CN109987885A - The cementing building block of SFC and its manufacturing method - Google Patents
The cementing building block of SFC and its manufacturing method Download PDFInfo
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- CN109987885A CN109987885A CN201811609672.7A CN201811609672A CN109987885A CN 109987885 A CN109987885 A CN 109987885A CN 201811609672 A CN201811609672 A CN 201811609672A CN 109987885 A CN109987885 A CN 109987885A
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- building block
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- powder
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000000428 dust Substances 0.000 claims abstract description 20
- 239000004615 ingredient Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000000470 constituent Substances 0.000 claims description 33
- 239000004568 cement Substances 0.000 claims description 23
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- 239000011449 brick Substances 0.000 abstract description 16
- 239000006227 byproduct Substances 0.000 abstract description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 6
- 239000002956 ash Substances 0.000 description 19
- 230000009102 absorption Effects 0.000 description 16
- 239000003292 glue Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 238000004080 punching Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 238000007792 addition Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002006 petroleum coke Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000002802 bituminous coal Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010754 BS 2869 Class F Substances 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The present invention provides a kind of cementing building block of SFC and its manufacturing method, can effectively reduce tradition and bakes bricks caused carbon dioxide, and three kinds of industrial by-products such as F grade flying dusts, hearthstone powder and CFBC ash is allowed to recycle, and improves and a large amount of hoards problem.The cementing building block of SFC of the invention mainly contains following ingredients: hearthstone powder, F grade flying dust and CFBC ash.
Description
Technical field
It is anhydrous the present invention relates to a kind of cementing building block and its manufacturing method more particularly to a kind of cementing building block of SFC and with SFC
The manufacturing method of the cementing building block of SFC is made in earth rubber knot powder.
Background technique
Circulating fluidized bed combustion technology (Circulating Fluidized Bed Combustion Technology,
CFBC) excessive oxysulfide is generated because burning high sulfur content petroleum coke to reduce for a kind of burning petroleum coke and addition lime stone
The desulfurization of discharge manufactures generation technology, and generated powdery industry byproduct is CFBC ash, and particle is tiny and has high gypsum
Content.
There are about 800,000 tonnes for the annual output of CFBC by-product lime, thus cause largely to hoard problem.Past studies have shown that
CFBC by-product lime can excite pozolana (Pozzolanic) material (such as hearthstone powder) and generate intensity via hydration reaction, but
It is bad that addition CFBC by-product lime often faces volume expansion (entringite excessive), setting time long (gypsum slow setting), durability
The problems such as.
Summary of the invention
In view of this, the present invention adds F grades of flying dusts in the mixture of CFBC by-product lime and hearthstone powder for the first time, design is not
SFC with proportion adds water to mix and stir and the cementing building block of novel SFC is made without cementing powder, and F grades of flying dusts of addition can effectively reduce
The cementing building block water absorption rate of SFC promotes compression strength, promotes chemical resistance of concrete ability, promote durability, promote dimensional stability,
Compared to past result of study, the novel cementing building block of SFC has obvious preferable engineering properties, is effectively reduced caused by tradition bakes bricks
Carbon dioxide, and three kinds of industrial by-products such as F grades of flying dusts, hearthstone powder and CFBC ash is allowed to recycle, improves largely to hoard and ask
Topic.The present invention and then the SFC pressurization glue that the cementing building block constituent pressurization of not yet condensation SFC of different ratio is made to varying strength
Tie building block, and the cementing building block of SFC made by the present invention according to CNS 382 except level-one brick can be classified as, as brick materials'use
Outside, it also is suitable as being used in the construction material of other purposes.
The cementing building block of SFC of the invention mainly contains: without the cementing powder of cement SFC and water.Wherein, no cement SFC glue
Knot powder mainly contains: hearthstone powder, F grade flying dust and CFBC ash.
In one embodiment of this invention, the above-mentioned no cementing powder of cement SFC is by hearthstone powder, F grades of flying dusts and CFBC
Ash composition.
In one embodiment of this invention, the total weight based on the above-mentioned no cementing powder of cement SFC is 100 weight %,
The content of above-mentioned hearthstone powder is 45 weight % to 70 weight %；The content of above-mentioned F grade flying dust is 10 weight % to 30 weights
Measure %；The content of above-mentioned CFBC ash is 15 weight % to 25 weight %.
