CN107935624A - A kind of self-heat conserving lightweight aggregate building block and preparation method thereof - Google Patents
A kind of self-heat conserving lightweight aggregate building block and preparation method thereof Download PDFInfo
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- CN107935624A CN107935624A CN201711349094.3A CN201711349094A CN107935624A CN 107935624 A CN107935624 A CN 107935624A CN 201711349094 A CN201711349094 A CN 201711349094A CN 107935624 A CN107935624 A CN 107935624A
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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
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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
- 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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight 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
- C04B2111/52—Sound-insulating materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- 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
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to build novel wall material technical field, and in particular to a kind of self-heat conserving lightweight aggregate building block, its preparing raw material include following weight percent composition：40 45% cement, 30 40% haydites of book structure, 10 15% pottery sands, 5 10% flyash, 0.5 1% foaming agent and 0.5 0.8% rubber powder.The self-heat conserving lightweight aggregate building block has the advantages that apparent density is light, intensity is high, heat preservation and insulation is excellent, water absorption rate is low, frost resistance is good, shrinking percentage is small, anti-permeability performance is strong, fire prevention and durability are excellent, sound insulating and absorbing effect is good, has the performances such as good antidetonation shock attenuation surface adhesion strength is high；The added value for also achieving solid waste at the same time utilizes, and has higher economic value and application value.
Description
Technical field
The invention belongs to build novel wall material technical field, and in particular to a kind of self-heat conserving lightweight aggregate building block and its system
Preparation Method.
Background technology
China's building energy conservation uses External Thermal Insulation Technology for External and outer wall self heat-preserving technology more at present：External wall heat insulation system is deposited
In many problems, be mainly manifested in that outer wall cracking, impact resistance be poor, durability difference etc., and outer wall self heat-preserving technology be by
Building body and the heat-insulation and heat-preservation of building enclosure combine together, compared with external wall heat insulation system, have cheap, maintenance expense
With it is low, external decoration is diversified, with building body with advantages such as service lifes.
Most self-insurance temperature technique, as construction material, is leaned on using new heat insulation building block in geographical location
North, the area of winter weather cold, the heat insulation building block as building exterior wall material are usually fragile broken due to frost resistance difference
Bad wall insulation performance, rainy moist climate area is since its permeability resistance is poor, and water absorption rate is high and causes building block to be damaged, heat insulating ability
Decline, this is all unfavorable for the popularization and application of outer wall self heat-preserving technology, also hinders the smooth of China's energy-saving and emission-reduction planning to implement and real
It is existing.
The content of the invention
Based on problem above, one purpose of the present invention is to provide that a kind of apparent density is light, intensity is high, heat preservation and insulation
It is excellent, water absorption rate is low, frost resistance is good, shrinking percentage is small, anti-permeability performance is strong, fire prevention and durability it is excellent, sound insulating and absorbing effect is good, antidetonation subtracts
The self-heat conserving lightweight aggregate building block that pinking is good, surface adhesion strength is high.
Another object of the present invention is to provide a kind of preparation method of the self-heat conserving lightweight aggregate building block.
The technical scheme is that：
The present invention provides a kind of self-heat conserving lightweight aggregate building block, and the preparing raw material of the building block includes following percentage by weight group
Point：40-45% cement, 30-40% haydites of book structure, 10-15% pottery sands, 5-10% flyash, 0.5-1% foaming agents and 0.5-
0.8% rubber powder.
The self-heat conserving lightweight aggregate building block of the present invention is combined with the component of above-mentioned percentage by weight and prepared, and makes the component
Between cooperate, the building block shrinking percentage being prepared is small, frost resistance is good, and thermal and insulating performance is excellent, and endurance quality is excellent, make
For the core material of Self-thermal-insulation System technology, it is ensured that the permanent service life of construction wall, is unlikely to frequently maintenance and throws
Enter a large amount of manpower and materials to be safeguarded.
Self-heat conserving lightweight aggregate building block according to the present invention, the haydites of book structure include the chemical group of following percentage by weight
Part：60-70%SiO2, 5-8%T2O3, 15-20%A12O3, the oxide and K of iron2O total amounts are 7-10%, and 0.5-3%
Other oxide impurities.The chemical composition of the haydites of book structure participates in determining intensity, the antidetonation of the self-heat conserving lightweight aggregate building block
Property, fire line and anti-freezing property etc..
Self-heat conserving lightweight aggregate building block according to the present invention, the preparing raw material further include 4-10% sludge ceramsites, the dirt
Mud haydite particle diameter is 5-15mm.
