CN101941848B - Autoclaved sawn mud concrete building block and processing technique thereof - Google Patents
Autoclaved sawn mud concrete building block and processing technique thereof Download PDFInfo
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- CN101941848B CN101941848B CN2010102480787A CN201010248078A CN101941848B CN 101941848 B CN101941848 B CN 101941848B CN 2010102480787 A CN2010102480787 A CN 2010102480787A CN 201010248078 A CN201010248078 A CN 201010248078A CN 101941848 B CN101941848 B CN 101941848B
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- building block
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- aluminium powder
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- 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
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses an autoclaved sawn mud concrete building block and a processing technique thereof, belongs to a building material and a production and processing process thereof, and particularly relates to an engineering building block taking sawn mud generated in a stone sawing and processing process as a manufacturing raw material and a processing technique thereof. The building block is characterized by comprising the following raw materials in percentage by weight: 70 to 82 percent of sawn mud, 14 to 22 percent of lime, 3 to 14 percent of cement, 0.8 to 1.8 percent of gypsum and 0.06 to 0.12 percent of aluminum powder, wherein the water cement ratio is 0.5 to 0.68/1. The technique manufactures the high-quality material used in the building industry by fully using a large amount of waste, namely the sawn mud generated in the stone processing industry; and the technique has considerable economic benefit, reduces the pollution emission of the stone processing industry to the environment to a great extent, and meanwhile has good social benefit.
Description
Technical field
The invention belongs to a kind of material of construction and production and processing technology thereof, particularly relating to a kind of is the building block and the processing technology thereof of raw making materials with the saw mud that is generated in the stone material sawing course of processing.
Background technology
In civil works, using more walling unit is powder ash air-entrained concrete building block and silica sand air-entrained concrete building block at present, and its main raw making materials is flyash and silica sand.Wherein,
The powder ash air-entrained concrete building block raw material ratio:
Flyash 70%～80% lime 15%～22% cement 3%～7%
Gypsum 0.8%～1.8% aluminium powder 0.06%～0.12% wc 0.5～0.65/1
Silica sand air-entrained concrete building block raw material ratio:
Silica sand 68%～76% lime 13%～21% cement 8%～14%
Gypsum 0.8%～1.6% aluminium powder 0.06%～0.12% wc 0.5～0.68/1
It is thus clear that in above-mentioned existing walling unit, the consumption of flyash and silica sand is very big.And the price of these two kinds of materials is higher, and along with the continuous increase of consumption and the implementation of resources regulation policy, its price has the trend that continues to climb to a higher point.On the other hand, saw mud is the main waste in the processing of stone industry, and its growing amount is very big, and does not still have the approach that utilizes again at present.General way is to discharge on the spot, and therefore air and the water source environment to the locality causes severe contamination.
Summary of the invention
The object of the invention promptly is to provide a kind of novel steaming to press saw cement concrete building block and processing technology thereof, to reach utilization of waste material, turns waste into wealth, and reduces environmental pollution, practices thrift the purpose of utilizing resource.
The building block of saw cement concrete is pressed in the disclosed steaming of the present invention, it is characterized in that raw material ratio (by weight) is:
Saw mud 70%～82% lime 14%～22% cement 3%～14%
Gypsum 0.8%～1.8% aluminium powder 0.06%～0.12% wc 0.5～0.68/1.
