CN115505276A - Ultrathin overlay modified asphalt and preparation method thereof - Google Patents
Ultrathin overlay modified asphalt and preparation method thereof Download PDFInfo
- Publication number
- CN115505276A CN115505276A CN202211196397.7A CN202211196397A CN115505276A CN 115505276 A CN115505276 A CN 115505276A CN 202211196397 A CN202211196397 A CN 202211196397A CN 115505276 A CN115505276 A CN 115505276A
- Authority
- CN
- China
- Prior art keywords
- powder
- modified
- asphalt
- parts
- stirring
- Prior art date
- 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.)
- Pending
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 107
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 164
- 229920001971 elastomer Polymers 0.000 claims abstract description 61
- 239000005060 rubber Substances 0.000 claims abstract description 61
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- ZFRKQXVRDFCRJG-UHFFFAOYSA-N skatole Chemical class C1=CC=C2C(C)=CNC2=C1 ZFRKQXVRDFCRJG-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 27
- 239000011707 mineral Substances 0.000 claims abstract description 27
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 20
- 235000016068 Berberis vulgaris Nutrition 0.000 claims abstract description 19
- 241000335053 Beta vulgaris Species 0.000 claims abstract description 19
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 19
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 19
- 229920002635 polyurethane Polymers 0.000 claims abstract description 19
- 239000004814 polyurethane Substances 0.000 claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims description 93
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 65
- 239000003513 alkali Substances 0.000 claims description 44
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 35
- 238000000227 grinding Methods 0.000 claims description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 239000008367 deionised water Substances 0.000 claims description 28
- 229910021641 deionized water Inorganic materials 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 28
- 235000010755 mineral Nutrition 0.000 claims description 26
- 239000003822 epoxy resin Substances 0.000 claims description 24
- 229920000647 polyepoxide Polymers 0.000 claims description 24
- 229920000459 Nitrile rubber Polymers 0.000 claims description 22
- 229920006122 polyamide resin Polymers 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 21
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 21
- 239000010881 fly ash Substances 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- 239000012948 isocyanate Substances 0.000 claims description 17
- 150000002513 isocyanates Chemical class 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 17
- 229920002748 Basalt fiber Polymers 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 239000011265 semifinished product Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 7
- 229940074386 skatole Drugs 0.000 claims description 7
- 238000003892 spreading Methods 0.000 claims description 2
- 239000011800 void material Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000011384 asphalt concrete Substances 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920002121 Hydroxyl-terminated polybutadiene Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- WJTCGQSWYFHTAC-UHFFFAOYSA-N cyclooctane Chemical compound C1CCCCCCC1 WJTCGQSWYFHTAC-UHFFFAOYSA-N 0.000 description 1
- 239000004914 cyclooctane Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of asphalt, in particular to ultrathin overlay modified asphalt and a preparation method thereof, aiming at the problems of weak splitting tensile strength, low porosity and insufficient anti-rutting capability, the invention provides the following scheme that the modified asphalt comprises 80 parts of asphalt, 10-15 parts of mixed resin, 0.2-0.9 part of modified skatole, 0.5-1.5 parts of polyurethane, 0.5-2.5 parts of reinforcing fiber, 0.5-3.5 parts of ethylene-vinyl acetate copolymer, 0.5-2.5 parts of modified mineral powder, 0.5-2.5 parts of rubber material and 0.5-1.5 parts of beet crushed slag, the split asphalt prepared by using the materials has greatly improved tensile strength, and is not easy to crack after being split, the asphalt has low tensile strength, high porosity, water can be quickly drained, the tensile strength of the asphalt is greatly improved, and the crack resistance of a road surface is greatly improved, so that a concave-convex road surface is avoided.
Description
Technical Field
The invention relates to the technical field of asphalt, in particular to ultrathin overlay modified asphalt and a preparation method thereof.
Background
The patent with the application number of 201811116479.X discloses a construction method of an anti-rutting and anti-stripping asphalt concrete pavement, which comprises the following steps of firstly preparing anti-rutting agent modified asphalt: adding 40-50 parts by weight of ethyl acetate into a flask, raising the temperature to 50-55 ℃, adding 10-15 parts of cyclooctane, stirring for 5-10 minutes, raising the temperature to 60-65 ℃, dropwise adding 3-7 parts of hydroxyl-terminated polybutadiene, stirring while dropwise adding, and controlling the dropwise adding speed to 3-5 ml/minute.
However, the construction method of the anti-rutting and anti-stripping asphalt concrete pavement has some problems, for example, the splitting tensile strength of the asphalt is weak, so that the asphalt is easy to crack in the using process, so that the pavement is cracked, the void ratio of the asphalt is low, the pavement drainage is poor, the anti-rutting capability is weak, and the problems that the pavement paved by the asphalt under the repeated rolling of the load of the vehicles in the past is easy to dent and bulge, and the like, so that the driving safety is influenced.
Disclosure of Invention
Based on the problems of weak splitting tensile strength, low porosity and insufficient anti-rutting capability in the prior art, the invention provides ultrathin overlay modified asphalt and a preparation method thereof.
The invention provides ultrathin overlay modified asphalt, which comprises 80 parts of asphalt, 10-15 parts of mixed resin, 0.2-0.9 part of modified skatole, 0.5-1.5 parts of polyurethane, 0.5-2.5 parts of reinforcing fiber, 0.5-3.5 parts of ethylene-vinyl acetate copolymer, 0.5-2.5 parts of modified mineral powder, 0.5-2.5 parts of rubber material and 0.5-1.5 parts of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated nitrile-butadiene rubber, the modified skatole comprises skatole powder and diatomite, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared from aluminum mineral powder, isocyanate and an ethanol solvent, the rubber material is prepared from rubber powder, nano manganese oxide, fly ash and deionized water, asphalt, mixed resin, modified caustic soda, polyurethane, reinforcing fibers, an ethylene-vinyl acetate copolymer, modified mineral powder, a rubber material and beet crushed slag are used for preparing the asphalt, the splitting tensile strength of the asphalt is greatly improved, cracks are not easy to appear in the split and cut asphalt, the tensile strength of the asphalt is low, the void ratio of the asphalt is high, water can quickly penetrate through the asphalt, drainage is convenient, the anti-rutting capability is greatly improved, and concave-convex downward phenomenon of an asphalt pavement is avoided.
Preferably, the asphalt is one of petroleum asphalt and natural asphalt, and the penetration degree of the asphalt is 30 dmm-500 dmm, so that the quality of the asphalt is ensured.
Preferably, the ratio of epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber in the mixed resin is 5.
Preferably, the preparation method of the mixed resin comprises the following steps: heating the epoxy resin and the polyamide resin to 125-135 ℃, controlling the rotating speed to 320-420 r/min, stirring for 15-30 minutes, adding the carboxyl-terminated liquid nitrile rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, and performing microwave treatment for 5-10 minutes to obtain the mixed resin, so that the epoxy resin can be effectively treated, and the mixed resin with better effect can be obtained.
Preferably, the proportion of the smelly alkali powder and the diatomite in the modified smelly alkali is controlled to be 7:3, and the preparation method of the modified smelly alkali comprises the following steps: pouring the odorous alkali powder and the diatomite into a grinding machine, grinding the odorous alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting steam from the bottom of the powder for heating, controlling the temperature of the steam to be 105-135 ℃, pouring the steam into a drying machine for drying after 5-10 minutes, drying by blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified odorous alkali, wherein the diatomite can be used for modifying the odorous alkali to enhance the performance of the odorous alkali.
Preferably, the proportion of the basalt fiber, the sodium hydroxide solution and the iron ore powder contained in the reinforced fiber is controlled to be 5.
Preferably, the ratio of the aluminum ore powder, isocyanate and ethanol solvent in the modified ore powder is controlled to be 3: grinding the aluminum ore powder into powder, sieving the powder by a 150-mesh sieve, heating the powder to 65-75 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature to 45-65 ℃, controlling the stirring rotating speed to 120-240 r/min, stirring for 30-45 minutes, then spreading isocyanate, continuously stirring for 30-45 minutes, pouring deionized water, cleaning for three times, drying to obtain modified ore powder, and modifying the aluminum ore powder by using the isocyanate and the ethanol solvent to enhance the dispersibility and compatibility of the aluminum ore powder.
Preferably, the ratio of the rubber powder, the nano manganese oxide, the fly ash and the deionized water of the rubber material is controlled to be 3: the rubber material is obtained by uniformly mixing the rubber powder, the nano manganese oxide, the fly ash and the deionized water, raising the temperature to 45-65 ℃, controlling the stirring speed to be 240-320 r/min, stirring for 30-45 minutes, dewatering, cleaning and drying.
Preferably, the ultra-thin overlay modified asphalt is preferably 80 parts of asphalt, 11 parts of mixed resin, 0.8 part of modified skatole, 1.2 parts of polyurethane, 1.5 parts of reinforcing fiber, 2.5 parts of ethylene-vinyl acetate copolymer, 1.5 parts of modified mineral powder, 1 part of rubber material and 0.5 part of beet crushed slag.
A preparation method of ultrathin overlay modified asphalt comprises the following steps:
s1: heating the asphalt to 165-185 ℃, controlling the stirring speed at 840 r/min-920 r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 30-45 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 320-480 r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment is carried out for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1040 r/min-1120 r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
The invention has the beneficial effects that:
the asphalt prepared from the asphalt, the mixed resin, the modified caustic soda, the polyurethane, the reinforcing fiber, the ethylene-vinyl acetate copolymer, the modified mineral powder, the rubber material and the beet crushed slag has the advantages that the splitting tensile strength of the asphalt is greatly improved, cracks are not easy to appear in the split asphalt, the tensile strength of the asphalt is low, the void ratio of the asphalt is high, water can penetrate rapidly, drainage is convenient, the anti-rutting capability is greatly improved, and the situation that an asphalt pavement is concave-convex downwards is avoided.
Drawings
Fig. 1 is a flow chart of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Referring to FIG. 1, the first embodiment
The embodiment provides an ultrathin overlay modified asphalt, which comprises 80 parts of asphalt, 11 parts of mixed resin, 0.6 part of modified skatole, 0.9 part of polyurethane, 1.5 parts of reinforcing fiber, 2.5 parts of ethylene-vinyl acetate copolymer, 1.5 parts of modified mineral powder, 1 part of rubber material and 1 part of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber, the modified skatole comprises skatole powder and kieselguhr, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared from aluminum ore powder, isocyanate and ethanol solvent, the rubber material is prepared from rubber powder, nano manganese oxide, fly ash and deionized water, the asphalt is petroleum asphalt, the penetration degree of the asphalt is 300dmm, the ratio of the epoxy resin, the polyamide resin and the carboxyl-terminated liquid nitrile rubber in the mixed resin is 5, and 2, and the preparation method of the mixed resin comprises the following steps: heating epoxy resin and polyamide resin to 130 ℃, controlling the rotating speed at 380r/min, stirring for 22 minutes, adding carboxyl-terminated liquid nitrile rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, performing microwave treatment for 7 minutes to obtain mixed resin, controlling the ratio of the smelly alkali powder to the diatomite in the modified smelly alkali to be 7:3, and preparing the modified smelly alkali: pouring the odorous alkali powder and the diatomite into a grinding machine, grinding the odorous alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting steam from the bottom of the powder for heating, controlling the temperature of the steam to be 115 ℃, pouring the steam into a drying machine for drying after 8 minutes, drying by blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified odorous alkali, wherein the ratio of basalt fiber, sodium hydroxide solution and iron ore powder in the reinforced fiber is controlled to be 5: grinding the aluminum ore powder into powder, sieving the powder by a 150-mesh sieve, heating the powder to 69 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature at 56 ℃, controlling the stirring rotation speed at 190r/min, scattering isocyanate after stirring for 34 minutes, continuously stirring for 36 minutes, pouring deionized water, cleaning for three times, and drying to obtain modified ore powder, wherein the ratio of the rubber powder, the nano manganese oxide, the fly ash and the deionized water of the rubber material is controlled at 3.6: and uniformly mixing the rubber powder, the nano manganese oxide, the fly ash and the deionized water, then raising the temperature to 54 ℃, controlling the stirring rotation speed at 270r/min, stirring for 34 minutes, dewatering, cleaning and drying to obtain the rubber material.
A preparation method of ultrathin overlay modified asphalt comprises the following steps:
s1: heating asphalt to 172 ℃, controlling the stirring speed at 880r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 37 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 450r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment is carried out for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1110r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
Referring to FIG. 1, example II
The embodiment provides an ultrathin overlay modified asphalt, which comprises 80 parts of asphalt, 11 parts of mixed resin, 0.8 part of modified skatole, 1.2 parts of polyurethane, 1.5 parts of reinforcing fiber, 2.5 parts of ethylene-vinyl acetate copolymer, 1.5 parts of modified mineral powder, 1 part of rubber material and 0.5 part of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber, the modified skatole comprises skatole powder and kieselguhr, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared by using aluminum ore powder, isocyanate and ethanol solvent, the rubber material is prepared by using rubber powder, nano manganese oxide, fly ash and deionized water, the asphalt is petroleum asphalt, the penetration degree of the asphalt is 300dmm, the ratio of the epoxy resin, the polyamide resin and the carboxyl-terminated liquid nitrile rubber in the mixed resin is 5, and the epoxy resin is selected as a fixing material, and the preparation method of the mixed resin comprises the following steps: heating epoxy resin and polyamide resin to 130 ℃, controlling the rotating speed at 380r/min, stirring for 22 minutes, adding carboxyl-terminated liquid nitrile rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, performing microwave treatment for 7 minutes to obtain mixed resin, controlling the ratio of the smelly alkali powder to the diatomite in the modified smelly alkali to be 7:3, and preparing the modified smelly alkali: pouring the odorous alkali powder and the diatomite into a grinding machine, grinding the odorous alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting steam from the bottom of the powder for heating, controlling the temperature of the steam to be 115 ℃, pouring the steam into a drying machine for drying after 8 minutes, drying by blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified odorous alkali, wherein the ratio of basalt fiber, sodium hydroxide solution and iron ore powder in the reinforced fiber is controlled to be 5: grinding the aluminum ore powder into powder, sieving the powder by a 150-mesh sieve, heating the powder to 69 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature at 56 ℃, controlling the stirring rotation speed at 190r/min, scattering isocyanate after stirring for 34 minutes, continuously stirring for 36 minutes, pouring deionized water, cleaning for three times, and drying to obtain modified ore powder, wherein the ratio of the rubber powder, the nano manganese oxide, the coal ash and the deionized water of the rubber material is controlled at 3.6: and uniformly mixing the rubber powder, the nano manganese oxide, the fly ash and the deionized water, then raising the temperature to 54 ℃, controlling the stirring rotation speed at 270r/min, stirring for 34 minutes, dewatering, cleaning and drying to obtain the rubber material.
A preparation method of ultrathin overlay modified asphalt comprises the following steps:
s1: heating asphalt to 172 ℃, controlling the stirring speed at 880r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 37 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 450r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1110r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
Referring to FIG. 1, example III
The embodiment provides ultrathin overlay modified asphalt, which comprises 80 parts of asphalt, 12 parts of mixed resin, 0.7 part of modified skatole, 1.3 parts of polyurethane, 1.5 parts of reinforcing fiber, 1.5 parts of ethylene-vinyl acetate copolymer, 1 part of modified mineral powder, 1 part of rubber material and 1 part of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber, the modified skatole comprises skatole powder and kieselguhr, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared from aluminum ore powder, isocyanate and ethanol solvent, the rubber material is prepared from rubber powder, nano manganese oxide, fly ash and deionized water, the asphalt is petroleum asphalt, the penetration degree of the asphalt is 300dmm, the ratio of the epoxy resin, the polyamide resin and the carboxyl-terminated liquid nitrile rubber in the mixed resin is 5: heating epoxy resin and polyamide resin to 130 ℃, controlling the rotating speed at 380r/min, stirring for 22 minutes, adding carboxyl-terminated liquid nitrile rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, performing microwave treatment for 7 minutes to obtain mixed resin, controlling the ratio of the smelly alkali powder to the diatomite in the modified smelly alkali to be 7:3, and preparing the modified smelly alkali: pouring the odorous alkali powder and the diatomite into a grinding machine, grinding the odorous alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting steam from the bottom of the powder for heating, controlling the temperature of the steam to be 115 ℃, pouring the steam into a drying machine for drying after 8 minutes, drying by blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified odorous alkali, wherein the ratio of basalt fiber, sodium hydroxide solution and iron ore powder in the reinforced fiber is controlled to be 5: grinding the aluminum ore powder into powder, sieving the powder by a 150-mesh sieve, heating the powder to 69 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature at 56 ℃, controlling the stirring rotation speed at 190r/min, scattering isocyanate after stirring for 34 minutes, continuously stirring for 36 minutes, pouring deionized water, cleaning for three times, and drying to obtain modified ore powder, wherein the ratio of the rubber powder, the nano manganese oxide, the fly ash and the deionized water of the rubber material is controlled at 3.6: and uniformly mixing the rubber powder, the nano manganese oxide, the fly ash and the deionized water, then raising the temperature to 54 ℃, controlling the stirring rotation speed at 270r/min, stirring for 34 minutes, dewatering, cleaning and drying to obtain the rubber material.
A preparation method of ultrathin overlay modified asphalt comprises the following steps:
s1: heating asphalt to 172 ℃, controlling the stirring speed at 880r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 37 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 450r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment is carried out for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1110r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
Referring to FIG. 1, example No. four
The embodiment provides an ultrathin overlay modified asphalt, which comprises 80 parts of asphalt, 14 parts of mixed resin, 0.7 part of modified skatole, 1.3 parts of polyurethane, 1 part of reinforcing fiber, 1 part of ethylene-vinyl acetate copolymer, 0.7 part of modified mineral powder, 0.7 part of rubber material and 0.6 part of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber, the modified skatole comprises skatole powder and kieselguhr, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared from aluminum ore powder, isocyanate and ethanol solvent, the rubber material is prepared from rubber powder, nano manganese oxide, fly ash and deionized water, the asphalt is petroleum asphalt, the penetration degree of the asphalt is 300dmm, the ratio of the epoxy resin, the polyamide resin and the carboxyl-terminated liquid nitrile rubber in the mixed resin is 5, and the epoxy resin is selected as a fixing material, and the preparation method of the mixed resin comprises the following steps: heating epoxy resin and polyamide resin to 130 ℃, controlling the rotating speed at 380r/min, stirring for 22 minutes, adding carboxyl-terminated liquid nitrile rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, performing microwave treatment for 7 minutes to obtain mixed resin, controlling the ratio of the smelly alkali powder to the diatomite in the modified smelly alkali to be 7:3, and preparing the modified smelly alkali: pouring the odorous alkali powder and the diatomite into a grinding machine, grinding the odorous alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting steam from the bottom of the powder for heating, controlling the temperature of the steam to be 115 ℃, pouring the steam into a drying machine for drying after 8 minutes, drying by blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified odorous alkali, wherein the ratio of basalt fiber, sodium hydroxide solution and iron ore powder in the reinforced fiber is controlled to be 5: grinding the aluminum ore powder into powder, sieving the powder by a 150-mesh sieve, heating the powder to 69 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature at 56 ℃, controlling the stirring rotation speed at 190r/min, scattering isocyanate after stirring for 34 minutes, continuously stirring for 36 minutes, pouring deionized water, cleaning for three times, and drying to obtain modified ore powder, wherein the ratio of the rubber powder, the nano manganese oxide, the coal ash and the deionized water of the rubber material is controlled at 3.6: and uniformly mixing the rubber powder, the nano manganese oxide, the fly ash and the deionized water, then raising the temperature to 54 ℃, controlling the stirring rotation speed at 270r/min, stirring for 34 minutes, dewatering, cleaning and drying to obtain the rubber material.
A preparation method of ultrathin overlay modified asphalt comprises the following steps:
s1: heating asphalt to 172 ℃, controlling the stirring speed at 880r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 37 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 450r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1110r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
Referring to FIG. 1, example V
The embodiment provides an ultrathin overlay modified asphalt, which comprises 80 parts of asphalt, 15 parts of mixed resin, 0.2 part of modified skatole, 0.8 part of polyurethane, 0.5 part of reinforcing fiber, 0.5 part of ethylene-vinyl acetate copolymer, 0.5 part of modified mineral powder, 1 part of rubber material and 1.5 parts of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber, the modified skatole comprises skatole powder and kieselguhr, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared by using aluminum ore powder, isocyanate and ethanol solvent, the rubber material is prepared by using rubber powder, nano manganese oxide, fly ash and deionized water, the asphalt is petroleum asphalt, the penetration degree of the asphalt is 300dmm, the ratio of the epoxy resin, the polyamide resin and the carboxyl-terminated liquid nitrile rubber in the mixed resin is 5, the polyamide resin and the carboxyl-terminated liquid nitrile rubber is selected as a fixing material, and the preparation method of the mixed resin comprises the following steps: heating epoxy resin and polyamide resin to 130 ℃, controlling the rotating speed at 380r/min, stirring for 22 minutes, adding carboxyl-terminated liquid nitrile rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, performing microwave treatment for 7 minutes to obtain mixed resin, controlling the ratio of the smelly alkali powder to the diatomite in the modified smelly alkali to be 7:3, and preparing the modified smelly alkali: pouring the odorous alkali powder and the diatomite into a grinding machine, grinding the odorous alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting steam from the bottom of the powder for heating, controlling the temperature of the steam to be 115 ℃, pouring the steam into a drying machine for drying after 8 minutes, drying by blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified odorous alkali, wherein the ratio of basalt fiber, sodium hydroxide solution and iron ore powder in the reinforced fiber is controlled to be 5: grinding the aluminum ore powder into powder, sieving the powder by a 150-mesh sieve, heating the powder to 69 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature at 56 ℃, controlling the stirring rotation speed at 190r/min, scattering isocyanate after stirring for 34 minutes, continuously stirring for 36 minutes, pouring deionized water, cleaning for three times, and drying to obtain modified ore powder, wherein the ratio of the rubber powder, the nano manganese oxide, the fly ash and the deionized water of the rubber material is controlled at 3.6: and uniformly mixing the rubber powder, the nano manganese oxide, the fly ash and the deionized water, then raising the temperature to 54 ℃, controlling the stirring rotation speed at 270r/min, stirring for 34 minutes, dewatering, cleaning and drying to obtain the rubber material.
A preparation method of ultrathin overlay modified asphalt comprises the following steps:
s1: heating asphalt to 172 ℃, controlling the stirring speed at 880r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 37 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 450r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment is carried out for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1110r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
Comparing the conventional ultra-thin overlay modified asphalt with the ultra-thin overlay modified asphalt prepared in examples one to five, the ultra-thin overlay modified asphalt prepared in examples one to five is as follows:
as can be seen from the above table, the ultra-thin overlay modified asphalt prepared by the invention has obviously improved tensile strength, void ratio and anti-rutting capability, and the second embodiment is the best embodiment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The ultrathin overlay modified asphalt is characterized by comprising 80 parts of asphalt, 10-15 parts of mixed resin, 0.2-0.9 part of modified skatole, 0.5-1.5 parts of polyurethane, 0.5-2.5 parts of reinforcing fiber, 0.5-3.5 parts of ethylene-vinyl acetate copolymer, 0.5-2.5 parts of modified mineral powder, 0.5-2.5 parts of rubber material and 0.5-1.5 parts of beet crushed slag, wherein the mixed resin comprises epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber, the modified skatole comprises skatole powder and diatomite, the reinforcing fiber comprises basalt fiber, sodium hydroxide solution and iron ore powder, the modified mineral powder is prepared by using aluminum, isocyanate and ethanol solvent, and the rubber material is prepared by using rubber powder, nano manganese oxide, fly ash and deionized water.
2. The ultra-thin overlay modified asphalt of claim 1, wherein said asphalt is one of petroleum asphalt and natural asphalt, and the penetration of said asphalt is between 30dmm and 500dmm.
3. The ultrathin overlay modified asphalt of claim 1, wherein the ratio of epoxy resin, polyamide resin and carboxyl-terminated liquid nitrile rubber in the mixed resin is 5.
4. The ultra-thin overlay modified asphalt of claim 1, wherein the preparation method of the mixed resin comprises the following steps: heating the epoxy resin and the polyamide resin to 125-135 ℃, controlling the rotating speed to be 320-420 r/min, stirring for 15-30 minutes, adding the carboxyl-terminated liquid nitrile-butadiene rubber, starting a microwave emitter, controlling the output power of the microwave emitter to be 1.5kW, controlling the microwave radiation power of the microwave emitter to be 1500W, controlling the frequency of the microwave emitter to be 2.45GHz, and performing microwave treatment for 5-10 minutes to obtain the mixed resin.
5. The ultrathin finishing modified asphalt of claim 1, wherein the proportion of the smelly alkali powder to the diatomite in the modified smelly alkali is controlled to be 7:3, and the preparation method of the modified smelly alkali comprises the following steps: pouring the smelly alkali powder and the diatomite into a grinding machine, grinding the smelly alkali powder and the diatomite by using the grinding machine until the powder passes through a 150-mesh sieve, injecting water vapor from the bottom of the powder for heating, controlling the temperature of the water vapor to be 105-135 ℃, pouring the water vapor into a drying machine for drying after 5-10 minutes, drying by adopting blowing, and grinding again until the powder passes through the 150-mesh sieve to obtain the modified smelly alkali.
6. The ultrathin overlay modified asphalt as claimed in claim 1, wherein the proportion of the reinforcing fiber containing basalt fiber, sodium hydroxide solution and iron ore powder is controlled to be 5.
7. The ultrathin overlay modified asphalt according to claim 1, characterized in that the ratio of the aluminum ore powder to the isocyanate to the ethanol solvent in the modified ore powder is controlled to be 3: grinding aluminum ore powder into powder, sieving the powder with a 150-mesh sieve, heating the powder to 65-75 ℃, adding the powder into an ethanol solvent, uniformly stirring, controlling the stirring temperature to be 45-65 ℃, controlling the stirring rotation speed to be 120-240 r/min, stirring for 30-45 minutes, then spreading isocyanate, continuously stirring for 30-45 minutes, pouring deionized water, cleaning for three times, and drying to obtain the modified ore powder.
8. The ultrathin overlay modified asphalt of claim 1, wherein the ratio of the rubber powder, the nano manganese oxide, the fly ash and the deionized water of the rubber material is controlled to be 3: mixing rubber powder, nano manganese oxide, fly ash and deionized water uniformly, raising the temperature to 45-65 ℃, controlling the stirring speed to 240-320 r/min, stirring for 30-45 minutes, dewatering, cleaning and drying to obtain the rubber material.
9. The ultra-thin overlay modified asphalt of claim 1, wherein the ultra-thin overlay modified asphalt is preferably 80 parts of asphalt, 11 parts of mixed resin, 0.8 parts of modified skatole, 1.2 parts of polyurethane, 1.5 parts of reinforcing fiber, 2.5 parts of ethylene-vinyl acetate copolymer, 1.5 parts of modified mineral powder, 1 part of rubber material and 0.5 parts of beet chips.
10. The preparation method of the ultrathin overlay modified asphalt is characterized by comprising the following steps of:
s1: heating the asphalt to 165-185 ℃, controlling the stirring speed at 840 r/min-920 r/min, adding the mixed resin, the ethylene-vinyl acetate copolymer and the rubber material, and continuously stirring for 30-45 minutes to obtain a mixture;
s2: adding the modified mineral powder, the polyurethane and the beet crushed slag into the mixture, reducing the rotating speed to 320-480 r/min, and stirring for 15 minutes to obtain a blend;
s3: adding the modified strong caustic soda into the blend, starting ultrasonic wave for treatment, and obtaining a semi-finished product after the ultrasonic wave treatment for 15 minutes;
s4: and pouring the reinforced fibers into the semi-finished product, increasing the stirring speed to 1040 r/min-1120 r/min, and stirring for 15 minutes to obtain the ultrathin overlay modified asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211196397.7A CN115505276A (en) | 2022-09-29 | 2022-09-29 | Ultrathin overlay modified asphalt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211196397.7A CN115505276A (en) | 2022-09-29 | 2022-09-29 | Ultrathin overlay modified asphalt and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115505276A true CN115505276A (en) | 2022-12-23 |
Family
ID=84509131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211196397.7A Pending CN115505276A (en) | 2022-09-29 | 2022-09-29 | Ultrathin overlay modified asphalt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115505276A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587320A (en) * | 2004-07-07 | 2005-03-02 | 西北师范大学 | Bentonite composition modified asphalt and its preparing method |
