CN115822212A - Gypsum-based assembled floor module, floor system and construction method thereof - Google Patents

Abstract

The invention provides a gypsum-based assembled floor module, a floor system and a construction method thereof. The gypsum-based assembled terrace module comprises a main body layer, wherein the main body layer comprises a plurality of unit modules and a filling layer which are formed by pouring, the plurality of unit modules are spliced and arranged, the unit modules are of square block structures, the side walls of the unit modules are provided with first channels, the first channels are of annular structures and penetrate through the peripheral side wall surfaces of the unit modules, the surfaces, facing the main body layer, of the unit modules are provided with second channels, and the second channels are located at the top angles of the unit modules and communicated with the first channels; and the filling layer is filled in the first channel and the second channel so as to splice and fix the plurality of unit modules. The structure setting like this can be directly at job site concatenation unit module, and need not to carry out the big sand of cement and make level the construction or the gypsum base is made level the construction of making level automatically, can solve the big sand of cement effectively like this and make level the construction or the gypsum base is made level the difficult problem that the construction exists of making level automatically.

Description

Gypsum-based assembled floor module, floor system and construction method thereof

Technical Field

The invention belongs to the technical field of terraces, and particularly relates to a gypsum-based assembled terrace module, a terrace system and a construction method of the terrace system.

Background

The traditional cement large sand leveling construction process has high field labor intensity, the leveled ground is generally cracked and hollowed, the acceptance standard of customers is difficult to achieve, the river sand is more and more difficult to purchase, and particularly, the high-quality river sand meeting the national standard requirement of construction sand GB/T14684-2022 is rare.

According to the existing popular gypsum-based self-leveling mortar lifting and leveling construction process, although river sand is hardly used in materials, construction conditions of a construction site/project site are severe, and the quality of site constructors is uneven, so that various problems possibly occur on the finished surface of site construction, for example, bubbles exist on the surface, the surface color is not uniform, the surface strength is not high, powder falls from the surface, cracks and the like, and the requirements of customers are difficult to meet.

The southern area of China does not supply heat in winter, and a gypsum-based assembled floor module, a floor system and a construction method thereof for non-floor heating are required to be developed according to the situation.

Disclosure of Invention

The invention aims to provide a gypsum-based fabricated floor module, a floor system and a construction method thereof, which are used for solving the problems of cement sand leveling construction or gypsum-based self-leveling construction in the prior art and are applied to areas which do not supply heat in the south of China.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a gypsum base assembled terrace module, gypsum base assembled terrace module includes the main part layer, the main part layer includes:

the unit modules are spliced and arranged and are of square block structures, first channels are arranged on the side walls of the unit modules and are of annular structures and penetrate through the side wall surfaces on the periphery of the unit modules, second channels are arranged on the surfaces, facing the main body layer, of the unit modules and are positioned at the top corners of the unit modules and communicated with the first channels;

and the filling layer is filled in the first channel and the second channel so as to splice and fix the unit modules.

In an optional embodiment of the present invention, the second channel is a square channel, and the square channel penetrates through two adjacent edges at the top corner of the unit module;

the side length of the square channel is 10mm-20mm.

In an alternative embodiment of the present invention, the first passage is located at a middle position of the side wall of the unit module.

In an optional embodiment of the invention, the thickness of the unit module is 20mm-150mm;

the first channel is a square channel, one side of the square channel and the corresponding side face of the unit module are positioned on the same plane, and the size of the square channel in the thickness direction of the unit module is 10-20 mm.

In an optional embodiment of the invention, the thickness of the unit module is 20mm-150mm;

the first channel is a semicircular channel, the diameter edge of the semicircular channel and the corresponding side surface of the unit module are positioned on the same plane, and the diameter of the semicircular channel is 10mm-20mm.

In an optional embodiment of the invention, the thickness of the unit module is 20mm-150mm; the first channel is a triangular channel, one side of the triangular channel and the corresponding side face of the unit module are positioned on the same plane, and the maximum size of the triangular channel along the thickness direction of the unit module is 10-20 mm.

In an optional embodiment of the present invention, the gypsum-based fabricated floor module further includes a terrazzo surface layer and a heat preservation bottom layer, the terrazzo surface layer is disposed on one surface of the main body layer, and the heat preservation bottom layer is disposed on the other side of the main body layer, which faces away from the terrazzo surface layer.