The processing technology of saw cement concrete building block is pressed in the disclosed steaming of the present invention, it is characterized in that may further comprise the steps:
Step 1: collect the saw mud that is generated in the stone material sawing course of processing, take the method for seasoning or oven dry to make it dehydration, carry out fragmentation with ball mill then, grind, cross 400～600 mesh sieves, it is subsequent use to obtain sawing the mud fine powder;
Step 2: by above-mentioned raw material ratio, saw mud fine powder and gypsum that mill is good are knocked down agitated pool, add water to stir, and the form slurry that stirs is subsequent use;
Step 3: slurry is pumped in the pouring can, add lime, cement stirring 3～4 minutes successively, measure the slurry diffusibleness, diffusibleness requires to reach 16～20, and diffusibleness is through adding water adjustment;
Step 4: after diffusibleness meets the requirements; Start the heating rod in the pouring can, simultaneously aluminium powder is added in the aluminium powder stirrer, add entry then; Process aluminium powder suspension-s; After slurry temperature reaches 40～45 degree, aluminium powder suspension-s is added in the pouring can, restir was poured into slurry in the mould after 50～60 seconds;
Step 5: place curing room to carry out maintenance just on mould, the curing room room temperature is at 30～40 degrees centigrade, curing time 3～3.5 hours;
Step 6: treat to release after blank strength reaches 0.7～0.9 MPa, cut by specified dimension after the demoulding;
Step 7: hang on the dolly after the base substrate upset with well cutting, then dolly is pushed autoclave;
Step 8: autoclave was vacuumized 20 minutes; Treat to advance saturation steam when the autoclave internal pressure is shown as zero, the autoclave internal pressure reached 1.28Mpa in about about 2.5 hours, carried out 6 hours constant voltage maintenance then; Maintenance is carried out exhaust after finishing; Pressure is opened the still door after reaching standard atmospheric pressure, and building block is released, and piles up to get final product.
Saw cement concrete building block and processing technology thereof are pressed in steaming provided by the present invention; Made full use of a large amount of wastes that the processing of stone industry is generated---saw mud; And then process the used quality matetrial of building trade; Not only have considerable economic, and reduced of the disposal of pollutants of processing of stone industry to a great extent, have good social benefit simultaneously environment.
Embodiment
1. saw mud is put in storage.With the moisture stone flour that is generated in the stone material sawing process---1000 kilograms in mud of saw adds dog-house with shovel loader, behind ball mill grinding, delivers to agitated pool with travelling belt, adds 20 kilograms of gypsum, adds 720 kg water and fully stirs, and form slurry is subsequent use.
2. slurry is pumped in the pouring can, add double centner cement and 200 kilograms of lime, stir; The adjustment diffusibleness when treating that diffusibleness reaches 18 left and right sides, starts the heating rod in the pouring can; Reaching 45 degree backs at slurry temperature, to add concentration be 20 kilograms of 5% aluminium powder suspension-s, is poured in the mould.
3. mould is pushed curing room, maintenance is 3 hours in the room temperature about 40 degree.
4. mould is released curing room, through after the demoulding to cutting bed, be cut into the fritter of requirement after handling to roll-over table, after the upset unacceptable product is dug, hang onto on the steam-cured dolly with grabbing then.
5. steam-cured dolly is pushed to ferry bus, utilizes ferry bus that aerated blocks is advanced in the autoclave.
6. autoclave vacuumizes, and air inlet was carried out 6 hours constant voltage maintenance about 2.5 hours after pressure reaches 1.28Mpa.Maintenance is carried out exhaust, exhaust 1 hour after accomplishing.
7. after exhaust is accomplished steam-cured dolly is released autoclave, aerated blocks carries out transporting to inventory area behind the code-disc, carries out the room temperature maintenance, detects to dispatch from the factory after qualified.
Through detecting, the building block of saw cement concrete is pressed in the disclosed steaming of the present invention, and its technical indicator reaches:
Ultimate compression strength: 3.8Mpa (MV)
Monolithic minimum value: 2.9Mpa
Stem body amasss density: 612kg/m
3
Thermal conductivity (dry state): 0.15W/ (m.K)
Radionuclide is limited the quantity of: I
Ra0.08
Ir 0.15?。
Claims (2)
1. one kind is steamed the building block of pressure saw cement concrete, it is characterized in that raw material ratio is by weight:
Saw mud 70%～82% lime 14%～22% cement 3%～14%
Gypsum 0.8%～1.8% aluminium powder 0.06%～0.12% wc 0.5～0.68/1.
