CN108863132A - A kind of preparation method that modified granite gathers materials and adhesiveness detection method - Google Patents
A kind of preparation method that modified granite gathers materials and adhesiveness detection method Download PDFInfo
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- CN108863132A CN108863132A CN201810690709.7A CN201810690709A CN108863132A CN 108863132 A CN108863132 A CN 108863132A CN 201810690709 A CN201810690709 A CN 201810690709A CN 108863132 A CN108863132 A CN 108863132A
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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Abstract
The invention discloses a kind of preparation method that modified granite gathers materials and adhesiveness detection method, processing step are as follows：It takes SBS modified pitch to heat, liquid antistripping agent is then added, stirs evenly, is placed under 175-180 DEG C of environment, mixed solution a is made；It weighs that granite gathers materials and cement is heated to 175-181 DEG C, then stirs evenly the two, mixture b is made in 175-180 DEG C of heat preservation；Mixed solution a is put into mix in mix container, mixture b is added during mix, stirs evenly and gathers materials to get modified granite.Modified granite is gathered materials in the water bath with thermostatic control for being put into 76-84 DEG C, part is taken out at regular intervals and gathers materials and is put into cold water, divides 4-6 time and takes, finally according to the progress adhesion level evaluation of stripping area percentage.Modified granite aggregate adhesion durability prepared by the present invention is strong, water stability is good, reaches 5 grades of adhesion requirements of bituminous pavement；The invention also discloses a kind of adhesivity evaluation methods for being applicable in convenience and have good correlation with engineering.
Description
Technical field
The invention belongs to technical field of road engineering, specifically, being related to a kind of preparation method that modified granite gathers materials
And adhesiveness detection method.
Background technique
With the fast development of highway in China cause, the common alkali basalt of asphalt surface course or diabase building stones demand
It is gradually increased.Therefore, some areas analyze and research to granite, solve stone to extend road surface range of gathering materials
Expect gradually short contradiction, reduces certain engineering cost, provide advantageous service for later construction.
It is usually that modified pitch and hard aggregate blending is uniform at present, it is used to making high-grade highway asphalt surface course.One
As alkaline building stones can wrap pitch well, but without good wearability.The acid rocks hard wear resistant such as granite, phase
Embedded squeezing effect can be given full play between mutually, and the wear-resistant light ability of granite is strong, mixture anti-slide performance is strong and can grow
Phase uses, therefore in the case where mineral aggregate is in short supply, can be used as preferred material.But the binding force between this kind of mineral aggregate and pitch
Low, the asphalt membrane for dripping surface of aggregate is easy to fall off, and bituminous pavement is caused to be easy that the early diseases such as pit-hole are presented.It needs to adhere to it
Grade is studied, its water stabilizing is improved.
The application performance for having many scholars and being dedicated to research granite domestic in recent years, currently used method are main
For：1) its service performance is improved by additive, it is general its adherency grade is improved by addition miberal powder and cement, it is commonly applied to
Cutting optimal；2) the use of calcium hydroxide is addition modified measures, the adherency grade gathered materials can be improved, but due to the fineness of calcium hydroxide
Higher, when construction, should not disperse, and construction quality is difficult to control, and calcium hydroxide quality itself controls Shortcomings；3) pass through addition
Liquid antistripping agent improves the adhesiveness of granite, but with the use of engineering, adhesion level durability is not strong, high temperature
Problem easy to aging is gradually clear；4) qualitative problems of construction is improved using polymer science experiment, but only by annex solution
Body antistripping agent has been unable to satisfy the requirement on road surface.