The invention also provides a terrace system which comprises the gypsum-based assembled terrace module, a construction base layer, a leveling layer and an adhesive layer, wherein the leveling layer is arranged on the surface of the construction base layer, and a main body layer in the gypsum-based assembled terrace module is fixedly connected to the surface, back to the construction base layer, of the leveling layer through the adhesive layer.

The invention also provides a construction method of the terrace system, which comprises the following steps:

the method comprises the following steps that firstly, gypsum-based self-leveling slurry is poured and molded to obtain a square block structure, annular first channels are arranged on the periphery of the side wall of the square block structure, and second channels communicated with the first channels are arranged at the vertex angles of one surface of the square structure to obtain a unit module;

step two, repeating the step one to obtain a plurality of unit modules;

and thirdly, paving a layer of adhesive on one surface of each unit module, splicing the unit modules, fixing the spliced unit modules on the surface of the leveling layer through the adhesive, pouring gap filling slurry into the second channel through the first channel, and hardening to obtain the gypsum-based fabricated floor module.

In an optional embodiment of the present invention, in the first step, the gypsum-based self-leveling slurry comprises building gypsum powder, cement, a polycarboxylic acid water reducing agent, calcium sulfate dihydrate and flexible fibers, wherein,

the mass ratio of the building gypsum powder to the cement is (970-1000) to (1-30), the dosage of the polycarboxylic acid water reducing agent is 0.1-0.13 percent of the total mass of the building gypsum powder and the cement, the dosage of the calcium sulfate dihydrate is 1-1.5 percent of the total mass of the building gypsum powder and the cement, and the dosage of the flexible fiber is 0.3-0.4 percent of the total mass of the building gypsum powder and the cement.

Has the advantages that:

the gypsum-based fabricated terrace module comprises a main body layer, wherein the main body layer comprises a plurality of unit modules and a filling layer which are formed in a pouring mode, the unit modules are spliced and arranged and are of square block structures, the side walls of the unit modules are provided with first channels, the first channels are of annular structures and penetrate through the peripheral side wall surfaces of the unit modules, the surfaces, facing the main body layer, of the unit modules are provided with second channels, and the second channels are located at the top angles of the unit modules and communicated with the first channels; and the filling layer is filled in the first channel and the second channel so as to splice and fix the plurality of unit modules. The structure setting like this can be directly at job site concatenation unit module, and need not to carry out the big sand of cement and make level the construction or the gypsum base is made level the construction of making level automatically, can solve the big sand of cement effectively like this and make level the construction or the gypsum base is made level the difficult problem that the construction exists of making level automatically. The gypsum-based assembled floor module can be widely applied to areas without heating in the south of China.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:

FIG. 1 is a schematic cross-sectional view of an embodiment of a gypsum-based fabricated floor module according to the present invention;

FIG. 2 is a schematic view of the main body layer of FIG. 1 from another perspective;

FIG. 3 is a schematic structural view of a single unit module in FIG. 2;

FIG. 4 is a schematic structural view of a single unit module in FIG. 2 from another perspective;

FIG. 5 is a schematic cross-sectional view of a single unit module of FIG. 2 from another perspective;

FIG. 6 is a schematic cross-sectional view of another embodiment of the single unit module of FIG. 2;

FIG. 7 is a schematic cross-sectional view of another embodiment of the single unit module of FIG. 2;

FIG. 8 is a schematic structural diagram of still another embodiment of a single unit module in FIG. 2;

FIG. 9 is a schematic structural diagram of another embodiment of a single unit module in FIG. 2;

FIG. 10 is a schematic cross-sectional view of another embodiment of the gypsum-based fabricated floor module of the present invention;

FIG. 11 is a schematic cross-sectional view of a terrace system according to an embodiment of the present invention;

fig. 12 is a schematic cross-sectional view of another embodiment of the terrace system of the invention.

Reference numbers in the figures: 1-a bulk layer; 11-a unit module; 111-a first channel; 112-a second channel; 12-a filling layer; 2-terrazzo surface layer; 3-heat preservation bottom layer; 4-an adhesive layer; 5-leveling layer; 6, constructing a base layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.

The present invention will be described in detail with reference to examples. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In order to solve the problems of cement sand leveling construction or gypsum-based self-leveling construction in the prior art, the invention provides a gypsum-based fabricated floor module.

