CN102503527B - Yttrium-element autoclaved aerated concrete block and preparation method thereof - Google Patents
Yttrium-element autoclaved aerated concrete block and preparation method thereof Download PDFInfo
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- CN102503527B CN102503527B CN 201110337212 CN201110337212A CN102503527B CN 102503527 B CN102503527 B CN 102503527B CN 201110337212 CN201110337212 CN 201110337212 CN 201110337212 A CN201110337212 A CN 201110337212A CN 102503527 B CN102503527 B CN 102503527B
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Abstract
The invention discloses an yttrium-element autoclaved aerated concrete block and a preparation method thereof. The yttrium-element autoclaved aerated concrete block is divided into an yttrium-element sand aerated concrete block and an yttrium-element ash aerated concrete block and belongs to the field of building materials. The yttrium-element sand aerated concrete block is composed of the following raw materials by weight parts: 55-70 parts of sand, 0.03-0.06 parts of yttrium oxide, 23-28 parts of lime, 6-11 parts of cement, 2-6 parts of gypsum, 0.8-1.2 parts of aluminum powder and 2-7 parts of calcium-based bentonite. The yttrium-element ash aerated concrete block is composed of the following raw materials by weight parts: 60-70 parts of coal ash, 0.03-0.06 parts of yttrium oxide, 25-30 parts of lime, 6-8 parts of cement, 2-6 parts of gypsum, 0.8-1.2 parts of aluminum powder and 2-7 parts of calcium-based bentonite. Compared with the present autoclaved aerated concrete block, the yttrium-element autoclaved aerated concrete block has the advantages that the filling property is greatly promoted, namely, the compression strength is promoted.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of yttrium-element autoclaved aerated concrete block and preparation method thereof.
Background technology
According to existing novel wall material definition standard, the buildings such as concrete shear wall structure, frame construction, frame structure, all be listed in the novel wall material building, existing concrete is comprised of main raw material(s)s such as cement, sand, stones, has consumed in process of production a large amount of non-renewable resources limestones and clay and a large amount of high-quality energy such as coal as the cement of cementitious material; In concrete production, added again a large amount of limestone blocks, the economic worth of the two limestone resource that consumes will be much larger than the economic worth of the used clay resource of baking bricks; Moreover body of wall, framework substantially all are solid, concrete than great, consumption is many, has both wasted raw material, has increased again the loading of building, has strengthened based process and operating expenses, and the production cycle is long, sound insulation, heat resistance are also bad; Although existing steam-pressing aero-concrete has overcome above-mentioned shortcoming, its viscosity is high, and material is not easy evenly to be mixed.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of yttrium-element autoclaved aerated concrete block and preparation method thereof is provided, it has reduced the viscosity of building block, and various materials are mixed evenly, has improved full property, improves compression strength of building block.
Technical scheme of the present invention is as follows:
Yttrium-element autoclaved aerated concrete block is divided into two kinds of yttrium sand aerated concrete block and the building blocks of yttrium ash aerated concrete.
The yttrium sand aerated concrete block is comprised of following raw material, is by weight:
55～70 parts in sand, 0.03～0.06 part of yittrium oxide, 23～28 parts in lime, 6～11 parts of cement, 2～6 parts in gypsum, 0.8～1.2 part of aluminium powder, 2～7 parts of calcium-base bentonites.
Preferably, 62 parts in sand, 0.03 part of yittrium oxide, 25 parts in lime, 9 parts of cement, 4 parts in gypsum, 0.9 part of aluminium powder, 2 parts of calcium-base bentonites.
The building block of yttrium ash aerated concrete is comprised of following raw material, is by weight:
60～70 parts in flyash, 0.03～0.06 part of yittrium oxide, 25～30 parts in lime, 6～8 parts of cement, 2～6 parts in gypsum, 0.8～1.2 part of aluminium powder, 2～7 parts of calcium-base bentonites.