Self-heat conserving lightweight aggregate building block according to the present invention, the haydites of book structure are prepared through 1120-1180 DEG C of sintering, institute
The moisture content for stating haydites of book structure is 10-20%, and the compression strength of the haydites of book structure is not less than 2MP.
Self-heat conserving lightweight aggregate building block according to the present invention, the particle diameter of the haydites of book structure is 5-15mm, porosity 30-
35%.The particle diameter and porosity of the haydites of book structure can ensure the small unit weight of the self-heat conserving lightweight aggregate building block, sound insulation and resist
Shock stability.
Self-heat conserving lightweight aggregate building block according to the present invention, the granularity of the pottery sand are 10-100 mesh, porosity 4-6%.
The pottery sand of the granularity and the haydites of book structure of the particle diameter cooperatively form continuous grading, are less than the unit weight of the building block aggregate
430kg2m3。
Self-heat conserving lightweight aggregate building block according to the present invention, the haydites of book structure sinter in preparation process and add pore creating material, institute
Pore creating material is stated as the one or more in straw powder, rice chaff, fiber and sawdust, the additive amount of the foaming agent is made pottery for the shale
The 2.5-3% of grain raw material weight.The pore creating material is at high temperature through fully oxidized reaction, so as to get the haydites of book structure in
Uniformly densely stomata is formed, apparent density is big, and adhesion strength is high, good with the compatibility of cement mortar etc., is prepared in building block
Cheng Zhong, after cleaved, can leak out a large amount of open pores in haydites of book structure.
The preparation method of self-heat conserving lightweight aggregate building block according to the present invention, comprises the following steps：
(1) powder cement, coal ash, haydites of book structure, pottery sand and water are mixed and stirred for uniformly obtaining the first mixed slurry, raw material
During including sludge ceramsite, the addition mixing in the lump in this step by the sludge ceramsite；
(2) foaming agent and rubber powder are mixed into first mixed slurry, are uniformly mixed, obtain self-heat conserving lightweight aggregate
Slurry；
(3) the self-heat conserving lightweight aggregate slurry is subjected to mould molding and cut, obtain wet base；
(4) maintenance area after the wet base natural curing at normal temperatures, will be transferred to be conserved, maintenance area's temperature is 30-60
DEG C, humidity 60-90%, heating rate is 15-20 DEG C 22, goes out to conserve area after the moisture content of the wet base is less than 5%, again
After carrying out room temperature natural curing, that is, obtain the self-heat conserving lightweight aggregate building block.
The preparation method of self-heat conserving lightweight aggregate building block according to the present invention, the plasticity index of first mixed slurry are
17-26, moisture content 25-30%.The moisture content of first mixed slurry limits and plasticity index is defined beneficial in next step
It is rapid add foaming agent and rubber powder after uniformly mixed and the plasticity index of self-heat conserving lightweight aggregate slurry and moisture content are conducive to
Mould molding and cutting, after being conserved, the even air hole distribution in it, heat-insulated, heat insulating ability, water imbibition, permeability resistance, contraction
Rate etc. is up to standard, it is homogeneous, even show it is excellent.
Further preferably, the plasticity index of first mixed slurry is 20, moisture content 30%, in the qualifications
Under, the comprehensive performance of the building block finally obtained is best.
The preparation method of self-heat conserving lightweight aggregate building block according to the present invention, in step (1), speed of agitator 2000-
3000r2min, time 3-4min；In step (2), speed of agitator 2000-3000r2min, time 1-2min.
The preparation method of self-heat conserving lightweight aggregate building block according to the present invention, in step (4), the room temperature natural curing
When time is 10-15 small, after being less than 20% to the wet base moisture content, it is transferred to maintenance area and is conserved, the maintenance in maintenance area
When time is 24-36 small, the time for carrying out room temperature natural curing again is 4-6 days.
Using the self-heat conserving lightweight aggregate building block unit weight made from this preparation method as 550-950kg2m3, apparent density≤
750kg2m3, compression strength >=5.0MP, drying shrinkage value≤0.35mm2m, water absorption rate≤20%, heat transfer coefficient≤1.2W2m
K, thermal inertia >=3.0.After 15 Frozen-thawed cycleds, the mass loss rate of building block exists for self-heat conserving lightweight aggregate building block of the present invention
Less than 0.85%, loss of strength rate is small far below mass loss rate after 15 Frozen-thawed cycleds in national standard below 4.35%
In 5%, loss of strength rate is less than 20% regulation.