As shown in fig. 1 to 5, the gypsum-based fabricated floor module of the present invention includes a main body layer 1, the main body layer 1 includes a plurality of unit modules 11 and a filling layer 12, the plurality of unit modules 11 are spliced, the unit modules 11 are square block structures (including square block structures and rectangular block structures), the side walls of the unit modules 11 are provided with first channels 111, the first channels 111 are annular structures and penetrate through the side wall surfaces around the unit modules 11, the surface of the unit modules 11 facing the main body layer 1 is provided with second channels 112, the second channels 112 are located at the top corners of the unit modules 11 and are communicated with the first channels 111; the filling layer 12 is filled in the first channel 111 and the second channel 112 to splice and fix the plurality of unit modules 11. The structure setting like this can be directly at job site concatenation unit module 11, and need not to carry out the big sand of cement and make level the construction or the gypsum base is made level the construction of making level by oneself, can solve the big sand of cement effectively like this and make level the construction or the gypsum base is made level the difficult problem that the construction exists by oneself. The gypsum-based assembled floor module can be widely applied to areas without heating in the south of China.

It should be noted that, when the unit modules 11 are spliced on the construction site, firstly, the unit modules 11 are spliced on the construction site, then gap filling slurry is added into the second channel 112, the gap filling slurry enters the first channel 111, gaps between the unit modules 11 are filled, the filling layer 12 is formed after hardening, two adjacent unit modules 11 are firmly connected, so that the overall firmness and stability of the main body layer 1 can be effectively ensured, and adverse effects on the unit modules 11 caused by the fact that materials enter the gaps between the unit modules 11 during the construction of the next process can be avoided.

The unit module 11 of the main body layer 1 in the gypsum-based fabricated floor module is formed by pouring, and compared with the traditional cement and large sand on-site mixed filling construction process, the gypsum-based fabricated floor module has the following advantages: the product quality is guaranteed, the quality of raw materials used in the traditional process field is difficult to guarantee, particularly, the mud content of sand is difficult to control, the possibility of hollowing and cracking in the later period is high, and the occurrence of hollowing and cracking can be effectively avoided through the modularized construction. Compared with the self-leveling construction process, the pouring forming process has the following remarkable advantages: the construction operation is relatively simple, the pouring is carried out inside a company, the pouring condition is greatly improved compared with that of a self-leveling construction site, secondly, pouring technical workers are fixed, the company technical personnel can train the pouring technical workers before pouring, the product quality is detected, and the product quality can be powerfully ensured, namely, the unit modules 11 are produced in an engineering mode and belong to a full finished product, and the floor heating pipes can be paved on the construction site only by splicing the workers like building blocks; self-leveling belongs to semi-finished products, the site construction process is complex, and the requirements on the construction quality and the construction level of workers are high: and the treatment of the foundation layer on site is required to be standardized, the coating of the interface agent is required to meet the requirements, the water consumption during pouring is strictly controlled, the site is required to be sealed during construction, cutting is required at the later stage and the like, each working detail must be strictly operated according to the rules, the engineering quality is guaranteed, otherwise various quality problems such as low strength, powder falling, cracking, hollowing and the like can occur.

The unit module 11 is formed by pouring inorganic materials (such as cement-based self-leveling, gypsum-based self-leveling or grouting materials and the like), and the compressive strength and the flexural strength of the unit module 11 are respectively greater than or equal to 20MPa and 8MPa. That is, the material of gypsum-based fabricated floor module is inorganic material, and compared with the existing traditional module (mostly adopting organic material), the gypsum-based fabricated floor module of the invention has the following advantages: (1) The inorganic material gypsum-based assembled floor module has strong durability (the light-density organic material floor module has low strength, is easy to deform under the load action, particularly under the long-time load action, and has high self-strength and strong bearing capacity; (2) The inorganic material gypsum-based assembled floor module has good heat dissipation performance (the good heat dissipation performance of the inorganic material floor module mainly means that the heat dissipation performance of the inorganic material floor module is obviously higher than that of an organic light plate), and the good heat dissipation performance means that when other conditions are consistent (such as the laying density of floor heating pipes, the specification of the floor heating pipes, the temperature of water entering a house, the water flow of the water entering the house and the heat preservation performance of a room of a user are consistent), the heat dissipation efficiency of the floor heating pipes paved by the inorganic material floor module with good heat dissipation performance is higher, the temperature rise speed of the room is high, the heat preservation temperature is high, and the cost of the user is lower when the same heat preservation effect is achieved; (3) The inorganic material gypsum-based fabricated floor module has strong overall binding power (the light organic material floor module has low strength and is an organic material, and the binding power between the light organic material floor module and other inorganic materials is not high due to the characteristics of the light organic material floor module and the organic material floor module in two aspects); (4) Inorganic material gypsum base assembled terrace module factor of safety is high, and light organic material module perhaps can burn combustion-supportingly when meeting high temperature or high temperature naked light, or can emit the very strong poisonous dust of irritability or produce toxic gas, inorganic material gypsum base assembled terrace module is no matter meet high temperature or high temperature naked light, can not burn combustion-supportingly, self can not produce the poisonous dust of irritability or gas yet, simultaneously the material of gypsum base assembled terrace module if adopting is gypsum base self-leveling, the joint water in the dihydrate gypsum can release automatically under high temperature, there is certain help to putting out a fire.

