CN104973840B - A kind of fireproof bonding mortar and its preparation method and application - Google Patents
A kind of fireproof bonding mortar and its preparation method and application Download PDFInfo
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- CN104973840B CN104973840B CN201510396667.2A CN201510396667A CN104973840B CN 104973840 B CN104973840 B CN 104973840B CN 201510396667 A CN201510396667 A CN 201510396667A CN 104973840 B CN104973840 B CN 104973840B
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Abstract
A kind of fireproof bonding mortar, is made up of the component of following parts by weight：The 425R Portland cements of 385 420 mass parts, drying sand, the fire prevention powder of the defoamer of 11 13 mass parts, the water reducer of 8 12 mass parts, the powdered whiting of 50 100 mass parts, the hydroxypropyl methyl cellulose of 36 mass parts, the redispersable latex powder of 12 15 mass parts, 25 36 mass parts of 470 510 mass parts.The fireproof bonding mortar is suitably matched by each component reaches good synergy, while with good adhesion strength, it may have good anti-flammability.
Description
Technical field
The present invention relates to a kind of fireproof bonding mortar, belong to binding material for building, particularly play cohesive expansion polyphenyl
Plate and matrix metope or the exterior wall adhesive mortar acted between putty.
Background technology
With the economic continuous improvement developed rapidly with the level of urbanization, skyscraper is more and more, particularly center
City and its periphery.The appearance of these skyscrapers, development and prosperity to city bring life and vigor, but also give fire-fighting
Work brings difficult and crisis.Therefore, people have developed Building Fire Protection sheet material and architectural fireproof paint.Architectural fireproof paint
Itself be not so or it is fire retardant, do not play fire retardation, its principle of preventing fires is that coating can make ground and fire screen from so as to extend heat
Invade the time required for ground, arrival ground opposite side（Postpone and suppress flame spreads effect）., will be this when on fire
Fireproof coating is sprayed at the flammable substrate surface of building element, it is protected in a fire, so that fire is reduced or avoided
The loss that calamity is caused.
Adhesive mortar is uniformly formed by cement, quartz sand, polymer bonding material and multiple additives through mechanical mixture,
It is primarily used for bonding the binding agent of warming plate.It uses cement, filler to be composited through Particular craft, good water-retaining property, bonds
Intensity is high.Adhesive mortar has the advantage that：There is stronger cementation to warming plates such as base course wall and styrofoams；It is resistance to
Water, resistance to jelly, ageing-resistant performance are good；Easy construction, is a kind of very safe heat-insulation system binding material；Do not slided in work progress
Pendant, with excellent weather-proof, shock resistance and cracking resistance.But, adhesive mortar currently used in the market does not have fire line
Or fire protecting performance is not good, there is certain potential safety hazard.
The content of the invention
In view of this, it is an object of the invention to provide a kind of fireproof bonding mortar, the fireproof bonding mortar not only has
Good adhesion strength, it may have good anti-flammability.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of fireproof bonding mortar, is made up of the component of following parts by weight：The 425R normal silicates of 385-420 mass parts
Cement, the drying sand of 470-510 mass parts, the defoamer of 11-13 mass parts, the water reducer of 8-12 mass parts, 6-9 mass parts
SILICA FUME, the powdered whiting of 50-100 mass parts, the hydroxypropyl methyl cellulose of 3-6 mass parts, 12-15 mass parts can be again
The fire prevention powder of dispersed latex powder, 25-36 mass parts.
Further, the adhesive mortar is made up of the component of following parts by weight：The 425R normal silicate water of 400 mass parts
Mud, the drying sand of 500 mass parts, the defoamer of 12 mass parts, the water reducer of 10 mass parts, the SILICA FUME of 8 mass parts, 80 mass
The powdered whiting of part, the hydroxypropyl methyl cellulose of 4.5 mass parts, the redispersable latex powder of 13.5 mass parts, 32 mass
The fire prevention powder of part.