Beneficial effects of the present invention are：
The present invention provides a kind of self-heat conserving lightweight aggregate building block, its preparing raw material includes following weight percent composition：40-
45% cement, 30-40% haydites of book structure, 10-15% pottery sands, 5-10% flyash, 0.5-1% foaming agents and 0.5-0.8% glue
Powder.The self-heat conserving lightweight aggregate building block is with apparent density is light, intensity is high, heat preservation and insulation is excellent, water absorption rate is low, frost resistance
Well, shrinking percentage is small, anti-permeability performance is strong, fire prevention and durability are excellent, sound insulating and absorbing effect is good, has good antidetonation shock attenuation surface to bond
The performances such as the advantages of intensity is high；The added value for also achieving solid waste at the same time utilizes, and has higher economic value with answering
With value.
The preparation method of the self-heat conserving lightweight aggregate building block, according to the respective performances of each raw material components, formulates order of addition
And be uniformly mixed, obtain plasticity index and the certain self-heat conserving lightweight aggregate slurry of moisture content carries out mould molding and cutting, in it
Even air hole distribution, performance stable homogeneous.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all on the premise of creative work is not made
Other embodiment, belongs to the scope that the present invention is protected.
Embodiment 1
The present invention provides a kind of self-heat conserving lightweight aggregate building block, and the preparing raw material of the building block includes following percentage by weight group
Point：40% cement, 34% haydites of book structure, 15% pottery sand, 10% flyash, 0.5% foaming agent and 0.5% rubber powder.
The haydites of book structure is prepared through 1120 DEG C of sintering, the pore-creating added in the haydites of book structure sintering preparation process
Agent is straw powder, and additive amount is the 2.5% of the haydites of book structure raw material weight；
The moisture content of the haydites of book structure is 10%, porosity 35%, particle diameter 5-15mm.
The haydites of book structure includes the chemical composition of following percentage by weight：
60%SiO2、
8%T2O3、
20%A12O3、
The oxide and K of iron2O total amounts for 10%,
And 2% other oxide impurities；
The sludge ceramsite particle diameter is 5-15mm；
The granularity of the pottery sand is 10-100 mesh, porosity 6%.
The preparation method of above-mentioned self-heat conserving lightweight aggregate building block, comprises the following steps：
(1) powder cement, coal ash, haydites of book structure, pottery sand and water are mixed and is turned through forced mixer with 2000r2min
Speed stirring 4min, obtains the first mixed slurry, the plasticity index of first mixed slurry is 17, moisture content 25%；
(2) foaming agent and rubber powder are mixed into first mixed slurry, are stirred with the rotating speed of 3000r2min
1min, is uniformly mixed, obtains self-heat conserving lightweight aggregate slurry；
(3) the self-heat conserving lightweight aggregate slurry is subjected to mould molding and cut, obtain wet base；
(4) by the wet base natural curing at normal temperatures 10 it is small when, be transferred to maintenance area conserved, maintenance area's temperature be
30-60 DEG C, humidity 60%, heating rate is 20 DEG C 22, when maintenance 24 is small, is gone out after the moisture content of the wet base is less than 5%
Area is conserved, after carrying out room temperature natural curing again 6 days, that is, obtains the self-heat conserving lightweight aggregate building block.
Embodiment 2
The present invention provides a kind of self-heat conserving lightweight aggregate building block, and the preparing raw material of the building block includes following percentage by weight group
Point：45% cement, 31% haydites of book structure, 4% sludge ceramsite, 10% pottery sand, 8.2% flyash, 1% foaming agent and 0.8% glue
Powder.
The haydites of book structure is prepared through 1180 DEG C of sintering, the pore-creating added in the haydites of book structure sintering preparation process
Agent is rice chaff, and additive amount is the 3% of the haydites of book structure raw material weight；
The moisture content of the haydites of book structure is 20%, porosity 30%, particle diameter 5-15mm.
The haydites of book structure includes the chemical composition of following percentage by weight：
70%SiO2、
5%T2O3、
15%A12O3、
The oxide and K of iron2O total amounts for 7%,
And 3% other oxide impurities；
The sludge ceramsite particle diameter is 5-15mm；
The granularity of the pottery sand is 10-100 mesh, porosity 4%.
The preparation method of above-mentioned self-heat conserving lightweight aggregate building block, comprises the following steps：
(1) by powder cement, coal ash, haydites of book structure, pottery sand, sludge ceramsite and water mix and through forced mixer with
The rotating speed stirring 3min of 3000r2min, obtains the first mixed slurry, the plasticity index of first mixed slurry is 26, aqueous
Rate is 30%；
(2) foaming agent and rubber powder are mixed into first mixed slurry, are stirred with the rotating speed of 2000r2min
2min, is uniformly mixed, obtains self-heat conserving lightweight aggregate slurry；
(3) the self-heat conserving lightweight aggregate slurry is subjected to mould molding and cut, obtain wet base；
(4) by the wet base natural curing at normal temperatures 15 it is small when, be transferred to maintenance area conserved, maintenance area's temperature be
30-60 DEG C, humidity 90%, heating rate is 15 DEG C 22, when maintenance 36 is small, is gone out after the moisture content of the wet base is less than 3%
Area is conserved, after carrying out room temperature natural curing again 4 days, that is, obtains the self-heat conserving lightweight aggregate building block.
