CN105645452A - Desulfurization-residue asphalt anti-stripping agent, and preparation method and application of agent - Google Patents
Desulfurization-residue asphalt anti-stripping agent, and preparation method and application of agent Download PDFInfo
- Publication number
- CN105645452A CN105645452A CN201511016447.9A CN201511016447A CN105645452A CN 105645452 A CN105645452 A CN 105645452A CN 201511016447 A CN201511016447 A CN 201511016447A CN 105645452 A CN105645452 A CN 105645452A
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- CN
- China
- Prior art keywords
- fly ash
- desulphurize fly
- desulfurization
- stripping agent
- residue
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/143—Calcium-sulfate
- C04B22/145—Gypsum from the desulfuration of flue gases
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a desulfurization-residue asphalt anti-stripping agent, and a preparation method and an application of the agent. The method comprises: adopting desulfurization residue which is an industrial by-product as a raw material; drying the desulfurization residue at 100-105 DEG C to remove free moisture in the desulfurization residue; grinding the dried desulfurization residue with a ball mill to enable the fineness of the ground desulfurization residue to satisfy the following requirement that a 0.6 mm passing rate is 100%, a 0.15 mm passing rate is 90-100%, and a 0.075 mm passing rate is 70-100%; putting the ground desulfurization residue in a closed container with a temperature in a range of 450-550 DEG C; blowing air or oxygen in; and performing an oxidation reaction for 30-45 min to obtain the desulfurization-residue asphalt anti-stripping agent. According to the method, the desulfurization residue which is an industrial by-product is directly adopted as a raw material for modification, and then is taken as the asphalt anti-stripping agent. A series of environmental problems resulting from long-term stack of desulfurization residue are solved, the water damage resistance performance of bituminous concrete is improved, and certain social and economical benefit is produced.
Description
Technical field
The invention belongs to waste resource reutilization technology field, it is specifically related to a kind of desulphurize fly ash asphalt anti-stripping agent and its preparation method and application.
Background technology
Desulphurize fly ash is the industrial by-products produced after steel enterprise sintering technique or means of flue gas desulfurization of power plant, and its main component is calcium sulfate, calcium sulfite, calcium hydroxide and calcium carbonate. Owing to the content of calcium sulfite is higher, desulphurize fly ash is all restricted in the application of each side, at present also not for the proven technique of desulphurize fly ash. Can only stacking process at present, this not only takies a large amount of soils, also causes environmental pollution.
The damage by water evil problem of bituminous pavement is one of the most serious disease affect bituminous pavement working life, increase maintenance of surface cost always. In addition, owing to high-quality is built the road the minimizing of building stones resource, very poor paving of gathering materials builds bituminous pavement to have to use some asphalt adhesive performances in engineering construction, and therefore the damage by water evil problem of bituminous pavement is severeer.
Adopting antistripping agent to strengthen pitch with the adhesion property gathered materials is effectively improve the effective way of bituminous concrete anti-water damage property. Conventional antistripping agent is organic class and mineral-type. Organic class comprises amine class and phosphoric acid ester product, but thermostability is not good, is heated and easily decomposes, is unfavorable for environmental protection; Mineral-type comprises slaked lime, cement etc., but they exist price higher, add the problems such as working procedure. Composition containing calcium sulfate, calcium hydroxide in desulphurize fly ash, it is possible to improve pitch and the viscosifying power gathered materials, and will there is slow oxidation, oxidation volumetric expansion afterwards having in calcium sulfite, affect the stability of bituminous pavement structure under oxygen existent condition. Therefore asphalt anti-stripping agent can not directly be it can be used as.
Summary of the invention
The object of the invention is a kind of method providing industrial by-products desulphurize fly ash to recycle, it is prepared into a kind of asphalt anti-stripping agent, it is incorporated in asphalt, the viscosifying power improving pitch and gather materials, improve the anti-water damage ability of bituminous concrete, solve the problem of environmental pollution that a large amount of stackings of desulphurize fly ash cause simultaneously.
For achieving the above object, adopt technical scheme as follows:
A kind of desulphurize fly ash asphalt anti-stripping agent, it adopts industrial by-products desulphurize fly ash to be raw material, and dry, powder mill is also obtained after high temperature oxidation.
The preparation method of above-mentioned desulphurize fly ash asphalt anti-stripping agent, comprises the following steps:
1) at 100-105 DEG C, desulphurize fly ash is dried, remove the free water content in desulphurize fly ash;
2) adopting ball mill to carry out powder mill dried desulphurize fly ash, powder makes the fineness of desulphurize fly ash reach following fineness requirement after grinding: 0.6mm percent of pass is 100%, 0.15mm percent of pass be 90-100%, 0.075mm percent of pass is 70-100%;
3) desulphurize fly ash after being ground by powder, in the encloses container of 450-550 DEG C, blasts air or oxygen, oxidizing reaction 30-45min, namely obtains desulphurize fly ash asphalt anti-stripping agent.