The defoamer is also known as defomaing agent or anti-foaming agent, and many unwanted bubbles can be produced in industrial processes, needs
Add defoamer.Defoamer can reduce surface tension, suppress foam generation or eliminate to have produced foam.The water reducer is
Refer under conditions of keeping mortar essentially identical, the additive of mixing water amount can be reduced.Water reducer is generally a kind of surface
Activating agent, belongs to anionic surfactant, can be adsorbed in mortar particle surface, the work with diminishing and raising mortar strength
With.
The powdered whiting be natural calcite, lime stone, chalk, shell etc. directly crushed using mechanical means and
It is made.Due to its settling volume（1.1-1.9mL/g）Than the precipitated calcium carbonate settling volume chemically produced（2.4-
2.8mL/g）It is small, therefore it is referred to as powdered whiting.In the formula of the present invention, coarse whiting plays reduction production as inserts
The effect of cost, the toughness and intensity of increase product.
The redispersable latex powder is the spray-dried rear powder formed of polymer emulsion, also referred to as dry powder glue.It is this
Powder can be reduced into emulsion rapidly after contact with water, and keep and initial latex identical property, i.e., after moisture evaporation, this
Planting film has high-flexibility, high-weatherability and the high-adhesion to various base materials.In the formula of the present invention, Redispersable latex
Powder plays following effect：7-10 days film forming in cement are added in, wall and mortar are clenched, prevent mortar from opening when uneven in temperature
Split；The adhesive property and cohesive strength of material can be improved；Reduce the modulus of elasticity of shaping；Reinforcing material it is elastic and counter-bending strong
Degree；Improve the impact resistance and weatherability of material；Reduce the water imbibition of material and improve the water-retaining property using process.
The SILICA FUME is also silicon ash or poly- silicon ash, is ferroalloy in smelting duriron and industrial silicon（Metallic silicon）When, ore deposit heat
What is produced in electric furnace has beaten volatility very strong SiO2Formed with Si gases after discharge with air rapid oxidation condensation precipitation
's.In the concrete, mortar and refractory material casting material of cement base, appropriate SILICA FUME is mixed, can be functioned as follows：Significantly carry
High resistance to compression, anti-folding, impervious, anti-corrosion, shock resistance and anti-wear performance；With water conservation, prevent isolation, bleeding, be greatly reduced concrete pumping
The effect of resistance；Significantly the service life of extension concrete, particularly severe in villiaumite system erosion, sulfate attack, high humility etc.
Under environment, the durability of concrete can be made to double even several times；Jetting cement and the landing ash of castable is greatly reduced, improves single
Secondary jetting thickness；It is the necessary composition of High Strength Concrete, the engineer applied of existing C150 concretes；There are about 5 times of cement, common
Application can reduce cost, improve durability in concrete and Low Cement Castable；Effectively prevent concrete alkali-aggregate reaction；Improve cast
The compactness of type refractory material, with Al2O3And when depositing, be more easy to generate mullite phase, make its elevated temperature strength, the enhancing of shaking property of heat resistanceheat resistant；
, can be with hydrolysis product of cement Ca (OH) during mixed concrete with extremely strong volcano ash effect2Generation secondary reaction of hydration,
Gelled product is formed, filling concrete stone structure improves the microstructure of slurry, improves the mechanical property and durability of hardenite；
SILICA FUME is unformed spherical particle, can improve the rheological property of concrete；The average particle size particle size of SILICA FUME is smaller, tool
There is good filing effect, can be filled between cement granules space, improve concrete strength and durability.
Further, the husky specification of the drying is 70-140 mesh.The drying is husky can be stronger with cement slurry formation
Bonding force, the anti-folding of strengthening slurry, compression strength are conducive to the raising of polystyrene granule insulating mortar bulk strength.
Further, the viscosity of the hydroxypropyl methyl cellulose is 200,000 mPas.The hydroxypropyl methyl cellulose, again
Name hydroxypropyl methylcellulose, HPMC, English abbreviation is HPMC.It is the gossypin conduct from high purity
Raw material, is made through special etherificate in the basic conditions.Water-loss reducer, retarder of the hydroxypropyl methyl cellulose as cement mortar
Make mortar that there is pumping.In slurry of plastering, gypsum material, powder of lacquer putty for use on or other building materials as binder, it is possible to increase smear
With extension operable time.As ceramic tile, marble, decorative plastic is pasted, reinforcing agent is pasted, cement consumption can also be reduced.
