CN109796156A - A kind of Prefabricated rubber powder modified asphalt cementitious matter and preparation method thereof - Google Patents
A kind of Prefabricated rubber powder modified asphalt cementitious matter and preparation method thereof Download PDFInfo
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- CN109796156A CN109796156A CN201910095510.4A CN201910095510A CN109796156A CN 109796156 A CN109796156 A CN 109796156A CN 201910095510 A CN201910095510 A CN 201910095510A CN 109796156 A CN109796156 A CN 109796156A
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Abstract
The present patent application belongs to building material technical field, specifically discloses a kind of Prefabricated rubber powder modified asphalt cementitious matter and preparation method thereof, and component includes 100 parts of pitch, 80-160 parts of miberal powder, 5-25 parts of rubber powder；After component heating and melting is stirred, Prefabricated rubber powder modified asphalt cementitious matter is made.Compared with prior art, Prefabricated rubber powder modified asphalt cementitious matter made in this programme, can greatly simplify road maintenance maintenance construction task difficulty and the degree of dependence to equipment.
Description
Technical field
The invention belongs to building material technical fields, specifically disclose a kind of Prefabricated rubber powder modified asphalt cementitious matter
And preparation method thereof.
Background technique
The dark brown complex mixture that pitch is made of the hydrocarbon and its non metallic derivatives of different molecular weight,
It is one kind of high viscosity organic liquid, is in semisolid or liquid, surface is in black, dissolves in carbon disulfide, is that a kind of waterproof is anti-
Tide and corrosion-resistant organic cementitious material are mainly used for the industry such as coating, plastics, rubber and road project etc..For road
The pitch overwhelming majority of road engineering is bi tumenf orr oad, is the accessory of petrochemical industry, belongs to large chemicals, by special
The petrochemical enterprise of door provides.
The high-grade highway in 95% or more China uses asphalt pavement structure, and pitch is China or even whole world use scope
The most wide and maximum road-making material of dosage.Pitch when being used for road engineering, usually with miberal powder, gather materials, drip is made in modifying agent etc.
Green mixture, using asphalt paved roads.Producing asphalt is engineering construction needs, is generally existed by unit in charge of construction
Construction site selects place nearby, builds asphalt blending station, produces asphalt using special large scale equipment.
Before bituminous mixture, for pitch, it usually needs it is stored using 50-100 tons or so of tank, and
And need ceaselessly to heat and keep the temperature always, to ensure that the pitch moment is in fluid state, tank otherwise will be blocked up.Asphalt
When production, pitch, to mixing and stirring in cylinder, is measured by special pipeline by the accurate measuring device of installation, then with other
Raw material mix.Therefore, in Process of Pitch Mixture Production, only pitch just needs to heat, storage, pumping, measures four big links, and
Requirement to device is extremely high.In addition, asphalt mixing plant at least takes up an area thousands of square meters even square meters up to ten thousand, usually only on a large scale
New construction just has factors of site selection.
Urban municipal road and ordinary road daily maintenance, usually local light maintenance may not self-built drip
Green mixing station, only purchase commodity asphalt.Commodity asphalt is usually that mixing station mixes and stirs, and it is existing to be transported to construction
, haul distance is uncertain, and Insulation is difficult to ensure；In practice of construction, after asphalt transports to scene, temperature is difficult to ensure,
The key indexes such as the gradation of mixture itself and bitumen aggregate ratio are also difficult to ensure, therefore, greatly affected road maintenance quality.When
Before, although there is the live mixing apparatus of some miniaturizations, live heating-storage-pump is still used for the processing of pitch
The processes such as send-measure carry out mixing and stirring mixture, this proposes high requirement to the complexity of equipment.
Summary of the invention
The purpose of the present invention is to provide a kind of Prefabricated rubber powder modified asphalt cementitious matters and preparation method thereof, with solution
The complex problem of bituminous cements is certainly made in road engineering.
In order to achieve the above object, base case of the invention are as follows: a kind of Prefabricated rubber powder modified asphalt cementitious matter,
Its component includes 100 parts of pitch, 80-160 parts of miberal powder, 5-25 parts of rubber powder；After component heating and melting is stirred, it is made pre-
Manufactured goods rubber powder modified asphalt cementitious matter.
The number of all components is calculated in this programme with quality.
The working principle of this base case is: the drip of Prefabricated modifying rubber powder is made in pitch, miberal powder and rubber powder
Green cementitious matter can select Prefabricated rubber powder modified asphalt cementitious matter in road site operation as needed, without
Bituminous cements is processed using various kinds of equipment in road construction site, heating-storage-pump of the scene to pitch
The four link operations sent-measured thoroughly simplify, then can greatly simplify site operation equipment, improve construction operation efficiency,
Improve road maintenance maintenance quality.Prefabricated rubber powder modified asphalt cementitious matter is particularly suitable for road maintenance maintenance project,
Road maintenance maintenance construction task difficulty and the degree of dependence to equipment can greatly be simplified.To Prefabricated modifying rubber powder
Bituminous cements is heated, and is directly used in repairing road surface, can be reduced the otherness of material, improves the quality on repairing road surface, prolong
The service life on long road surface.
