide. The thickness of the non-fire-resistant anti-static concrete should be 2 / 3 and not less than 20mm. If the distance between the cutting lines of the two columns is greater than 6m or the area between the cutting lines of the two columns exceeds 40 square meters, an expansion joint should be cut between the two lines or the middle of the columns, and then filled with conductive caulking glue; Step 6: Grounding Installation Clean the concrete surface to remove any obvious dust, spray or roll the single-component concrete sealing and curing agent onto the ground, and grind it for at least two hours. The ground must be kept moist during this period to ensure that the curing agent can fully penetrate. Connect the lead wire to the reserved grounding terminal on the wall or ground by single-sided full welding.

[0006] Preferably, in step one, it is also necessary to clean up the solidified gravel and mortar; cut the protruding steel bars and steel pipes; check the ground base against the elevation line to see if there are any higher places that need to be chiseled, and chisel and clean the unqualified places; before the next process is constructed, the base is roughened.

[0007] Preferably, in step 2, for rooms with an area of ​​less than 100 square meters and greater than 50 square meters, in addition to laying a circle 200 mm away from the wall, a full-length flat steel is laid on the central axis; for rooms larger than 100 square meters, the flat steels are laid in a tic-tac-toe grid with a spacing of 6m×6m, and the overlapped joints of the flat steels are connected by single-sided full welding; similarly, the grounding lead wire and the galvanized flat steel are also connected by single-sided full welding; one grounding point is set within 50 square meters, and two grounding points are required for 50 to 100 square meters; for rooms larger than 100 square meters, one grounding point is added for every additional 50 square meters.

[0008] Preferably, in step three, the proportion of the leveling layer concrete material is as follows: the non-refractory grade dolomite model 0.5mm-1.0mm accounts for 20%, the non-refractory grade dolomite model 1.0mm-1.5mm accounts for 10%, the slag silicate cement model uses a grade greater than or equal to 425 and accounts for 65%, and the conductive powder accounts for 3%.

[0009] Preferably, in step three, the leveling layer concrete material is stirred first, and after the stirring is completed, the conductive powder is added and the stirring is continued for about 5 minutes. After stirring evenly, it is transported to the required ground position by a cart, and the pushing distance is as short as possible, not exceeding 3 minutes, and the road surface is ensured to be flat during transportation to avoid unreasonable vibration that accelerates the precipitation of cement and aggregate; after being transported to the designated location, it is quickly spread on the ground base, and then vibrated with a concrete vibrator, and then scraped along the marked reinforcement with a 2m long scraper, with a thickness of 40mm, and the flatness is controlled within 2m with an allowable deviation of 4mm.

[0010] Preferably, in step four, after the cement slurry is brought to the surface with a disc mechanical trowel, it is cured for 3 days and then mechanically troweled and polished. For the first time, use a coarse diamond of No. 60 to 90 for rough grinding, adding water while grinding and cleaning the cement slurry. For the second time, after the hardened layer absorbs the moisture below, the disc mechanical trowel is used to polish it again. Note that the mechanical trowel operation is carried out crisscross, and the troweling construction is repeated as in the second time until the ground is smooth without scratches and the surface layer is neat and free of particles; surface polishing operation: the final finishing processing of the hardened wear-resistant layer is completed once using a mechanical trowel combined with manual troweling, and fine grinding is repeated to achieve different surface finish and anti-slip requirements.

[0011] The beneficial effects of the present invention are as follows: the floor construction method of the present application adopts 1. In view of the non-fire-resistant property, the main material is dolomite, a common non-fire-resistant material, and the other materials are also inorganic non-metallic materials. Strict control is carried out during the construction process to avoid mixing in metal substances, so as to achieve the purpose of friction without sparks; 2. In view of the anti-static property, flat steel is arranged instead of a complex pre-buried conductive mesh, and at the same time, conductive powder is added to the floor material to make the base layer have a uniform distribution, stable and long-lasting conductive performance. The combination of the two then conducts static electricity through the grounding terminal, so that the base layer as a whole has perfect anti-static performance, the construction is simple and flexible, the construction process is simplified, and the construction efficiency is improved. The mixed use of conductive powder and concrete makes the base layer as a whole have a uniform distribution, stable and long-lasting static conductive performance, and combined with the pre- The corrosion-resistant galvanized flat steel static conductive mesh laid first is connected to the grounding terminal pre-buried by the general contractor to conduct static electricity to avoid the generation of static sparks; 3. In terms of wear resistance, unlike traditional wear-resistant floors that spread wear-resistant aggregates before the final setting of the concrete, the surface layer uses a single-component concrete sealing and curing agent; the reaction principle is that the sealing and curing agent and the by-product of cement hydration, calcium hydroxide, react chemically to generate silica gel to block the micropores inside the concrete. In this way, it seals, hardens and further enhances the wear resistance and conducts static electricity to avoid the generation of static sparks; the present application combines the above three points to form multiple functions that meet the requirements of wear resistance, non-flammable and explosion-proof, and static electricity-free, effectively preventing the ground from generating sparks and static electricity during friction or collision, extending the service life of the floor and reducing maintenance costs.