HPMC water retention property makes slurry will not be because of so dry that to be cracked soon very much, intensity after enhancing hardening after smearing.
Further, the fire prevention powder is inorganic additive flame retardant.Further, the inorganic additive flame retardant is main
Composition is magnesium hydroxide or aluminium hydroxide.The fire prevention powder is fire retardant, is that the feature that can assign polymer flame retardancy is helped
Agent, can be divided into additive flame retardant and reactive flame retardant according to application method.Additive flame retardant is by mechanical mixture side
Method is added in polymer, polymer is had anti-flammability.Current additive flame retardant mainly has organic fire-retardant and inorganic resistance
Fire agent.Organic fire-retardant is that, using bromine system, phosphorus nitrogen system and red phosphorus and compound as some fire retardants of representative, inorganic combustion inhibitor is main
It is the flame-retardant systems such as antimony oxide, magnesium hydroxide, aluminium hydroxide, silicon systems.
The preparation of the fireproof bonding mortar comprises the following steps：
A, weighed by raw material ratio, then raw material are inserted in feed bin, is mixed and is continuously stirred, by it
Stir；
B, by mixture made from step A and water according to proportion by weight 1:0.15-1:0.3 stirs 6-9 in mixer
Minute into uniform pulpous state, you can the fireproof bonding mortar of construction must be used for.
Further, the proportion by weight of mixture and water is 1 in the step B: 0.25.
The present invention also aims to provide application of the fireproof bonding mortar in fire resistant coating, by the fireproof bonding
Mortar is used for exterior-wall heat insulation adhesive board.The fireproof bonding mortar is while with good adhesion strength, also with good
Anti-flammability.
The method have the benefit that：
The fireproof bonding mortar of the present invention, is suitably matched by each component and reaches good synergy, is meeting tool
While having good adhesion strength, good anti-flammability is also shown.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, embodiments of the invention are carried out below detailed
Thin description.
Embodiment 1
A kind of fireproof bonding mortar, it is composed of the following components：The 425R Portland cements of 385 mass parts, 470 mass
The drying sand of part, the defoamer of 11 mass parts, the water reducer of 8 mass parts, the SILICA FUME of 6 mass parts, the heavy carbon of 50 mass parts
Sour calcium, the hydroxypropyl methyl cellulose of 3 mass parts, the redispersable latex powder of 12 mass parts, the fire prevention powder composition of 25 mass parts.
The specific preparation method of fireproof bonding mortar comprises the following steps：
A, weighed by raw material ratio, then raw material are inserted in feed bin, is mixed and is continuously stirred, by it
Stir；
B, by mixture made from step A and water according to proportion by weight 1:0.15 stirs 6 minutes Cheng Jun in mixer
It is homogenized shape, you can the fireproof bonding mortar of construction must be used for.
Embodiment 2
A kind of fireproof bonding mortar, it is composed of the following components：The 425R Portland cements of 420 mass parts, 510 mass
The drying sand of part, the defoamer of 11 mass parts, the water reducer of 8 mass parts, the SILICA FUME of 9 mass parts, the heavy carbon of 100 mass parts
Sour calcium, the hydroxypropyl methyl cellulose of 6 mass parts, the redispersable latex powder of 15 mass parts, the fire prevention powder of 36 mass parts.
The specific preparation method of fireproof bonding mortar comprises the following steps：
A, weighed by raw material ratio, then raw material are inserted in feed bin, is mixed and is continuously stirred, by it
Stir；
B, by mixture made from step A and water according to proportion by weight 1:0.3 stirs 9 minutes into uniform in mixer
Pulpous state, you can the fireproof bonding mortar of construction must be used for.
Embodiment 3
A kind of fireproof bonding mortar, it is composed of the following components：The 425R Portland cements of 400 mass parts, 500 matter
Measure drying sand, the defoamer of 12 mass parts, the water reducer of 10 mass parts, the SILICA FUME of 8 mass parts, the heavy of 80 mass parts of part
Calcium carbonate, the hydroxypropyl methyl cellulose of 4.5 mass parts, the redispersable latex powder of 13.5 mass parts, the fire prevention of 32 mass parts
Powder.