2. the working method of saw cement concrete building block is pressed in steaming according to claim 1, it is characterized in that may further comprise the steps:
Step 1: collect the saw mud that is generated in the stone material sawing course of processing, take the method for seasoning or oven dry to make it dehydration, carry out fragmentation with ball mill then, grind, cross 400～600 mesh sieves, it is subsequent use to obtain sawing the mud fine powder;
Step 2: by above-mentioned raw material ratio, saw mud fine powder and gypsum that mill is good are knocked down agitated pool, add water to stir, and the form slurry that stirs is subsequent use;
Step 3: slurry is pumped in the pouring can, add lime, cement stirring 3～4 minutes successively, measure the slurry diffusibleness, diffusibleness requires to reach 16～20, and diffusibleness is through adding water adjustment;
Step 4: after diffusibleness meets the requirements; Start the heating rod in the pouring can, simultaneously aluminium powder is added in the aluminium powder stirrer, add entry then; Process aluminium powder suspension-s; After slurry temperature reaches 40～45 degree, aluminium powder suspension-s is added in the pouring can, restir was poured into slurry in the mould after 50～60 seconds;
Step 5: place curing room to carry out maintenance just on mould, the curing room room temperature is at 30～40 degrees centigrade, curing time 3～3.5 hours;
Step 6: treat to release after blank strength reaches 0.7～0.9 MPa, cut by specified dimension after the demoulding;
Step 7: hang on the dolly after the base substrate upset with well cutting, then dolly is pushed autoclave;
Step 8: autoclave is vacuumized, treat to advance saturation steam when the autoclave internal pressure is shown as zero, after the autoclave internal pressure reaches 1.28Mpa; Carry out 6 hours constant voltage maintenance, carry out exhaust then, pressure is opened the still door after reaching standard atmospheric pressure; Building block is released, piled up and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102480787A CN101941848B (en) | 2010-08-04 | 2010-08-04 | Autoclaved sawn mud concrete building block and processing technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102480787A CN101941848B (en) | 2010-08-04 | 2010-08-04 | Autoclaved sawn mud concrete building block and processing technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101941848A CN101941848A (en) | 2011-01-12 |
| CN101941848B true CN101941848B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102480787A Expired - Fee Related CN101941848B (en) | 2010-08-04 | 2010-08-04 | Autoclaved sawn mud concrete building block and processing technique thereof |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103477747B (en) * | 2012-06-13 | 2015-09-30 | 山东港华石材有限公司 | A kind of method saw mud being transformed into soil matrix |
| CN103382124B (en) * | 2013-07-31 | 2015-07-29 | 浙江泰正钼业开发有限公司 | A kind of molybdenum tailings air-entrained concrete building block and preparation method thereof |
| CN103936381A (en) * | 2014-03-27 | 2014-07-23 | 陆玉珍 | Method for preparing wet-insulated autoclaved aerated concrete block |
| CN104692739A (en) * | 2015-01-30 | 2015-06-10 | 武汉理工大学 | Stone saw mud self-insulation light block and preparation method thereof |
| CN105000855A (en) * | 2015-06-30 | 2015-10-28 | 山东同德建材有限公司 | Autoclaved light sand aerated concrete blocks, and preparation method thereof |
| CN107805018B (en) * | 2017-10-29 | 2020-12-04 | 北京工业大学 | Self-compacting road backfill material produced by stone saw mud and construction method thereof |
| CN109650945B (en) * | 2019-01-31 | 2022-03-22 | 日照市勇明环保科技有限公司 | Stone saw mud self-hardening aerated concrete double-layer building block and preparation method thereof |
| CN112939400B (en) * | 2021-02-04 | 2022-06-17 | 中兴惠和(山东)环保科技有限公司 | Device for classifying and grading materials in saw mud garbage |
| CN113402231B (en) * | 2021-07-15 | 2022-11-18 | 武汉盛大长青建材有限公司 | Method for producing ready-mixed concrete by using stone saw mud |
| CN114436613B (en) * | 2022-03-10 | 2023-06-02 | 武汉楚天名扬建材有限公司 | Treatment-free saw mud-based cementing material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000256052A (en) * | 1999-03-08 | 2000-09-19 | Chugoku Electric Power Co Inc:The | Production of concrete block and concrete block |
| CN1236747A (en) * | 1999-04-17 | 1999-12-01 | 徐玉忠 | Mortar powder of magnesium slag ash and its product |
| CN1482099A (en) * | 2003-06-21 | 2004-03-17 | 陈德余 | 300 stage pulverized coal ash heat preservation fireproof aerated concrete building block and method of production |
| JP2007152929A (en) * | 2005-11-08 | 2007-06-21 | Milcon:Kk | Manufacturing method of concrete molding, and concrete molding |
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