The arrangement of the first and second channels 111, 112 allows for a better and faster filling of the gaps between the spread unit modules 11. The shapes of the first channel 111 and the second channel 112 are not limited and are within the scope of the present invention.

In an alternative embodiment of the present invention, the second channel 112 is a square channel, and the square channel penetrates through two adjacent edges at the top corner of the unit module 11, that is, two sides of the square channel are two adjacent edges at the top corner of the unit module 11, so that the second channel 112 is conveniently opened.

Optionally, the sides of the square channel are 10mm-20mm (e.g., 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, and the interval between any two endpoints).

Of course, in other embodiments, as shown in fig. 8, the second channels 112 may be provided in two, and two second channels 112 are respectively located at two adjacent top corners of the unit modules 11, so that the gap filling slurry can fill the gap between the spread unit modules 11 through the two second channels 112, which makes the filling operation faster, and can sufficiently fill the gap, thereby improving the overall stability of the main body layer 1.

Of course, in other embodiments, as shown in fig. 9, four second channels 112 may be provided, and two second channels 112 are respectively located at four corners of the unit modules 11, so that the gap filling slurry can fill the gap between the spread unit modules 11 through the four second channels 112, which makes the filling operation faster, and can sufficiently fill the gap, thereby improving the overall stability of the main body layer 1.

In an alternative embodiment of the invention, the first channel 111 is located in the middle of the side walls of the unit modules 11, which ensures a better and faster filling of the gaps between the spread unit modules 11.

In an embodiment of the present invention, as shown in fig. 4 and 5, the first channel 111 is a square channel (e.g., a square channel or a rectangular channel) and surrounds the periphery of the unit module 11, and one side of the square channel and the corresponding side of the unit module 11 are in the same plane. Optionally, the thickness of the unit module 11 is 20mm-150mm (such as 20mm, 30mm, 40mm, 50mm, 80mm, 100mm, 120mm, 150mm and the interval value between any two endpoint values); the dimension of the square passage in the thickness direction of the unit module 11 is 10mm-20mm (e.g., 10mm, 12mm, 14mm, 16mm, 18mm, 20mm and the interval value between any two endpoint values).

In another embodiment of the present invention, as shown in fig. 6, the first channel 111 is a semicircular channel, and the diameter side of the semicircular channel is in the same plane as the corresponding side surface of the unit module 11. Optionally, the semicircular channel has a diameter of 10mm to 20mm (e.g., 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, and the interval between any two endpoints).

In another embodiment of the present invention, as shown in fig. 7, the first channel 111 is a triangular channel, and one side of the triangular channel and the corresponding side of the unit module 11 are in the same plane. Optionally, the maximum dimension of the triangular channel in the thickness direction of the unit module 11 is 10mm-20mm (e.g., 10mm, 12mm, 14mm, 16mm, 18mm, 20mm and the interval value between any two endpoint values).

Of course, in other embodiments, the shape of the first channel 111 may be other reasonable shapes, and is within the scope of the present invention.

