CN112679182B - Preparation and construction method of heat-preservation sound-insulation floor heating terrace - Google Patents
Preparation and construction method of heat-preservation sound-insulation floor heating terrace Download PDFInfo
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- CN112679182B CN112679182B CN202011554590.4A CN202011554590A CN112679182B CN 112679182 B CN112679182 B CN 112679182B CN 202011554590 A CN202011554590 A CN 202011554590A CN 112679182 B CN112679182 B CN 112679182B
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- leveling
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- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 15
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- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 10
- 238000009960 carding Methods 0.000 claims description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 235000015165 citric acid Nutrition 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000011863 silicon-based powder Substances 0.000 claims description 5
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
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- 229910021538 borax Inorganic materials 0.000 claims description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 4
- 239000000347 magnesium hydroxide Substances 0.000 claims description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 3
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- 239000004327 boric acid Substances 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
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- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
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- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
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- 238000002791 soaking Methods 0.000 claims description 2
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims 2
- BDOYKFSQFYNPKF-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O BDOYKFSQFYNPKF-UHFFFAOYSA-N 0.000 claims 1
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Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Floor Finish (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation and construction method of a heat-preservation and sound-insulation floor heating terrace, wherein the floor heating terrace comprises a gypsum module, a phosphogypsum self-leveling mortar layer and a phosphorus-magnesium self-leveling colorful terrazzo layer, the floor heating terrace is arranged on a floor surface base layer, the floor surface base layer comprises a floor surface and wall foot wall surfaces around the floor surface, the floor heating terrace is sequentially laminated on the floor surface, and the gypsum module, the phosphogypsum self-leveling mortar layer and the phosphorus-magnesium self-leveling colorful terrazzo layer are respectively stacked from bottom to top: gypsum module, ardealite self-leveling mortar layer and phosphorus-magnesium self-leveling colorful terrazzo layer; the gypsum module is provided with a groove, and the depth of the groove is larger than or equal to the diameter of the ground heating pipe. The ardealite heat preservation effect of the invention is about 10 percent of energy saving compared with the traditional cement mortar or concrete product. Phosphogypsum is an industrial byproduct, and a large amount of the industrial byproduct can be consumed by the phosphogypsum module and the phosphogypsum self-leveling; the service life of the finished ground heating terrace can reach more than ten years, and the finished ground heating terrace has better durability.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to a preparation and construction method of a heat-preservation and sound-insulation floor heating terrace.
Background
The ground heating floor is a floor with a ground heating function, is widely applied in China, is most commonly applied in construction, and is a wet construction method and a traditional ground heating laying method which are the most mature process. After a floor heating water pipe is usually laid, the floor heating pipe needs to be wrapped and fixed by concrete, and then floor materials such as floors, tiles and the like are laid on the concrete.
The dry-type floor heating is a novel floor heating mode relative to the existing wet-type floor heating structure. The dry-type floor heating module (plate) is adopted for laying, the pea stone cement backfilling is not needed, the surface decoration materials such as the floor or the floor tiles can be directly laid on the surface, and the dry-type floor heating module has the advantages of no floor height occupation, quicker temperature rise, energy saving floor heating, comfortable floor, convenient construction and the like. The functional floor decorating material is commonly used for electric heating or hydrothermal construction, concrete is not required to be cast in situ, a plastic module prefabricated in a factory is adopted, the module is provided with a groove, after the module is paved and assembled, a water pipe is clamped in the groove of the module, then a self-leveling material is paved on the water pipe, and the surface of the module is paved with materials such as floors or tiles, and is also called as a functional floor decorating material, so that the functional floor decorating material can be quickly, economically and effectively flat, firm or decorative floors.
The plastic module and the metal and heat insulation material composite module used at present belong to organic materials, are inflammable and poor in fire resistance, are easy to age, have short service life and are generally less than 7 years, and repair can bring about great construction waste to cause environmental pollution and seriously affect the use and life of owners; and the cement module has larger mass and poorer heat preservation and sound insulation performance.
Common surface layer materials such as ceramic tiles, wood floors, epoxy and the like are easy to be affected with damp and bred with fungi, the floor is expanded and arched, noise is produced when the floor is trampled, and notches of the floor are broken; the skirting has the problems of leakage and the like, and has the problems of infirm adhesion, cracking, warping and the like with the gypsum-based material. The traditional terrace materials such as self-leveling materials taking epoxy and polyurethane as base materials have the problems of high manufacturing cost, easy shelling, no environmental protection and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation and construction method of a heat-insulation and sound-insulation floor heating terrace, which can solve the problems of high manufacturing cost, low preparation efficiency and short service life in the prior art.
The invention is realized by the following technical scheme.
The invention provides a preparation method of a heat-preservation and sound-insulation ground heating terrace, which comprises a gypsum module, a phosphogypsum self-leveling mortar layer and a phosphorus-magnesium self-leveling colorful terrazzo layer, wherein the preparation method of the gypsum module comprises the following steps:
s1: taking the neutralized phosphogypsum by mass as a unit, calcining and grinding the neutralized phosphogypsum at 130-160 ℃ to obtain phosphogypsum powder A with the fineness of 200-500 meshes;
s2: adding the phosphogypsum powder A into a stirrer, adding water, stirring to obtain slurry, enabling the fluidity of the slurry to reach 200-300 mm, and then filling into a mould to obtain a gypsum module;
the phosphogypsum self-leveling mortar comprises the following components in parts by mass:
500-1000 parts of phosphogypsum powder B, 1-100 parts of retarder and 100-400 parts of aggregate;
the preparation method of the phosphogypsum self-leveling mortar comprises the following steps:
uniformly mixing the phosphogypsum powder B, the retarder and the aggregate according to the mass part ratio, adding the mixture into a stirrer, adding water into the stirrer after water is used for stirring, and enabling the fluidity of the mixture to reach 260-300 mm to obtain the phosphogypsum self-leveling mortar with the setting time of 0.5-2.0 h;
the phosphorus-magnesium self-leveling color terrazzo mortar comprises the following components in parts by mass:
90-150 parts of magnesium phosphate cement, 2-20 parts of an additive, 0-30 parts of an admixture, 50-100 parts of aggregate, 0-5 parts of pigment and 3-10 parts of colored stone;
the preparation method of the phosphorus-magnesium self-leveling colored terrazzo mortar comprises the following steps:
uniformly mixing magnesium phosphate cement, an additive, an admixture, a pigment and an aggregate according to the mass ratio, adding water into a stirrer, stirring, paving after stirring for 2-5 min, and then scattering colored stones to obtain the phosphorus-magnesium self-leveling colored terrazzo mortar.
