CN110066155A - A kind of building block and preparation method thereof - Google Patents
A kind of building block and preparation method thereof Download PDFInfo
- Publication number
- CN110066155A CN110066155A CN201910389477.6A CN201910389477A CN110066155A CN 110066155 A CN110066155 A CN 110066155A CN 201910389477 A CN201910389477 A CN 201910389477A CN 110066155 A CN110066155 A CN 110066155A
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- China
- Prior art keywords
- building block
- agent
- level
- inert filler
- foaming agent
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Classifications
-
- 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
- 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
-
- 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
-
- 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
Abstract
The present invention is suitable for building material technical field, a kind of building block and preparation method thereof is provided, which is prepared by following components in percentage by weight: portland cement 29.02 ~ 35%, active blend 35 ~ 40%, inert filler 6 ~ 8%, swelling agent 2 ~ 4%, antimitotic agent 0.8 ~ 1.2%, chemical admixture 0.2 ~ 0.5%, foaming agent 0.08 ~ 0.1% and water 20 ~ 22.4%.Building block of the invention is using portland cement, active blend as primary raw material, and inert filler, swelling agent, antimitotic agent, chemical admixture, the foaming agent of reasonable volume is added, through adding water and stirring, moulding by casting, demoulding maintenance obtains building block product, the building block product has the advantages that environmental protection compared to traditional steam pressurized coagulation scholar building block, energy conservation, safety, intensity height, volume stability, cooperation precision, bright and clean smooth, high-efficiency high-quality, saves cost, is the environment protection health walling that country widelys popularize.
Description
Technical field
The invention belongs to building material technical fields more particularly to a kind of building block and preparation method thereof.
Background technique
Currently, the common light block of common building engineering, is with cement, lime, slag, silica sand, flyash, aluminium powder etc.
It is made of raw material.Although the lightweight that existing building block meets " steam pressurized coagulation scholar building block standard " GB11968-2006 requirement is more
Hole silicate product, have many advantages, such as it is light, keep the temperature, prevent fires, can saw, can dig, is easy to process, but there is problems
And defect:
1. needing autoclave curing, therefore steam pressure equipment need to be configured, cause equipment purchasing, operation and maintenance, safety and environmental protection
Management investment is big, and relative cost is high.
2. surface strength is low, it is easy losing fangle in handling process, in addition its rough surface, therefore needs thicker plastering mortar
Repairing with it is levelling, cause that construction site wet construction is more, high material consumption, high labor cost.
3. water suction is high, surface strength is low, easily plays powder, easily causes mortar dehydration fast, poor with mortar bonding, be led to coat of plaster
The quality problems that cracking, hollowing even fall off, therefore the performances such as the water conservation to mortar, bonding, cracking resistance and plastering construction technique
There is very high requirement.
4. building faying face without positioning tongue-and-groove, worker need to spend the straightness of more time control wall, manually when building
It is at high cost.
It can be seen that existing building block still has the problem that of low quality, construction operation requirement is high and maintenance cost is high.
Summary of the invention
The embodiment of the present invention provides a kind of building block, it is intended to solve that existing building block is of low quality, construction operation requirement is high and
The high problem of maintenance cost.
The embodiments of the present invention are implemented as follows, and a kind of building block is prepared: silicic acid by following components in percentage by weight
Salt cement 29.02~35%, active blend 35~40%, inert filler 6~8%, swelling agent 2~4%, antimitotic agent 0.8
~1.2%, chemical admixture 0.2~0.5%, foaming agent 0.08~0.1% and water 20~22.4%.
The embodiment of the invention also provides a kind of preparation methods of building block, and described method includes following steps: according to such as power
Benefit requires building block formula described in 1~8 any one to weigh each raw material, spare；
Portland cement, active blend, inert filler and swelling agent are added in level-one blender and stir 30~60
Second, chemical admixture and water are added, is stirred 2~5 minutes, level-one stirring mixture is obtained；
Level-one stirring mixture is transferred in secondary blender, antimitotic agent is added and stirs 1~2 minute, obtains
Second level stirs mixture；
After foam is made in the foaming agent, it is added in the second level stirring mixture, stirs 2~5 minutes；It obtains to be poured
Infuse mixture；
The mixture to be cast is poured into mold, it is quiet to stop conserving, obtain building block；
When detecting compression strength >=0.5MPA of the building block, the building block is squeezed to abjection from the mold,
Late maintaining is carried out, is detected and is packed after the building block reaches preset factory intensity.