Further, in an optional embodiment of the present invention, the gypsum-based fabricated floor module of the present invention further includes a terrazzo surface layer 2, the terrazzo surface layer 2 is disposed on a surface of the main body layer 1, specifically, the terrazzo surface layer 2 is directly laid on the surface of the main body layer 1, the thickness of the terrazzo surface layer 2 is 5-15mm (for example, 5mm, 7mm, 10mm, 12mm, 15mm and an interval value between any two end point values), wherein the terrazzo of the terrazzo surface layer 2 may be various terrazzos in the specification of "terrazzo for architectural decoration" JC/T507-2022. Terrazzo surface course 2 is laid on the surface of main part layer 1, can show hardness and the wearability that improves gypsum base assembled terrace module, and pleasing to the eye degree also improves simultaneously (just like the ceramic tile face), follow-up also need not laying the ceramic tile.

As shown in fig. 10, in the embodiment of the present invention, the gypsum-based fabricated floor module further includes a thermal insulation bottom layer 3, and the thermal insulation bottom layer 3 is disposed on the other side of the main body layer 1 opposite to the terrazzo surface layer 2. The bottom heat-insulating layer can be formed by laying organic heat-insulating boards or inorganic heat-insulating mortar with the fire-proof grade of A1.

As shown in fig. 11, the present invention further provides a terrace system, the terrace system includes the gypsum-based assembled terrace module, a construction base 6, a leveling layer 5 and an adhesive layer 4, the leveling layer 5 is disposed on the surface of the construction base 6, and the main body layer 1 of the gypsum-based assembled terrace module is fixedly connected to the surface of the leveling layer 5, which faces away from the construction base 6, through the adhesive layer 4. The main body layer 1 in the gypsum-based assembly type terrace module is fixed by gluing, so that the gypsum-based assembly type terrace module is simple to operate and good in firmness. The leveling material can be replaced by a loose inorganic building material (the loose building material is self-hardened as a whole along with the prolonging of time, such as M15 ground mortar in GB/T25181-2019, which meets the construction requirement), and during construction, workers firstly level loose materials in bulk with the help of equipment, then coat adhesive on the back of the module, and then lay the unit module 11.

Optionally, the material of the leveling layer 5 can be selected from thermal insulation and sound insulation mortar having thermal insulation and sound insulation functions (thermal insulation and sound insulation mortar meeting the national standard of "building thermal insulation mortar" GB/T20473-2021, DW thermal insulation and sound insulation mortar meeting the national standard of "expanded and vitrified bead thermal insulation mortar" GB/T2600-2010, or BW thermal insulation and sound insulation mortar in the international standard of "expanded and vitrified bead light mortar" JG/T283-2010).

It should be noted that the thickness of the leveling layer 5 is mainly determined according to the overall flatness of the construction base layer 6, if the difference between the lowest point and the highest point of the construction base layer 6 is 10mm, the thickness of the leveling layer 5 is not less than 10mm, optionally 15mm, and if the difference between the lowest point and the highest point is 20mm, the thickness of the leveling layer 5 is not less than 20mm, optionally 25mm. The construction base layer 6 is generally a building ground concrete layer or a mortar layer and is an inherent structure of a building, the thickness of the construction base layer is determined according to the visual angle condition, and the construction base layer is required to be firm and clean.

In another embodiment of the terrace system of the present invention, as shown in fig. 12, the gypsum-based fabricated terrace module further includes a thermal insulation bottom layer 3, and the thermal insulation bottom layer 3 is fixedly connected to the surface of the leveling layer 5 opposite to the construction base layer 6 through an adhesive layer 4. The gypsum-based fabricated floor module can have a good heat preservation effect due to the arrangement of the heat preservation bottom layer 3. Optionally, the material of the thermal insulation bottom layer 3 may be inorganic thermal insulation mortar, and certainly, organic thermal insulation materials such as fire-proof grade A1 polyurethane foam, polystyrene board, EPS, XPS, phenolic foam, etc. may also be selected.

Further, the material of the heat preservation bottom layer 3 can be selected as a sound insulation material, such as heat preservation and sound insulation mortar meeting the national standard of "building heat preservation mortar" GB/T20473-2021, or DW heat preservation and sound insulation mortar meeting the national standard of "expanded and vitrified micro-bead heat preservation and heat insulation mortar" GB/T2600-2010, or BW heat preservation and sound insulation mortar in the line of "expanded and vitrified micro-bead light mortar" JG/T283-2010

It should be noted that the thickness of the insulating bottom layer 3 depends on the user's requirement, and optionally, the thickness of the insulating bottom layer 3 is not less than 20mm, preferably 20-40mm (for example, 20mm, 25mm, 30mm, 35mm, 40mm, and the interval value between any two endpoint values).