The specific preparation method of fireproof bonding mortar comprises the following steps：
A, weighed by raw material ratio, then raw material are inserted in feed bin, is mixed and is continuously stirred, by it
Stir；
B, by mixture made from step A and water according to proportion by weight 1:0.25 stirs 8 minutes Cheng Jun in mixer
It is homogenized shape, you can the fireproof bonding mortar of construction must be used for.
Embodiment 4
The melamine class of the Portland cement of 100 mass parts, the quartz sand of 150 mass parts, 2 mass parts is efficient
Water reducer, the lignocellulosic of 0.5 mass parts, the cellulose ether of 2 mass parts, the acrylate copolymer of 15 mass parts are mixed
Adhesive mortar slurry.In use, separately adding the water of 420 mass parts, it is sufficiently stirred for, you can obtain adhesive mortar.
Embodiment 5
By the binding material of 30 mass parts, the fine aggregate of 30 mass parts, the polymer bonding material of 2 mass parts, 0.1 mass parts
Thixotropic lubricant, the accelerator of 0.008 mass parts are added in mixer, are stirred 3 minutes.Quality according to mixture and water is matched somebody with somebody
Than for 1:0.1 mixes 5 minutes, you can for construction.
The performance test of the fireproof bonding mortar of embodiment 6
To the embodiment 1-3 fireproof bonding mortars obtained and embodiment 4（Control group 1）With embodiment 5（Control group 2）Obtain
Adhesive mortar carry out performance test, test result is as shown in the table：
Note：In upper table, adhesion strength, tensile bond strength（With cement mortar）, tensile bond strength（With expansion polyphenyl
Plate）According to《Building mortar basic performance experimental method JGJ70-2009》Test, total fuel value, burning net heating value according to《Building
Material combustion calorimeter test method GBT14402-2007》Test.
Above-mentioned adhesion strength, tensile bond strength（With cement mortar）, tensile bond strength（With expansion polyphenyl plate）To comment
The index parameter of adhesive mortar adhesive property prepared by valency.The fireproof bonding sand prepared from above-mentioned test result, the present invention
The adhesion strength of slurry, tensile bond strength（With cement mortar）, stretch-bonded mortar（With expansion polyphenyl plate）Performance with compareing
Group 1（Embodiment 4）With control group 2（Embodiment 5 is close）.The gross heat of combustion value of fireproof bonding mortar prepared by the present invention, burning
Net heating value is significantly less than control group 1（Embodiment 4）With control group 2（Embodiment 5）, i.e. the fireproof bonding mortar for preparing of the present invention exists
Performance in terms of anti-flammability is substantially better than control group 1（Embodiment 4）With control group 2（Embodiment 5）.Thus prove, present invention system
Standby fireproof bonding mortar is while with good adhesive property, with good anti-flammability.
In order to the flame resistance effect of the obtained fireproof bonding mortar of more intuitively checking, embodiment 1-3 is obtained
Fireproof bonding mortar, and embodiment 4 and 5 obtain adhesive mortar（Respectively control group 1 and control group 2）Carry out anti-flammability
Can test.During test, in order to accelerate experiment process and speed, the adhesive mortar of acquisition is applied on warming plate, warming plate is put
Put progress anti-flammability test after 5 days.During test, by binding sand pulp layer and flame contact, temperature is 750 DEG C, and the testing time is
25s.Observation, which whether there is, burns, melt or dropping etc., and test result is as follows：
It was found from test result, the anti-flammability performance of fireproof bonding mortar of the invention is substantially better than embodiment 4（Control group
1）With 5（Control group 2）The adhesive mortar of acquisition.Thus prove, the adhesive mortar that obtains of the present invention is strong with good bonding
While spending, with good anti-flammability.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area it is general
Lead to it will be appreciated by the skilled person that can be modified to technical scheme or equivalent substitution, without departing from technical solution of the present invention
Objective and scope, it all should cover among scope of the presently claimed invention.
