CN107288011A - A kind of asphalt foaming method - Google Patents
A kind of asphalt foaming method Download PDFInfo
- Publication number
- CN107288011A CN107288011A CN201710606259.4A CN201710606259A CN107288011A CN 107288011 A CN107288011 A CN 107288011A CN 201710606259 A CN201710606259 A CN 201710606259A CN 107288011 A CN107288011 A CN 107288011A
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- China
- Prior art keywords
- foaming
- calcium oxide
- pitch
- added
- water
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses a kind of asphalt foaming method, this method is mainly included the following steps that：(1) 1 5wt% calcium oxide, 0.1 0.5wt% sodium acid carbonate is added in matrix pitch；(2) 140 DEG C are stirred and heated to, 0.2wt% antistripping agent is added, 1 2.5wt% water is passed through, continues to stir 20 30 minutes；(3) pitch after must foaming.Traditional Water blown technology is combined by the present invention with the direct foaming technique of foaming agent, foam performance is lifted by the use of sodium acid carbonate as foaming agent, add calcium oxide, when carrying out Water blown, calcium oxide meets water heat release, energy resource consumption during heated asphalt can be reduced, pitch can be only heated to that close to temperature water flowing foaming can be started, in addition, antistripping agent is added, the calcium carbonate of calcium oxide generation and the adhesion of pitch can be improved.
Description
Technical field
The present invention relates to field of bitumen technology, a kind of asphalt foaming method is specifically disclosed.
Background technology
A small amount of water is added in the pitch of high temperature, the rapid explosive evaporation of water heat, pitch will produce fine foam,
So that pitch expands.At this moment the physical property of pitch will temporarily change, and show as the viscosity of pitch and significantly reduce, this
Pitch under the state of kind is referred to as foamed asphalt.Foamed asphalt can easily with cold wet pellet uniform mixing, pellet need not with heat
Spice is heated to high temperature like that and expends many resources, and pitch need not also be processed by extra emulsification like that with emulsified asphalt,
It is easy to use and better results.Foamed asphalt is referred to as modified pitch by Shen Jinan, and this modification technology belongs to technologic and changed
Property.Foamed asphalt is not a kind of new bituminous binder, but the product that a kind of New technical use is brought.
But, also direct foaming agent is added in matrix pitch of someone's research is foamed in recent years, but is needed also exist for
Foaming just can be achieved in the decomposition temperature for being heated to foaming agent, and foaming effect is undesirable.
The content of the invention
Based on this, it is necessary to which for prior art problem, there is provided a kind of asphalt foaming method, comprehensive traditional Water blown skill
Art and new foaming agent foam method, and the temperature that heat release after water improves system is met using calcium oxide, add so as to save
The energy resource consumption of heated bitumen.
To realize above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of asphalt foaming method, it is characterized in that, this method is mainly included the following steps that：
(1) 1-5wt% calcium oxide, 0.1-0.5wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 1-2.5wt% water is passed through, continues to stir 20-30 minutes；
(3) pitch after must foaming.
Preferably, this method is mainly included the following steps that：
(1) 1-5wt% calcium oxide, 0.1-0.5wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 0.2wt% antistripping agent is added, 1-2.5wt% water is passed through, continues to stir 20-
30 minutes；
(3) pitch after must foaming.
Preferably, in the step (1), the addition of calcium oxide is 3wt%.
Preferably, the addition of sodium acid carbonate is 0.5wt% in the step (1).
Preferably, the intake positive correlation of the addition of the calcium oxide and the water, heating-up temperature with it is described
The addition of calcium oxide is negatively correlated.
Beneficial effects of the present invention are：Traditional Water blown technology is combined by the present invention with the direct foaming technique of foaming agent,
Foam performance is lifted by the use of sodium acid carbonate as foaming agent, calcium oxide is added, calcium oxide meets water heat release when carrying out Water blown, can
Energy resource consumption during heated asphalt is reduced, pitch can be only heated to that close to temperature water flowing foaming can be started, in addition, adding anti-
Exfoliant, can improve the calcium carbonate of calcium oxide generation and the adhesion of pitch.
Embodiment
For the feature, technological means and the specific purposes reached, function of the present invention, lower mask body can be further appreciated that
Embodiment is described in further detail to the present invention.
