CN114133180A - Heavy mud with fireproof and heat-preservation functions and preparation method thereof - Google Patents

Heavy mud with fireproof and heat-preservation functions and preparation method thereof Download PDF

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CN114133180A
CN114133180A CN202111439477.6A CN202111439477A CN114133180A CN 114133180 A CN114133180 A CN 114133180A CN 202111439477 A CN202111439477 A CN 202111439477A CN 114133180 A CN114133180 A CN 114133180A
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heavy mud
heat
functions
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张�林
罗俊
刘俊
姚代坤
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Chongqing Heavy Mud New Building Materials Co ltd
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Chongqing Heavy Mud New Building Materials Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/46—Rock wool ; Ceramic or silicate fibres
    • C04B14/4643—Silicates other than zircon
    • C04B14/4656—Al-silicates, e.g. clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/29—Frost-thaw resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors

Abstract

The invention discloses a heavy mud material with fireproof and heat-insulating functions and a preparation method thereof, wherein the heavy mud comprises the following raw materials in parts by weight: silicate impervious cement: 6-10 parts of zeolite powder: 6-8 parts of basalt micron fibers: 3-6 parts of alkali-resistant glass fiber short yarn: 2-5 parts of condensed silica fume: 8-11 parts of expanded oil shale particles: 1-10 parts of hydrophobic expanded rock bead particles: 1-50 parts; the preparation method comprises the following specific steps: weighing the raw materials in parts by weight; firstly, uniformly mixing silicate impervious cement, zeolite powder, basalt microfiber, alkali-resistant glass fiber staple, condensed silica fume and expanded oil shale particles together by utilizing dry powder in a mixer to obtain a mixed material; the mixed material and the hydrophobic expanded rock bead particles are processed by a static-free synthesis roller to prepare the heavy mud with the functions of fire prevention and heat preservation.

Description

Heavy mud with fireproof and heat-preservation functions and preparation method thereof
Technical Field
The invention belongs to the field of building materials, and particularly relates to heavy mud with fireproof and heat-preservation functions and a preparation method thereof.
Background
The energy-saving work of buildings in China begins from the energy-saving design standard of residential buildings in northern areas issued in 1986, and the energy-saving target at the time is 30 percent; the energy-saving target of the building is improved to 50% in 1996; energy saving is gradually carried out by 65% in 2005. The energy-saving 65% design standard of buildings in Beijing is regulated and is promoted to 75% and 85% design standards.
No matter how much the energy-saving index is improved, the essential status of the energy-saving index is realized by bearing the building envelope structure completely, so that the energy consumption is reduced mainly, and the energy consumption for cooling in summer is reduced. The reduction of the heat transfer coefficient of the outer wall is mainly realized by the wall heat insulation technology. The wall heat insulation technology in China has three forms of outer wall internal heat insulation, sandwich heat insulation and outer wall external heat insulation, and the outer wall external heat insulation technology has become the mainstream of the current market due to the advantages of good thermal performance, good heat insulation effect, protection of a main body structure, basic elimination of a heat bridge and the like.
Along with the increasing importance of the country on the energy conservation of the building. The external thermal insulation technology of the external wall obtains great development, and shows a large number of external thermal insulation systems of external wall such as thin plastering of polystyrene board, glue powder polystyrene granule, spraying hard foam polyurethane, cast-in-situ non-net polystyrene board, cast-in-situ net polystyrene board, integration of thermal insulation and decoration, curtain wall thermal insulation and the like, and high-efficiency thermal insulation materials such as EPS, XPS, PU and the like are widely applied.
After the publication of ' Notification about further defining the requirements of fire-fighting supervision and management of the external thermal insulation material of the civil building ' No. 2011 65 '. After years of practical application, the problem of potential safety hazard of external wall external heat insulation and fire prevention in China is brought to high importance of the whole society of China and a consensus for solving the potential hazard in an accelerated way is formed: the flammable thermal insulation material is considered to be the main cause of external thermal insulation fire of the external wall, the improvement of the fire prevention safety of the external thermal insulation system of the external wall is urgent, and two technical routes are formed. The first is that the fire-proof performance of the heat-insulating material is improved at present, the heat-insulating material does not accord with the national conditions of China technically and economically, and the fire-proof safety of an external wall external heat-insulating system is improved by adopting constructional measures such as a fire-proof isolation belt, a fire-proof sub-bin, a fire-proof surface layer and the like; the second is that the root of the external thermal insulation fire of the external wall lies in flammable thermal insulation materials, and development of nonflammable or non-flammable high-efficiency thermal insulation materials is promoted to gradually replace the flammable thermal insulation materials, so that the fire hazard of the building is fundamentally solved. The fire prevention of the structure can partially relieve the fire of external thermal insulation of the external wall, and can be used as a transition measure for improving the fire prevention safety of the building, but because flammable thermal insulation materials are still adopted, the fire hazard still exists.