Preferably, the phosphogypsum powder B is prepared by calcining and grinding neutralized phosphogypsum at a high temperature of 800-850 ℃ and has the fineness of 200-500 meshes;
the retarder comprises the following components in parts by mass: the retarder compounded by citric acid, sodium tripolyphosphate, sodium hexametaphosphate and ethylene diamine tetraacetic acid is mixed according to the mass ratio of 1-1.6: 0.7-3: 0.6-2.1, and the fineness is 150 meshes-300 meshes;
the aggregate is sand processed by screening, shaping and dedusting procedures, and the fineness of the aggregate is 10-80 meshes.
Preferably, the retarder compounded by sodium hexametaphosphate and disodium ethylene diamine tetraacetate consists of the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate according to the mass ratio of 0.5-2: 1-1.7.
Preferably, the magnesium phosphate cement is a mixture of dead burned magnesium oxide and dihydrogen phosphate, the ratio of magnesium oxide to dihydrogen phosphate being 1 to 4.5: 1; the dead burned magnesia is magnesium hydroxide or magnesite calcined at the temperature of more than 1600 ℃, the magnesia content is more than 88 percent, and the fineness is 120 to 400 meshes; the dihydric phosphate is one or more of ammonium dihydrogen phosphate, potassium dihydrogen phosphate and sodium dihydrogen phosphate, the content of the dihydric phosphate is more than 85 percent, and the fineness is 120 to 400 meshes;
the admixture comprises a retarder and an antifoaming agent, wherein the mass content of the retarder is 47-77%, the mass content of the antifoaming agent is 23-53%, the retarder is borax or boric acid, and the fineness is 120-400 meshes; the defoaming agent is an organic silicon powder defoaming agent;
the admixture is a mixture of metakaolin and fly ash, the mass ratio of the metakaolin to the fly ash is 1-3.3: 1-6.2, and the fineness is 200-500 meshes;
the aggregate is sand processed by screening, shaping and dedusting procedures, and the fineness of the aggregate is 10-80 meshes.
Preferably, the pigment is an inorganic mineral pigment with fineness of 100 to 400 meshes, and the activity of the inorganic mineral pigment is required to be lower than that of magnesium oxide; the colored stones are natural colored stones, and the particle size is 3-10 mm.
A construction method of a heat-preservation and sound-insulation floor heating terrace comprises the following steps:
s1: preparation before laying of floor heating terrace:
after the floor surface and the wall body are cleaned, the floor surface flatness of 1m is corrected by using a leveling ruler 2 The internal height difference is less than or equal to 5 mm; popping out a control line to form a construction surface, removing the projecting parts of a floor panel and a wall surface, filling a pit groove of the floor panel with phosphogypsum self-leveling mortar, pasting heat preservation and sound insulation strips on the wall surfaces of the skirts around the floor panel, and pasting boundary heat preservation strips on all wall surfaces and column surfaces at the intersection with the ground in the heating area of the floor heating terrace;
s2: laying a floor heating layer:
installing the gypsum modules one by one until the gypsum modules on the whole construction surface are installed; laying the ground heating pipes;
s3: the construction of the phosphogypsum self-leveling mortar layer:
testing the fluidity and the setting time of the phosphogypsum self-leveling mortar, wherein the fluidity reaches 260-300 mm, and the setting time reaches 0.5-2 h for use, firstly connecting water for wetting a pump pipe at the initial stage of pumping the phosphogypsum self-leveling mortar, and pouring the phosphogypsum self-leveling mortar to a construction surface through the pump pipe after pumping the phosphogypsum self-leveling mortar for 2 min; the pump pipes are horizontally and uniformly moved from the east, the south and the north to avoid excessive local pumping pulp and achieve the effect of uniform paving;
after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 450-550 mm, a roller is used for carrying out primary carding on the surface of the phosphogypsum self-leveling mortar, bubbles in the mortar are led out through the roller, and leveling is assisted; after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 950-1050 mm, carrying out secondary carding until the phosphogypsum self-leveling mortar submerges the gypsum module;
after the construction is finished, naturally curing the initially-solidified ardealite self-leveling mortar layer, and starting the next process after the compressive strength of the ardealite self-leveling mortar layer reaches 2.5 MPa;
s4: constructing the phosphorus-magnesium self-leveling color terrazzo layer:
adding the phosphorus-magnesium self-leveling color terrazzo mortar into a mortar spraying machine within 2min after the preparation, uniformly stirring for 4-8 min, then transferring into a conveying hopper, pouring from the corner of a construction surface by the conveying hopper, and just soaking the mortar in a standard height line when pouring, wherein the standard height is 5-15 mm; after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 600mm of 450-;
and (3) waiting for 20-40 min, and naturally curing for 2-3 h after the surface of the phosphorus-magnesium self-leveling colored terrazzo mortar is initially set until the compressive strength of the phosphorus-magnesium self-leveling colored terrazzo layer reaches 24-30 MPa, thereby completing construction.
Preferably, in step S2, the floor heating pipes are laid in a zigzag manner. 8. The construction method of the heat-preservation and sound-insulation floor heating terrace as claimed in claim 6, characterized in that: in the step S3, the phosphogypsum self-leveling mortar is not required to be submerged by 2-8 mm of the gypsum module.
Preferably, in the step S4, the thickness of the phosphorus-magnesium self-leveling color terrazzo layer is 5 to 15 mm.
The utility model provides a warm up terrace, warm up terrace setting on floor face basic unit, floor face basic unit includes floor face and floor face basement wall all around, and warm up terrace is for range upon range of in proper order on floor face, follows supreme difference from being: gypsum module, ardealite self-leveling mortar layer and phosphorus-magnesium self-leveling colorful terrazzo layer; the gypsum module is provided with a groove, and the depth of the groove is larger than or equal to the diameter of the ground heating pipe.