Embodiment 1
A kind of asphalt foaming method, it is characterized in that, this method is mainly included the following steps that：
(1) 1wt% calcium oxide, 0.5wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 1wt% water is passed through, continues to stir 20 minutes；
(3) pitch after must foaming.
Embodiment 2
(1) 5wt% calcium oxide, 0.1wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 0.2wt% antistripping agent is added, 2.5wt% water is passed through, continues to stir 30 points
Clock；
(3) pitch after must foaming.
Embodiment 3
(1) 3wt% calcium oxide, 0.5wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 0.2wt% antistripping agent is added, 2wt% water is passed through, continues to stir 30 minutes；
(3) pitch after must foaming.
In the embodiment above, according to processing request, technical staff can adjust according to following principle to technical parameter
It is whole：The intake positive correlation of the addition of the calcium oxide and the water, heating-up temperature and the addition negative of the calcium oxide
Close.
If calcium oxide addition is big, heating-up temperature can be less than 140 DEG C, if calcium oxide addition is small, heating-up temperature can
Higher than 140 DEG C, it is ensured that pitch is heated into flow regime.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of asphalt foaming method, it is characterized in that, this method is mainly included the following steps that：
(1) 1-5wt% calcium oxide, 0.1-0.5wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 1-2.5wt% water is passed through, continues to stir 20-30 minutes；
(3) pitch after must foaming.
2. a kind of asphalt foaming method according to claim 1, it is characterized in that, this method is mainly included the following steps that：
(1) 1-5wt% calcium oxide, 0.1-0.5wt% sodium acid carbonate is added in matrix pitch；
(2) 140 DEG C are stirred and heated to, 0.2wt% antistripping agent is added, 1-2.5wt% water is passed through, continues to stir 20-
30 minutes；
(3) pitch after must foaming.
3. a kind of asphalt foaming method according to claim 1 or 2, it is characterized in that, in the step (1), calcium oxide
Addition is 3wt%.
4. a kind of asphalt foaming method according to claim 1 or 2, it is characterized in that, sodium acid carbonate in the step (1)
Addition is 0.5wt%.
5. a kind of asphalt foaming method according to claim 1 or 2, it is characterized in that, the addition of the calcium oxide and institute
The intake positive correlation of water is stated, heating-up temperature and the addition of the calcium oxide are negatively correlated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606259.4A CN107288011A (en) | 2017-07-24 | 2017-07-24 | A kind of asphalt foaming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710606259.4A CN107288011A (en) | 2017-07-24 | 2017-07-24 | A kind of asphalt foaming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107288011A true CN107288011A (en) | 2017-10-24 |
Family
ID=60102808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710606259.4A Pending CN107288011A (en) | 2017-07-24 | 2017-07-24 | A kind of asphalt foaming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107288011A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404509A (en) * | 2000-02-25 | 2003-03-19 | 科洛维德克股份有限公司 | Process and system for production of a warm foam mix asphalt composition |
| CN101287801A (en) * | 2005-09-12 | 2008-10-15 | Alm控股公司 | Bituminous paving composition and process for bituminous paving |
| CN101952356A (en) * | 2008-02-01 | 2011-01-19 | 万喜路桥公司 | Exothermic mixtures is used to make the purposes of bituminous concrete |
| CN106883628A (en) * | 2017-04-18 | 2017-06-23 | 无锡市城市道桥科技有限公司 | A kind of preparation method of warm mix foamed asphalt |
-
2017
- 2017-07-24 CN CN201710606259.4A patent/CN107288011A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1404509A (en) * | 2000-02-25 | 2003-03-19 | 科洛维德克股份有限公司 | Process and system for production of a warm foam mix asphalt composition |
| CN101287801A (en) * | 2005-09-12 | 2008-10-15 | Alm控股公司 | Bituminous paving composition and process for bituminous paving |
| CN101952356A (en) * | 2008-02-01 | 2011-01-19 | 万喜路桥公司 | Exothermic mixtures is used to make the purposes of bituminous concrete |
| CN106883628A (en) * | 2017-04-18 | 2017-06-23 | 无锡市城市道桥科技有限公司 | A kind of preparation method of warm mix foamed asphalt |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |