CN105384462A - Sound-absorption anti-freezing autoclaved aerated concrete block and production method thereof - Google Patents
Sound-absorption anti-freezing autoclaved aerated concrete block and production method thereof Download PDFInfo
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- CN105384462A CN105384462A CN201510757291.3A CN201510757291A CN105384462A CN 105384462 A CN105384462 A CN 105384462A CN 201510757291 A CN201510757291 A CN 201510757291A CN 105384462 A CN105384462 A CN 105384462A
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- aerated concrete
- sound
- hour
- autoclaved aerated
- freezing
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- 239000004567 concrete Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 238000010521 absorption reaction Methods 0.000 title abstract 5
- 238000007710 freezing Methods 0.000 title abstract 5
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical group O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 11
- 239000011449 brick Substances 0.000 claims abstract description 10
- 229920000742 Cotton Polymers 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 7
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 6
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 6
- 239000006071 cream Substances 0.000 claims description 6
- 229910001649 dickite Inorganic materials 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 229920000084 Gum arabic Polymers 0.000 claims description 3
- 241000978776 Senegalia senegal Species 0.000 claims description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 239000000205 acacia gum Substances 0.000 claims description 3
- 235000010489 acacia gum Nutrition 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000004537 pulping Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 abstract description 2
- 239000001913 cellulose Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000002209 hydrophobic effect Effects 0.000 abstract description 2
- 238000002715 modification method Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000006640 acetylation reaction Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a sound-absorption anti-freezing autoclaved aerated concrete block. The sound-absorption anti-freezing autoclaved aerated concrete block has the beneficial effects that a preparation process is simple, and the raw materials are easily available; by carrying out acetylation reaction on waste cotton fiber, free hydroxide radicals in cellulose are closed, so that the hydrophobic property and the thermal stability of the material are improved; by adding other effective components by virtue of a physical modification method, the durability and the dispersibility of the fiber in autoclaved aerated concrete are improved; by adding waste brick chips and furfural residues, the problem of environmental pollution is solved, the production cost is lowered, and the subjects of energy conservation, environmental protection and waste recycle are achieved; meanwhile, by adding the other effective components, the autoclaved aerated concrete block has the characteristics of being capable of absorbing sound and resisting freezing, low in water absorption rate, good in abrasion resistance, and the like; the sound-absorption anti-freezing autoclaved aerated concrete block can be used in the cold weather for a long time, does not fracture and is durable.
Description
Technical field
The present invention relates to aerated-block technical field, be specifically related to freeze proof autoclave aerated concrete building block of a kind of sound-absorbing and preparation method thereof.
Background technology
As one of the important kind of novel wall material, autoclave aerated concrete building block has the many merits such as good effect of heat insulation, fire resistance are good, sound insulation, light weight, environmental protection compared with traditional clay vitrified brick.But, air-entrained concrete building block cubic deformation coefficient is bigger than normal, low strength, water-intake rate are large, and when building into body of wall by laying bricks or stones, easily there is crack in body of wall, coat of plaster easily produces big area be full of cracks, hollowing and obscission, show obvious fragility, hinder further application and the popularization of autoclave aerated concrete building block to a certain extent.Fiber is just widely used in traditional normal concrete goods as a kind of good cement matrix strongthener from 20th century, and its correlation theory have also been obtained comparatively sufficient and deep research.But because autoclave aerated concrete building block is in industrialization production process, general employing steel wire carries out excision forming to the gas concrete after initial set, mix too much fiber to affect to some extent the cutting of gas concrete, fiber effect in steam-pressing aero-concrete is made not to be remarkable especially, hinder its range of application in autoclave aerated concrete building block, also have a strong impact on the product quality and performances of autoclave aerated concrete building block.
Summary of the invention
Object of the present invention is just to provide freeze proof autoclave aerated concrete building block of a kind of sound-absorbing and preparation method thereof, to overcome the deficiencies in the prior art.
The object of the present invention is achieved like this:
The freeze proof autoclave aerated concrete building block of a kind of sound-absorbing, it is characterized in that, be made up of the raw material of following weight part: flyash 38-40, dickite 17-19, useless brick bits 20-22, furfural dregs 13-15, cement 5-7, aluminium powder cream 0.09-0.13, vinylbenzene 4.1-4.5, white oil 4-6, diacetyl oxide 55-57, silane resin acceptor kh-550 3-4, gum arabic powder 2-4, ammonium sulfate 0.4-0.6, waste cotton fiber 6-8, nylon fiber 7-9, suitable quantity of water.
The preparation method of the described freeze proof autoclave aerated concrete building block of a kind of sound-absorbing, is characterized in that comprising the following steps:
(1) waste cotton fiber is put into baking oven in 105 DEG C of dry 1-2 hour, put into retort with pre-steaming 20-40 minute simultaneously, add diacetyl oxide, ammonium sulfate stirring and evenly mixing leaves standstill 3-5 hour, then 100-140 DEG C of reaction 2-3 hour is heated to, dry to neutral with clear water rinsing, spray vaporific white oil dry;
(2) flyash, dickite, useless brick bits, furfural dregs 5-8% hydrochloric acid soln are soaked 3-4 hour, washing, to neutral, calcines 4-5 hour at 660-750 DEG C, is cooled to 120-130 DEG C and adds vinylbenzene grinding 30-50 minute;
(3) dropped in stirrer by step (2) material, add water stirring pulping, adds step (1) material, nylon fiber stirs 2min, add cement mixing 1min, then add aluminium powder cream and other remaining components and stir 30s and obtain slurry, and ratio of water to material is 0.53;
(4) slurry that step (3) is obtained is entered mould, leaving standstill gets angry just supports 2-4 hour, and excision exceeds mould part, and reactor is put in the demoulding, and control temperature 150-170 DEG C is carried out high-temperature steam curing 8-12 hour, discharging.
The present invention has following beneficial effect: preparation technology of the present invention is simple, raw material is easy to get, hydroxyl free in Mierocrystalline cellulose is enclosed by carrying out acetylization reaction to waste cotton fiber, improve hydrophobic performance and the thermostability of material, physical modification method is coordinated to add other effective constituent again, improve fiber weather resistance and dispersiveness in steam-pressing aero-concrete, the useless brick bits added, furfural dregs solves the problem of environmental pollution, reduce production cost, and realize energy-conserving and environment-protective, the theme of turning waste into wealth, add other effective constituents to make aerated-block of the present invention have sound-absorbing freeze proof simultaneously, water-intake rate is low, the features such as wear resistance is good, this product can in long term operation under severe cold condition, without be full of cracks, durable in use.
Embodiment
The described freeze proof autoclave aerated concrete building block of a kind of sound-absorbing, it is characterized in that, be made up of the raw material of following weight part: flyash 39, dickite 17, useless brick bits 20, furfural dregs 13, cement 7, aluminium powder cream 0.09, vinylbenzene 4.1, white oil 4, diacetyl oxide 56, silane resin acceptor kh-550 4, gum arabic powder 2, ammonium sulfate 0.4, waste cotton fiber 6, nylon fiber 9, suitable quantity of water.
Making method comprises the following steps:
(1) waste cotton fiber is put into baking oven in 105 DEG C of dry 1-2 hour, put into retort with pre-steaming 20-40 minute simultaneously, add diacetyl oxide, ammonium sulfate stirring and evenly mixing leaves standstill 3-5 hour, then 100-140 DEG C of reaction 2-3 hour is heated to, dry to neutral with clear water rinsing, spray vaporific white oil dry;
(2) flyash, dickite, useless brick bits, furfural dregs 5-8% hydrochloric acid soln are soaked 3-4 hour, washing, to neutral, calcines 4-5 hour at 660-750 DEG C, is cooled to 120-130 DEG C and adds vinylbenzene grinding 30-50 minute;
(3) dropped in stirrer by step (2) material, add water stirring pulping, adds step (1) material, nylon fiber stirs 2min, add cement mixing 1min, then add aluminium powder cream and other remaining components and stir 30s and obtain slurry, and ratio of water to material is 0.53;
(4) slurry that step (3) is obtained is entered mould, leaving standstill gets angry just supports 2-4 hour, and excision exceeds mould part, and reactor is put in the demoulding, and control temperature 150-170 DEG C is carried out high-temperature steam curing 8-12 hour, discharging.
The technical indicator of the autoclave aerated concrete building block that the present invention obtains is as follows:
(1) volume-weighted average is 580kg/m
3;
(2) thermal conductivity (W/mk): 0.095, has good thermal and insulating performance;
(3) ultimate compression strength: 7.5MPa;
(4) tensile splitting strength improves 17.5%.
Claims (2)
1. the freeze proof autoclave aerated concrete building block of sound-absorbing, it is characterized in that, be made up of the raw material of following weight part: flyash 38-40, dickite 17-19, useless brick bits 20-22, furfural dregs 13-15, cement 5-7, aluminium powder cream 0.09-0.13, vinylbenzene 4.1-4.5, white oil 4-6, diacetyl oxide 55-57, silane resin acceptor kh-550 3-4, gum arabic powder 2-4, ammonium sulfate 0.4-0.6, waste cotton fiber 6-8, nylon fiber 7-9, suitable quantity of water.
2. the making method of the freeze proof autoclave aerated concrete building block of a kind of sound-absorbing according to claim 1, is characterized in that comprising the following steps:
(1) waste cotton fiber is put into baking oven in 105 DEG C of dry 1-2 hour, put into retort with pre-steaming 20-40 minute simultaneously, add diacetyl oxide, ammonium sulfate stirring and evenly mixing leaves standstill 3-5 hour, then 100-140 DEG C of reaction 2-3 hour is heated to, dry to neutral with clear water rinsing, spray vaporific white oil dry;
(2) flyash, dickite, useless brick bits, furfural dregs 5-8% hydrochloric acid soln are soaked 3-4 hour, washing, to neutral, calcines 4-5 hour at 660-750 DEG C, is cooled to 120-130 DEG C and adds vinylbenzene grinding 30-50 minute;
(3) dropped in stirrer by step (2) material, add water stirring pulping, adds step (1) material, nylon fiber stirs 2min, add cement mixing 1min, then add aluminium powder cream and other remaining components and stir 30s and obtain slurry, and ratio of water to material is 0.53;
(4) slurry that step (3) is obtained is entered mould, leaving standstill gets angry just supports 2-4 hour, and excision exceeds mould part, and reactor is put in the demoulding, and control temperature 150-170 DEG C is carried out high-temperature steam curing 8-12 hour, discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757291.3A CN105384462A (en) | 2015-11-10 | 2015-11-10 | Sound-absorption anti-freezing autoclaved aerated concrete block and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757291.3A CN105384462A (en) | 2015-11-10 | 2015-11-10 | Sound-absorption anti-freezing autoclaved aerated concrete block and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105384462A true CN105384462A (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510757291.3A Withdrawn CN105384462A (en) | 2015-11-10 | 2015-11-10 | Sound-absorption anti-freezing autoclaved aerated concrete block and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105384462A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948656A (en) * | 2016-05-13 | 2016-09-21 | 江苏科技大学 | Cement-based organic and inorganic composite thermal-insulating foaming material and preparation method |
| CN112239370A (en) * | 2020-09-25 | 2021-01-19 | 安徽筑园景新型建材科技有限公司 | High-strength aerated concrete block and preparation method thereof |
-
2015
- 2015-11-10 CN CN201510757291.3A patent/CN105384462A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948656A (en) * | 2016-05-13 | 2016-09-21 | 江苏科技大学 | Cement-based organic and inorganic composite thermal-insulating foaming material and preparation method |
| CN112239370A (en) * | 2020-09-25 | 2021-01-19 | 安徽筑园景新型建材科技有限公司 | High-strength aerated concrete block and preparation method thereof |
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Application publication date: 20160309 |
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