The invention has the beneficial effects that:
1. the ardealite heat preservation effect of the invention is about 10 percent of energy saving compared with the traditional cement mortar or concrete product. Phosphogypsum is an industrial byproduct, which can be consumed in large quantities by phosphogypsum modules and phosphogypsum self-leveling.
2. In the construction method, the ardealite module omits complicated procedures such as nail holes, clamping grooves and the like in the traditional floor heating construction, and the ardealite self-leveling and phosphorus-magnesium self-leveling colored terrazzo ground is integrally cast and molded; the gypsum self-leveling mortar and the phosphorus-magnesium self-leveling color terrazzo layer are firmly bonded, the process of coating an interface agent on the phosphogypsum self-leveling mortar layer is omitted, the condensation and the hardening are fast, the whole floor heating terrace can be put into use after the construction is finished for 48 hours at the fastest speed, 7 days are saved compared with the traditional wet construction, and the service life can reach more than ten years.
3. The phosphorus-magnesium self-leveling color terrazzo layer of the floor heating floor disclosed by the invention is integrally cast, uniform in color and seamless, and does not crack or shell after being used for a long time; the floor heating is uniformly distributed on the ground, the human body temperature sensing characteristic is utilized, and the floor heating is comfortable in use; meanwhile, the phosphogypsum has a good sound insulation result, can reduce noise pollution and has no noise in the heating process.
Drawings
Fig. 1 is a schematic structural diagram of a floor heating terrace of the invention;
in the figure: 1-gypsum module, 2-phosphogypsum self-leveling mortar layer, 3-phosphorus-magnesium self-leveling colorful terrazzo layer, 4-ground heating pipe and 5-floor surface.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Example 1:
as shown in fig. 1, the preparation method of the heat-insulating and sound-insulating ground heating terrace comprises a gypsum module, a phosphogypsum self-leveling mortar layer and a phosphorus-magnesium self-leveling colorful terrazzo layer, wherein the preparation method of the gypsum module comprises the following steps:
s1: taking the phosphogypsum which is subjected to neutralization treatment and has the pH value equal to 5.0 as a unit by mass, and calcining and grinding the phosphogypsum at 130 ℃ to obtain phosphogypsum powder A with the fineness of 200 meshes;
s2: adding phosphogypsum powder into a stirrer, adding water, stirring to obtain slurry, enabling the fluidity of the slurry to reach 200mm, and then filling the slurry into a mould to obtain a gypsum module;
the phosphogypsum self-leveling mortar comprises the following components in parts by mass:
ardealite powder B510, retarder 15 and aggregate 113.
The phosphogypsum powder B is prepared by calcining and grinding the neutralized phosphogypsum at 820 ℃ and has the fineness of 200 meshes;
the retarder comprises the following components in parts by mass: the retarder compounded by citric acid, sodium tripolyphosphate, sodium hexametaphosphate and ethylene diamine tetraacetic acid is mixed according to the mass ratio of 1:0.7:0.6, and the fineness is 150 meshes;
the retarder compounded by the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate consists of the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate according to the mass ratio of 0.5: 1.
The aggregate is sand which is treated by screening, shaping and dedusting procedures until the fineness of the aggregate is 10 meshes;
the preparation method of the phosphogypsum self-leveling mortar comprises the following steps:
uniformly mixing the phosphogypsum powder B, the retarder and the aggregate according to the mass part ratio, adding the mixture into a stirrer, adding water into the stirrer after adding the water, and stirring to ensure that the fluidity reaches 260mm, thereby obtaining the phosphogypsum self-leveling mortar with the setting time of 0.5 h;
the phosphorus-magnesium self-leveling color terrazzo mortar comprises the following components in parts by mass:
90 parts of magnesium phosphate cement, 4 parts of an additive, 3 parts of an admixture, 54 parts of aggregate, 1 part of pigment and 3 parts of colored stone.
The magnesium phosphate cement is a mixture of dead burned magnesium oxide and dihydric phosphate, and the ratio of the magnesium oxide to the dihydric phosphate is 1.3: 1; the dead burned magnesium oxide is magnesium hydroxide calcined at 1650 ℃, the content of magnesium oxide is 88 percent, and the fineness is 120 meshes; the dihydric phosphate is ammonium dihydrogen phosphate, the content of the dihydric phosphate is 88 percent, and the fineness is 120 meshes;
the admixture comprises a retarder and an antifoaming agent, wherein the mass content of the retarder is 47%, the mass content of the antifoaming agent is 53%, the retarder is borax, and the fineness is 120 meshes; the defoaming agent is an organic silicon powder defoaming agent;
the admixture is a mixture of metakaolin and fly ash, the mass ratio of the metakaolin to the fly ash is 1.1:1.4, and the fineness is 200 meshes;
the pigment is an inorganic mineral pigment with the fineness of 100 meshes, and the activity of the inorganic mineral pigment is required to be lower than that of magnesium oxide;
the aggregate is sand processed by screening, shaping and dedusting procedures, and the fineness of the aggregate is 10 meshes; the sand aggregate is in the shape of cubic polygon, which can effectively reduce void ratio, increase bulk density and compressive strength, and greatly reduce the dosage of magnesium phosphate cement.
The colored stones are natural colored stones, and the particle size is 3 mm;
the preparation method of the phosphorus-magnesium self-leveling colored terrazzo mortar comprises the following steps:
uniformly mixing magnesium phosphate cement, an additive, an admixture, a pigment and an aggregate according to the mass ratio, adding water into a stirrer, stirring, paving after stirring for 2min, and then scattering colored stones to obtain the phosphorus-magnesium self-leveling colored terrazzo mortar.
A construction method of a heat-preservation and sound-insulation floor heating terrace comprises the following steps:
s1: preparation before laying of floor heating terrace:
before laying a floor heating layer, making foundation leveling on a floor surface and a wall body of a building, completing the foundation leveling, shoveling out the projecting parts of the ground and the wall surface, filling a pit groove of a floor panel with phosphogypsum self-leveling mortar, making a waterproof layer or laying a damp-proof film on the bottom layer of a toilet and the floor surface, cleaning the floor surface and the wall body, and then correcting the flatness of the floor surface by using a leveling ruler, namely 1m 2 The internal height difference is less than or equal to 5 mm;
according to a construction drawing, popping out a control line to form a construction surface, pasting heat preservation and sound insulation strips on the wall surfaces of the wall feet around the floor surface, pasting the boundary heat preservation strips on all wall surfaces and column surfaces at the intersection parts with the ground in the heating area of the floor heating terrace, wherein the boundary heat preservation strips have excellent pasting fastness and can not fall off in use;
s2: laying a floor heating layer:
installing the gypsum modules one by one until the gypsum modules on the whole construction surface are installed; laying the ground heating pipes in a mode of square-back pipe distribution;
s3: the construction of the phosphogypsum self-leveling mortar layer:
testing the fluidity and the setting time of the phosphogypsum self-leveling mortar, wherein the fluidity reaches 260mm, and the setting time reaches 0.5h, so that the phosphogypsum self-leveling mortar can be used to meet the use requirement;
firstly, water of a wetting pump pipe is connected in the initial stage of pumping the phosphogypsum self-leveling mortar, and after the phosphogypsum self-leveling mortar is pumped out after 2min, pouring is carried out on the construction surface through the pump pipe; the pump pipes are horizontally and uniformly moved from the east, the south and the north to avoid excessive local pumping pulp and achieve the effect of uniform paving;
after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 450mm, an operator holding a roller and wearing a long-tube rubber shoe by feet gently combs the surface of the phosphogypsum self-leveling mortar for the first time by using the roller, guides bubbles in the mortar out by the gently rolling roller and assists in leveling; after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 950mm, carrying out secondary carding until the phosphogypsum self-leveling mortar submerges 3mm of the gypsum module;
after the construction is finished, the site is sealed, the initially-solidified ardealite self-leveling mortar layer is naturally maintained, and the next process can be started after the compressive strength of the ardealite self-leveling mortar layer reaches 2.5 MPa;
s4: constructing the phosphorus-magnesium self-leveling color terrazzo layer:
the thickness of the phosphorus-magnesium self-leveling color terrazzo layer is 5mm, the working area allows slight ventilation, and the construction surface is a construction surfaceProduct over 100m 2 In the process, block construction is required, and each construction surface does not exceed 100m after the block construction 2 ；
Detecting the fluidity and the setting time of the prepared phosphorus-magnesium self-leveling color terrazzo mortar, adding the phosphorus-magnesium self-leveling color terrazzo mortar into a mortar spraying machine within 2min after the phosphorus-magnesium self-leveling color terrazzo mortar meets the use requirement, uniformly stirring for 4min, transferring into a conveying hopper, pouring from the corner of a construction surface by the conveying hopper, and ensuring that the mortar just dips a marking line when pouring, wherein the elevation is 5mm or not; after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 500mm, an operator holding a roller and wearing a long rubber shoe by feet uses the roller to gently comb the surface of the phosphorus-magnesium self-leveling color terrazzo mortar for the first time, guides out air bubbles in the mortar through the gently rolling roller, assists in leveling, combs for the second time after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 1000mm, and spreads color stones;
and (3) waiting for 20min, after initial setting on the surface of the phosphorus-magnesium self-leveling colored terrazzo mortar, naturally curing for 2h until the compressive strength of the phosphorus-magnesium self-leveling colored terrazzo layer reaches 24MPa, and finishing construction. If the surface is required to be smooth, the surface of the phosphorus-magnesium self-leveling color terrazzo layer can be polished by a resin polishing machine, the polished residue and dust are absorbed by a dust collector, and then dense wax is coated to play a role in water prevention and brightness.
The utility model provides a warm up terrace, warm up terrace setting on floor face basic unit, floor face basic unit includes floor face 5 and floor face basement wall all around, and warm up terrace is for range upon range of in proper order on floor face 5, follows supreme difference from being: the gypsum block 1, the phosphogypsum self-leveling mortar layer 2 and the phosphorus-magnesium self-leveling colorful terrazzo layer 3; the gypsum module 1 is provided with a groove, and the depth of the groove is larger than or equal to the diameter of the ground heating pipe 4.
Example 2:
as shown in fig. 1, the preparation method of the heat-insulating and sound-insulating ground heating terrace comprises a gypsum module, a phosphogypsum self-leveling mortar layer and a phosphorus-magnesium self-leveling colorful terrazzo layer, wherein the preparation method of the gypsum module comprises the following steps:
s1: taking the phosphogypsum subjected to neutralization treatment and with the pH value equal to 5.3 by taking parts by mass as a unit, and calcining and grinding at 160 ℃ to obtain phosphogypsum powder A with the fineness of 500 meshes;
s2: adding phosphogypsum powder into a stirrer, adding water, stirring to obtain slurry, enabling the fluidity of the slurry to reach 300mm, and then filling the slurry into a mould to obtain a gypsum module;
the phosphogypsum self-leveling mortar comprises the following components in parts by mass:
1000 parts of phosphogypsum powder B, 100 parts of retarder and 400 parts of aggregate.
The phosphogypsum powder B is prepared by calcining and grinding the neutralized phosphogypsum at the high temperature of 850 ℃ and has the fineness of 500 meshes;
the retarder comprises the following components in parts by mass: the retarder compounded by citric acid, sodium tripolyphosphate, sodium hexametaphosphate and disodium ethylene diamine tetraacetate is mixed according to the mass ratio of 1.6:3:2.1, and the fineness is 300 meshes;
the retarder compounded by the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate consists of the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate according to the mass ratio of 2: 1.7.
The aggregate is sand processed by screening, shaping and dedusting procedures until the fineness of the aggregate is 80 meshes;
the preparation method of the phosphogypsum self-leveling mortar comprises the following steps:
uniformly mixing the phosphogypsum powder B, the retarder and the aggregate according to the mass part ratio, adding the mixture into a stirrer, adding water into the stirrer after water is used for stirring, and enabling the fluidity of the mixture to reach 300mm to obtain the phosphogypsum self-leveling mortar with the setting time of 2.0 h;
the phosphorus-magnesium self-leveling color terrazzo mortar comprises the following components in parts by mass:
150 parts of magnesium phosphate cement, 20 parts of an additive, 30 parts of an admixture, 100 parts of aggregate, 5 parts of pigment and 10 parts of colored stone.
The magnesium phosphate cement is a mixture of dead burned magnesium oxide and dihydric phosphate, and the ratio of the magnesium oxide to the dihydric phosphate is 4.5: 1; the dead burned magnesia is magnesite which is calcined at the temperature of more than 1600 ℃, the magnesia content is 95 percent, and the fineness is 400 meshes; the dihydric phosphate is potassium dihydrogen phosphate, the content of the dihydric phosphate is 90 percent, and the fineness is 400 meshes;
the additive comprises a retarder and a defoaming agent, wherein the mass content of the retarder is 77%, the mass content of the defoaming agent is 23%, the retarder is boric acid, and the fineness of the retarder is 400 meshes; the defoaming agent is an organic silicon powder defoaming agent;
the admixture is a mixture of metakaolin and fly ash, the mass ratio of the metakaolin to the fly ash is 3.3:6.1, and the fineness is 500 meshes;
the pigment is an inorganic mineral pigment with the fineness of 400 meshes, and the activity of the inorganic mineral pigment is required to be lower than that of magnesium oxide;
the aggregate is sand treated by screening, shaping and dedusting procedures, and the fineness of the aggregate is 80 meshes; the sand aggregate is in the shape of cubic polygon, which can effectively reduce void ratio, increase bulk density and compressive strength, and greatly reduce the dosage of magnesium phosphate cement.
The colored stones are natural colored stones, and the particle size is 10 mm;
the preparation method of the phosphorus-magnesium self-leveling colored terrazzo mortar comprises the following steps:
uniformly mixing magnesium phosphate cement, an additive, an admixture, a pigment and an aggregate according to the mass ratio, adding water into a stirrer, stirring, paving after stirring for 5min, and then scattering colored stones to obtain the magnesium phosphate self-leveling colored terrazzo mortar.
A construction method of a heat-preservation and sound-insulation floor heating terrace comprises the following steps:
s1: preparation before laying of the floor heating terrace:
before laying a floor heating layer, leveling and completing the foundation of a floor surface and a wall body of the building, shoveling out the projecting parts of the ground and the wall surface, filling a pit groove of a floor panel with phosphogypsum self-leveling mortar, making a waterproof layer or laying a damp-proof film on the bottom layer of a toilet and the floor surface, cleaning the floor surface and the wall body, and then correcting the floor surface flatness by using a leveling ruler, namely 1m 2 The internal height difference is less than or equal to 5 mm;
popping out a control line according to a construction drawing to form a construction surface, pasting heat preservation and sound insulation strips on the wall surfaces of the wall feet around the floor surface, pasting the boundary heat preservation strips on all wall surfaces and column surfaces of the intersection part with the ground in the heating area of the floor heating terrace, wherein the boundary heat preservation strips have excellent pasting fastness and can not fall off in use;
s2: laying a floor heating layer:
installing the gypsum modules one by one until the gypsum modules on the whole construction surface are installed; laying the ground heating pipes in a mode of square-back pipe distribution;
s3: the construction of the phosphogypsum self-leveling mortar layer:
testing the fluidity and the setting time of the phosphogypsum self-leveling mortar, wherein the fluidity reaches 300mm, and the setting time reaches 2h, so that the phosphogypsum self-leveling mortar can be used to meet the use requirement;
firstly, water of a wetting pump pipe is connected in the initial stage of pumping the phosphogypsum self-leveling mortar, and after the phosphogypsum self-leveling mortar is pumped out after 2min, pouring is carried out on the construction surface through the pump pipe; the pump pipes are horizontally and uniformly moved from the east, the south and the north to avoid excessive local pumping pulp and achieve the effect of uniform paving;
after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 550mm, an operator holding a roller and wearing a long-tube rubber shoe by feet uses the roller to gently carry out primary carding on the surface of the phosphogypsum self-leveling mortar, and leads out bubbles in the mortar through the gentle rolling roller to assist leveling; after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 1050mm, carrying out secondary carding until the phosphogypsum self-leveling mortar submerges 8mm of the gypsum module;
after the construction is finished, the site is sealed, the initially-solidified ardealite self-leveling mortar layer is naturally maintained, and the next process can be started after the compressive strength of the ardealite self-leveling mortar layer reaches 2.5 MPa;
s4: constructing the phosphorus-magnesium self-leveling color terrazzo layer:
the thickness of the phosphorus-magnesium self-leveling color terrazzo layer is 15mm, the working area allows slight ventilation, and when the construction area exceeds 100m 2 In the process, block construction is required, and each construction surface does not exceed 100m after the block construction 2 ；
Detecting the fluidity and the setting time of the prepared phosphorus-magnesium self-leveling color terrazzo mortar, adding the phosphorus-magnesium self-leveling color terrazzo mortar into a mortar spraying machine within 2min after the phosphorus-magnesium self-leveling color terrazzo mortar meets the use requirement, uniformly stirring for 8min, transferring into a conveying hopper, pouring from the corner of a construction surface by the conveying hopper, and ensuring that the mortar just dips a marking line when pouring, wherein the elevation is 15mm or not; after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 500mm, an operator holding a roller and wearing a long rubber shoe by feet uses the roller to gently comb the surface of the phosphorus-magnesium self-leveling color terrazzo mortar for the first time, guides out air bubbles in the mortar through the gently rolling roller, assists in leveling, combs for the second time after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 1000mm, and spreads color stones;
and (5) waiting for 40min, after initial setting on the surface of the phosphorus-magnesium self-leveling color terrazzo mortar, naturally curing for 3h until the compressive strength of the phosphorus-magnesium self-leveling color terrazzo layer reaches 30MPa, and finishing construction. If the surface is required to be smooth, the surface of the phosphorus-magnesium self-leveling color terrazzo layer can be polished by a resin polishing machine, the polished residue and dust are absorbed by a dust collector, and then dense wax is coated to play a role in water prevention and brightness.
The utility model provides a warm up terrace, warm up terrace setting on floor face basic unit, floor face basic unit includes floor face 5 and floor face basement wall all around, and warm up terrace is for range upon range of in proper order on floor face 5, follows supreme difference from being: the gypsum block 1, the phosphogypsum self-leveling mortar layer 2 and the phosphorus-magnesium self-leveling color terrazzo layer 3; the gypsum module 1 is provided with a groove, and the depth of the groove is larger than or equal to the diameter of the ground heating pipe 4.