In one embodiment of this invention, the density range of the cementing building block of above-mentioned SFC is 1.5g/cm3To 1.9g/cm3。
In one embodiment of this invention, the compression strength of the cementing building block of above-mentioned SFC and the relationship of density meet following
Formula (1):
Y=a (74.25X-103.21) formula (1)
In formula (1), X is the density (g/cm of the cementing building block of SFC3)；Y is the compression strength (MPa) of the cementing building block of SFC；A table
Show the constant between 0.9 to 1.1.
In one embodiment of this invention, under the relationship between the water absorption rate and density of the cementing building block of above-mentioned SFC meets
State formula (2):
Z=a (- 28.41X+61.01) formula (2)
In formula (2), X is the density (g/cm of the cementing building block of SFC3)；Z is the water absorption rate (%) of the cementing building block of SFC；A is indicated
Constant between 0.9 to 1.1.
The present invention separately provides a kind of manufacturing method of cementing building block of SFC, the manufacture such as above-mentioned cementing building block of SFC, including under
Column step:
Mixing step suitably adds water and stirs SFC without cementing powder, to form the cementing building block group of SFC not yet condensed
At object；And
The cementing building block constituent of the SFC not yet condensed is placed in mold by pressurization steps, and to the SFC glue not yet condensed
It ties building block constituent and applies pressure, the cementing building block of SFC pressurization of varying strength is made.
The present invention separately provides a kind of manufacturing method of cementing building block of SFC, the manufacture such as above-mentioned cementing building block of SFC, including under
Column step:
Mixing step suitably adds water and stirs SFC without cementing powder, to form the cementing building block group of SFC not yet condensed
At object；And
Consolidate step firmly, the cementing building block constituent of the SFC not yet condensed is placed in mold, keeps the SFC not yet condensed cementing
Building block constituent is firmly solid, the hard solid glue knot building block of the SFC varying strength is made.
In one embodiment of this invention, it in the manufacturing method of the cementing building block of above-mentioned SFC, is not necessary to the cementing building block of SFC
Constituent carries out the step of heat-agglomerating.
There is excellent engineering properties based on above-mentioned, the of the invention cementing building block of SFC, there is the energy as novel green building materials
Power.Therefore when SFC cementing building block is made without cementing powder in SFC, bake bricks compared to tradition, for cement brickmaking, Ke Yi great
Amount reduces carbon dioxide and generates, and increases the application range of CFBC by-product lime.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate appended attached drawing
It is described in detail below.
Detailed description of the invention
Fig. 1 is the side view of mold used in the manufacturing method of the cementing building block of SFC of this case.
Fig. 2 is the compression strength of the cementing building block of SFC of this case and the relational graph of density.
Fig. 3 is the density of the cementing building block of SFC of this case and the relational graph of water absorption rate.
[symbol description]
The cementing building block constituent of 1:SFC
10: punching block
12: groove
14: fixator
20: convex block
30: lower plate
40: upper plate
50: pillar
52: hydraulic spring
100: mold
D: volume under pressure
Specific embodiment
<ingredient of the cementing building block of SFC>
The cementing building block of SFC of the invention mainly contains: without the cementing powder of cement SFC and water.It is above-mentioned without cement SFC glue
Knot powder mainly contains: hearthstone powder, F grade flying dust and CFBC ash.The cementing building block of SFC of the invention can also be optionally added into other
Additive component preferably only contains hearthstone without the cementing powder of cement SFC from the perspective of the recycling to industrial by-products
Three kinds of industrial by-product powders such as powder, F grade flying dust and CFBC ash, and add water and stir and form the cementing building block constituent of SFC.Below
Each ingredient of no cementing powder of cement SFC is illustrated.
Hearthstone powder
Hearthstone powder (slag) is the by-product of one-stop operation steel-refining Shi Suosheng, wherein (the SiO containing silica2), oxidation
Aluminium (Al2O3) and iron oxide (Fe2O3) etc. ingredients.Clinker is discharged by blast furnace cools down resulting solids, referred to as high hearthstone, according to
The difference of its type of cooling can be divided into two kinds of hearthstone of water quenching hearthstone and air cooling.Water quenching hearthstone is blast furnace cinder with spray mode urgency
Quickly cooling but, makes clinker fragmentation granulate, and since cooling time is excessively very brief, crystal is not easy to be formed and the in disorder opening of micro-structure, therefore
Its activity is big and has cementing properties, as long as hearthstone powder is made in thin plus grinding, that is, may replace part of cement, also referred to as blast furnace clinker.Gas
Black furnace stone is it is firmer and fine and close to form construction, therefore its activity is bad and without cementing properties, can be used as concrete using slow cooling mode
Pellet or the raw material for manufacturing cement.