Embodiment 3
The present invention provides a kind of self-heat conserving lightweight aggregate building block, and the preparing raw material of the building block includes following percentage by weight group
Point：42% cement, 40% haydites of book structure, 11.5% pottery sand, 5% flyash, 0.8% foaming agent and 0.7% rubber powder.
The haydites of book structure is prepared through 1150 DEG C of sintering, the pore-creating added in the haydites of book structure sintering preparation process
Agent is fiber and sawdust, and fiber additive amount is the 1.6% of the haydites of book structure raw material weight, and sawdust additive amount is made pottery for the shale
The 1.2% of grain raw material weight；
The moisture content of the haydites of book structure is 15%, porosity 32%, particle diameter 5-15mm.
The haydites of book structure includes the chemical composition of following percentage by weight：
68%SiO2、
6%T2O3、
16%A12O3、
The oxide and K of iron2O total amounts for 9.5%,
And 0.5% other oxide impurities；
The sludge ceramsite particle diameter is 5-15mm；
The granularity of the pottery sand is 10-100 mesh, porosity 5%.
The preparation method of above-mentioned self-heat conserving lightweight aggregate building block, comprises the following steps：
(1) powder cement, coal ash, haydites of book structure, pottery sand and water are mixed and is turned through forced mixer with 2800r2min
Speed stirring 3min, obtains the first mixed slurry, the plasticity index of first mixed slurry is 23, moisture content 28%；
(2) foaming agent and rubber powder are mixed into first mixed slurry, are stirred with the rotating speed of 2900r2min
2min, is uniformly mixed, obtains self-heat conserving lightweight aggregate slurry；
(3) the self-heat conserving lightweight aggregate slurry is subjected to mould molding and cut, obtain wet base；
(4) by the wet base natural curing at normal temperatures 12 it is small when, be transferred to maintenance area conserved, maintenance area's temperature be
30-60 DEG C, humidity 85%, heating rate is 18 DEG C 22, when maintenance 32 is small, is gone out after the moisture content of the wet base is less than 3%
Area is conserved, after carrying out room temperature natural curing again 5 days, that is, obtains the self-heat conserving lightweight aggregate building block.
Embodiment 4
The present invention provides a kind of self-heat conserving lightweight aggregate building block, and the preparing raw material of the building block includes following percentage by weight group
Point：40% cement, 30% haydites of book structure, 10% sludge ceramsite, 11% pottery sand, 8% flyash, 0.5% foaming agent and 0.5% glue
Powder.
The haydites of book structure is prepared through 1150 DEG C of sintering, the pore-creating added in the haydites of book structure sintering preparation process
Agent is straw powder and rice chaff, and straw powder additive amount is the 1.5% of the haydites of book structure raw material weight, and rice chaff additive amount is the page
The 1% of rock ceramic granule raw material weight；
The moisture content of the haydites of book structure is 15%, porosity 33%, particle diameter 5-15mm.
The haydites of book structure includes the chemical composition of following percentage by weight：
70%SiO2、
5%T2O3、
16%A12O3、
The oxide and K of iron2O total amounts for 8%,
And 1% other oxide impurities；
The sludge ceramsite particle diameter is 5-15mm；
The granularity of the pottery sand is 10-100 mesh, porosity 5%.
The preparation method of above-mentioned self-heat conserving lightweight aggregate building block, comprises the following steps：
(1) by powder cement, coal ash, haydites of book structure, pottery sand, sludge ceramsite and water mix and through forced mixer with
The rotating speed stirring 4min of 3000r2min, obtains the first mixed slurry, the plasticity index of first mixed slurry is 20, aqueous
Rate is 30%；
(2) foaming agent and rubber powder are mixed into first mixed slurry, are stirred with the rotating speed of 3000r2min
2min, is uniformly mixed, obtains self-heat conserving lightweight aggregate slurry；
(3) the self-heat conserving lightweight aggregate slurry is subjected to mould molding and cut, obtain wet base；
(4) by the wet base natural curing at normal temperatures 15 it is small when, be transferred to maintenance area conserved, maintenance area's temperature be
30-60 DEG C, humidity 90%, heating rate is 20 DEG C 22, when maintenance 36 is small, is gone out after the moisture content of the wet base is less than 5%
Area is conserved, after carrying out room temperature natural curing again 6 days, that is, obtains the self-heat conserving lightweight aggregate building block.