Example 3:
as shown in fig. 1, the preparation method of the heat-insulating and sound-insulating floor heating floor comprises a gypsum module, a phosphogypsum self-leveling mortar layer and a phosphorus-magnesium self-leveling colorful terrazzo layer, wherein the preparation method of the gypsum module comprises the following steps:
s1: taking the phosphogypsum which is subjected to neutralization treatment and has the pH value equal to 5.0 as a unit by mass, and calcining and grinding the phosphogypsum at a high temperature of 840 ℃ to obtain phosphogypsum powder A with the fineness of 300 meshes;
s2: adding phosphogypsum powder into a stirrer, adding water, stirring to obtain slurry, enabling the fluidity of the slurry to reach 300mm, and then filling the slurry into a mould to obtain a gypsum module;
the phosphogypsum self-leveling mortar comprises the following components in parts by mass:
834 parts of phosphogypsum powder, 52 parts of retarder and 225 parts of aggregate.
The phosphogypsum powder B is prepared by calcining and grinding the neutralized phosphogypsum at the high temperature of 850 ℃ and has the fineness of 500 meshes;
the retarder comprises the following components in parts by mass: the retarder compounded by citric acid, sodium tripolyphosphate, sodium hexametaphosphate and ethylene diamine tetraacetic acid is mixed according to the mass ratio of 1.3:1.9:1.3, and the fineness is 200 meshes;
the retarder compounded by the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate consists of the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate according to the mass ratio of 1.6: 1.4.
The aggregate is sand processed by screening, shaping and dedusting procedures until the fineness of the aggregate is 80 meshes;
the preparation method of the phosphogypsum self-leveling mortar comprises the following steps:
uniformly mixing the phosphogypsum powder B, the retarder and the aggregate according to the mass part ratio, adding the mixture into a stirrer, adding water into the stirrer after water is used for stirring, and enabling the fluidity of the mixture to reach 300mm to obtain the phosphogypsum self-leveling mortar with the setting time of 2.0 h;
the phosphorus-magnesium self-leveling color terrazzo mortar comprises the following components in parts by mass:
110 parts of magnesium phosphate cement, 9 parts of an additive, 13 parts of an admixture, 77 parts of aggregate, 2 parts of pigment and 7 parts of colored stone.
The magnesium phosphate cement is a mixture of dead burned magnesium oxide and dihydric phosphate, and the ratio of the magnesium oxide to the dihydric phosphate is 3.3: 1; the dead burned magnesium oxide is magnesium hydroxide calcined at 1700 ℃, the content of magnesium oxide is 91 percent, and the fineness is 300 meshes; the dihydric phosphate is sodium dihydrogen phosphate, the content of the dihydric phosphate is 98 percent, and the fineness is 300 meshes;
the admixture comprises a retarder and an antifoaming agent, wherein the mass content of the retarder is 63%, the mass content of the antifoaming agent is 37%, the retarder is borax, and the fineness is 400 meshes; the defoaming agent is an organic silicon powder defoaming agent;
the admixture is a mixture of metakaolin and fly ash, the mixing mass ratio of the metakaolin to the fly ash is 2.6:2.8, and the fineness is 500 meshes;
the pigment is an inorganic mineral pigment with the fineness of 400 meshes, and the activity of the inorganic mineral pigment is required to be lower than that of magnesium oxide;
the aggregate is sand which is treated by screening, shaping and dedusting procedures, and the fineness of the aggregate is 70 meshes; the sand aggregate is in the shape of cubic polygon, which can effectively reduce void ratio, increase bulk density and compressive strength, and greatly reduce the dosage of magnesium phosphate cement.
The colored stones are natural colored stones, and the particle size is 7 mm;
the preparation method of the phosphorus-magnesium self-leveling colored terrazzo mortar comprises the following steps:
uniformly mixing magnesium phosphate cement, an additive, an admixture, a pigment and an aggregate according to the mass ratio, adding water into a stirrer, stirring, paving after stirring for 5min, and then scattering colored stones to obtain the magnesium phosphate self-leveling colored terrazzo mortar.
A construction method of a heat-preservation and sound-insulation floor heating terrace comprises the following steps:
s1: preparation before laying of the floor heating terrace:
before laying a floor heating layer, making foundation leveling on a floor surface and a wall body of a building, completing the foundation leveling, shoveling out the projecting parts of the ground and the wall surface, filling a pit groove of a floor panel with phosphogypsum self-leveling mortar, making a waterproof layer or laying a damp-proof film on the bottom layer of a toilet and the floor surface, cleaning the floor surface and the wall body, and then correcting the flatness of the floor surface by using a leveling ruler, namely 1m 2 The internal height difference is less than or equal to 5 mm;
according to a construction drawing, popping out a control line to form a construction surface, pasting heat preservation and sound insulation strips on the wall surfaces of the wall feet around the floor surface, pasting the boundary heat preservation strips on all wall surfaces and column surfaces at the intersection parts with the ground in the heating area of the floor heating terrace, wherein the boundary heat preservation strips have excellent pasting fastness and can not fall off in use;
s2: laying a floor heating layer:
installing the gypsum modules one by one until the gypsum modules on the whole construction surface are installed; laying the ground heating pipes in a mode of square-back pipe distribution;
s3: the construction of the phosphogypsum self-leveling mortar layer:
testing the fluidity and the setting time of the phosphogypsum self-leveling mortar, wherein the fluidity reaches 300mm, and the setting time reaches 1.5h, so that the phosphogypsum self-leveling mortar can be used to meet the use requirement;
firstly, water of a wetting pump pipe is connected in the initial stage of pumping the phosphogypsum self-leveling mortar, and after the phosphogypsum self-leveling mortar is pumped out after 2min, pouring is carried out on the construction surface through the pump pipe; the pump pipes are horizontally and uniformly moved from east, west, south and north directions, so that excessive local pump slurry is avoided, and the effect of uniform paving is achieved;
after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 510mm, an operator holding a roller and wearing a long-tube rubber shoe by feet uses the roller to gently carry out primary carding on the surface of the phosphogypsum self-leveling mortar, and leads out air bubbles in the mortar through the gentle rolling roller to assist leveling; after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 980mm, carrying out secondary carding until the phosphogypsum self-leveling mortar submerges 5mm of a gypsum module;
