CN108046618A - A kind of method that lime slaking performance is adjusted using aerating concrete waste material - Google Patents
A kind of method that lime slaking performance is adjusted using aerating concrete waste material Download PDFInfo
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- CN108046618A CN108046618A CN201711432226.9A CN201711432226A CN108046618A CN 108046618 A CN108046618 A CN 108046618A CN 201711432226 A CN201711432226 A CN 201711432226A CN 108046618 A CN108046618 A CN 108046618A
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- CN
- China
- Prior art keywords
- waste material
- concrete waste
- aerating concrete
- lime
- aerating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
- C04B2/04—Slaking
- C04B2/06—Slaking with addition of substances, e.g. hydrophobic agents ; Slaking in the presence of other compounds
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of methods that lime slaking performance is adjusted using aerating concrete waste material, comprise the following steps：（1）Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤20mm；（2）After broken aerating concrete waste material nature dehydration, moisture content≤10% is treated；（3）A certain proportion of aerating concrete waste material is added according to the digestic property of lime and is mixed with uniformly, wherein the content of aerating concrete waste material is 5% ~ 10%, and then mixture is added in grinding machine and carries out grinding.The present invention adjusts lime slaking performance using aerating concrete waste material can effectively adjust the oxidation rate and digestion condition of lime, and raising pours stability；Wherein aerating concrete waste material is that the substandard products in light-weighted autoclaved sand aerated concrete production crush, and scene is workable, and simple for process, it can be achieved that resource recycles, environmental protection has significant economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of method for adjusting lime slaking performance more particularly to a kind of utilization aerating concrete waste material tune
The method of arthrolith ash digestic property.
Background technology
China's lime is mainly for construction site is answered, and oxidation rate and digestion condition are not major control index, due to city
The influence of field economic function, although China's lime is resourceful, its quality differs greatly, and is difficult to find to fit completely in the market
Answer the quick lime of air entrained concrete production.Air entrained concrete technology controlling and process itself is more difficult, when using quick lime, due to
In the just a large amount of resolutions of casting process early stage, cause slurry premature thickening, be far from suitable with the process of getting angry, as a result generate " crust "
Hold up, green body is shunk and phenomena such as depression, after cast, although green body comparatively fast reaches maximum temperature, hardening is still relatively slow, product
Intensity is relatively low.And traditional adjusting method by adding gypsum or reduction amount of lime is ineffective, and can drop to a certain extent
Low product strength.
Lime is one of main raw material(s) in air entrained concrete production, and the digestic property of lime is evaluation lime performance
Leading indicator, be to influence air entrained concrete slurry an important factor for pouring stability and end properties, produce light-weighted autoclaved sand
With digestion time in 8min ~ 15min, digestion condition is preferred air entrained concrete in 80 DEG C ~ 90 DEG C of middling speed lime.
The shortcomings that prior art：（1）Alleviate the oxidation rate of quick lime in production using the method for adding gypsum, for disappearing
Even if quick lime that solution is exceedingly fast adds in again, more gypsum is also of no avail, because it is in aerating when the amount of gypsum is more than 4% ~ 5%
Almost without effect in concrete；（2）Alleviate the oxidation rate of lime by adjusting the method for formula, reduce lime consumption
Increase cement consumption simultaneously, but the method can reduce the intensity of product to a certain degree.
The content of the invention
It is an object of the invention to solve in the prior art, using increasing, the amount of gypsum adjusting lime impact of performance is bad, utilizes
The shortcomings that amount of lime adjusts big lime Properties Control difficulty and influence product strength is reduced, invention is a kind of simple for process and can be real
Existing resource circulation utilization, environmental protection, the method with good practicability.
The above-mentioned purpose of the present invention is achieved by the following technical programs：
A kind of method that lime slaking performance is adjusted using aerating concrete waste material, is comprised the following steps：（1）By air entrained concrete
Waste material utilizes crusher in crushing, broken aerating concrete waste material grain size≤20mm；（2）Broken aerating concrete waste material
Natural dehydration, treats moisture content≤10%；（3）Lime and air entrained concrete waste residue are mixed, wherein the content of air entrained concrete waste residue
For 5% ~ 10%, mixture is then added to grinding in grinding machine.
Preferably, broken aerating concrete waste material grain size≤15mm in step 1.