. a kind of bituminous concrete, with the addition of above-mentioned desulphurize fly ash asphalt anti-stripping agent.
By such scheme, when above-mentioned desulphurize fly ash asphalt anti-stripping agent adds bituminous concrete to, its volume accounts for the 3-5wt% of material total mass.
By such scheme, it is characterised in that described gathers materials for basalt, pitch used is road oil matrix pitch.
The invention has the beneficial effects as follows:
Directly industrial by-products desulphurize fly ash is adopted to be raw material, it is achieved that the recycling of waste resource.
High temperature oxidation process is that the calcium sulfite oxidation in desulphurize fly ash is become calcium sulfate, reaches the object of desulphurize fly ash stable performance. And high temperature oxidation process of the present invention is simple.
Desulphurize fly ash modification is used as asphalt anti-stripping agent, is possible not only to solve desulphurize fly ash and stacks caused a series of environmental problems for a long time, and improve the anti-water damage energy of bituminous concrete, produce certain Social and economic benef@.
Embodiment
Following examples further illustrate the technical scheme of the present invention, but not as limiting the scope of the invention.
The preparation process that desulphurize fly ash of the present invention process is used as asphalt anti-stripping agent is as follows:
Get steel enterprise sintering sulfur removal technology or power plant desulfurization industrial by-products desulphurize fly ash, it is dried at 100-105 DEG C, remove the free water content in desulphurize fly ash;
Adopting ball mill to carry out powder mill dried desulphurize fly ash, powder makes the fineness of desulphurize fly ash reach bituminous concrete filler fineness requirement after grinding: 0.6mm percent of pass is 100%, 0.15mm percent of pass be 90-100%, 0.075mm percent of pass is 70-100%;
Desulphurize fly ash after being ground by powder, in the encloses container of 500 �� 50 DEG C, blasts air or oxygen; Carrying out high temperature oxidation in this temperature range, owing to oxidising process needs the regular hour, react 30-45 minute, the desulphurize fly ash after being processed is for subsequent use.
Embodiment 1
Getting the modification desulphurize fly ash prepared to mix by the 3% of bituminous concrete total mass, mixture gradation adopts AC-16 type level to join, and gather materials employing basalt, and the pitch that bituminous cements adopts is road oil No. 70 pitches, 5.0% bitumen aggregate ratio.
Embodiment 2
Getting the modification desulphurize fly ash prepared to mix by the 4% of bituminous concrete total mass, mixture gradation adopts AC-16 type level to join, and gather materials employing basalt, and the pitch that bituminous cements adopts is road oil No. 70 pitches, 5.0% bitumen aggregate ratio.
Embodiment 3
Getting the modification desulphurize fly ash prepared to mix by the 5% of bituminous concrete total mass, mixture gradation adopts AC-16 type level to join, and gather materials employing basalt, the pitch that bituminous cements adopts is road oil No. 70 pitches, 5.0% bitumen aggregate ratio.
Preparation containing desulphurize fly ash asphalt anti-stripping agent bituminous concrete: concrete grammar is in the asphalt anti-stripping agent prepared being incorporated into above-mentioned pitch and gathering materials, and mixes the bituminous concrete closing and obtaining modification after evenly. The common lime stone ore powder of respective quality is replaced by its incorporation; Prepare simultaneously and do not add modification desulphurize fly ash asphalt anti-stripping agent asphalt concrete. What each shelves gathered materials is sieved through rate such as table 1, and in each asphalt, each raw material ratio is such as table 2.
Table 1
Table 2
Shaping asphalt marshal piece, Ma Xieer performance is in table 3, the performance mixing the asphalt having added modification desulphurize fly ash asphalt anti-stripping agent as can be seen from Table 3 meets JTGF40-2004 " standard specification for construction and acceptance of highway asphalt pavement " requirement, and anti-water damage property is better than asphalt prepared by common ore deposit powder.
Table 3
Claims (5)
1. a desulphurize fly ash asphalt anti-stripping agent, it is characterised in that adopt industrial by-products desulphurize fly ash to be raw material, dry, powder mill is also obtained after high temperature oxidation.
2. the preparation method of desulphurize fly ash asphalt anti-stripping agent described in claim 1, it is characterised in that comprise the following steps:
1) at 100-105 DEG C, desulphurize fly ash is dried, remove the free water content in desulphurize fly ash;
2) adopting ball mill to carry out powder mill dried desulphurize fly ash, powder makes the fineness of desulphurize fly ash reach following fineness requirement after grinding: 0.6mm percent of pass is 100%, 0.15mm percent of pass be 90-100%, 0.075mm percent of pass is 70-100%;
3) desulphurize fly ash after being ground by powder, in the encloses container of 450-550 DEG C, blasts air or oxygen, oxidizing reaction 30-45min, namely obtains desulphurize fly ash asphalt anti-stripping agent.