Building block provided in an embodiment of the present invention is added and rationally uses using portland cement, active blend as primary raw material
Inert filler, swelling agent, antimitotic agent, chemical admixture, the foaming agent of amount, through adding water and stirring, moulding by casting, demoulding is conserved
To building block product, which has environmental protection, energy conservation, safety, intensity compared to traditional steam pressurized coagulation scholar building block
Height, cooperation precision, bright and clean smooth, high-efficiency high-quality, saves the advantages of cost at volume stability, is the ring health care that country widelys popularize
Health walling.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Building block provided in an embodiment of the present invention is added and rationally uses using portland cement, active blend as primary raw material
Inert filler, swelling agent, antimitotic agent, chemical admixture, the foaming agent of amount, through adding water and stirring, moulding by casting, demoulding is conserved
To building block product, which has environmental protection, energy conservation, safety, intensity compared to traditional steam pressurized coagulation scholar building block
Height, cooperation precision, bright and clean smooth, high-efficiency high-quality, saves the advantages of cost at volume stability, is the ring health care that country widelys popularize
Health walling.
The embodiment of the invention provides a kind of building blocks, are prepared by following components in percentage by weight:
Portland cement 29.02~35%, active blend 35~40%, inert filler 6~8%, swelling agent 2~
4%, antimitotic agent 0.8~1.2%, chemical admixture 0.2~0.5%, foaming agent 0.08~0.1% and water 20~22.4%.
In a preferred embodiment of the invention, building block is prepared by following components in percentage by weight:
Portland cement 29.64%, inert filler 7.41%, swelling agent 2.29%, resists active blend 37.04%
Split agent 0.91%, chemical admixture 0.31%, foaming agent 0.09% and water 22.31%.
Preferably, the active blend is the mixture of flyash and slag powders.
Preferably, the inert filler is ceramic polished powder.
Preferably, the swelling agent is anhydrous gypsum.
Preferably, the antimitotic agent is alkaline-resisting monofilament short glass fiber or polypropene staple.
Preferably, the chemical admixture is high performance water reducing agent of polyocarboxy acid.
Preferably, the foaming agent is composite type animal protein foaming agent.
The embodiment of the invention also provides a kind of preparation methods of building block, include the following steps:
Each raw material is weighed according to above-mentioned building block formula, it is spare；
Portland cement, active blend, inert filler and swelling agent are added in level-one blender and stir 30~60
Second, chemical admixture and water are added, is stirred 2~5 minutes, level-one stirring mixture is obtained；
Level-one stirring mixture is transferred in secondary blender, antimitotic agent is added and stirs 1~2 minute, obtains
Second level stirs mixture；
After foam is made in the foaming agent, it is added in the second level stirring mixture, stirs 2~5 minutes, obtain to be poured
Infuse mixture；
The mixture to be cast is poured into mold, it is quiet to stop conserving, obtain building block；
When detecting compression strength >=0.5MPA of the building block, the building block is squeezed to abjection from the mold,
Late maintaining is carried out, is detected and is packed after the building block reaches preset factory intensity.
In embodiments of the present invention, described when detecting compression strength >=0.5MPA of the building block, by the building block
The step of squeezing abjection from the mold, carrying out late maintaining, specifically includes:
When detecting compression strength >=0.5MPA of the building block, the building block is squeezed to abjection from the mold simultaneously
It is placed in the mist room of constant temperature and humidity, carries out late maintaining.
In embodiments of the present invention, the building block for squeezing abjection can be placed on to temperature not less than 22 DEG C, humidity is not less than
Late maintaining is carried out in 90% mist room；Or building block is placed in the water not less than 22 DEG C to keep its temperature and humidity.
Technical solution of the present invention and technical effect are described further below by way of specific embodiment.
Embodiment 1
Each raw material is weighed according to the following recipe, it is spare: portland cement 29.64%, active blend (flyash
25.93%+ slag powders 11.11%) 37.04%, inert filler (ceramic polished powder) 7.41%, swelling agent (anhydrous gypsum)
2.29%, antimitotic agent (polypropene staple) 0.91%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.31%, foaming agent
(composite type animal protein foaming agent) 0.08% and water 22.32%.
The building block of the present embodiment is prepared from the following steps:
Stirring in level-one blender (middling speed) is added in portland cement, active blend, inert filler and swelling agent
40 seconds, chemical admixture and water are added, is stirred 3 minutes, level-one stirring mixture is obtained；
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 1 minute, obtains second level stirring mixture；
After foam is made in foaming agent, it is added in second level stirring mixture, stirs 3 minutes, obtain mixture to be cast.Tool
Body, foam is made in diluted physical blowing agent using foaming machine, the slurry of second level low-speed mixer is injected into through flowmeter
In material.
Mixture to be cast is poured into mold, it is quiet to stop conserving.Specifically, second level is stirred at low speed using hopper is turned
The mixture to be cast mixed and stirred in machine, is poured into mold, obtains building block.
It is quiet to stop conserving: to use natural curing, during which carry out moisturizing covering treatment to pouring the mold for being poured in slurry, and carry out
Mark, preferably to identify the condensation hardening state of slurry in every group of mold, does the record of production.
When detecting compression strength >=0.5MPA of building block, building block is squeezed to abjection from the mold.
Late maintaining: the building block of abjection is placed in the mist room of constant temperature and humidity, and wherein the temperature in mist room is controlled at 22 DEG C,
Humid control is 90%.
After building block reaches preset factory intensity, building block product is removed into mist room, checks its apparent size, and with automatically
Packing machine is packed, and packaged building block system is moved to the stacking of stock area.
Embodiment 2
Each raw material is weighed according to the following recipe, it is spare: portland cement 29.10%, active blend (flyash
25.47%+ slag powders 10.91%) 36.38%, inert filler (ceramic polished powder) 7.28%, swelling agent (anhydrous gypsum)
3.83%, antimitotic agent (alkaline-resisting monofilament short glass fiber) 0.65%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.31%,
Foaming agent (composite type animal protein foaming agent) 0.08% and water 22.37%.
The block preparation method and above-described embodiment 1 of the present embodiment are essentially identical, the difference is that only:
Stirring in level-one blender (middling speed) is added in portland cement, active blend, inert filler and swelling agent
50 seconds, chemical admixture and water are added, is stirred 5 minutes, level-one stirring mixture is obtained；
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 2 minutes, obtains second level stirring mixture；
After foam is made in foaming agent, it is added in second level stirring mixture, stirs 5 minutes, obtain mixture to be cast.Tool
Body, foam is made using the diluted physical blowing agent of foaming machine, the slurry of second level low-speed mixer is injected into through flowmeter
In.
Late maintaining: the building block of abjection is placed in the mist room of constant temperature and humidity, and wherein the temperature in mist room is controlled at 32 DEG C,
Humid control is 100%.
Embodiment 3:
Each raw material is weighed according to the following recipe, it is spare: portland cement 29.64%, active blend (flyash
25.93%+ slag powders 11.11%) 37.04%, inert filler (ceramic polished powder) 7.41%, swelling agent (anhydrous gypsum)
2.29%, antimitotic agent (alkaline-resisting monofilament short glass fiber) 0.91%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.31%,
Foaming agent (composite type animal protein foaming agent) 0.09% and water 22.31%.
The block preparation method of the present embodiment is identical as above-described embodiment 1, the difference is that only:
Stirring in level-one blender (middling speed) is added in portland cement, active blend, inert filler and swelling agent
30 seconds, chemical admixture and water are added, is stirred 2 minutes, level-one stirring mixture is obtained；
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 2 minutes, obtains second level stirring mixture；
After foam is made in foaming agent, it is added in second level stirring mixture, stirs 3 minutes, obtain mixture to be cast.Tool
Body, foam is made using the diluted physical blowing agent of foaming machine, the slurry of second level low-speed mixer is injected into through flowmeter
In.
Late maintaining: the building block of abjection is placed in the mist room of constant temperature and humidity, and wherein the temperature in mist room is controlled at 27 DEG C,
Humid control is 95%.
Embodiment 4
Each raw material is weighed according to the following recipe, it is spare: portland cement 29.03%, active blend (flyash 25.4%
+ slag powders 10.89%) 36.29%, it is inert filler (ceramic polished powder) 7.26%, swelling agent (anhydrous gypsum) 3.82%, anti-
Split agent (alkaline-resisting monofilament short glass fiber) 0.91%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.31%, foaming agent (again
Mould assembly animal protein foaming agent) 0.08% and water 22.3%.
The block preparation method of the present embodiment is identical as above-described embodiment 1, the difference is that only:
Stirring in level-one blender (middling speed) is added in portland cement, active blend, inert filler and swelling agent
60 seconds, chemical admixture and water are added, is stirred 2 minutes, level-one stirring mixture is obtained；
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 1 minute, obtains second level stirring mixture；
After foam is made in foaming agent, it is added in second level stirring mixture, stirs 4 minutes, obtain mixture to be cast.Tool
Body, foam is made using the diluted physical blowing agent of foaming machine, the slurry of second level low-speed mixer is injected into through flowmeter
In.
Late maintaining: the building block of abjection is placed in the mist room of constant temperature and humidity, and wherein the temperature in mist room is controlled at 28 DEG C,
Humid control is 95%.
Embodiment 5
Each raw material is weighed according to the following recipe, it is spare: portland cement 30%, active blend (flyash 27%+ slag
Powder 10%) 37%, inert filler (ceramic polished powder) 7.5%, swelling agent (anhydrous gypsum) 2.3%, antimitotic agent (alkaline-resisting monofilament
Short glass fiber) 0.9%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.3%, foaming agent (composite type animal albumen hair
Infusion) 0.09% and water 21%.
The block preparation method of the present embodiment is identical as above-described embodiment 1, the difference is that only:
Stirring in level-one blender (middling speed) is added in portland cement, active blend, inert filler and swelling agent
45 seconds, chemical admixture and water are added, is stirred 2 minutes, level-one stirring mixture is obtained；
After foam is made in foaming agent, it is added in second level stirring mixture, stirs 5 minutes, obtain mixture to be cast.Tool
Body, foam is made using the diluted physical blowing agent of foaming machine, the slurry of second level low-speed mixer is injected into through flowmeter
In.
Embodiment 6
Each raw material is weighed according to the following recipe, it is spare: portland cement 35%, active blend (flyash 24%+ slag
Powder 11%) 35%, inert filler (ceramic polished powder) 6%, swelling agent (anhydrous gypsum) 2%, antimitotic agent (the alkaline-resisting short glass of monofilament
Glass fiber) 1.2%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.2%, foaming agent (composite type animal protein foaming agent)
0.09% and water 20.51%.
The preparation method of the building block of the present embodiment is identical as above-described embodiment 1.
Embodiment 7
Each raw material is weighed according to the following recipe, it is spare: portland cement 30%, active blend (flyash 26%+ slag
Powder 12%) 38%, inert filler (ceramic polished powder) 7%, swelling agent (anhydrous gypsum) 2.3%, (alkaline-resisting monofilament is short for antimitotic agent
Glass fibre) 1.2%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.5%, foaming agent (composite type animal albumen foaming
Agent) 1% and water 20%.
The preparation method of the building block of the present embodiment is identical as above-described embodiment 3.
Embodiment 8
Each raw material is weighed according to the following recipe, it is spare: portland cement 30%, active blend (flyash 28%+ slag
Powder 12%) 40%, inert filler (ceramic polished powder) 6.5%, swelling agent (anhydrous gypsum) 2.22%, antimitotic agent (alkaline-resisting list
Silk short glass fiber) 1%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.2%, foaming agent (composite type animal albumen hair
Infusion) 0.08% and water 20%.
The preparation method of the building block of the present embodiment is identical as above-described embodiment 1.
Embodiment 9
Each raw material is weighed according to the following recipe, it is spare: portland cement 29.02%, active blend (flyash 24.5%
+ slag powders 10.5%) 35%, inert filler (ceramic polished powder) 8%, swelling agent (anhydrous gypsum) 4%, antimitotic agent it is (alkaline-resisting
Monofilament short glass fiber) 1.1%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.4%, foaming agent (composite type animal egg
White hair infusion) 0.08% and water 22.4%.
The preparation method of the building block of the present embodiment is identical as above-described embodiment 1.
Comparative example 1:
Each raw material for standby: portland cement 39.5%, active blend (flyash 19.7%+ is weighed according to the following recipe
Slag powders 19.7%) 38.5%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.4%, foaming agent 0.09% and water
21.51%.
The preparation method of the building block of comparative example 1 and above-described embodiment 3 are essentially identical, the difference is that only:
Late maintaining: the building block of abjection being placed at least 22 DEG C of water, with keep building block product curing temperature and
Humidity.
Comparative example 2:
Each raw material for standby: portland cement 39.11%, active blend (flyash 15.64% is weighed according to the following recipe
+ slag powders 15.64%) 31.28%, inert filler (agstone) 7.82%, chemical admixture (poly-carboxylic high-performance diminishing
Agent) 0.4%, foaming agent 0.09% and water 20.57%, antimitotic agent (alkaline-resisting monofilament short glass fiber) 0.73%.
The block preparation technique that comparative example 2 uses is also differ in that with embodiment 3:
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 1 minute, obtains second level stirring mixture.
Comparative example 3:
Each raw material for standby: portland cement 30.47%, active blend (flyash 30.47% is weighed according to the following recipe
+ slag powders 15.23%) 45.7%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.19%, foaming agent 0.08%, water
22.26% and antimitotic agent (alkaline-resisting monofilament short glass fiber) 1.3%.
The block preparation technique that comparative example 3 uses is also differ in that with embodiment 3:
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 1 minute, obtains second level stirring mixture.
Comparative example 4:
Each raw material for standby: portland cement 30.44%, active blend (flyash 30.44% is weighed according to the following recipe
+ slag powders 11.42%) 41.86%, chemical admixture (high performance water reducing agent of polyocarboxy acid) 0.27%, foaming agent 0.08%, water
22.25%, antimitotic agent (alkaline-resisting monofilament short glass fiber) 1.29% and swelling agent (anhydrous gypsum) 3.81%.
The preparation method of the building block of comparative example 4 and above-described embodiment 3 are essentially identical, the difference is that only:
After reaching proper flow degree to level-one stirring mixture, level-one stirring mixture is transferred to secondary blender
In (low speed), antimitotic agent is added and stirs 1 minute, obtains second level stirring mixture；
Late maintaining: the building block of abjection is placed in the mist room of constant temperature and humidity, and wherein the temperature in mist room is controlled at 22 DEG C,
Humid control is 90%.
Technical effect in order to further illustrate the present invention further elaborates below in conjunction with specific test example:
The dry density for the building block that the embodiment of the present invention 1~9 and comparative example 1~4 are prepared, fire endurance, fire prevention
Grade, heat resistance, sound-proofing, 28 days intensity (including resistance to compression and anti-folding), air shrinkage value, face crack and water absorption rate are surveyed
Examination, test method and test result is as follows:
The test method of above-mentioned projects is as follows:
1, dry density: GB/T11969-2008 " steam-pressing aero-concrete method for testing performance ".
2, fire endurance: GB/T9978.8-2008 " building element fire resistance test method " the 8th part: non-bearing vertically divides
Every component fire resistance test method.
3, fire-protection rating: GB8624-2012 construction material and classification of combustion properties of building materials and products.
4, heat resistance: GB/T10294-2008 " Technology of Steady State Thermal Resistance of Thermal Insulating Material and the measurement in relation to characteristic " Guarded hot plate.
5, sound-proofing: GB/T19889.3-2005 " acoustics building and building element sound insulation measurement " third portion: building element
The laboratory measurement of air-borne sound sound insulation.
6,28 days intensity (including resistance to compression and anti-folding): " the steam-pressing aero-concrete performance test side GB/T11969-2008
Method ".
7, air shrinkage value: GB/T11969-2008 " steam-pressing aero-concrete method for testing performance ".
8, face crack: the crackle number in visual inspection unit area.
9, water absorption rate: GB/T11969-2008 " steam-pressing aero-concrete method for testing performance ".
Test result is detailed in the following table 1:
Table 1
From the test result of upper table 1, it can be concluded that, building block made from the embodiment of the present invention 1~9 is omitted swollen with comparative example 1
Swollen dose, inert filler and antimitotic agent, and late maintaining technique keeps building block made from the humidity of building block using curing in water
It comparing, the dry density of the building block of the embodiment of the present invention 1~9 is smaller, fire endurance increase, heat resistance and sound insulation value promotion,
Resistance to compression in 28 days and flexural strength obviously increase, and air shrinkage value becomes smaller, and no face crack, water absorption rate are decreased obviously.The examination
Test the result shows that, the quality of the building block of the embodiment of the present invention 1~9 is substantially better than the building block of comparative example 1, and it can be concluded that addition
Swelling agent, inert filler and antimitotic agent, late maintaining are adjusted the temperature and humidity of building block using mist room, can be obviously improved building block
Comprehensive performance.