The beneficial effect of this base case is:
If 1, pitch uses at the scene, scene is needed heat to pitch four links that-storage-pumps-measure, operated
Trouble, device requirement is high, causes the construction time elongated, Prefabricated rubber powder modified asphalt cementitious matter is made in advance, can omit
These links, it is extremely convenient, fast；
2, in asphalt, the dosage of pitch, miberal powder and rubber powder is less, when maintaining construction, if part
The area of repairing is smaller, then the dosage that these components need is just smaller, and scene needs to be added after measuring, and is easy to produce deviation, makes
The match ratio of asphalt is impacted, and then influences the service performance of asphalt, and Prefabricated modifying rubber powder drips
Green cementitious matter using when the prefabricated component of monolith is proportionally added into according to the size of maintenance area, metering is accurate；
3, often there is phenomena such as isolation after rubber powder modified asphalt storage, therefore the modified pitch composition that sampling obtains can
Can be uneven, the performance of asphalt mixture with this pitch mixing is bad, it will affect maintenance quality, and it is pre- in this programme
Manufactured goods rubber powder modified asphalt cementitious matter is that pitch, rubber powder, miberal powder etc. are prepared by actual ratio in advance, whole when construction
Pot use is mixed and stirred in addition, and it is non-uniform to completely eliminate this pitch even if there is segregation phenomenon, after mixing and stirring by reheating
It influences, it can be with effective guarantee performance of asphalt mixture, it is ensured that the quality of maintenance.
Compared with prior art, Prefabricated rubber powder modified asphalt cementitious matter made in this programme, can be very big
Ground simplifies road maintenance maintenance construction task difficulty and the degree of dependence to equipment.
Further, the rubber powder includes elastomer, vulcanizing agent, vulcanizing activator, charges, reinforcing agent, oil content, plasticising
Agent and antioxidant.
Rubber powder is grouped as by above group, and prepared Prefabricated modifying rubber powder cementitious matter can be made to have preferable bullet
Property, so that anti-seismic performance when making road occupation is more preferably.
Further, the elastomer is natural rubber and asynthetic rubber.
Asynthetic rubber mostly uses shoddy to be made, and research has shown that, the comprehensively modifying effect of shoddy is only second to SBS,
By shoddy suitable for Prefabricated rubber powder modified asphalt cementitious matter, shoddy can be enable sufficiently to reuse, naturally
Rubber and cooperate with asynthetic rubber, makes Prefabricated rubber powder modified asphalt cementitious matter that there is preferable modified performance.
It further, further include 0-20 parts of additive in component.
It in some special road constructions, needs that additive is added, additive is added to Prefabricated pitch according to the proportion
In, the operation of road maintenance maintenance construction can be further simplified and improve maintenance quality.
Further, the additive is calcium hydroxide, flyash, carbon black, cement, nano silica, organic metal salt, fibre
One of dimension is a variety of.
Additive selects these materials, and Prefabricated pitch can be made more to be widely suitable in road engineering.
Further, the Prefabricated rubber powder modified asphalt cementitious matter is bulk, and is 1-5kg/ block.
The block-like Prefabricated rubber powder modified asphalt cementitious matter of proof is tested in the case where this structure and above-mentioned size,
Production get up it is more convenient quickly, it is also very convenient to carry and use.
The present invention also provides a kind of production methods of Prefabricated rubber powder modified asphalt cementitious matter comprising the steps of:
(1) 100 parts of preparing asphalt, 80-160 parts of miberal powder, 5-25 parts of rubber powder, 0-20 parts of additive；
(2) heated asphalt is to soft state, and is stirred；
(3) rubber powder is added, constant temperature stirs 10-30min；
(4) miberal powder and additive is added, constant temperature stirs 5-10min, obtains the liquid composition being stirred；
(5) liquid composition is fitted into mold, after cooling, demoulding, packaging are made block-like Prefabricated rubber powder and change
Property bituminous cements.
The beneficial effect of above scheme is: through the above steps by miberal powder, rubber powder, the additive in component be added to
It is stirred evenly in the pitch of softening, can make to mix between each component more uniformly, so that the road performance built using it is more
It is good.In addition, block-like Prefabricated rubber powder modified asphalt cementitious matter, can save and use various kinds of equipment pair in road construction site
Bituminous cements is processed, and can greatly be simplified site operation equipment, be improved construction operation efficiency, and road dimension is improved
Repair maintenance quality.