Preferably, aerating concrete waste material moisture content≤8% in step 2 after natural dehydration.
Preferably, the content of aerating concrete waste material is 6% ~ 8% in step 3.
Preferably, the component of the aerating concrete waste material includes quartz sand, lime, cement, gypsum, aluminium powder, foam stabilizer,
The content of wherein each component is：Quartz sand 50% ~ 60%, lime 8% ~ 13%, cement 20% ~ 30%, gypsum 2% ~ 4%, aluminium powder 0.6 ‰ ~
0.7 ‰, foam stabilizer 0.02 ‰ ~ 0.03 ‰.
Compared with prior art, the advantage of the invention is that：
（1）The present invention can effectively reduce the oxidation rate of lime using aerating concrete waste material adjusting lime slaking performance and disappear
Temperature is solved, raising pours stability；
（2）Aerating concrete waste material of the present invention is that the substandard products in light-weighted autoclaved sand aerated concrete production crush, and scene can
Strong operability, simple for process, it can be achieved that resource recycles, environmental protection has significant economic benefit and social benefit.
Specific embodiment
To make the object of the invention, technical solution and advantage clearer, embodiments of the present invention will be made into one below
Step is described in detail.
The present invention provides a kind of method that lime slaking performance is adjusted using aerating concrete waste material, including following step
Suddenly：（1）Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤20mm；（2）It is broken
Aerating concrete waste material nature dehydration afterwards, moisture content≤10%；（3）Lime and air entrained concrete waste residue are mixed, wherein aerating
The content of concrete waste residue is 5% ~ 10%, and mixture then is added to grinding in grinding machine.
Preferably, broken aerating concrete waste material grain size≤15mm in step 1.
Preferably, aerating concrete waste material moisture content≤8% after being dried in step 2.
Preferably, the content of aerating concrete waste material is 6% ~ 8% in step 3.
Preferably, the component of the aerating concrete waste material includes quartz sand, lime, cement, gypsum, aluminium powder, foam stabilizer,
The content of wherein each component is：Quartz sand 50% ~ 60%, lime 8% ~ 13%, cement 20% ~ 30%, gypsum 2% ~ 4%, aluminium powder 0.6 ‰ ~
0.7 ‰, foam stabilizer 0.02 ‰ ~ 0.03 ‰.
Embodiment 1
Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤20mm；After crushing
Aerating concrete waste material nature dehydration, treat moisture content≤10%；According to the aerating concrete waste material of lime slaking performance addition 9%
And be mixed with, then mixture is added in grinding machine and carries out grinding, the digestion time of lime is 6min before grinding, and resolution is warm
93 DEG C of degree.
The digestion time of lime is 13min after addition aerating concrete waste material grinding, and digestion condition is 89 DEG C.
Embodiment 2
Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤15mm；It is broken
Aerating concrete waste material nature dehydration, treats moisture content≤8%；According to the aerating concrete waste material of lime slaking performance addition 7% simultaneously
Be mixed with, then mixture be added in grinding machine and carries out grinding, before grinding the digestion time of lime be 6min, digestion condition
88℃。
The digestion time of lime is 12min after addition aerating concrete waste material grinding, and digestion condition is 86 DEG C.
Embodiment 3
Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤18mm；It is broken
Aerating concrete waste material nature dehydration, treats moisture content≤10%；According to the aerating concrete waste material of lime slaking performance addition 5% simultaneously
Be mixed with, then mixture be added in grinding machine and carries out grinding, before grinding the digestion time of lime be 5min, digestion condition
84℃。
The digestion time of lime is 9min after addition aerating concrete waste material grinding, and digestion condition is 83 DEG C.
Embodiment 4
Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤16mm；It is broken
Aerating concrete waste material nature dehydration, treats moisture content≤8%；According to the aerating concrete waste material of lime slaking performance addition 7% simultaneously
Be mixed with, then mixture be added in grinding machine and carries out grinding, before grinding the digestion time of lime be 8min, digestion condition
92℃。
The digestion time of lime is 14min after addition aerating concrete waste material grinding, and digestion condition is 89 DEG C.
Embodiment 5
Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤15mm；It is broken
Aerating concrete waste material nature dehydration, treats moisture content≤10%；According to the aerating concrete waste material of lime slaking performance addition 5% simultaneously
Be mixed with, then mixture be added in grinding machine and carries out grinding, before grinding the digestion time of lime be 7min, digestion condition
87℃。
The digestion time of lime is 9min after addition aerating concrete waste material grinding, and digestion condition is 85 DEG C.