The hearthstone powder used in the cementing building block of SFC of the invention can for example be enumerated made of the grinding of above-mentioned water quenching oven stone
Hearthstone powder.
In the cementing building block of SFC of the invention, the total weight based on no cementing powder of cement SFC is 100 weight %, hearthstone
The content of powder is 45 weight % to 70 weight %；Preferably 60 weight % to 70 weight %.By the way that the content of hearthstone powder is set
For above range, the optimum engineering properties of the cementing building block of SFC can be obtained.
Flying dust
Flying dust (fly ash) is for thermal power plant fire coal through being received in smokejack gas with precipitator after burned
Collect and obtain, fire coal is melted through burning, and generating circle fine grained is in noncrystalline matter (Amorphous) or the nature of glass (Glassy)
Flying dust.
More specifically, flying dust is that the mixture of a kind of quartz and aluminate is divided into according to calcium oxide (CaO) content difference
Low calcium (F grades) flying dust and high calcium (C grades) flying dust.F grades of flying dusts itself do not have the hydrogen-oxygen generated when bond, flying dust and hydrated cementitious
After changing calcium effect, the calcium silicate hydrate of tool bond can produce.(the SiO containing silica in flying dust2), aluminium oxide (Al2O3)、
Iron oxide (Fe2O3) and calcium oxide (CaO), for partial size about between 0.4 μm~100 μm, specific gravity is 2.0~2.2.
Flying dust is a kind of pozolana material (Pozzolanic material), by constantly consuming hydrogen-oxygen soluble easily in water
Change calcium and pozolana reaction occurs, to generate hydrated calcium silicate, drated calcium aluminate or stratlingite.
C grades of flying dusts (Class C fly ash) are usually obtained by combusting brown coal or ub-bituminous coal, have pozolana characteristic also
With several cementing properties, the content of calcium oxide is typically larger than 15%, and total content of silica, aluminium oxide and iron oxide
Greater than 50%.On the other hand, F grades of flying dusts (Class F fly ash) are usually obtained by burning anthracite or bituminous coal, are only had
The content of pozolana characteristic, calcium oxide is less, and usually less than 10%, and silica, aluminium oxide and the total of iron oxide contain
Amount is greater than 70%.
The flying dust used in the cementing building block of SFC of the invention is F grades of flying dusts.
In the cementing building block of SFC of the invention, the total weight based on no cementing powder of cement SFC is 100 weight %, F grade
The content of flying dust is 10 weight % to 30 weight %；Preferably 15 weight % to 20 weight %.By the way that the content of F grades of flying dusts is set
It is set to above range, the optimum engineering properties of the cementing building block of SFC can be obtained.
CFBC ash
CFBC ash (CFBC fly ash) is the by-product after being generated electricity by circulating fluidized bed combustion technology burning petroleum coke
Product.CFBC ash is shaggy polygonal particle, and main component is calcium sulfate (CaSO4) and calcium oxide (CaO).Generally
For, CFBC ash is not pozolana material, but CFBC ash has high alkalinity, therefore the pozolanas material such as can excite hearthstone powder is potential
Cementing properties.If replacing filler material to help to reduce water absorption rate, increase compression strength and promote sulfate resistance ability using CFBC ash.
On the other hand, it if replacing cementitious matter that can also promote sulfate resistance ability using CFBC ash, reduces water absorption rate and promotes compression strength.
If but substitution amount it is excessive when, it is also possible to influence the engineering properties of the cementing building block of SFC.
In the cementing building block of SFC of the invention, the total weight based on no cementing powder of cement SFC is 100 weight %, CFBC
The content of ash is 15 weight % to 25 weight %；Preferably 15 weight % to 20 weight %.By the way that the content of CFBC ash is set
For above range, the optimum engineering properties of the cementing building block of SFC can be obtained.
Other additive components
In the cementing building block of SFC of the invention, under the premise of not influencing effect of the invention, other additions can also be added
Agent ingredient.
Additive component can for example be enumerated: stone grain, sand grains, steel slag, regenerative granular material etc..
In the cementing building block of SFC of the invention, the content of other additive components can be according to different demands and elasticity adjustment is used
Amount.