after the construction is finished, the site is sealed, the initially-solidified ardealite self-leveling mortar layer is naturally maintained, and the next process can be started after the compressive strength of the ardealite self-leveling mortar layer reaches 2.5 MPa;
s4: constructing the phosphorus-magnesium self-leveling color terrazzo layer:
the thickness of the phosphorus-magnesium self-leveling color terrazzo layer is 5-15 mm, the working area allows slight ventilation, and when the construction area exceeds 100m 2 In the process, block construction is required, and each construction surface does not exceed 100m after the block construction 2 ；
Detecting the fluidity and the setting time of the prepared phosphorus-magnesium self-leveling color terrazzo mortar, adding the phosphorus-magnesium self-leveling color terrazzo mortar into a mortar spraying machine within 2min after the phosphorus-magnesium self-leveling color terrazzo mortar meets the use requirement, uniformly stirring for 6min, transferring into a conveying hopper, pouring from the corner of a construction surface by the conveying hopper, and ensuring that the mortar just dips a marking line when pouring, wherein the elevation is 10mm or not; after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 500mm, an operator holding a roller and wearing a long rubber shoe by feet uses the roller to gently comb the surface of the phosphorus-magnesium self-leveling color terrazzo mortar for the first time, guides out air bubbles in the mortar through the gently rolling roller, assists in leveling, combs for the second time after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 1000mm, and spreads color stones;
and (3) waiting for 30min, after initial setting on the surface of the phosphorus-magnesium self-leveling colored terrazzo mortar, naturally curing for 3h until the compressive strength of the phosphorus-magnesium self-leveling colored terrazzo layer reaches 30MPa, and finishing construction. If the surface is required to be smooth, the surface of the phosphorus-magnesium self-leveling color terrazzo layer can be polished by a resin polishing machine, the polished residue and dust are absorbed by a dust collector, and then dense wax is coated to play a role in water prevention and brightness.
The utility model provides a ground heating terrace, ground heating terrace sets up on floor face basic unit, and floor face basic unit includes floor face 5 and floor face basement wall all around, and ground heating terrace is for range upon range of in proper order on floor face 5, follows supreme difference down and is: the gypsum block 1, the phosphogypsum self-leveling mortar layer 2 and the phosphorus-magnesium self-leveling colorful terrazzo layer 3; the gypsum module 1 is provided with a groove, and the depth of the groove is larger than or equal to the diameter of the ground heating pipe 4.
Comparative example 1:
using a foamed thermally conductive gypsum-based self-leveling floor tile material (201610751291.7) the material prepared by the method of example 3, a gypsum layer and a base layer (cement layer) were prepared separately.
Comparative example 2:
gypsum layers and base layers (cement layers) were prepared separately using the materials of the embodiments of the thermal building structure and its method of manufacture (202010742239.1).
The floor heating terraces or materials prepared in examples 1 to 3 and comparative examples 1 and 2 were tested according to JC/T1023-2007 Gypsum-based self-leveling mortar and JC/T985-2005 Cement-based self-leveling mortar for the ground, and the results are shown in Table 1.
Table 1 floor heating terrace performance test result
According to the table 1, the mechanical property and the thermal conductivity of the floor heating terrace prepared by the method are improved compared with those of the prior art, the floor heating terrace prepared by the method can be put into use after construction is completed for 48 hours, 7 days are saved compared with the traditional wet construction, the method has the advantage of high-efficiency construction, and the cost input in the early stage is effectively reduced.
Claims (5)
1. The utility model provides a heat preservation sound insulation ground warms up terrace which characterized in that: the floor heating terrace comprises a gypsum module, a phosphogypsum self-leveling mortar layer and a phosphorus-magnesium self-leveling colorful terrazzo layer, wherein the preparation method of the gypsum module comprises the following steps:
s1: taking the neutralized phosphogypsum as a unit by mass, calcining and grinding the neutralized phosphogypsum at a high temperature of between 130 and 160 ℃ to obtain phosphogypsum powder A with the fineness of between 200 and 500 meshes;
s2: adding the phosphogypsum powder A into a stirrer, adding water, stirring to obtain slurry, enabling the fluidity of the slurry to reach 200-300 mm, and then filling into a mould to obtain a gypsum module;
the phosphogypsum self-leveling mortar comprises the following components in parts by mass:
500-1000 parts of phosphogypsum powder B, 1-100 parts of retarder and 100-400 parts of aggregate;
the preparation method of the phosphogypsum self-leveling mortar comprises the following steps:
uniformly mixing the phosphogypsum powder B, the retarder and the aggregate according to the mass part ratio, adding the mixture into a stirrer, adding water and stirring the mixture to ensure that the fluidity of the mixture reaches 260-300 mm, and obtaining the phosphogypsum self-leveling mortar with the setting time of 0.5-2.0 h;
the phosphogypsum powder B is prepared by calcining and grinding the neutralized phosphogypsum at the high temperature of 800-850 ℃ and has the fineness of 200-500 meshes;
the retarder comprises the following components in parts by mass: retarder compounded by citric acid, sodium tripolyphosphate, sodium hexametaphosphate and ethylene diamine tetraacetic acid disodium is mixed according to the mass ratio of 1-1.6: 0.7-3: 0.6-2.1, and the fineness is 150 meshes-300 meshes;
the retarder compounded by the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate consists of the sodium hexametaphosphate and the disodium ethylene diamine tetraacetate according to the mass ratio of 0.5-2: 1-1.7;
the aggregate is sand processed by screening, shaping and dedusting procedures, and the fineness of the aggregate is 10-80 meshes;
the phosphorus-magnesium self-leveling color terrazzo mortar comprises the following components in parts by mass:
90 to 150 parts of magnesium phosphate cement, 2 to 20 parts of an additive, 0 to 30 parts of an admixture, 50 to 100 parts of aggregate, 0 to 5 parts of pigment and 3 to 10 parts of colored stone;
the preparation method of the phosphorus-magnesium self-leveling colored terrazzo mortar comprises the following steps:
uniformly mixing magnesium phosphate cement, an additive, an admixture, a pigment and an aggregate according to the mass part ratio, adding water into a stirrer, stirring, paving after stirring for 2-5 min, and then scattering colored stones to obtain the phosphorus-magnesium self-leveling colored terrazzo mortar;
the magnesium phosphate cement is a mixture of dead burned magnesium oxide and dihydric phosphate, and the ratio of the magnesium oxide to the dihydric phosphate is 1-4.5: 1; the dead burned magnesia is magnesium hydroxide or magnesite calcined at the temperature of more than 1600 ℃, the magnesia content is more than 88 percent, and the fineness is 120 to 400 meshes; the dihydric phosphate is one or more of ammonium dihydrogen phosphate, potassium dihydrogen phosphate and sodium dihydrogen phosphate, the content of the dihydric phosphate is more than 85 percent, and the fineness is 120 to 400 meshes;
the admixture comprises a retarder and an antifoaming agent, wherein the mass content of the retarder is 47-77%, the mass content of the antifoaming agent is 23-53%, the retarder is borax or boric acid, and the fineness is 120-400 meshes; the defoaming agent is an organic silicon powder defoaming agent;
the admixture is a mixture of metakaolin and fly ash, the mass ratio of the metakaolin to the fly ash is 1-3.3: 1-6.2, and the fineness is 200-500 meshes;
the pigment is an inorganic mineral pigment with the fineness of 100-400 meshes, and the activity of the inorganic mineral pigment is required to be lower than that of magnesium oxide; the colored stones are natural colored stones, and the particle size is 3-10 mm;
the aggregate is sand processed by screening, shaping and dedusting procedures, and the fineness of the aggregate is 10-80 meshes;
ground warms up the terrace and sets up on floor face basic unit, floor face basic unit includes floor face (5) and floor face basement wall all around, and ground warms up the terrace for range upon range of in proper order on floor face (5), follows supreme difference down and is respectively: the gypsum self-leveling gypsum stone floor comprises a gypsum module (1), a phosphogypsum self-leveling mortar layer (2) and a phosphorus-magnesium self-leveling color terrazzo layer (3); the gypsum module (1) is provided with a groove, and the depth of the groove is larger than or equal to the diameter of the ground heating pipe (4).
2. The construction method of the heat-preservation and sound-insulation floor heating terrace as claimed in claim 1, characterized in that: the method comprises the following steps:
s1: preparation before laying of floor heating terrace:
after the floor and wall are cleaned, the floor flatness of 1m is checked by using a level ruler 2 The internal height difference is less than or equal to 5 mm; popping out a control line to form a construction surface, removing the projecting parts of a floor panel and a wall surface, filling a pit groove of the floor panel with phosphogypsum self-leveling mortar, pasting heat preservation and sound insulation strips on the wall surfaces of the skirts around the floor panel, and pasting boundary heat preservation strips on all wall surfaces and column surfaces at the intersection with the ground in the heating area of the floor heating terrace;
s2: laying a floor heating layer:
installing the gypsum modules one by one until the gypsum modules on the whole construction surface are installed; laying the ground heating pipes;
s3: and (3) construction of the phosphogypsum self-leveling mortar layer:
testing the fluidity and the setting time of the phosphogypsum self-leveling mortar, wherein the fluidity reaches 260-300 mm, and the setting time reaches 0.5-2 h for use, firstly connecting water for wetting a pump pipe at the initial stage of pumping the phosphogypsum self-leveling mortar, and pouring the phosphogypsum self-leveling mortar to a construction surface through the pump pipe after pumping the phosphogypsum self-leveling mortar for 2 min; the pump pipes are horizontally and uniformly moved from the east, the south and the north to avoid excessive local pumping pulp and achieve the effect of uniform paving;
after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 450-550 mm, a roller is used for carrying out primary carding on the surface of the phosphogypsum self-leveling mortar, bubbles in the mortar are led out through the roller, and leveling is assisted; after the outflow diameter range of the phosphogypsum self-leveling mortar reaches 950-1050 mm, carding for the second time until the phosphogypsum self-leveling mortar submerges the gypsum module;
after the construction is finished, naturally curing the initially-solidified ardealite self-leveling mortar layer, and starting the next process after the compressive strength of the ardealite self-leveling mortar layer reaches 2.5 MPa;
s4: constructing the phosphorus-magnesium self-leveling color terrazzo layer:
adding the phosphorus-magnesium self-leveling color terrazzo mortar into a mortar spraying machine within 2min after the preparation, uniformly stirring for 4-8 min, then transferring into a conveying hopper, pouring from the corner of a construction surface by the conveying hopper, and just soaking the mortar in a standard height line when pouring, wherein the standard height is 5-15 mm; after the outflow diameter range of the phosphorus-magnesium self-leveling color terrazzo mortar reaches 600mm of 450-;
and (3) waiting for 20-40 min, and naturally curing for 2-3 h after the surface of the phosphorus-magnesium self-leveling colored terrazzo mortar is initially set until the compressive strength of the phosphorus-magnesium self-leveling colored terrazzo layer reaches 24-30 MPa, thereby completing construction.
3. The construction method of the heat-preservation and sound-insulation floor heating terrace as claimed in claim 2, characterized in that: in step S2, the floor heating pipes are laid in a zigzag manner.
4. The construction method of the heat and sound insulation floor heating terrace according to claim 2, characterized in that: in the step S3, the phosphogypsum self-leveling mortar is not required to be submerged by 2-8 mm of the gypsum module.
5. The construction method of the heat-preservation and sound-insulation floor heating terrace as claimed in claim 2, characterized in that: in the step S4, the thickness of the phosphorus-magnesium self-leveling color terrazzo layer is 5 to 15 mm.
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| CN114378950A (en) * | 2021-12-31 | 2022-04-22 | 淮北矿业(集团)工程建设有限责任公司 | Construction method and device for gypsum-based self-leveling protective layer of geothermal pipeline |
| CN115286339A (en) * | 2022-07-19 | 2022-11-04 | 贵州磷化绿色环保产业有限公司 | Self-leveling, self-compacting and high-strength gypsum-based indoor terrace self-leveling concrete and preparation method and application thereof |
| CN115822212A (en) * | 2022-11-30 | 2023-03-21 | 河南强耐新材股份有限公司 | Gypsum-based assembled floor module, floor system and construction method thereof |
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