The digestion time of lime can reach 8 ~ 15min, digestion condition after the addition aerating concrete waste material grinding of embodiment 1 ~ 5
It can reach 80 ~ 90 DEG C.The application can reduce the digestion condition of lime by adding aerating concrete waste material（Air entrained concrete gives up
Expect the heat release instead of part lime）, extend digestion time.
The present invention using aerating concrete waste material adjust lime slaking performance can effectively reduce lime oxidation rate and
Digestion condition, raising pour stability；Aerating concrete waste material of the present invention is time in light-weighted autoclaved sand aerated concrete production
Product crush, and scene is workable, and simple for process, it can be achieved that resource recycles, environmental protection has significant warp
Benefit of helping and social benefit.
Although the embodiments of the present invention have been disclosed as above, but it is not limited in listed fortune in specification and embodiment
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easy to implement
In addition modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to spies
Fixed details.
Claims (5)
- A kind of 1. method that lime slaking performance is adjusted using aerating concrete waste material, which is characterized in that comprise the following steps：（1）Aerating concrete waste material is utilized into crusher in crushing, broken aerating concrete waste material grain size≤20mm；（2）After broken aerating concrete waste material nature dehydration, moisture content≤10% is treated；（3）Lime and air entrained concrete waste residue are mixed, wherein the content of air entrained concrete waste residue is 5% ~ 10%, then will mixing Object is added to grinding in grinding machine.
- 2. a kind of method that lime slaking performance is adjusted using aerating concrete waste material according to claim 1, feature It is, broken aerating concrete waste material grain size≤15mm in step 1.
- 3. a kind of method that lime slaking performance is adjusted using aerating concrete waste material according to claim 1, feature It is, aerating concrete waste material moisture content≤8% in step 2 after natural dehydration.
- 4. a kind of method that lime slaking performance is adjusted using aerating concrete waste material according to claim 1, feature It is, the content of aerating concrete waste material is 6% ~ 8% in step 3.
- 5. according to a kind of side that lime slaking performance is adjusted using aerating concrete waste material of claim 1 ~ 4 any one of them Method, which is characterized in that the component of the aerating concrete waste material includes quartz sand, lime, cement, gypsum, aluminium powder, foam stabilizer, The content of wherein each component is：Quartz sand 50% ~ 60%, lime 8% ~ 13%, cement 20% ~ 30%, gypsum 2% ~ 4%, aluminium powder 0.6 ‰ ~ 0.7 ‰, foam stabilizer 0.02 ‰ ~ 0.03 ‰.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711432226.9A CN108046618A (en) | 2017-12-26 | 2017-12-26 | A kind of method that lime slaking performance is adjusted using aerating concrete waste material |
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| CN201711432226.9A CN108046618A (en) | 2017-12-26 | 2017-12-26 | A kind of method that lime slaking performance is adjusted using aerating concrete waste material |
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| CN108046618A true CN108046618A (en) | 2018-05-18 |
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| CN201711432226.9A Pending CN108046618A (en) | 2017-12-26 | 2017-12-26 | A kind of method that lime slaking performance is adjusted using aerating concrete waste material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112707655A (en) * | 2019-10-25 | 2021-04-27 | 新疆新特新能建材有限公司 | Lime modifier and method for delaying rapid quicklime digestion, modified quicklime, autoclaved aerated concrete block and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000854A (en) * | 2015-06-16 | 2015-10-28 | 凤阳九龙新型建材有限公司 | Aerated concrete block production process |
-
2017
- 2017-12-26 CN CN201711432226.9A patent/CN108046618A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000854A (en) * | 2015-06-16 | 2015-10-28 | 凤阳九龙新型建材有限公司 | Aerated concrete block production process |
Non-Patent Citations (1)
| Title |
|---|
| 张继能，顾同曾编: "《加气混凝土生产工艺》", 30 June 1992, 武汉工业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112707655A (en) * | 2019-10-25 | 2021-04-27 | 新疆新特新能建材有限公司 | Lime modifier and method for delaying rapid quicklime digestion, modified quicklime, autoclaved aerated concrete block and preparation method thereof |
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Application publication date: 20180518 |