Therefore, how a kind of method can effectively improve granite aggregate adhesion and adhesiveness detection method are provided
The technical issues of as those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the invention discloses a kind of method for being effectively improved granite aggregate adhesion, modified colored hilllock
Rock aggregate adhesion durability is strong, water stability is good, is able to satisfy 5 grades of adhesion requirements of bituminous pavement superficial layer, and have excellent
Pavement performance；The invention also discloses a kind of adhesivity evaluation methods for being applicable in convenience and have good correlation with engineering.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of preparation method that modified granite gathers materials, includes the following steps：
(1) it takes SBS modified pitch to be heated to 175-180 DEG C up to liquid condition, liquid antistripping agent is then added, stirring is equal
It is even, it is placed under 175-180 DEG C of environment and keeps liquid condition, mixed solution a is made；
(2) it weighs that granite gathers materials and cement is heated to 175-181 DEG C respectively, heats 1-1.2h, then mix the two
Stirring 1-3min is closed, is stirred evenly, 175-180 DEG C of heat preservation 15-20min, mixture b is made；
(3) step (1) mixed solution a is put into mix in mix container, be added during mix in keeping warm mode
Mixture b, stirring 10-15min are modified granite to stirring evenly and gather materials.
Preferably, the SBS modified pitch and granite, which gather materials, is added with bitumen aggregate ratio for the ratio of 5.5-7.5%.
Preferably, the liquid antistripping agent is XT-2 liquid antistripping agent, and specific gravity is 0.8~1.2, and adding proportion is
The 0.4-0.6% of SBS modified pitch dosage.
Preferably, the adding proportion of the cement is the 3-4% that granite gathers materials with SBS modified pitch gross mass.
Preferably, the granite, which gathers materials, selects partial size gathering materials for 4.75-16mm.
Preferably, the granite gathers materials crush values for 15-16%, wearing valve 17-18%, and SiO2Content is 70-
71%, Al2O3Content is 14-15%, Na2O content is 3-4%, CaO content 2-3%.
Preferably, the cement is composite Portland cement, strength grade 32-33, apparent relative density 3.009-
3.02。
A kind of detection method of modified granite aggregate adhesion, the system that a kind of modified granite described above is gathered materials
Modification granite prepared by Preparation Method gathers materials in the water bath with thermostatic control for being put into 76-84 DEG C, is taken out every 0.5h partially modified
Granite is put into cold water, and so that remaining modified granite is gathered materials and continued to be statically placed in hot bath, is divided 4-6 times and is taken, last root
Adhesion level is evaluated according to stripping area percentage is unified.
Preferably, the interval time may also be set to 1h, 1.5h or 2h.
The present invention is tested using improved water seaoning, and measures the asphalt film after 0.5h, 1h, 1.5h, 2h immersion respectively
Stripping area and removing percentage, observe surface of aggregate asphalt membrane dropping situations, with《Highway engineering pitch and asphalt examination
Test regulation》Based on the grade evaluation demarcated in (JTG E20-2011), measures modified granite aggregate adhesion grade and meet 5 grades
Class requirement, be suitable for the higher bituminous pavement superficial layer of adhesion requirement, extend the application range that granite gathers materials.
Beneficial effects of the present invention are as follows：
1, the present invention relates to the pavement performance that material is suitable for asphalt, can improve that granite gathers materials completely is viscous
Attached grade, modified granite, which gathers materials, has the characteristics that engineering is easy to use, and has good construction quality correlation；This
Invention is able to solve the problem of adhesiveness deficiency in the environment of long term high temperature immersion.
2, material of the present invention can improve granite and gather materials the adherency etc. with modified pitch by combination each other
Grade.Cement additive is process by basic mineral first, can form stronger knot with acidic materials such as modified pitch
With joint efforts, when the granite with process heating gathers materials and stirs, since there are capillary forces and intermolecular mutual work on surface
Firmly, cement will be attached to surface, increase the surface-active that granite gathers materials, the cohesive force of mineral aggregate can be improved.
3, liquid antistripping agent is a kind of high score subclass cohesive material, have excellent high temperature resistance, mainly by with
Modified asphalt material is stirred, and can significantly increase the activity of pitch, improves the binding force that granite gathers materials with modified pitch.