The invention also provides a construction method of the floor system, which comprises the following steps:

step one, gypsum-based self-leveling slurry is poured and molded to obtain a square block structure, an annular first channel 111 is formed in the periphery of the side wall of the square block structure, and a second channel 112 communicated with the first channel 111 is formed in the top corner of one surface of the square structure to obtain a unit module 11;

step two, repeating the step one to obtain a plurality of unit modules 11;

and thirdly, paving a layer of adhesive on one surface of each unit module 11, splicing the plurality of unit modules 11, fixing the spliced unit modules on the surface of the leveling layer 5 through the adhesive, pouring gap filling slurry into the second channel 112 through the first channel 111, and hardening to obtain the gypsum-based fabricated floor module.

In an optional embodiment of the present invention, in the second step, after hardening, a layer of terrazzo is laid on the surface of the unit module 11, which is the terrazzo surface layer 2.

It should be noted that, when elevation leveling construction is performed on the ground with the requirement of heat preservation and sound insulation, if the gypsum-based fabricated terrace module is a heat preservation and sound insulation module (as shown in fig. 12), the gypsum-based fabricated terrace module includes a heat preservation bottom layer 3, and the heat preservation bottom layer 3 is made of a sound insulation material, the ground without the requirement of heat preservation and sound insulation can be selected to perform too high leveling; if gypsum base assembled terrace module is non-heat preservation sound insulation module, does not include heat preservation bottom 3 promptly (as shown in fig. 11), the material that self has the heat preservation sound insulation function can be chooseed for use to the material of making level that adopts during the construction, and the workman makes level the soft material of making level in bulk that self has the heat preservation sound insulation function according to the design elevation under the help of equipment earlier during the construction, then scribbles the adhesive at the module back, carries out paving of unit module 11 after that, carries out paving of terrazzo surface course 2 at last.

In one embodiment of the invention, in the first step, the gypsum-based self-leveling slurry comprises building gypsum powder, cement, a polycarboxylic acid water reducing agent, calcium sulfate dihydrate and flexible fibers, wherein the mass ratio of the building gypsum powder to the cement is (970-1000) (1-30), the polycarboxylic acid water reducing agent is used in an amount of 0.1-0.13% (such as 0.1%, 0.11%, 0.12%, 0.13% and intervals between any two endpoints) of the total mass of the building gypsum powder and the cement, the calcium sulfate dihydrate is used in an amount of 1-1.5% (such as 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5% and intervals between any two endpoints) of the total mass of the building gypsum powder and the cement, and the flexible fibers are used in an amount of 0.3-0.4% (such as 0.3%, 0.32%, 0.34%, 0.36%, 0.38%, 0.4% and intervals between any two endpoints) of the total mass of the building gypsum powder and the cement.

Optionally, the cement is Portland cement with a strength rating of 42.5 (i.e., PO42.5 cement), and the flexible fibers are polypropylene fibers with a length of 10-50mm (e.g., 10mm, 20mm, 30mm, 40mm, 50mm, and any interval therebetween).

In order to improve the pouring forming speed when the module is poured, a proper amount of accelerating agent is added into the traditional gypsum-based self-leveling slurry while the retarder is removed, so that the condensation and heating time of the gypsum-based self-leveling pouring material is shortened to 15 minutes from the original 3 hours. In order to improve the breaking strength and the impact resistance of the module, a proper amount of polypropylene fiber is added into the gypsum-based self-leveling slurry, so that the breaking strength, the impact resistance and the damage bearing deflection (wherein the damage bearing deflection is linear displacement in a direction vertical to an axis when the axis of a component is damaged or linear displacement in a direction vertical to a middle surface of a plate shell when the temperature of the component is changed under stress or nonuniform temperature) can be obviously improved.

In the specific embodiment of the invention, the formula of the gypsum-based self-leveling slurry is as follows: building gypsum powder: 970-1000kg; PO42.5 cement: 0-30kg; the two parts are adjusted according to different actual conditions, the total amount is 1t, and the polycarboxylic acid water reducing agent: 1.0-1.3kg/t; calcium sulfate dihydrate: 10-15kg/t; 3-4kg/t of polypropylene fiber (length is 10-50 mm).