[0012] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention; the main purpose and other advantages of the present invention can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the structural layering of an embodiment of the present invention; Figure 2 It is a schematic diagram of the grounding body laying plan.

[0014] Figure numerals: 1. concrete surface; 2. hot-dip galvanized flat steel; 3. leveling layer; 4. single-component concrete sealing and curing agent. DETAILED DESCRIPTION

[0015] The technical solutions of the present invention are described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solutions of the present invention, and cannot be interpreted as limiting the technical solutions of the present invention.

[0016] Combine Figure 1 and Figure 2 A wear-resistant and static-free factory floor construction method comprises the following steps: Step 1: Base layer processing Mark the 1m elevation line along the wall and the location for laying the grounding hot-dip galvanized flat steel on the concrete surface. Mark the grounding lead wires with colors and keep records. Step 2: Laying the grounding body Lay hot-dip galvanized flat steel between the insulating base layer and the static conductive layer. In rooms with an area of ​​less than 50 square meters, lay a circle around the wall 200 mm away. Step 3: Laying the leveling layer Use mortar mixed with 3% conductive powder to make mortar cakes and punch reinforcement. Use a trowel to spread the mortar into 20mm square mortar cakes with a spacing of 2m×2m and arranged in a plum blossom shape. The top of the mortar cake is the elevation of the finished surface. Then use a leveling layer containing conductive powder for pouring. Step 4: Polish the surface Use a long ruler to remove the exudate from the concrete surface. If there is laitance on the surface, use a disc-type mechanical trowel to evenly destroy the laitance on the concrete surface. When the concrete is initially set, use a disc-type mechanical trowel to bring the cement paste to the surface. Step 5: Cutting and filling the seams After the construction of the non-fire-resistant anti-static concrete is completed, in order to prevent the concrete base from cracking, the column axis should be cut, and the cutting line should not be greater than one every 6m×6m, and the expansion joint should be 3-5mm wide. The thickness of the non-fire-resistant anti-static concrete should be 2 / 3 and not less than 20mm. If the distance between the cutting lines of the two columns is greater than 6m or the area between the cutting lines of the two columns exceeds 40 square meters, an expansion joint should be cut between the two lines or the middle of the columns, and then filled with conductive caulking glue; Step 6: Grounding Installation Clean the concrete surface to remove any obvious dust, spray or roll the single-component concrete sealing and curing agent onto the ground, and grind it for at least two hours. The ground must be kept moist during this period to ensure that the curing agent can fully penetrate. Connect the lead wire to the reserved grounding terminal on the wall or ground by single-sided full welding.

[0017] Preferably, in step one, it is also necessary to clean up the solidified gravel and mortar; cut the protruding steel bars and steel pipes; check the ground base against the elevation line to see if there are any higher places that need to be chiseled, and chisel and clean the unqualified places; before the next process is constructed, the base is roughened.

[0018] Preferably, in step 2, for rooms with an area of ​​less than 100 square meters and greater than 50 square meters, in addition to laying a circle 200 mm away from the wall, a full-length flat steel is laid on the central axis; for rooms larger than 100 square meters, the flat steels are laid in a tic-tac-toe grid with a spacing of 6m×6m, and the overlapped joints of the flat steels are connected by single-sided full welding; similarly, the grounding lead wire and the galvanized flat steel are also connected by single-sided full welding; one grounding point is set within 50 square meters, and two grounding points are required for 50 to 100 square meters; for rooms larger than 100 square meters, one grounding point is added for every additional 50 square meters.

[0019] Preferably, in step three, the proportion of the leveling layer concrete material is as follows: the non-refractory grade dolomite model 0.5mm-1.0mm accounts for 20%, the non-refractory grade dolomite model 1.0mm-1.5mm accounts for 10%, the slag silicate cement model uses a grade greater than or equal to 425 and accounts for 65%, and the conductive powder accounts for 3%.