3. a bituminous concrete, it is characterised in that with the addition of desulphurize fly ash asphalt anti-stripping agent described in claim 1.
4. bituminous concrete described in claim 3, it is characterised in that when described desulphurize fly ash asphalt anti-stripping agent adds bituminous concrete to, its volume accounts for the 3-5wt% of material total mass.
5. bituminous concrete described in claim 3, it is characterised in that what bituminous concrete was used gathers materials for basalt, bituminous concrete pitch used is road oil matrix pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016447.9A CN105645452A (en) | 2015-12-29 | 2015-12-29 | Desulfurization-residue asphalt anti-stripping agent, and preparation method and application of agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016447.9A CN105645452A (en) | 2015-12-29 | 2015-12-29 | Desulfurization-residue asphalt anti-stripping agent, and preparation method and application of agent |
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| Publication Number | Publication Date |
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| CN105645452A true CN105645452A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511016447.9A Pending CN105645452A (en) | 2015-12-29 | 2015-12-29 | Desulfurization-residue asphalt anti-stripping agent, and preparation method and application of agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970392A (en) * | 2019-05-13 | 2019-07-05 | 福建龙净脱硫脱硝工程有限公司 | A kind of asphalt and preparation method thereof |
| CN110436830A (en) * | 2019-08-30 | 2019-11-12 | 武汉武新新型建材股份有限公司 | A kind of anti-strip anti-water damage high-performance bituminous concrete and preparation method thereof |
| CN111484302A (en) * | 2020-04-09 | 2020-08-04 | 扬州大学 | Asphalt mixture filler composition |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1583230A (en) * | 1976-06-11 | 1981-01-21 | Mitsubishi Heavy Ind Ltd | Asphalt constructional composition |
| CN101544481A (en) * | 2009-05-06 | 2009-09-30 | 河北科技大学 | Method for manufacturing eco-cement |
| CN101734875A (en) * | 2009-12-28 | 2010-06-16 | 华北电力大学（保定） | Method for catalytic oxidation of calcium sulfite in desulphurization ash by dry method and semi-dry method |
| CN102010146A (en) * | 2010-10-15 | 2011-04-13 | 中钢集团武汉安全环保研究院有限公司 | Method for modifying desulfuration ash for cement retarder |
| CN201908048U (en) * | 2010-11-26 | 2011-07-27 | 中冶赛迪工程技术股份有限公司 | Desulphurized ash oxidation device |
| CN103553401A (en) * | 2013-10-25 | 2014-02-05 | 武汉理工大学 | Asphalt anti-stripping agent for road, and preparation and application thereof |
| CN103803828A (en) * | 2013-12-25 | 2014-05-21 | 武汉武新新型建材有限公司 | Modified desulfurization ash for cement and concrete and preparation method thereof |
-
2015
- 2015-12-29 CN CN201511016447.9A patent/CN105645452A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1583230A (en) * | 1976-06-11 | 1981-01-21 | Mitsubishi Heavy Ind Ltd | Asphalt constructional composition |
| CN101544481A (en) * | 2009-05-06 | 2009-09-30 | 河北科技大学 | Method for manufacturing eco-cement |
| CN101734875A (en) * | 2009-12-28 | 2010-06-16 | 华北电力大学（保定） | Method for catalytic oxidation of calcium sulfite in desulphurization ash by dry method and semi-dry method |
| CN102010146A (en) * | 2010-10-15 | 2011-04-13 | 中钢集团武汉安全环保研究院有限公司 | Method for modifying desulfuration ash for cement retarder |
| CN201908048U (en) * | 2010-11-26 | 2011-07-27 | 中冶赛迪工程技术股份有限公司 | Desulphurized ash oxidation device |
| CN103553401A (en) * | 2013-10-25 | 2014-02-05 | 武汉理工大学 | Asphalt anti-stripping agent for road, and preparation and application thereof |
| CN103803828A (en) * | 2013-12-25 | 2014-05-21 | 武汉武新新型建材有限公司 | Modified desulfurization ash for cement and concrete and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970392A (en) * | 2019-05-13 | 2019-07-05 | 福建龙净脱硫脱硝工程有限公司 | A kind of asphalt and preparation method thereof |
| CN110436830A (en) * | 2019-08-30 | 2019-11-12 | 武汉武新新型建材股份有限公司 | A kind of anti-strip anti-water damage high-performance bituminous concrete and preparation method thereof |
| CN111484302A (en) * | 2020-04-09 | 2020-08-04 | 扬州大学 | Asphalt mixture filler composition |
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Application publication date: 20160608 |
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