The traditional gypsum-based self-leveling slurry formula is as follows: building gypsum powder: 950kg-1000kg; PO42.5 cement: 0-50kg; the two parts are adjusted according to different actual conditions, and the total amount is 1t; 1.0-1.8kg/t of polycarboxylic acid water reducing agent; 1.2-2.0kg/t of vegetable oil defoaming agent; protein retarder: 0.5-1.0kg/t; sodium gluconate: 0.1-0.3kg/t;400 viscosity cellulose: 0.15-0.4 kg/t.

The cost analysis by the conventional formulation and the modified formulation of the present invention is as follows: the improved formula of the invention does not use 400-viscosity cellulose (47 yuan/kg), protein retarder (25.5 yuan/kg) and common sodium gluconate (6.5 yuan/kg), but newly added dihydrate gypsum (50 yuan/ton) and fiber (9.8 yuan/kg), and the cost of each ton of materials can be saved by about 63 yuan/ton after improvement. Because non-ground heating coil module ground and surface all are the plane, require to descend to slurry self defoaming ability, the platform of placing the mould when pouring simultaneously is vibration platform, so can subtract the defoaming agent. Meanwhile, expensive retarder is replaced by cheap gypsum coarse coagulant dihydrate gypsum, so that the demolding time is reduced to less than 25min from the original 2.5-3h, and the labor cost and the field use cost during module pouring are greatly reduced.

The gypsum-based fabricated floor module, the floor system and the construction method thereof according to the present invention will be described in detail with reference to the following embodiments.

Example 1

The formula of the gypsum-based self-leveling slurry adopted in the embodiment is as follows:

building gypsum powder: 970k; PO42.5 cement: 30kg; polycarboxylic acid water reducing agent: 1.0kg; calcium sulfate dihydrate: 10kg; 3kg of polypropylene fiber.

The construction method of the terrace system comprises the following specific steps:

(1) The gypsum-based self-leveling slurry adopting the formula is poured and molded to obtain a square block structure, an annular first channel is formed on the periphery of the side wall of the square block structure, and a second channel communicated with the first channel is formed at the vertex angle of one surface of the square structure to obtain a unit module;

(2) Repeating the first step to obtain a plurality of unit modules;

(3) And paving a layer of adhesive on one surface of each unit module, splicing the plurality of unit modules, fixing the spliced unit modules on the surface of the leveling layer through the adhesive, pouring gap filling slurry into the second channel through the first channel, and hardening to obtain the terrace system.

Example 2

This example differs from example 1 only in the amount of specific materials in the gypsum-based self-leveling slurry formulation, namely: building gypsum powder: 980k; PO42.5 cement: 20kg; polycarboxylic acid water reducing agent: 1.1kg; calcium sulfate dihydrate: 12kg; 3.2kg of polypropylene fibers. The other operations were the same as in example 1.

Example 3

This example differs from example 1 only in the amount of specific materials in the gypsum-based self-leveling slurry formulation, namely: building gypsum powder: 990k; PO42.5 cement: 10kg; polycarboxylic acid water reducing agent: 1.2kg; calcium sulfate dihydrate: 14kg; 3.6kg of polypropylene fibers. The other operations were the same as in example 1.

Example 4

This example differs from example 1 only in the amount of specific materials in the gypsum-based self-leveling slurry formulation, namely: building gypsum powder: 999k is calculated; PO42.5 cement: 1kg; polycarboxylic acid water reducing agent: 1.3kg; calcium sulfate dihydrate: 15kg; 4kg of polypropylene fiber. The other operations were the same as in example 1.

Comparative example 1

The comparative example uses a traditional gypsum-based self-leveling slurry formula, namely building gypsum powder: 950kg; PO42.5 cement: 50kg; 1.0kg of polycarboxylic acid water reducing agent; 1.2kg of vegetable oil defoaming agent; protein retarder: 0.5kg; sodium gluconate: 0.1kg;400 viscosity cellulose: 0.15kg.

The unit modules (20 cm. Times.20 cm) prepared in examples 1 to 4 and comparative example 1 were subjected to a free fall test of a height of 1m (flat concrete with a ground surface of C30, test block 20 cm. Times.20 cm face down upon free fall). The unit module test block of comparative example 1 was split into many small pieces by this test (multiple sets of tests were performed with consistent test results); the unit module test pieces manufactured in examples 1 to 4 were intact or cracked (the test piece with one crack of the product was still a whole because the test piece had fibers).