[0020] Preferably, in step three, the leveling layer concrete material is stirred first, and after the stirring is completed, the conductive powder is added and the stirring is continued for about 5 minutes. After stirring evenly, it is transported to the required ground position by a cart, and the pushing distance is as short as possible, not exceeding 3 minutes, and the road surface is ensured to be flat during transportation to avoid unreasonable vibration that accelerates the precipitation of cement and aggregate; after being transported to the designated location, it is quickly spread on the ground base, and then vibrated with a concrete vibrator, and then scraped along the marked reinforcement with a 2m long scraper, with a thickness of 40mm, and the flatness is controlled within 2m with an allowable deviation of 4mm.

[0021] Preferably, in step four, after the cement slurry is brought to the surface with a disc mechanical trowel, it is cured for 3 days and then mechanically troweled and polished. For the first time, use a coarse diamond of No. 60 to 90 for rough grinding, adding water while grinding and cleaning the cement slurry. For the second time, after the hardened layer absorbs the moisture below, the disc mechanical trowel is used to polish it again. Note that the mechanical trowel operation is carried out crisscross, and the troweling construction is repeated as in the second time until the ground is smooth without scratches and the surface layer is neat and free of particles; surface polishing operation: the final finishing processing of the hardened wear-resistant layer is completed once using a mechanical trowel combined with manual troweling, and fine grinding is repeated to achieve different surface finish and anti-slip requirements.

[0022] The beneficial effects of the present invention are as follows: the floor construction method of the present application adopts 1. In view of the non-fire-resistant property, the main material is dolomite, a common non-fire-resistant material, and the other materials are also inorganic non-metallic materials. Strict control is carried out during the construction process to avoid mixing in metal substances, so as to achieve the purpose of friction without sparks; 2. In view of the anti-static property, flat steel is arranged instead of a complex pre-buried conductive mesh, and at the same time, conductive powder is added to the floor material to make the base layer have a uniform distribution, stable and long-lasting conductive performance. The combination of the two then conducts static electricity through the grounding terminal, so that the base layer as a whole has perfect anti-static performance, the construction is simple and flexible, the construction process is simplified, and the construction efficiency is improved. The mixed use of conductive powder and concrete makes the base layer as a whole have a uniform distribution, stable and long-lasting static conductive performance, and combined with the pre- The corrosion-resistant galvanized flat steel static conductive mesh laid first is connected to the grounding terminal pre-buried by the general contractor to conduct static electricity to avoid the generation of static sparks; 3. In terms of wear resistance, unlike traditional wear-resistant floors that spread wear-resistant aggregates before the final setting of the concrete, the surface layer uses a single-component concrete sealing and curing agent; the reaction principle is that the sealing and curing agent and the by-product of cement hydration, calcium hydroxide, react chemically to generate silica gel to block the micropores inside the concrete. In this way, it seals, hardens and further enhances the wear resistance and conducts static electricity to avoid the generation of static sparks; the present application combines the above three points to form multiple functions that meet the requirements of wear resistance, non-flammable and explosion-proof, and static electricity-free, effectively preventing the ground from generating sparks and static electricity during friction or collision, extending the service life of the floor and reducing maintenance costs.

[0023] In this example, this construction method reduced construction difficulty, reduced labor input, and also saved construction materials to a certain extent. Labor costs were reduced by approximately 19%, and the overall construction period of this sub-project was shortened by approximately 12 days, saving 87,500 yuan in construction costs, 25,500 yuan in material and machinery costs, and a total construction cost savings of approximately 113,000 yuan, achieving good economic benefits.

[0024] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention.

Claims

1. A wear-resistant and static-free factory floor construction method, characterized by: The following steps are included: Step 1: Base layer processing Mark a 1m elevation line along the wall and mark the laying position of the grounding hot-dip galvanized flat steel (2) on the concrete surface (1). Mark the grounding lead wires with colors and keep records; Step 2: Laying the grounding body Lay the hot-dip galvanized flat steel (2) between the insulating base layer and the static conductive layer in a room with an area of ​​less than 50 square meters, and lay it in a circle 200 mm away from the wall; Step 3: Laying the leveling layer (3) Use mortar mixed with 3% conductive powder to make mortar cakes and punch reinforcements. Use a trowel to spread the mortar into 20mm square mortar cakes with a spacing of 2m×2m and arranged in a plum blossom shape. The top of the mortar cake is the elevation of the finished surface. Then use a leveling layer (3) containing conductive powder for pouring. Step 4: Polish the surface Use a long ruler to remove the exudate from the concrete surface. If there is laitance on the surface, use a disc-type mechanical trowel to evenly destroy the laitance on the concrete surface. When the concrete is initially set, use a disc-type mechanical trowel to bring the cement paste to the surface. Step 5: Cutting and filling the seams After the construction of the non-fire-resistant anti-static concrete is completed, in order to prevent the concrete base from cracking, the column axis should be cut, and the cutting line should not be greater than one every 6m×6m, and the expansion joint should be 3-5mm wide. The thickness of the non-fire-resistant anti-static concrete should be 2 / 3 and not less than 20mm. If the distance between the cutting lines of the two columns is greater than 6m or the area between the cutting lines of the two columns exceeds 40 square meters, an expansion joint should be cut between the two lines or the middle of the columns, and then filled with conductive caulking glue; Step 6: Grounding Installation Clean the concrete surface to remove any dust. Spray or roll the single-component concrete sealing and curing agent (4) onto the ground and grind it for at least two hours. During this time, the ground must be kept moist to ensure that the curing agent can fully penetrate. Connect the lead wire to the ground terminal reserved on the wall or ground by single-sided full welding.

2. A wear-resistant and static-free factory floor construction method according to claim 1, characterized in that: In step one, it is also necessary to clean up the solidified gravel and mortar; cut the protruding steel bars and steel pipes; check the ground base against the elevation line to see if there are any higher places that need to be chiseled, and chisel and clean the unqualified places; before the next construction process, the base should be roughened.

3. A wear-resistant and static-free factory floor construction method according to claim 2, characterized in that: In step 2, for rooms with an area of ​​less than 100 square meters and larger than 50 square meters, in addition to laying a circle 200mm around the wall, a full-length flat steel bar is laid on the central axis; for rooms larger than 100 square meters, the flat steel bars are laid in a tic-tac-toe grid with a spacing of 6m×6m, and the overlapped joints of the flat steel bars are connected with a single-sided full welding method; similarly, the grounding lead wire and the galvanized flat steel are also connected with a single-sided full welding method; one grounding point is set up within 50 square meters, and two grounding points are required for 50 to 100 square meters; for rooms larger than 100 square meters, one grounding point is added for every additional 50 square meters.

4. A wear-resistant and static-free factory floor construction method according to claim 3, characterized in that: In step 3, the concrete material ratio of the leveling layer (3) is as follows: the non-refractory grade dolomite model 0.5mm-1.0mm accounts for 20%, the non-refractory grade dolomite model 1.0mm-1.5mm accounts for 10%, the slag silicate cement model uses a grade greater than or equal to 425 and accounts for 65%, and the conductive powder accounts for 3%.

5. A wear-resistant and static-free factory floor construction method according to claim 4, characterized in that: In step 3, the concrete material of the leveling layer (3) is first stirred, and after the stirring is completed, the conductive powder is added and the stirring is continued for about 5 minutes. After the stirring is uniform, it is transported to the desired ground position by a trolley. The pushing distance is as short as possible, not exceeding 3 minutes, and the road surface is ensured to be flat during the transportation process to avoid unreasonable vibration that accelerates the precipitation of cement and aggregate; after being transported to the designated location, it is quickly spread on the ground base, and then vibrated with a concrete vibrator, and then scraped flat along the marked reinforcement with a 2m long scraper. The thickness is 40mm, and the flatness is controlled within 2m with an allowable deviation of 4mm.

6. A wear-resistant and static-free factory floor construction method according to claim 5, characterized in that: In step 4, after the cement slurry is brought to the surface with a disc mechanical trowel, it is cured for 3 days and then mechanically troweled and smoothed. The first time, use coarse diamonds No. 60 to 90 for rough grinding, adding water and cleaning the cement slurry while grinding. The second time, after the hardened layer absorbs the moisture below, the disc mechanical trowel is used to smooth it again. Note that the mechanical trowel operation should be carried out crisscross, and the operation should be repeated as the second troweling construction until the ground is smooth without scratches and the surface layer is neat and free of particles; surface polishing operation: the final finishing processing of the hardened wear-resistant layer is completed by using a mechanical trowel combined with manual troweling, and repeated fine grinding is performed to achieve different surface finish and anti-slip requirements.

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