Self-heat conserving lightweight aggregate building block unit weight described in above-described embodiment 1-4 is 550-950kg2m3, apparent density≤
750kg2m3, compression strength >=5.0MP, drying shrinkage value≤0.35mm2m, water absorption rate≤20%, heat transfer coefficient≤1.2W2m
K, thermal inertia >=3.0.After 15 Frozen-thawed cycleds, the mass loss rate of building block exists for self-heat conserving lightweight aggregate building block of the present invention
Less than 0.85%, loss of strength rate is small far below mass loss rate after 15 Frozen-thawed cycleds in national standard below 4.35%
In 5%, loss of strength rate is less than 20% regulation.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of self-heat conserving lightweight aggregate building block, it is characterised in that the preparing raw material of the building block includes following percentage by weight group
Point：40-45% cement, 30-40% haydites of book structure, 10-15% pottery sands, 5-10% flyash, 0.5-1% foaming agents and 0.5-
0.8% rubber powder.
2. self-heat conserving lightweight aggregate building block according to claim 1, it is characterised in that the preparing raw material further includes 4-10%
Sludge ceramsite.
3. self-heat conserving lightweight aggregate building block according to claim 1, it is characterised in that the haydites of book structure includes following weight
The chemical composition of percentage：60-70%SiO2, 5-8%T2O3, 15-20%A12O3, the oxide and K of iron2O total amounts are 7-
10%, and other oxide impurities of 0.5-3%.
4. self-heat conserving lightweight aggregate building block according to claim 1, it is characterised in that the haydites of book structure is through 1120-1180
DEG C sintering is prepared, and the moisture content of the haydites of book structure is 10-20%.
5. self-heat conserving lightweight aggregate building block according to claim 1, it is characterised in that the particle diameter of the haydites of book structure is 5-
15mm, porosity 30-35%.
6. self-heat conserving lightweight aggregate building block according to claim 1, it is characterised in that the granularity of the pottery sand is 10-100
Mesh, porosity 4-6%.
7. self-heat conserving lightweight aggregate building block according to claim 4, it is characterised in that the haydites of book structure sinters preparation process
Middle addition pore creating material, the pore creating material are the one or more in straw powder, rice chaff, fiber and sawdust, and the pore creating material adds
Dosage is the 2.5-3% of the haydites of book structure raw material weight.
8. the preparation method of any self-heat conserving lightweight aggregate building blocks of claim 1-7, it is characterised in that including following step
Suddenly：
(1) powder cement, coal ash, haydites of book structure, pottery sand and water are mixed and stirred for uniformly obtaining the first mixed slurry, raw material includes
During sludge ceramsite, the addition mixing in the lump in this step by the sludge ceramsite；
(2) foaming agent and rubber powder are mixed into first mixed slurry, are uniformly mixed, obtain self-heat conserving lightweight aggregate slurry
Material；
(3) the self-heat conserving lightweight aggregate slurry is subjected to mould molding and cut, obtain wet base；
(4) maintenance area after the wet base natural curing at normal temperatures, will be transferred to be conserved, maintenance area's temperature is 30-60 DEG C, wet
It is 15-20 DEG C 22 to spend for 60-90%, heating rate, goes out to conserve area after the moisture content of the wet base is less than 5%, carries out again
After room temperature natural curing, that is, obtain the self-heat conserving lightweight aggregate building block.
9. preparation method according to claim 8, it is characterised in that the plasticity index of first mixed slurry is 17-
26, moisture content 25-30%.
10. preparation method according to claim 8, it is characterised in that in step (4), the room temperature natural curing
When time is 10-15 small, after being less than 20% to the wet base moisture content, it is transferred to maintenance area and is conserved, the maintenance in maintenance area
Time for the 24-36 hour moisture content to the wet base below 3% when, again progress room temperature natural curing time be 4-6
My god.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108609976A (en) * | 2018-05-23 | 2018-10-02 | 河南有巢氏环保材料有限公司 | A kind of haydite perlite heat insulation building block and preparation method thereof |
| CN110436839A (en) * | 2019-08-29 | 2019-11-12 | 李益琼 | Self-heat conserving lightweight aggregate partition plate and preparation method thereof |
| CN111606620A (en) * | 2020-04-13 | 2020-09-01 | 江苏鑫康新型墙体材料有限公司 | Preparation method of MU seven-point five-level ceramsite composite self-insulation brick |
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