Further, for step (2) heated asphalt to soft state, temperature is 150-190 DEG C.
At a temperature of this pitch can fast softening, and then convenient for be added rubber powder.
Specific embodiment
It is further described below by specific embodiment, and Prefabricated drip is described in detail by taking embodiment 1 as an example
Blueness, other embodiments and comparative example embody in table 1, and unshowned part is same as Example 1.
Embodiment 1
Present embodiment discloses a kind of Prefabricated rubber powder modified asphalt cementitious matters and preparation method thereof, and one kind is prefabricated into
The preparation method of product rubber powder modified asphalt cementitious matter comprising the steps of:
(1) 100 parts of preparing asphalt, 80 parts of miberal powder, 10 parts of rubber powder, 10 parts of additive；
The rubber powder includes elastomer, vulcanizing agent, vulcanizing activator, charges, reinforcing agent, oil content, plasticizer and resists
Oxygen agent；
The elastomer is natural rubber and asynthetic rubber, and elastomer accounts for the 55% of rubber powder；The reinforcing agent is adopted
With carbon black, the vulcanizing activator uses stearic acid, and the antioxidant uses antioxidant or antiozonant；
The additive is calcium hydroxide, in flyash, carbon black, cement, nano silica, organic metal salt, fiber
It is one or more；
(2) for heated asphalt to soft state, temperature is 150 DEG C, and is stirred；
(3) rubber powder is added, constant temperature stirs 30min；
(4) miberal powder and additive is added, constant temperature stirs 5min, obtains the liquid composition being stirred；
(5) liquid composition is fitted into mold, after cooling, demoulding, packaging are made block-like Prefabricated rubber powder and change
Property bituminous cements；
Prefabricated rubber powder modified asphalt cementitious matter is bulk, and is 1kg/ block, Prefabricated rubber powder modified asphalt
The preformed hole across entire Prefabricated rubber powder modified asphalt cementitious matter is uniformly provided on cementitious matter.The design of preformed hole can be just
In in Prefabricated pitch reheating, melt fast speed, to further speed up the speed of pavement patching.
Table 1
Utilize Prefabricated rubber powder modified asphalt glue prepared by embodiment 1- embodiment 3 and comparative example 1- comparative example 3
Ramming material carries out road rehabilitation, repairs the detailed process of road are as follows: according to the structure on former road surface, match ratio, disease size
Deng selecting corresponding packaged Prefabricated rubber powder modified asphalt cementitious matter after being calculated, and be heated to thawing
Then state is proportionally added and gathers materials, gather materials predominantly rubble in this programme, obtains asphalt, is mixed with this pitch
Material paves, rolls repairing road.
In addition increase comparative example 4, carry out repairing road by the way of conventional, i.e., do not prepare Prefabricated modifying rubber powder
Bituminous cements repairs road using commodity asphalt.
Embodiment 1- embodiment 3 is used above, after the mode of comparative example 1- comparative example 4 repairs road, to the road of repairing
Quality is examined, and the data examined are as shown in table 2 below.
Table 2
Following result can be obtained by the above quality inspection:
1, road is repaired using Prefabricated rubber powder modified asphalt cementitious matter prepared by embodiment 1- embodiment 3, more
It is able to maintain that patching material is consistent with road surface raw material, reduces the otherness of material, have preferable high-temperature stability and water steady
It is qualitative, preferably ensure repairing quality and repair efficiency.
2, road is repaired using Prefabricated rubber powder modified asphalt cementitious matter prepared by embodiment 1- embodiment 3, with
Comparative example 4 is compared, and the repair efficiency of Prefabricated bituminous cements and customary commercial asphalt is suitable, but Prefabricated
Bituminous cements substantially reduces time and process used in repairing road, equipment used in repairing road is simplified, to mention
The high construction efficiency of repairing road.
3, road is repaired using Prefabricated rubber powder modified asphalt cementitious matter prepared by embodiment 1 and comparative example 1, from
The data of quality testing compare water stability and high-temperature stability it is found that the repairing road of finished asphalt prepared by embodiment 1
Meet bituminous pavement design for highway code requirement, but reduce miberal powder in comparative example 1, causes prepared by comparative example 1
Finished asphalt repairs the performance decline of road, and water stability and high-temperature stability have not met bituminous pavement design for highway specification
It is required that.
4, road is repaired using Prefabricated rubber powder modified asphalt cementitious matter prepared by embodiment 2 and comparative example 2, from
The data of quality testing are compared it is found that Prefabricated rubber powder modified asphalt cementitious matter better quality prepared by embodiment 2, is mixed
The water stability and high-temperature stability of the asphalt of system meet bituminous pavement design for highway code requirement, in comparative example 2
Because the temperature that rubber powder is added is too low, the time of stirring is too short, keep rubber powder modifier mixing uneven, therefore obtained drip
Green mixture performance decline, water stability and high-temperature stability have not met bituminous pavement design for highway code requirement.