| CN106280503A (en) * | 2016-07-30 | 2017-01-04 | 山西晋投玄武岩开发有限公司 | A kind of basalt fibre Colophonium and preparation method thereof |
| CN108264268A (en) * | 2018-01-19 | 2018-07-10 | 长沙理工大学 | A kind of modified pitch Load materials and preparation method thereof |
| CN109627794A (en) * | 2018-12-10 | 2019-04-16 | 江苏东道交通科技集团有限公司 | A kind of rubber modified bitumen and preparation method thereof |
| CN110903665A (en) * | 2019-12-13 | 2020-03-24 | 西安建筑科技大学 | Double-component polyurethane modified asphalt and preparation method thereof |
| CN112723792A (en) * | 2021-02-27 | 2021-04-30 | 北京岭北筑路材料有限公司 | Modified asphalt mixture and preparation method thereof |
| CN112812577A (en) * | 2020-12-21 | 2021-05-18 | 徐州市融道路桥有限公司 | Anti-aging environment-friendly modified asphalt material and preparation method thereof |
-
2022
- 2022-09-29 CN CN202211196397.7A patent/CN115505276A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587320A (en) * | 2004-07-07 | 2005-03-02 | 西北师范大学 | Bentonite composition modified asphalt and its preparing method |
| CN106280503A (en) * | 2016-07-30 | 2017-01-04 | 山西晋投玄武岩开发有限公司 | A kind of basalt fibre Colophonium and preparation method thereof |
| CN108264268A (en) * | 2018-01-19 | 2018-07-10 | 长沙理工大学 | A kind of modified pitch Load materials and preparation method thereof |
| CN109627794A (en) * | 2018-12-10 | 2019-04-16 | 江苏东道交通科技集团有限公司 | A kind of rubber modified bitumen and preparation method thereof |
| CN110903665A (en) * | 2019-12-13 | 2020-03-24 | 西安建筑科技大学 | Double-component polyurethane modified asphalt and preparation method thereof |
| CN112812577A (en) * | 2020-12-21 | 2021-05-18 | 徐州市融道路桥有限公司 | Anti-aging environment-friendly modified asphalt material and preparation method thereof |
| CN112723792A (en) * | 2021-02-27 | 2021-04-30 | 北京岭北筑路材料有限公司 | Modified asphalt mixture and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马同江等, vol. 1, 农村读物出版社, pages: 186 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103787605B (en) | Modification method of rubber particles and modified rubber concrete | |
| CN113354334B (en) | Composite fiber anti-cracking agent | |
| CN115073097B (en) | High-strength recycled aggregate concrete and preparation method thereof | |
| CN116514458B (en) | Asphalt mixture and preparation method thereof | |
| CN108147728A (en) | A kind of rubber asphalt concrete and preparation method thereof | |
| CN115650639A (en) | Steel slag anti-sliding wearing layer asphalt mixture and preparation method thereof | |
| CN110342881A (en) | A kind of nano silica rubber regeneration concrete and preparation method thereof | |
| CN108383463A (en) | A kind of preparation method of high-strength insulation aerated bricks | |
| CN105621990A (en) | High-tenacity crack-resistant grouting cement mortar and preparing method thereof | |
| CN115505276A (en) | Ultrathin overlay modified asphalt and preparation method thereof | |
| CN114085059A (en) | Wood nanocellulose-nanometer cement modified grouting material for deep-ground engineering surrounding rock reinforcement and preparation method thereof | |
| CN112811873A (en) | Recycled aggregate concrete and preparation process thereof | |
| CN107244841A (en) | A kind of regeneration concrete and preparation method thereof | |
| CN114988831B (en) | Filling material prepared from tailing slurry, preparation and use methods | |
| CN113402181B (en) | Exquisite treatment process for building solid waste | |
| CN102491683A (en) | Method for preparing mineral cotton fiber and asphalt mixture for roads | |
| CN109265077A (en) | A kind of dense-graded asphalt concrete mixture and preparation method thereof | |
| CN114195535A (en) | Preparation method for producing refined mullite corundum high-temperature material at low carbon | |
| CN107868288A (en) | A kind of wear-resistant macromolecule material and preparation method thereof | |
| CN106927751A (en) | A kind of GHPC | |
| CN104560086A (en) | Preparation method for asphalt with high softening point | |
| CN110330274A (en) | A kind of preparation method of high-strength dry powder mortar | |
| CN113816699B (en) | Grouting material for repairing highway subgrade | |
| CN118006224A (en) | Epoxy resin crack pouring adhesive for repairing cement concrete cracks | |
| CN110003832A (en) | A kind of compound steel bonding glue of stretch-proof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20221223 |