The addition of XT-2 liquid antistripping agent can efficiently solve a large amount of building stones when mixing and stirring, and particle surface, which is unable to fully to wrap cement etc., to be changed
Property material the problem of, be further ensured that the adherency grade of mineral aggregate, there is significant excellent stability.
4, in recent years, alkaline building stones gradually decrease, and granite gradually climbs up the arena of history, the present invention is solving
Certainly while mineral aggregate adhesion issues, it is ensured that the stability of its adhesiveness, the present invention have potential use value.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Each raw material used by the present embodiment is：
Granite gathers materials for crop field richness industry building stones, and crush values of gathering materials are 15.4%, wearing valve 17.6%, and SiO2Content
For 70.02%, Al2O3Content is 14.93%, Na2O content is 3.29%, CaO content 2.17%；
It is that 60-80 is configured as unit of 0.1mm by Tai Puke matrix pitch that SBS modified pitch, which requires needle penetration,
Relative density is 1.030, and softening point is 81 DEG C；
Cement is ends of the earth board composite Portland cement, strength grade 32.5, apparent relative density 3.009；
XT-2 liquid antistripping agent produces the high molecular material prepared by Changzhou Xin Tuo pavement modified material company, and specific gravity is
0.8-1.2。
Be first to prepare for work, prepare five experiment basins, according to use sequence to carry out to it respectively marked as one,
Two, three, four, No. five experiment basins, preheat mix container in 175 DEG C of oven environments.Take 800g SBS modified pitch at 175 DEG C
Liquid condition is reached in environment, the XT-2 liquid antistripping agent for weighing SBS modified pitch, and mixing 3.2g simultaneously is placed in No.1 experiment
With in basin and stirring evenly, places it in 175 DEG C of environment and continue to keep liquid condition；Weigh 90 crop field richnesses that quality is 310g
Industry stone field 13.2~16mm partial size gathers materials in No. two experiment basins, is put into 175 DEG C of baking ovens and heats 1h；Take sufficient cement in
In No. three experiment basins, it is placed in 175 DEG C of baking ovens of identical environment and heats 1h.
Then No.1 experiment is weighed according to 5.5% bitumen aggregate ratio be put into mixing for preheating with the 17.6g SBS modified pitch in basin
Mix in container is closed, is placed in No. four experiments with being put into 15min in 175 DEG C of environment in basin；It is weighed according to the ratio of mineral aggregate quality 3%
90 crop fields richness industry stone field, 13.2~16mm partial size in 9.3g cement and No. two experiment basins in No. three experiment basins gathers materials
It is put in same mix container, stirring 1min reaches uniform state, is placed in No. five experiments with being put into 15min in 175 DEG C of environment in basin；
It takes out No. four experiment basins and No. five experiments is put into mix container with SBS modified pitch with whole mineral aggregates in basin and is stirred
15min reaches uniform state, select sufficiently be wrapped with asphalt membrane gather materials be placed on glass plate cool down 1h after be put into 80 DEG C of thermostatted water
The dropping situations of asphalt membrane are observed in bath, finally adhesion level are evaluated according to stripping area percentage is unified, this hair
The modification granite aggregate adhesion grade of bright preparation is 5 grades.
The present invention is gathered materials using above-mentioned raw materials by modified granite made from rational proportion and technique preparation step
While with high-adhesiveness, it may have excellent stability meets the pavement performance of asphalt.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of preparation method that modified granite gathers materials, which is characterized in that include the following steps：
(1) it takes SBS modified pitch to be heated to 175-180 DEG C up to liquid condition, liquid antistripping agent is then added, stirs evenly,
It is placed under 175-180 DEG C of environment and keeps liquid condition, mixed solution a is made；
(2) it weighs that granite gathers materials and cement is heated to 175-181 DEG C respectively, heats 1-1.2h, then the two is mixed and is stirred
1-3min is mixed, is stirred evenly, mixture b is made in 175-180 DEG C of heat preservation 15-20min；
(3) step (1) mixed solution a is put into mix in mix container, the mixing for being in keeping warm mode is added during mix
Object b, stirring 10-15min are modified granite to stirring evenly and gather materials.