Currently, the research on a fireproof thermal insulation material with combustion performance of grade A and capable of meeting the energy-saving design requirements is urgent.
Disclosure of Invention
Aiming at the defects, the first purpose of the invention is to provide the heavy mud with the fireproof and heat-preservation functions;
the second purpose of the invention is to provide a preparation method of the heavy mud with the functions of fire prevention and heat preservation;
the third purpose of the invention is to provide the application of the heavy mud with the fireproof and heat-preservation functions;
in order to achieve the purpose, the invention adopts the following technical scheme:
the heavy mud with the fireproof and heat-insulation functions comprises the following raw materials in parts by weight: silicate impervious cement: 6-10 parts of zeolite powder: 6-8 parts of basalt micron fibers: 3-6 parts of alkali-resistant glass fiber short yarn: 2-5 parts of condensed silica fume: 8-11 parts of expanded oil shale particles: 1-10 parts of hydrophobic expanded rock bead particles: 1-50 parts.
Further, the method comprises the following steps:
1) weighing the following raw materials in parts by weight: silicate impervious cement: 6-10 parts of zeolite powder: 6-8 parts of basalt micron fibers: 3-6 parts of alkali-resistant glass fiber short yarn: 2-5 parts of condensed silica fume: 8-11 parts of expanded oil shale particles: 1-10 parts of hydrophobic expanded rock bead particles: 1-50 parts;
2) firstly, uniformly mixing silicate impervious cement, zeolite powder, basalt microfiber, alkali-resistant glass fiber staple, condensed silica fume and expanded oil shale particles together by utilizing dry powder in a mixer to obtain a mixed material;
3) the mixed material and the hydrophobic expanded rock bead particles are processed by a static-free synthesis roller to prepare the heavy mud with the functions of fire prevention and heat preservation.
Further, the heavy mud is a fiber ball-shaped dry powder material, and is stirred and mixed with water according to the mass ratio of 1 (1-2) to form plastic slurry.
Furthermore, the plastic slurry is used for replacing base leveling cement mortar, internal and external plastering of building walls and wall masonry.
By adopting the scheme, the invention has the following advantages:
1. the heavy mud of the invention takes silicate impervious cement, zeolite powder, basalt micron fiber, alkali-resistant glass fiber short filament, condensed silica fume, expanded shale particles and hydrophobic expanded rock bead particles as main components, water is added and stirred into plastic slurry, materials such as sand stone and the like can be cemented and hardened in air and water, and a fiber ball bead net-shaped bonding structure is formed after molding and is used for heat preservation, heat insulation, fire prevention, sound insulation and moisture prevention of building walls, floors and roofs.
2. The heavy mud has heat preservation performance in the application process, microbubbles generated by mixing hydrophobic expanded rock beads serving as heat preservation aggregates with various inorganic fillers and fiber aggregates are mutually connected to form a micron-sized microporous reticular structure, and the heat preservation and heat insulation performance is formed by conducting and filtering through the structure, wherein the heat conductivity coefficient lambda is 0.050-0.10W/m.K.
3. The heavy mud has fire resistance in the application process, is compounded by all the components of inorganic non-combustible materials, and the fire resistance index of the heavy mud meets the fire resistance and flame retardance requirements of A-grade non-combustible materials.
4. The heavy mud disclosed by the invention also has stability in the application process, has excellent thermal stability, hydrophobicity and weather resistance after being dried and formed, and effectively prevents wall cracks, deformation, falling off, moisture and condensation.