5, road is repaired using Prefabricated bituminous cements prepared by embodiment 3 and comparative example 3, from quality testing
Data are compared it is found that Prefabricated bituminous cements better quality prepared by embodiment 3, the water of the asphalt of mixing are steady
Qualitative and high-temperature stability meets bituminous pavement design for highway code requirement, because too many, rubber is added in miberal powder in comparative example 3
The temperature that powder modifying agent is added is too high, ageing of asphalt is serious and structure of modifier can be detrimental to it is bad, and comparative example 3 prepare it is prefabricated
Finished asphalt specification is too big, and use when needs subdividing to use, and causes metering aspect also to have certain error, therefore obtain
Performance of asphalt mixture it is insufficient, water stability and high-temperature stability have not met bituminous pavement design for highway code requirement.
Claims (8)
1. a kind of Prefabricated rubber powder modified asphalt cementitious matter, it is characterised in that: its component includes 100 parts of pitch, miberal powder 80-
160 parts, 5-25 parts of rubber powder；After component heating and melting is stirred, Prefabricated rubber powder modified asphalt cementitious matter is made.
2. a kind of Prefabricated rubber powder modified asphalt cementitious matter according to claim 1, which is characterized in that the rubber
Powder includes elastomer, vulcanizing agent, vulcanizing activator, charges, reinforcing agent, oil content, plasticizer and antioxidant.
3. a kind of Prefabricated rubber powder modified asphalt cementitious matter according to claim 2, which is characterized in that the elasticity
Body is natural rubber and asynthetic rubber.
4. a kind of Prefabricated rubber powder modified asphalt cementitious matter according to claim 3, which is characterized in that in its component
It further include 0-20 parts of additive.
5. a kind of Prefabricated rubber powder modified asphalt cementitious matter according to claim 4, which is characterized in that the addition
Agent is one of calcium hydroxide, flyash, carbon black, cement, nano silica, organic metal salt, fiber or a variety of.
6. a kind of Prefabricated rubber powder modified asphalt cementitious matter according to claim 1-5, which is characterized in that
The Prefabricated rubber powder modified asphalt cementitious matter is bulk, and is 1-5kg/ block,.
7. a kind of production method of Prefabricated rubber powder modified asphalt cementitious matter, which is characterized in that comprise the steps of:
(1) 100 parts of preparing asphalt, 80-160 parts of miberal powder, 5-25 parts of rubber powder, 0-20 parts of additive；
(2) heated asphalt is to soft state, and is stirred；
(3) rubber powder is added, constant temperature stirs 10-30min；
(4) miberal powder and additive is added, constant temperature stirs 5-10min, obtains the liquid composition being stirred；
(5) liquid composition is fitted into mold, after cooling, block-like Prefabricated modifying rubber powder drip is made in demoulding, packaging
Green cementitious matter.
8. a kind of production method of Prefabricated rubber powder modified asphalt cementitious matter according to claim 7, feature exist
In step (2) heated asphalt to soft state, temperature is 150-190 DEG C.
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| CN85107467A (en) * | 1985-10-10 | 1987-04-15 | 包钢综合企业公司油毡纸厂 | Adhesive block from coal tar based pitch |
| CN105419355A (en) * | 2015-11-11 | 2016-03-23 | 长安大学 | Superfine waste rubber powder-nanometer material compound modified asphalt and preparation method thereof |
| CN108101420A (en) * | 2017-12-30 | 2018-06-01 | 中铁十八局集团第五工程有限公司 | Rubber powder modified asphalt mixture and preparation method thereof |
| CN108911589A (en) * | 2018-09-10 | 2018-11-30 | 招商局公路信息技术（重庆）有限公司 | A kind of high-elastic height prolongs the concrete precast block and its preparation method and application adaptively deformed |
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2019
- 2019-01-31 CN CN201910095510.4A patent/CN109796156A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107467A (en) * | 1985-10-10 | 1987-04-15 | 包钢综合企业公司油毡纸厂 | Adhesive block from coal tar based pitch |
| CN105419355A (en) * | 2015-11-11 | 2016-03-23 | 长安大学 | Superfine waste rubber powder-nanometer material compound modified asphalt and preparation method thereof |
| CN108101420A (en) * | 2017-12-30 | 2018-06-01 | 中铁十八局集团第五工程有限公司 | Rubber powder modified asphalt mixture and preparation method thereof |
| CN108911589A (en) * | 2018-09-10 | 2018-11-30 | 招商局公路信息技术（重庆）有限公司 | A kind of high-elastic height prolongs the concrete precast block and its preparation method and application adaptively deformed |
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Application publication date: 20190524 |