2. the preparation method that a kind of modified granite according to claim 1 gathers materials, which is characterized in that the SBS is modified
Pitch and granite, which gather materials, to be added with bitumen aggregate ratio for the ratio of 5.5-7.5%.
3. the preparation method that a kind of modified granite according to claim 2 gathers materials, which is characterized in that the anti-stripping of liquid
Falling agent is XT-2 liquid antistripping agent, and specific gravity is 0.8~1.2, and adding proportion is the 0.4-0.6% of SBS modified pitch dosage.
4. the preparation method that a kind of modified granite according to claim 1-3 gathers materials, which is characterized in that described
The adding proportion of cement is the 3-4% that granite gathers materials with SBS modified pitch gross mass.
5. the preparation method that a kind of modified granite according to claim 4 gathers materials, which is characterized in that the granite collection
It is gathering materials for 4.75-16mm that material, which selects partial size,.
6. the preparation method that a kind of modified granite according to claim 1 gathers materials, which is characterized in that the granite collection
Material crush values are 15-16%, wearing valve 17-18%, and SiO2Content is 70-71%, Al2O3Content is 14-15%, Na2O
Content is 3-4%, CaO content 2-3%.
7. the preparation method that a kind of modified granite according to claim 1 gathers materials, which is characterized in that the cement is multiple
Close portland cement, strength grade 32-33, apparent relative density 3.009-3.02.
8. a kind of detection method of modified granite aggregate adhesion, which is characterized in that claim 1-7 is described in any item
Modification granite prepared by a kind of preparation method that modified granite gathers materials gathers materials in the water bath with thermostatic control for being put into 76-84 DEG C, often
Interval 0.5h is taken out partially modified granite and is put into cold water, and so that remaining modified granite is gathered materials and continue to be statically placed in hot water
In bath, divide 4-6 times and take, finally adhesion level is evaluated according to stripping area percentage is unified.
9. a kind of detection method of modified granite aggregate adhesion according to claim 8, which is characterized in that between described
It may also be set to 1h, 1.5h or 2h every the time.
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| CN201810690709.7A CN108863132A (en) | 2018-06-28 | 2018-06-28 | A kind of preparation method that modified granite gathers materials and adhesiveness detection method |
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Cited By (3)
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| CN111175187A (en) * | 2020-01-21 | 2020-05-19 | 湖北工程学院 | Method for evaluating adhesiveness of asphalt mortar and aggregate |
| CN115060881A (en) * | 2022-05-27 | 2022-09-16 | 交通运输部公路科学研究所 | Assessment and use method of facultative basalt aggregate |
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| CN101798206A (en) * | 2010-03-09 | 2010-08-11 | 武汉理工大学 | Method for improving water stability performance of gneiss and bitumen mixed material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272229A (en) * | 2019-06-18 | 2019-09-24 | 河南省交通规划设计研究院股份有限公司 | The preparation method of anti-strip rubber-asphalt mixture |
| CN110272229B (en) * | 2019-06-18 | 2021-12-21 | 河南省交通规划设计研究院股份有限公司 | Preparation method of anti-stripping rubber asphalt mixture |
| CN111175187A (en) * | 2020-01-21 | 2020-05-19 | 湖北工程学院 | Method for evaluating adhesiveness of asphalt mortar and aggregate |
| CN115060881A (en) * | 2022-05-27 | 2022-09-16 | 交通运输部公路科学研究所 | Assessment and use method of facultative basalt aggregate |
| US11828717B1 (en) | 2022-05-27 | 2023-11-28 | Research Institute Of Highway Ministry Of Transport | Method for evaluating and utilizing sonnenbrand basalt aggregate |
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Application publication date: 20181123 |