5. The heavy mud disclosed by the invention is environment-friendly in the application process, has no toxicity or harm to a human body, no corrosivity, no radioactivity, no peculiar smell and good sound insulation and absorption performance in the production, construction and use processes, has no harmful harm to the natural environment by waste materials, can be recycled, and is a power aid for the roads developed towards green, low-carbon and ecological directions in the motherland and human construction industry.
6. The invention lays the scientific development foundation of the heavy mud, completes the preparation of novel building materials of the inorganic composite material, which can not only realize A1-grade fire prevention, but also realize heat preservation and energy conservation, and simultaneously replaces basic level leveling cement mortar, thereby reducing the cost and having high practicability.
7. The slurry formed by mixing the heavy mud and the water is hardened and molded, so that the slurry has excellent thermal stability, hydrophobicity, weather resistance and freeze-thaw property, and can effectively prevent wall cracking, deformation, falling off, moisture and condensation due to the penetration effect of the basalt micron fibers, and the service life of the product is the same as that of a main structure of a building.
8. Because of the function of the basalt micron fibers, the product has low density, can be seamlessly connected with density materials such as ceramic tiles, steel and the like, has strong binding power, can be used as a plate and a special-shaped plate product, and has wide application.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
FIG. 1 is a 900X 900(mm) wall experiment in example 4 of the present invention;
FIG. 2 is a 900X 900(mm) wall inspection report in example 4 of the present invention;
FIG. 3 is a graph showing the results of the fire-fighting test using heavy clay in example 8 of the present invention.
Detailed Description
The present invention will now be described in detail with reference to the drawings and examples, which are not intended to limit the invention in any way, except as specifically stated, reagents, methods and apparatus are conventional in the art.
The heavy mud is divided into I type, II type and III type according to the bulk density;
type I: the bulk density is less than or equal to 160kg/m3, the concrete is used for hole filling, heat preservation, heat insulation and the like of wall building blocks, and the performance indexes are shown in table 1;
type II: the bulk density is less than or equal to 240kg/m3, the material is used for wall plastering, roof heat preservation, underground garage roof heat preservation, geothermal A-level fireproof heat preservation and heat insulation, and the performance indexes are shown in table 2;
type III: the stacking density is less than or equal to 400kg/m3, the concrete is used for masonry, inner wall plastering, heat preservation, sound insulation and the like, and the performance indexes are shown in table 3;
TABLE 1 type I physical and mechanical properties of hardened insulating heavy mud
Figure BDA0003382735070000041
TABLE 2 type II physical and mechanical properties after hardening of the insulating heavy mud
Figure BDA0003382735070000042
Figure BDA0003382735070000051
TABLE 3 physical and mechanical properties of type III thermal insulation heavy mud after hardening
Figure BDA0003382735070000052
Figure BDA0003382735070000061
Example 1: heavy mud with fireproof and heat-preservation functions
The method comprises the following steps:
1) weighing the following raw materials in parts by weight: 8 parts of silicate impervious cement, 7 parts of zeolite powder, 6 parts of basalt micro-fiber, 5 parts of alkali-resistant glass fiber short filament, 8 parts of condensed silica fume, 8 parts of expanded shale particles, 45 parts of hydrophobic expanded rock bead particles, 0.3 part of additive and 0.5 part of additive;
2) firstly, uniformly mixing silicate impervious cement, zeolite powder, basalt microfiber, alkali-resistant glass fiber staple, condensed silica fume, expanded oil shale particles, an additive and an additive together by utilizing dry powder in a mixer to obtain a mixed material;
3) the mixed material and the hydrophobic expanded rock bead particles are processed by a static-free synthesis roller to prepare the heavy mud with the functions of fire prevention and heat preservation.
Example 2: physical and mechanical property test of hardened II-type heavy mud
1. Experimental methods
The heavy mud obtained under the conditions of example 1 was mixed with water and prepared according to type ii heavy mud product, and subjected to physical mechanical property test.
2. Results of the experiment
Table 4 physical and mechanical properties of heavy mud type II after hardening
Figure BDA0003382735070000062
Figure BDA0003382735070000071
Example 3: thermal performance of heavy mud wall
Adopting the heavy mud prepared under the conditions in the embodiment 1, carrying out experiments according to the requirements of type I, type II and type III, and carrying out heat conductivity coefficient detection on three types of the tested heavy mud;
the experimental results are as follows:
type I heavy mud dry density 200kg/m3The thermal conductivity (average temperature 25 ℃ C.) was 0.043W/(m.K);
the dry density of the type II heavy mud is 240kg/m3The thermal conductivity (average temperature 25 ℃ C.) was 0.048W/(m.K);
the dry density of the III type heavy mud is 350kg/m3The thermal conductivity (average temperature 25 ℃ C.) was 0.080W/(m.K);
example 4: thermal performance of II type heavy mud wall
1. Experimental methods
The method for constructing the heavy mud composite wall comprises the following specific steps: sequentially coating II type heat-preservation heavy mud 20mm, aerated concrete wall 200mm, coating II type heat-preservation heavy mud 50mm and one cloth of two slurry from inside to outside;
900X 900(mm) wall thermal performance experiment: the wall structure is a 390 multiplied by 190(mm) light aggregate small-sized hollow concrete block, heat-preservation heavy mud filling hole materials are filled in the holes, the thickness of a basic wall is 390mm, double-sided plastering is carried out, heat-preservation heavy mud is used for both masonry and plastering, the plastering thickness of a cold box and a hot box is 25mm, the temperature of the cold box side in the test is minus 10.4 ℃ plus or minus 0.3 ℃, the temperature of the hot box side is 20.6 ℃ plus or minus 0.3 ℃, and the air velocity near the surface of the cold box is as follows: 3.0 m/s.
2. Results of the experiment
TABLE 5 heavy mud composite wall structure and main body heat transfer coefficient
Figure BDA0003382735070000072
Figure BDA0003382735070000081
The heavy mud composite wall body thermal property experiment: according to the measurement and calculation of the table 5, according to the experiment, when the thickness of the base wall reaches 300mm, and the thicknesses of the internal and external heat preservation heavy mud are respectively 20mm and 50mm, the heat transfer coefficient of the main body can reach 0.37W/((square meter. K)). The parameter is 18 percent less than the heat transfer coefficient of a brick wall (the main body heat transfer coefficient is 0.45W/(. square meter. K)) with the thickness of 300mm of a local traditional wall body, and is 16 percent less than the heat transfer coefficient of a polystyrene foam board composite wall body (200mm building blocks, 80mm polystyrene foam boards, the main body heat transfer coefficient is 0.44W/(. square meter. K)).
900X 900(mm) wall thermal performance experiment: as can be seen from FIGS. 1 and 2, the detected thermal resistance of the wall is 3.56 (m)2K)/W, heat transfer coefficient of 0.27W/(m)2·K)。
Example 5: resistance of heavy mud to freeze-thaw cycling
Referring to the inorganic wall material, firstly, the water absorption and the freeze-thaw resistance of the material are considered, particularly for northeast regions and severe cold regions, the freeze-thaw cycle is respectively carried out for 50 times and 100 times on the type II heavy mud
Freeze-thaw cycles are respectively carried out on the II type heavy mud test block for 50 times and 100 times according to GB/T20473 plus 2006 by the academy of the building sciences in the cold region of Heilongjiang province in 1 month in 2013, and the detection result is qualified as shown in Table 6;
in 4 months in 2018, the Jilin province building material industry design research institute performs 50 times of freeze-thaw resistance cycle tests on products of Jilin province Ji mud building materials, and performs freeze-thaw tests on II-type heavy mud products according to GB/T20473-;
TABLE 62013 test for resistance of heavy mud to freeze-thaw cycles
Figure BDA0003382735070000082
Figure BDA0003382735070000091
TABLE 72018 year heavy mud Freeze thaw cycle resistance test
Figure BDA0003382735070000092
Example 6: weather resistance of heavy mud
The weather resistance test is carried out on the heavy mud type II product according to the JGJ 144-plus 2004 technical Specification for external thermal insulation engineering of exterior wall, and the weather resistance test is carried out in 201 years by using a weather resistance tester numbered JN010 for an external thermal insulation system in a weather resistance laboratory of building material industry design research institute of Jilin province. Preparing a sample according to ADE requirements in appendix of JGJ 144-supplement 2004 of external thermal insulation engineering technical Specification for exterior walls, and carrying out a weather resistance test after the sample is cured for 28 d;
the method comprises the following steps: high temperature-water spraying circulation is carried out for 80 times, and each time lasts for 6 hours; regulating the state for 48 h; and thirdly, heating-freezing circulation is carried out for 5 times, and each time is 24 hours. Wherein, after 4 times of high temperature-water spraying circulation and heating-freezing circulation, the sample is observed whether cracks, hollows, falls off and the like appear or not and is recorded. After the test is finished, damages such as bubbling or peeling of the finish coat, no hollowing or falling of the protective layer and the like do not occur, and no water seepage crack is generated, so that pictures are shown. After the state is adjusted for 7 days, testing the tensile bonding strength of the plastering layer and the insulating layer according to the current standard 'inspection standard for bonding strength of facing bricks in construction engineering' JGJ/T110-supplement 2017 standard;
the test results are respectively 0.12 MPa; 0.13 MPa; 0.14MPa, average 0.13 MPa.
Example 7: heavy mud combustion performance grading test
The combustion performance test is carried out on the heavy mud type II according to the standards GB/T14002-2007 and GB/T5464-2010 respectively, and the results are shown in Table 8.
TABLE 8
Figure BDA0003382735070000093
Figure BDA0003382735070000101
Through the arrangement and analysis of test data, compared with corresponding indexes of GB 8624 and 2012 'grade of combustion performance of building materials and products', the heavy mud meets the requirement of A1-grade non-combustible materials.
Example 8: fire-fighting test using heavy clay
The method comprises the following steps of simulating wall outdoor combustion test, wherein the height of a simulation wall is 3m, the width of the simulation wall is 5m, the test contents are a trapezoidal flame-retardant A-level 300 fireproof isolation belt and a 60-bin type partition wall bin dividing belt, the test time is 60 minutes, and the test wall surface burns for 60 minutes;
as seen from figure 3, the incombustibility of the heavy mud is demonstrated by the incombustibility and the effects of flame retardance on the 300mm trapezoidal flame-retardant A-level fireproof isolation belt and the 60 bin body isolation belt, and the incombustibility and the effects of isolated combustion are realized in the structural members.
Example 9: differences between heavy mud and traditional heat-preservation mortar
TABLE 9 differences between heavy mud and conventional insulating mortars
Figure BDA0003382735070000102
Figure BDA0003382735070000111
Figure BDA0003382735070000121
Finally, the description is as follows: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (4)

1. The heavy mud with the fireproof and heat-insulation functions is characterized by comprising the following raw materials in parts by weight:
silicate impervious cement: 6-10 parts of zeolite powder: 6-8 parts of basalt micron fibers: 3-6 parts of alkali-resistant glass fiber short yarn: 2-5 parts of condensed silica fume: 8-11 parts of expanded oil shale particles: 1-10 parts of hydrophobic expanded rock bead particles: 1-50 parts.
2. The preparation method of the heavy mud with the functions of fire prevention and heat preservation according to claim 1 is characterized by comprising the following steps:
1) weighing the following raw materials in parts by weight: silicate impervious cement: 6-10 parts of zeolite powder: 6-8 parts of basalt micron fibers: 3-6 parts of alkali-resistant glass fiber short yarn: 2-5 parts of condensed silica fume: 8-11 parts of expanded oil shale particles: 1-10 parts of hydrophobic expanded rock bead particles: 1-50 parts;
2) firstly, uniformly mixing silicate impervious cement, zeolite powder, basalt microfiber, alkali-resistant glass fiber staple, condensed silica fume and expanded oil shale particles together by utilizing dry powder in a mixer to obtain a mixed material;
3) the mixed material and the hydrophobic expanded rock bead particles are processed by a static-free synthesis roller to prepare the heavy mud with the functions of fire prevention and heat preservation.
3. The heavy mud with the functions of fire prevention and heat preservation, which is prepared according to the claim 2, is a fiber ball-shaped dry powder material, and is stirred and mixed with water according to the mass ratio of 1 (1-2) to form plastic slurry.
4. The heavy mud with the functions of fire prevention and heat preservation as claimed in claim 3, wherein the plastic slurry is used for replacing base leveling cement mortar, inner and outer plastering of building wall, and wall masonry.
CN202111439477.6A 2021-11-30 2021-11-30 Heavy mud with fireproof and heat-preservation functions and preparation method thereof Pending CN114133180A (en)

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Application publication date: 20220304