Claims (8)
1. a kind of fireproof bonding mortar, is made up of the component of following parts by weight：The 425R normal silicate water of 385-420 mass parts
Mud, 470-510 mass parts drying sand, the defoamer of 11-13 mass parts, the water reducer of 8-12 mass parts, 6-9 mass parts it is micro-
Silica flour, the powdered whiting of 50-100 mass parts, 3-6 mass parts viscosity for 200,000 mPas hydroxypropyl methyl cellulose,
The redispersable latex powder of 12-15 mass parts, the fire prevention powder of 25-36 mass parts.
2. fireproof bonding mortar according to claim 1, it is characterised in that：It is made up of the component of following parts by weight：400 matter
Measure the 425R Portland cements of part, the drying sand of 500 mass parts, the defoamer of 12 mass parts, the water reducer of 10 mass parts,
The SILICA FUME of 8 mass parts, the powdered whiting of 80 mass parts, the hydroxypropyl methyl cellulose of 4.5 mass parts, 13.5 mass parts
The fire prevention powder of redispersable latex powder, 32 mass parts.
3. fireproof bonding mortar according to claim 1, it is characterised in that：The husky specification of the drying is 70-140 mesh.
4. fireproof bonding mortar according to claim 1, it is characterised in that：The fire prevention powder is inorganic additive flame retardant
Agent.
5. fireproof bonding mortar according to claim 4, it is characterised in that：The inorganic additive flame retardant it is main into
It is divided into magnesium hydroxide or aluminium hydroxide.
6. prepare the method for fireproof bonding mortar as defined in claim 1, it is characterised in that：The fireproof bonding mortar
Preparation comprise the following steps：
A, weighed by raw material ratio, then raw material are inserted in feed bin, is mixed and is continuously stirred, is stirred for
Uniformly；
B, by mixture made from step A and water according to proportion by weight 1:0.15-1:0.3 stirs 6-9 minutes in mixer
Into uniform pulpous state, you can the fireproof bonding mortar of construction must be used for.
7. method according to claim 6, it is characterised in that：The proportion by weight of mixture and water is in the step B
1:0.25 。
8. application of the fireproof bonding mortar in fire resistant coating as described in any one of claim 1 to 5.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106116389A (en) * | 2016-07-04 | 2016-11-16 | 德清扬泰建筑材料有限公司 | A kind of environment-friendly type water proof fire retardant dry powder and mortar and preparation method thereof |
| CN107399955B (en) * | 2017-08-07 | 2020-08-18 | 李建朝 | AB composite insulation board and insulation board assembly |
| CN109129829A (en) * | 2018-09-03 | 2019-01-04 | 云南永峰环境工程有限公司 | A kind of silicon oxygen magnesium fire prevention board production technology |
| CN109836098A (en) * | 2019-03-14 | 2019-06-04 | 南通职业大学 | A kind of ground tile paving binding material, preparation method and application |
| CN110627455A (en) * | 2019-11-05 | 2019-12-31 | 厦门高辰新材料有限公司 | High-molecular beneficial daub and preparation method thereof |
| CN115109601B (en) * | 2022-06-30 | 2023-06-13 | 广东电网有限责任公司 | Environment-friendly flame retardant, and preparation method and application thereof |
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| CN101786829A (en) * | 2010-01-29 | 2010-07-28 | 天津市金岸保温材料有限公司 | Fireproof interface mortar, preparation method and application thereof |
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| WO2014122085A1 (en) * | 2013-02-05 | 2014-08-14 | Promat Research and Technology Centre NV | Fire protection mortar |
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| CN101786829A (en) * | 2010-01-29 | 2010-07-28 | 天津市金岸保温材料有限公司 | Fireproof interface mortar, preparation method and application thereof |
| CN102503285A (en) * | 2011-11-10 | 2012-06-20 | 南京工业大学 | Polymer modified early strength repair mortar and preparation method and application thereof |
| WO2014122085A1 (en) * | 2013-02-05 | 2014-08-14 | Promat Research and Technology Centre NV | Fire protection mortar |
| CN104402362A (en) * | 2014-11-20 | 2015-03-11 | 天津市欧陆建材有限公司 | Colored finish mortar based on inorganic gel system |
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