Preferably, 63 parts in flyash, 0.05 part of yittrium oxide, 26 parts in lime, 7 parts of cement, 4 parts in gypsum, 1 part of aluminium powder, 3.5 parts of calcium-base bentonites.
A kind of preparation method based on above-mentioned yttrium-element autoclaved aerated concrete block, adopt following steps:
(1), Raw material processing;
1. sand is machined to the 0.080mm square hole screen and passes through, screen over-size≤15% is stacked stand-by;
2. lime is machined to the 0.080mm square hole screen and passes through, screen over-size≤15%, and digestion rate (min) 5～15, the digestion temperature (℃) 60～90, slaking residue (%)≤10 not;
3. calcium-base bentonite is machined to by 300 mesh sieves, screen over-size≤1%;
4. yittrium oxide is commercial product, can directly use;
5. cement, gypsum (desulfurization), aluminium powder are buied direct use from the market;
(2), raw material is mixed;
Above-mentioned raw materials is made slip in stirring in the calculating ratio adding cast mixer;
(3), injection molding;
In the concrete slurry cast progressive die tool that contains rare earth element yttrium that stirs;
(4), precuring;
Through uniform temperature and the precuring of time, treat that idiosome reaches certain degree of hardness, can prepare cutting;
(5), upset;
Reversal hanger is done 90 degree upsets to mould aloft;
(6), the demoulding;
Reversal hanger uses stripper apparatus, is that mould separates with idiosome, and idiosome together with the side plate handling to Cutting dolly;
(7), vertically two sides cutting;
Cutting machine at first carries out perpendicular cuts to the idiosome two sides;
(8), vertically cutting;
Then idiosome is carried out the vertical equity cutting;
(9), transverse cuts;
At last idiosome is carried out horizontal perpendicular cuts;
(10), winch to steam-cured dolly;
The idiosome of well cutting is winched on the steam-cured dolly together with side plate by the semiproduct suspender;
(11), enter still;
Idiosome to well cutting is organized into groups, and enters still and treats steam-cured;
(12), steam-cured;
195 ℃ of uniform temperatures, under the pressure 1.2Mpa, idiosome is carried out 10～14 hours steam-cured;
(13), go out still;
Finished product after steam-cured goes out still;
(14), finished product hangs heap;
By the finished product suspender with the finished product stacking;
(15), packing, entrucking;
With entrucking behind the finished product packing;
(16), side plate returns;
Side plate returns through the side plate roller-way;
(17), with the empty mould restructuring of the demoulding;
Framed reconfiguring after side plate and the demoulding;
(18), cleaning, oil spout;
Mould and side plate that cleaning reconfigures are waited for cast next time.
The invention has the advantages that: 1, function admirable, light porous, thermal insulation, fireproof performance be good, can follow closely, can saw, can dig and possess certain shock resistance, the present invention utilizes solid waste coal ash, sand for primary raw material adds the New Building Materials that yittrium oxide is produced, and is the energy-conservation environmental protection and energy-saving building material more than 50% that at present only use yittrium oxide and calcium-base bentonite can reach national regulation; 2, use the yttrium-element autoclaved aerated concrete block comprehensive cost than adopting solid clay brick to reduce more than 5%, and can increase usable floor area, greatly improve the building area utilization rate, and has very strong workability, constructability, for protecting farmland, country has put into effect and has forbidden policy of producing clay solid brick in all parts of the country, and the cost of production of yttrium-element autoclaved aerated concrete block and quality all are better than clay solid brick greatly; 3, compare with existing Autoclaved aerated concrete blocks, its full property improves a lot, and compressive strength also improves a lot; 4, yttrium-element autoclaved aerated concrete block is a kind of concrete products with polymolecularity loose structure, and overall porosity can reach 70～85%, and aperture surface area is about 40～50m
2/ kg is widely used in industry and interior exterior wall and the roofing of civilian construction, can cut with cast-in-place, framework, frame, the multiple architecture structure form such as steel work is combined with.
Description of drawings Fig. 1 is production technological process of the present invention.
The invention will be further described below in conjunction with accompanying drawing for the specific embodiment.
Embodiment 1 yttrium sand aerated concrete block is comprised of following raw material, is by weight:
55 parts in sand, 0.03 part of yittrium oxide, 28 parts in lime, 11 parts of cement, 2 parts in gypsum, 0.8 part of aluminium powder, 2 parts of calcium-base bentonites.
Its preparation method is as shown in Figure 1:
(1), Raw material processing;
1. sand is machined to the 0.080mm square hole screen and passes through, screen over-size≤15% is stacked stand-by;
2. lime is machined to the 0.080mm square hole screen and passes through, screen over-size≤15%, and digestion rate (min) 5～15, the digestion temperature (℃) 60～90, slaking residue (%)≤10 not;
3. calcium-base bentonite is machined to by 300 mesh sieves, screen over-size≤1%;
4. yittrium oxide is commercial product, can directly use;
5. cement, gypsum (desulfurization), aluminium powder are buied direct use from the market;
(2), raw material is mixed;
Above-mentioned raw materials is made slip in stirring in the calculating ratio adding cast mixer;
(3), injection molding;
In the concrete slurry cast progressive die tool that contains rare earth element yttrium that stirs;
(4), precuring;
Through uniform temperature and the precuring of time, treat that idiosome reaches certain degree of hardness, can prepare cutting;
(5), upset;
Reversal hanger is done 90 degree upsets to mould aloft;
(6), the demoulding;
Reversal hanger uses stripper apparatus, is that mould separates with idiosome, and idiosome together with the side plate handling to Cutting dolly;
(7), vertically two sides cutting;
Cutting machine at first carries out perpendicular cuts to the idiosome two sides;
(8), vertically cutting;
Then idiosome is carried out the vertical equity cutting;
(9), transverse cuts;
At last idiosome is carried out horizontal perpendicular cuts;
(10), winch to steam-cured dolly;
The idiosome of well cutting is winched on the steam-cured dolly together with side plate by the semiproduct suspender;
(11), enter still;
Idiosome to well cutting is organized into groups, and enters still and treats steam-cured;
(12), steam-cured;
195 ℃ of uniform temperatures, under the pressure 1.2Mpa, idiosome is carried out 10～14 hours steam-cured;
(13), go out still;
Finished product after steam-cured goes out still;
(14), finished product hangs heap;
By the finished product suspender with the finished product stacking;
(15), packing, entrucking;
With entrucking behind the finished product packing;
(16), side plate returns;
Side plate returns through the side plate roller-way;
(17), with the empty mould restructuring of the demoulding;
Framed reconfiguring after side plate and the demoulding;
(18), cleaning, oil spout;
Mould and side plate that cleaning reconfigures are waited for cast next time.
This product after testing, its compressive strength average is 5.3MPa, is 1.5 times of " steam pressurization concrete block " GB11968-2006 standard, single group minimum value is 4.8MPa, is 1.7 times of above-mentioned standard.
Embodiment 2 yttrium sand aerated concrete blocks are comprised of following raw material, are by weight:
70 parts in sand, 0.06 part of yittrium oxide, 23 parts in lime, 6 parts of cement, 6 parts in gypsum, 1.2 parts of aluminium powders, 7 parts of calcium-base bentonites.
Its preparation method is with embodiment 1.
This product after testing, its compressive strength average is 5.0MPa, is 1.4 times of " steam pressurization concrete block " GB11968-2006 standard, single group minimum value is 4.6MPa, is 1.6 times of above-mentioned standard.
Embodiment 3 yttrium sand aerated concrete blocks are comprised of following raw material, are by weight:
62 parts in sand, 0.03 part of yittrium oxide, 25 parts in lime, 9 parts of cement, 4 parts in gypsum, 0.9 part of aluminium powder, 2 parts of calcium-base bentonites.
Its preparation method is with embodiment 1.
This product after testing, its compressive strength average is 5.6MPa, is 1.6 times of " steam pressurization concrete block " GB11968-2006 standard, single group minimum value is 5.2MPa, is 1.5 times of above-mentioned standard.
Embodiment 4 yttrium ash aerated concrete building blocks are comprised of following raw material, are by weight:
60 parts in flyash, 0.03 part of yittrium oxide, 25 parts in lime, 8 parts of cement, 6 parts in gypsum, 1.2 parts of aluminium powders, 2 parts of calcium-base bentonites.
Its preparation method is with embodiment 1.
This product after testing, its compressive strength average is 4.5MPa, is 1.3 times of " steam pressurization concrete block " GB11968-2006 standard, single group minimum value is 4.1MPa, is 1.5 times of above-mentioned standard.
Embodiment 5 yttrium ash aerated concrete building blocks are comprised of following raw material, are by weight:
70 parts in flyash, 0.06 part of yittrium oxide, 30 parts in lime, 6 parts of cement, 2 parts in gypsum, 0.8 part of aluminium powder, 7 parts of calcium-base bentonites.
Its preparation method is with embodiment 1.
This product after testing, its compressive strength average is 4.7MPa, is 1.3 times of " steam pressurization concrete block " GB11968-2006 standard, single group minimum value is 4.2MPa, is 1.5 times of above-mentioned standard.
Embodiment 6 yttrium ash aerated concrete building blocks are comprised of following raw material, are by weight:
63 parts in flyash, 0.05 part of yittrium oxide, 26 parts in lime, 7 parts of cement, 4 parts in gypsum, 1 part of aluminium powder, 3.5 parts of calcium-base bentonites.
Its preparation method is with embodiment 1.
This product after testing, its compressive strength average is 5.1MPa, is 1.5 times of " steam pressurization concrete block " GB11968-2006 standard, single group minimum value is 4.8MPa, is 1.7 times of above-mentioned standard.
The used property of raw material of the present invention is as follows:
Said sand derives from muddy Starch 1500 gram Chifeng City, desert Wengniute Banner section, and its Main Function in product is aggregate, and its main component by weight calculating is: Sio
2〉=75%, K
2O+Na
2O≤3.0%, Cl-≤0.03%, mica≤0.5%, SO
3≤ 1.0%, clay≤5.0%.
Said flyash derives from power plant, Chifeng City (firepower), and its Main Function in product is aggregate, and its main component by weight calculating is: loss on ignition≤5.0%, SiO
2〉=45%, SO
2≤ 1.0%, fineness (0.080mm square hole screen screen over-size)≤15%.
Said lime derives from enamelware pot ground, Kalaqin Banner, Chifeng City village Lime Factory, and its Main Function in product is dry, and its main component by weight calculating is: A (CaO+MgO) 〉=75%, MgO≤5%, SO
2≤ 5%, CO
2≤ 5%, digestion rate (min) 5～15, the digestion temperature (℃) 60～90, slaking residue (%)≤10 not, fineness (0.080mm square hole screen screen over-size)≤15%.
Said calcium-base bentonite derives from pool, sky, Ningcheng County, Chifeng City swell soil factory, and the factory site is positioned at busy rural area, Wu Hua town, Ningcheng County, Chifeng City, and its Main Function in product is adhesive, and its main component by weight calculating is: SiO
2〉=56.6%, AL
2O
3〉=13.8%, Fe
2O
3≤ 3.12%, MgO≤3.05%, Na
2O≤0.28%, CaO 〉=2.96%, K
2O≤0.68%, TiO
2≤ 0.46, P
2O
5≤ 0.07%, NaOH≤0.35%.
Said yttrium derives from Baotou rare earth academy the first Rare Earth Mine, and its Main Function in product is to reduce viscosity, and various materials are mixed evenly, improves full property.