<property of the cementing building block of SFC>
The cementing building block of SFC of the invention is not necessary to by heat-agglomerating.More specifically, the cementing building block of SFC of the invention is
Add water to mix and stir without cementing powder by the SFC of each ingredient comprising the above-mentioned cementing building block of SFC, and and it is made firmly solid
The hard solid glue knot building block of SFC；Varying strength can also be made by pressurization protocols in the cementing building block constituent of the SFC not yet condensed
The cementing building block of SFC pressurization.Therefore, for compared to conventional clay sintering common brick, cement brickmaking, carbon dioxide can be largely reduced
Generation.
There is no particular restriction for the mode pressurizeed to the cementing building block constituent of the SFC not yet condensed, such as can will not yet
The cementing building block constituent of the SFC of condensation is placed in mold, and the SFC not yet condensed cementing building block composition is made and to mould pressurizing
Object forms the cementing building block of SFC pressurization.
The density range of the cementing building block of SFC of the invention is 1.5g/cm3To 1.9g/cm3, can be according to different compression strength
Its relative density is selected, but advantages of higher compressive strength can be obtained and compared with properties such as low water absorptions in the cementing building block of SFC of higher density.
More specifically, by adjusting the density of the cementing building block of SFC, the pressure resistance of the cementing building block of SFC can also further be made
The properties such as degree and water absorption rate reach engine request.
In general, the pressurize density of cementing building block of the SFC after pressurization is therefore the main factor for influencing intensity passes through
The pressurize density of cementing building block of adjustment SFC can be designed the cementing building blocks of SFC of different grade of compressive strength.
More specifically, the density of the cementing building block of SFC of the invention and the relativeness of compression strength meet following formula
(1):
Y=a (74.25X-103.21) formula (1)
In formula (1), X is the density (g/cm of the cementing building block of SFC3)；Y is the compression strength (MPa) of the cementing building block of SFC；A table
Show the constant between 0.9 to 1.1.
In addition, the density of the cementing building block of SFC of the invention and the relativeness of water absorption rate meet following formula (2):
Z=a (- 28.41X+61.01) formula (2)
In formula (2), X is the density (g/cm of the cementing building block of SFC3)；Z is the water absorption rate (%) of the cementing building block of SFC；A is indicated
Constant between 0.9 to 1.1.
Please refer to Fig. 2, Fig. 3, when the density of the cementing building block of SFC and the relativeness of compression strength of the invention meet it is above-mentioned
When formula (1) or density and the relativeness of water absorption rate meet above-mentioned formula (2), that is, fall into this case Fig. 2, trend illustrated in fig. 3
Positive and negative 10% range of line.The cementing building block of SFC for falling into above range has excellent engineering properties, has and green builds as novel
The ability of material meets prediction of strength trend.
<manufacturing method of the cementing building block of SFC>
The cementing building block of SFC of the invention can be divided into the cementing building block of SFC pressurization and the hard solid glue of SFC according to its preparation method difference
Two kinds of building block of knot.
The pressurize manufacturing method of cementing building block of SFC of the invention includes the following steps:
Mixing step suitably adds water and stirs SFC and forms the cementing brick block composition of the SFC not yet condensed without cementing powder
Object；And
The cementing building block constituent of the SFC not yet condensed is placed in mold by pressurization steps, and to the SFC glue not yet condensed
It ties building block constituent and applies pressure, the cementing building block of SFC pressurization is made.
The manufacturing method of the hard solid glue knot building block of SFC of the invention includes the following steps:
Mixing step suitably adds water and stirs SFC and forms the cementing brick block composition of the SFC not yet condensed without cementing powder
Object；And
Consolidate step firmly, the cementing building block constituent of the SFC not yet condensed is placed in mold, keeps the SFC not yet condensed cementing
Building block constituent is firmly solid, the hard solid glue knot building block of SFC is made.
In mixing step, each ingredient (i.e. aforementioned SFC cementing block of the above-mentioned SFC without cementing powder is weighed first
Each ingredient of block) institute's expense, and stir to integrally up to until single uniform color.
Then according to American Society for Testing Materials (American Society for Testing and Materials,
ASTM) the standardization program that C305 is stood surely is added the uniform stirring mixing that water carries out 4 to 5 minutes, is not yet condensed with formation
The cementing building block constituent of SFC.
In pressurization steps, as shown in Figure 1, the cementing building block constituent 1 of the SFC not yet condensed is placed in mold 100, mould
Tool 100 includes punching block 10, convex block 20, lower plate 30, upper plate 40 and multiple pillars 50.Punching block 10, which has, disposable not yet to be condensed
The groove 12 of the cementing building block constituent 1 of SFC, and there is no particular restriction for the shape of groove 12, as long as the shape and convex block of groove 12
20 are substantially the same so that convex block 20 can the cementing building block constituent 1 of SFC to the groove 12 for being placed in punching block 10 carry out
Pressurization.
Punching block 10 is fixed in lower plate 30 with fixator 14, and convex block 20 is set on upper plate 40.Lower plate 30 and upper plate 40 it
Between with multiple pillars 50 connection, be arranged oppositely punching block 10 with convex block 20.Each pillar 50 is separately positioned on hydraulic spring 52
Centre makes each pillar 50 extend through a hydraulic spring 52, by the setting of hydraulic spring 52, can be easier to control
The volume under pressure D of plate 40, and then the SFC that setting can be more easily achieved pressurizes the density of cementing building block.
Pressurization steps can carry out under any temperature environment, such as room temperature environment, more specific temperature range be 23 DEG C~
27℃。
In addition, when carrying out pressurization steps, the weight of the cementing building block constituent 1 of the SFC not yet condensed due to being placed in mold 100
As long as amount be it is known that therefore the SFC after control pressurization pressurizes the volume of cementing building block, can SFC pressurization after apparent pressurization
The density of cementing building block.For control moulding pressure, the volume under pressure D of the upper plate 40 in mold 100 is controlled more
It is easy to reach the density of needs.Furthermore preferably mold 100 can be controlled by servo-system (servo system).In this way, can be more
Quickly and easily carry out pressurization steps.
Firmly admittedly in step, as long as the cementing building block constituent of the SFC not yet condensed is placed in mold, make not yet to condense
The cementing building block constituent of SFC is firmly solid.As mold, such as the punching block 10 in mold 100 as shown in Figure 1 can be used.
It is worth noting that, the cementing building block manufacturing method of SFC of the invention includes by consolidating step firmly or passing through pressurization
The cementing building block of SFC is made in step, therefore, without the step of carrying out heat-agglomerating.Therefore SFC is made in the cementing building block constituent of SFC
When cementing building block, for being sintered common brick, cement brickmaking compared to the viscous scholar of tradition, the generation of carbon dioxide can be largely reduced.
To enable those skilled in the art to further appreciate that, embodiments of the present invention, the present invention will be with regard to following embodiments
To be described further.However, it should be noted that the embodiments such as this are only to illustrate, and be not necessarily to be construed as what the present invention was implemented
Limitation.
<embodiment>
The embodiment of the cementing building block of SFC
[embodiment]
Specific gravity 1.9g/cm is made3, long 23cm, width 11cm, high 6cm standard brick for, firstly, weighing hearthstone respectively
Powder 1562.0g (65.0 weight %), F grades of flying dust 360.5g (15.0 weight %) and CFBC ash 480.6g (20.0 weight %),
Until being evenly stirred until that mixture reaches single uniform color in mortar.Then, the pure water of 481.0g is added, and according to ASTM
The standard that C305 is stood surely mixes and stirs program, and water is added and be stirred within 4 to 5 minutes, the cementing block of the SFC to form embodiment
Block constituent.Above-mentioned hearthstone powder, F grades of flying dusts and CFBC ash composition composition are as shown in table 1 below.
Then, the cementing building block constituent of the SFC of embodiment is placed in the mold 100 such as Fig. 1, herein the groove of punching block 10
12 be cuboid-type, and inside dimension is long 23cm, width 11cm, high 6cm, so that forming the cementing building block of SFC becomes long 23cm, width
The mode of the size of 11cm, high 6cm pressurizes to the cementing building block constituent of SFC, the cementing building block of the SFC to obtain embodiment.
The compression strength of the cementing building block of the SFC of embodiment is 41.65MPa, water absorption rate 7.74%, and building block finished product is classified as level-one brick.
[comparative example]
The manufacturing method of the cementing building block of the SFC of comparative example is identical as embodiment, is different in: changing the use of each ingredient
Amount is hearthstone powder 384.5g (16.0 weight %), F grades of flying dust 1538.0g (64.0 weight %) and CFBC ash 480.6g (20.0
Weight %).The compression strength of the cementing building block of the SFC of comparative example is 21.96MPa, water absorption rate 16.37%, is inferior to three-level brick
Building block finished product grade scale.