It can be concluded that, inert filler is replaced in comparative example 2 from the comparison result of above-mentioned comparative example 2 and embodiment 3
For agstone, compared with the building block of embodiment 3, the dry density of the building block of embodiment 3 is smaller for building block obtained, fire resisting pole
Limit increases, heat resistance and sound insulation value promotion, resistance to compression in 28 days and flexural strength obviously increase, and air shrinkage value becomes smaller, nothing
Face crack, water absorption rate are decreased obviously.It should be the experimental results showed that Ceramics polishing powder as inert filler, can be mentioned obviously
Rise every comprehensive performance of building block.
From the active blend dosage that can be seen that in the comparison result of above-mentioned comparative example 3 and embodiment 3 in comparative example 3
From 37.04% be promoted to 45.7% (increasing about 9%) afterwards building block obtained compared with the building block of embodiment 3, embodiment 3
The dry density of building block is smaller, and fire endurance increases, heat resistance and sound insulation value promotion, resistance to compression in 28 days and flexural strength obviously have
It is improved, and air shrinkage value becomes smaller, no face crack, water absorption rate are decreased obviously.Should the experimental results showed that, the dosage of active blend
There is important influence for the quality of building block.And it can be concluded that, activity is mixed from the comparison result of Examples 1 to 9 and comparative example 3
The dosage for closing material is preferably 35~40%.
Inert filler is omitted from can be seen that in comparative example 4 in the comparison result of above-mentioned comparative example 4 and embodiment 3,
The dosage of active blend is more than 40%, and the dosage of antimitotic agent is more than 1.2%, the building block phase of building block obtained and embodiment 3
Compare, the dry density of the building block of embodiment 3 is smaller, and fire endurance increases, heat resistance and sound insulation value are promoted, and air shrinkage value becomes
It is small, no face crack, water absorption rate decline, but 28 days resistance to compression and flexural strength and 3 difference of comparative example it is little.It can be seen that living
The dosage of property admixture and antimitotic agent is for the dry density of building block, fire endurance, heat resistance, sound insulation value, air shrinkage value, surface shape
State and water absorption rate are affected, and resistance to compression in 28 days of building block and flexural strength are influenced little.
To sum up, the raw material type and its proportion that the present invention uses are scientific and reasonable, have collaboration between each raw material and its content
Effect, and preparation process proposed by the present invention is combined, the block that performance indexes is substantially better than traditional building block has been prepared
Block product has good economic development prospect.
The lazy of reasonable volume is added using portland cement, active blend as primary raw material in building block provided by the invention
Property admixture, swelling agent, antimitotic agent, chemical admixture, foaming agent, added water and stirred, moulding by casting, demoulding maintenance obtain building block
Product, the building block product have an advantage that compared to traditional steam pressurized coagulation scholar building block
Environmental protection, energy conservation, safety.Without traditional autoclave curing, cancel boiler, still kettle, reduces fuel consumption, carbon
The security risk of discharge and running special equipment.
Cooperation precision, saves cost at bright and clean smooth, high-efficiency high-quality.The tongue-and-groove of moulding by casting, size is accurate, utilizes 3-5mm
Thin layer mortar, building block cooperation can be allowed accurate, reduce the workload of unwrapping wire positioning, convenient and efficient of constructing, compared to traditional
Steam pressurized coagulation scholar building block builds efficiency and improves 30% or more.Wall is bright and clean smooth, and metope is not necessarily to two-sided plastering, can scrape
Putty, swabbing, wallpaper or viscous tapestry brick can greatly save artificial and material cost, and avoid traditional coat of plaster and open
It splits, the quality problems that hollowing even falls off.
Intensity height, volume stability.28 days resistance to compressions, flexural strengths of building block produced by the present invention respectively more than 10MPa,
3MPa, breaking load are greater than 300 ㎏, and anti-impact force is strong, reduce in the easy losing fangle of handling process, damaged problem.Also,
The hanging of its single-point up to 40 ㎏ or more, can on metope carry hanging cupboard, TV, kitchen and toilet facility and other items, increase floor space
Utilization rate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of building block, which is characterized in that be prepared by following components in percentage by weight:
Portland cement 29.02 ~ 35%, active blend 35 ~ 40%, inert filler 6 ~ 8%, swelling agent 2 ~ 4%, antimitotic agent 0.8 ~
1.2%, chemical admixture 0.2 ~ 0.5%, foaming agent 0.08 ~ 0.1% and water 20 ~ 22.4%.
2. building block as described in claim 1, which is characterized in that be prepared by following components in percentage by weight:
Portland cement 29.64%, active blend 37.04%, inert filler 7.41%, swelling agent 2.29%, antimitotic agent
0.91%, chemical admixture 0.31%, foaming agent 0.09% and water 22.31%.
3. building block as claimed in claim 1 or 2, which is characterized in that the active blend is the mixed of flyash and slag powders
Close object.
4. building block as claimed in claim 1 or 2, which is characterized in that the inert filler is ceramic polished powder.
5. building block as claimed in claim 1 or 2, which is characterized in that the swelling agent is anhydrous gypsum.
6. building block as claimed in claim 1 or 2, which is characterized in that the antimitotic agent is alkaline-resisting monofilament short glass fiber or gathers
Propylene staple fiber.
7. building block as claimed in claim 1 or 2, which is characterized in that the chemical admixture is high performance water reducing agent of polyocarboxy acid.
8. building block as claimed in claim 1 or 2, which is characterized in that the foaming agent is composite type animal protein foaming agent.
9. a kind of preparation method of the building block as described in claim 1 ~ 8 any one, which comprises the steps of:
Each raw material is weighed according to the building block formula as described in claim 1 ~ 8 any one, it is spare；
Portland cement, active blend, inert filler and swelling agent are added in level-one blender and stirred 30 ~ 60 seconds, then
Chemical admixture and water is added, stirs 2 ~ 5 minutes, obtains level-one stirring mixture；
Level-one stirring mixture is transferred in secondary blender, antimitotic agent is added and stirs 1 ~ 2 minute, obtains second level and stirs
Mix mixture；
It after foam is made in the foaming agent, is added in the second level stirring mixture, stirs 2 ~ 5 minutes, obtain to be cast mixed
Close object；
The mixture to be cast is poured into mold, it is quiet to stop conserving, obtain building block；
When detecting compression strength >=0.5MPA of the building block, the building block is squeezed to abjection from the mold, carried out
Late maintaining is detected and is packed after the building block reaches preset factory intensity.
10. the preparation method of building block as claimed in claim 9, which is characterized in that described when the resistance to compression for detecting the building block
When intensity >=0.5MPA, the step of the building block to be squeezed to abjection from the mold, carries out late maintaining, specifically include:
When detecting compression strength >=0.5MPA of the building block, the building block is squeezed to deviate from from the mold and is placed
In the mist room of constant temperature and humidity, late maintaining is carried out.
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| CN201910389477.6A CN110066155A (en) | 2019-05-08 | 2019-05-08 | A kind of building block and preparation method thereof |
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| CN103524091A (en) * | 2012-07-06 | 2014-01-22 | 北京建筑技术发展有限责任公司 | Preparation method of large-mixing-amount fly ash non-autoclaved ultra-light foamed concrete |
| CN105174854A (en) * | 2015-08-14 | 2015-12-23 | 黄贺明 | Powder concrete with ceramic polishing powder |
| CN105541386A (en) * | 2016-01-13 | 2016-05-04 | 王湖彬 | Concrete air-added heat preservation brick and preparation method thereof |
| PL415123A1 (en) * | 2015-12-04 | 2016-07-18 | Politechnika Wrocławska | Composite cement-fibrous material with addition of perlite dust and its applications |
| CN106588115A (en) * | 2016-12-20 | 2017-04-26 | 天津盛易联科技股份有限公司 | Environment-friendly foam concrete for building decoration engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524091A (en) * | 2012-07-06 | 2014-01-22 | 北京建筑技术发展有限责任公司 | Preparation method of large-mixing-amount fly ash non-autoclaved ultra-light foamed concrete |
| CN105174854A (en) * | 2015-08-14 | 2015-12-23 | 黄贺明 | Powder concrete with ceramic polishing powder |
| PL415123A1 (en) * | 2015-12-04 | 2016-07-18 | Politechnika Wrocławska | Composite cement-fibrous material with addition of perlite dust and its applications |
| CN105541386A (en) * | 2016-01-13 | 2016-05-04 | 王湖彬 | Concrete air-added heat preservation brick and preparation method thereof |
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