Further, using a drop weight device (composed of a steel base equipped with a horizontal adjustment knob and a vertical steel frame on which an electromagnet is suspended, a guide pipe, and a metal drop weight of (1. + -. 0.015) kg) as impact resistance in the JC/T985-2017 line, each of examples 1-4 and comparative example 1 produced a unit module having a thickness of 20mm, and after it was completely dried, a free drop impact test of a height of 1000mm was carried out using the drop weight device. The test results showed that the unit module prepared in comparative example 1 was divided into five parts after the test, while the unit modules prepared in examples 1 to 4 were intact, i.e., the unit module prepared in comparative example 1 failed in the 10J impact test, and the unit modules prepared in examples 1 to 4 failed in the 10J impact test.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a gypsum base assembled terrace module, a serial communication port, gypsum base assembled terrace module includes the main part layer, the main part layer includes:

the unit modules are spliced and arranged and are of square block structures, first channels are arranged on the side walls of the unit modules and are of annular structures and penetrate through the side wall surfaces on the periphery of the unit modules, second channels are arranged on the surfaces, facing the main body layer, of the unit modules and are positioned at the top corners of the unit modules and communicated with the first channels;

and the filling layer is filled in the first channel and the second channel so as to splice and fix the unit modules.

2. The gypsum-based fabricated floor module of claim 1, wherein the second channel is a square channel that extends through two adjacent edges at a top corner of the unit module;

the side length of the square channel is 10mm-20mm.

3. The gypsum-based fabricated floor module of claim 1, wherein the first channel is located at a position intermediate the sidewalls of the unit modules.

4. The gypsum-based fabricated floor module of claim 3, wherein the thickness of the unit modules is 20mm-150mm;

the first channel is a square channel, one side of the square channel and the corresponding side face of the unit module are positioned on the same plane, and the size of the square channel in the thickness direction of the unit module is 10-20 mm.

5. The gypsum-based fabricated floor module of claim 3, wherein the thickness of the unit modules is 20mm-150mm;

the first channel is a semicircular channel, the diameter edge of the semicircular channel and the corresponding side surface of the unit module are positioned on the same plane, and the diameter of the semicircular channel is 10mm-20mm.

6. The gypsum-based fabricated floor module of claim 3, wherein the thickness of the unit modules is 20mm-150mm;

the first channel is a triangular channel, one side of the triangular channel and the corresponding side face of the unit module are positioned on the same plane, and the maximum size of the triangular channel along the thickness direction of the unit module is 10-20 mm.

7. The gypsum-based fabricated floor module of any one of claims 1-6, further comprising a terrazzo facing layer disposed on a surface of the body layer, and an insulating bottom layer disposed on another side of the body layer facing away from the terrazzo facing layer.

8. A terrace system, comprising the gypsum-based fabricated terrace module according to any one of claims 1 to 7, a construction base, a leveling layer and an adhesive layer, wherein the leveling layer is arranged on the surface of the construction base, and the main layer of the gypsum-based fabricated terrace module is fixedly connected to the surface of the leveling layer, which faces away from the construction base, through the adhesive layer.

9. A construction method of the floor system of claim 8, characterized in that the construction method comprises the following steps:

step one, gypsum-based self-leveling slurry is poured and molded to obtain a square block structure, an annular first channel is arranged on the periphery of the side wall of the square block structure, and a second channel communicated with the first channel is arranged at the vertex angle of one surface of the square structure to obtain a unit module;

step two, repeating the step one to obtain a plurality of unit modules;

and thirdly, paving a layer of adhesive on one surface of each unit module, splicing the unit modules, fixing the spliced unit modules on the surface of the leveling layer through the adhesive, pouring gap filling slurry into the second channel through the first channel, and hardening to obtain the gypsum-based fabricated floor module.

10. The method of claim 9, wherein in step one, the gypsum-based self-leveling slurry comprises building landplaster, cement, a polycarboxylate water reducer, calcium sulfate dihydrate, and flexible fiber, wherein,

the mass ratio of the building gypsum powder to the cement is (970-1000) to (1-30), the dosage of the polycarboxylic acid water reducing agent is 0.1-0.13 percent of the total mass of the building gypsum powder and the cement, the dosage of the calcium sulfate dihydrate is 1-1.5 percent of the total mass of the building gypsum powder and the cement, and the dosage of the flexible fiber is 0.3-0.4 percent of the total mass of the building gypsum powder and the cement.

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