Said aluminium powder derives from Chifeng City's goods and materials supply company, is aluminium powder commonly used, and its Main Function in product is aerogenesis.
Claims (5)
1. the yttrium sand aerated concrete block is characterized in that: be comprised of following raw material, be by weight: 55～70 parts in sand, 0.03～0.06 part of yittrium oxide, 23～28 parts in lime, 6～11 parts of cement, 2～6 parts in gypsum, 0.8～1.2 part of aluminium powder, 2～7 parts of calcium-base bentonites.
2. yttrium sand aerated concrete block as claimed in claim 1 is characterized in that: be comprised of following raw material, be by weight: 62 parts in sand, 0.03 part of yittrium oxide, 25 parts in lime, 9 parts of cement, 4 parts in gypsum, 0.9 part of aluminium powder, 2 parts of calcium-base bentonites.
3. the preparation method based on each described yttrium sand aerated concrete block among the claim 1-2 is characterized in that, adopts following steps:
A, Raw material processing;
1. sand is machined to the 0.080mm square hole screen and passes through, screen over-size≤15% is stacked stand-by;
2. lime is machined to the 0.080mm square hole screen and passes through, screen over-size≤15%, digestion rate 5～15min, 60～90 ℃ of digestion temperature, not slaking residue≤10%;
3. calcium-base bentonite is machined to by 300 mesh sieves, screen over-size≤1%;
4. yittrium oxide is commercial product, can directly use;
5. cement, desulfurated plaster, aluminium powder are buied direct use from the market;
B, raw material are mixed;
Above-mentioned raw materials is made slip in stirring in the calculating ratio adding cast mixer;
C, injection molding;
In the concrete slurry cast progressive die tool that contains rare earth element yttrium that stirs;
D, precuring;
Through uniform temperature and the precuring of time, treat that base substrate reaches certain degree of hardness, can prepare cutting;
E, upset;
Reversal hanger is done 90 degree upsets to mould aloft;
F, the demoulding;
Reversal hanger uses stripper apparatus, and mould is separated with base substrate, and base substrate together with the side plate handling to Cutting dolly;
G, vertically two sides cutting;
Cutting machine at first carries out perpendicular cuts to the base substrate two sides;
H, vertically cutting;
Then base substrate is carried out the vertical equity cutting;
I, transverse cuts;
At last base substrate is carried out horizontal perpendicular cuts;
J, winch to steam-cured dolly;
The base substrate of well cutting is winched on the steam-cured dolly together with side plate by the semiproduct suspender;
K, enter still;
Base substrate to well cutting is organized into groups, and enters still and treats steam-cured;
L, steam-cured;
195 ℃ of uniform temperatures, under the pressure 1.2MPa, base substrate is carried out 10～14 hours steam-cured;
M, go out still;
Finished product after steam-cured goes out still;
N, finished product hang heap;
By the finished product suspender with the finished product stacking;
O, packing, entrucking;
With entrucking behind the finished product packing;
P, side plate return;
Side plate returns through the side plate roller-way;
Q, with the empty mould restructuring of the demoulding;
Framed reconfiguring after side plate and the demoulding;
R, cleaning, oil spout.
4. yttrium ash aerated concrete building block is characterized in that: be comprised of following raw material, be by weight:
60～70 parts in flyash, 0.03～0.06 part of yittrium oxide, 25～30 parts in lime, 6～8 parts of cement, 2～6 parts in gypsum, 0.8～1.2 part of aluminium powder, 2～7 parts of calcium-base bentonites.
5. yttrium ash aerated concrete as claimed in claim 4 building block is characterized in that: be comprised of following raw material, be by weight: 63 parts in flyash, 0.05 part of yittrium oxide, 26 parts in lime, 7 parts of cement, 4 parts in gypsum, 1 part of aluminium powder, 3.5 parts of calcium-base bentonites.
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