[table 1]
Evaluation method
1. water absorption rate
It is tested according to ASTM-C642, ASTM-C1585
2. compression strength
It is tested according to ASTM-C109, CNS 382
3. building block finished product is classified
It is classified according to CNS 382, classification results are as shown in table 2 below:
[table 2]
| Level-one brick | Seconds | Three-level brick | |
| Water absorption rate (%) | 10 or less | 13 or less | 15 or less |
| Compression strength (MPa) | 30 or more | 20 or more | 15 or more |
As can be seen from the above embodiments, the embodiment for meeting the cementing building block of SFC of the invention, for comparative example,
Water absorption rate is low and compression strength is high, therefore is classified as level-one brick according to CNS 382, can be used as construction materials'use.
In conclusion the cementing building block of SFC of the invention has excellent engineering properties, there is the energy as novel green building materials
Power.Therefore when SFC cementing building block is made without cementing powder in SFC, bake bricks compared to tradition, for cement brickmaking, Ke Yi great
Amount reduces carbon dioxide and generates, and increases the application range of CFBC by-product lime.
Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any technical field
In technical staff, without departing from the spirit and scope of the present invention, when can make a little change and retouching, therefore guarantor of the invention
Subject to shield range ought be defined depending on claim.
Claims (10)
1. a kind of cementing building block of SFC, mainly contains following ingredients:
Without the cementing powder of cement SFC；And
Water, wherein
The no cementing powder of cement SFC mainly contains:
Hearthstone powder；
F grades of flying dusts；And
CFBC ash.
2. the cementing building block of SFC according to claim 1, wherein
The no cementing powder of cement SFC is made of the hearthstone powder, the F grades of flying dust and the CFBC ash.
3. the cementing building block of SFC according to claim 1, wherein
Total weight based on the no cementing powder of cement SFC is 100 weight %,
The content of the hearthstone powder is 45 weight % to 70 weight %；
The content of the F grades of flying dust is 10 weight % to 30 weight %；
The content of the CFBC ash is 15 weight % to 25 weight %.
4. the cementing building block of SFC according to claim 1, wherein the cementing building block of the SFC is without heat-agglomerating.
5. the cementing building block of SFC according to claim 1, wherein the density range of the cementing building block of the SFC is 1.5g/cm3Extremely
1.9g/cm3。
6. the cementing building block of SFC according to claim 1, wherein between the compression strength and density of the cementing building block of the SFC
Relationship meet following formula (1):
Y=a (74.25X-103.21) formula (1)
In formula (1), X is the density of the cementing building block of the SFC；Y is the compression strength of the cementing building block of the SFC；A indicate 0.9 to
Constant between 1.1.
7. the cementing building block of SFC according to claim 1, wherein between the water absorption rate and density of the cementing building block of the SFC
Relationship meets following formula (2):
Z=a (- 28.41X+61.01) formula (2)
In formula (2), X is the density of the cementing building block of the SFC；Z is the water absorption rate of the cementing building block of the SFC；A indicates 0.9 to 1.1
Between constant.
8. a kind of manufacturing method of the cementing building block of SFC manufactures the cementing building block of SFC as described in any one of claims 1 to 7,
Include the following steps:
Mixing step adds water and stirs no cementing powder of cement SFC, to form the cementing building block constituent of SFC；And
The cementing building block constituent of the SFC is placed in mold by pressurization steps, and is applied to the cementing building block constituent of the SFC
Pressure, the cementing building block of SFC is made.
9. a kind of manufacturing method of the cementing building block of SFC manufactures the cementing building block of SFC as described in any one of claims 1 to 7,
Include the following steps:
Mixing step adds water and stirs no cementing powder of cement SFC, to form the cementing building block constituent of SFC；And
Consolidate step firmly, the cementing building block constituent of the SFC is placed in mold, keeps the cementing building block constituent of the SFC firmly solid, with
The cementing building block of SFC is made.
10. the manufacturing method of the cementing building block of SFC according to claim 8 or claim 9, wherein not including to the cementing block of the SFC
Block constituent carries out the step of heat-agglomerating.
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| CN116986850A (en) * | 2023-06-08 | 2023-11-03 | 碳达(深圳)新材料技术有限责任公司 | Composite concrete and preparation method thereof |
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| TWI642644B (en) | 2018-12-01 |
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