CN107473623A - A kind of ground surface material of wide transition temperature area and preparation method thereof - Google Patents
A kind of ground surface material of wide transition temperature area and preparation method thereof Download PDFInfo
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- CN107473623A CN107473623A CN201710868065.1A CN201710868065A CN107473623A CN 107473623 A CN107473623 A CN 107473623A CN 201710868065 A CN201710868065 A CN 201710868065A CN 107473623 A CN107473623 A CN 107473623A
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0071—Phase-change materials, e.g. latent heat storage materials used in concrete compositions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of ground surface material of wide transition temperature area and preparation method thereof.The ground surface material includes shaping phase-change material and pitch, and the mass ratio of the shaping phase-change material and pitch is 1：5 20, the shaping phase-change material is mixed by the tetradecane/carrier, pentadecane/carrier, hexadecane/carrier, heptadecane/carrier, octadecane/carrier, nonadecane/carrier, eicosane/carrier and polyethylene glycol/carrier, and mass ratio is 1:1:1‑3:1‑3:1‑3:1‑3:1:1.The present invention is by the way that the shaping phase-change material of different phase transition temperatures is mixed in pitch, adjust asphalt concrete pavement temperature, strengthen its adaptability to extraneous temperature change, effectively reduce large volume bituminous concrete internal temperature rise speed, delay peak value time of occurrence, reduce freezing thaw cycle and the influence too high or too low for temperature to concrete road surface performance, prevent or prevent bituminous concrete thermal crack(ing occur, improve the durability of material, extend its life-span.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of ground surface material of wide transition temperature area and its preparation side
Method.
Background technology
Phase-change thermal storage ground surface material can be stored when environment temperature drastically changes or discharge heat by its phase transition process
Can, road surface is kept the reasonable temperature of long period, so as to realize that low temperature mitigates road surface condensation, high temperature reduces thermostabilization disease
Evil, actively improves pavement disease caused by temperature.Phase-change material, which is mixed in pitch, can prepare the phase with self-regulated temp effect
Become heat accumulation asphalt pavement material, the temperature of bituminous paving can be effectively reduced in summer, and reduce its heating rate, it is high to shorten road surface
The warm activity duration, be advantageous to alleviate urban heat land effect.But current phase-change thermal storage road surface still suffers from and changes adaptability to temperature
Difference, influenceed by season and Changes in weather big, poor durability, be easy to crack, short life the problems such as.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of ground surface material and its system of wide transition temperature area
Preparation Method, enhancing ground surface material effectively reduce large volume bituminous concrete internal temperature rise speed to the adaptability of extraneous temperature change
Rate, delay peak value time of occurrence, reduce the ground surface material freeze thaw circulate number, and it is too high or too low for temperature to pitch
The influence of concrete road surface performance, extend the life-span of asphalt concrete pavement.
To solve prior art problem, the technical scheme that the present invention takes is：
A kind of ground surface material of wide transition temperature area, including shaping phase-change material and pitch, the shaping phase-change material and drip
Blue or green mass ratio is 1：5-20, the shaping phase-change material is by the tetradecane/carrier, pentadecane/carrier, hexadecane/carrier, 17
Alkane/carrier, octadecane/carrier, nonadecane/carrier, eicosane/carrier and polyethylene glycol/carrier mix, and mass ratio is
1:1:1-3:1-3:1-3:1-3:1:1。
It is that the carrier is mesoporous SBA-15 as improved.
It is that the molecular weight of the polyethylene glycol is 2000 as improved.
The preparation method of the ground surface material of above-mentioned wide transition temperature area, comprises the following steps：Step 1, the tetradecane, 15 are weighed
Alkane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol, carrier, pitch；Step 2, by the tetradecane, 15
It is uniform that alkane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol are separately added into heating stirring in absolute ethyl alcohol
Afterwards, carrier is added, 4h is stirred at 65 DEG C, then 24h is dried at 80 DEG C, obtains the tetradecane/carrier, pentadecane/carrier, ten
Six alkane/carrier, heptadecane/carrier, octadecane/carrier, nonadecane/carrier, eicosane/carrier, polyethylene glycol/carrier；Step
3, by the tetradecane/carrier, pentadecane/carrier, hexadecane/carrier, heptadecane/carrier, octadecane/carrier, nonadecane/carrier,
Eicosane/carrier, polyethylene glycol/carrier are sufficiently mixed the wide transition temperature area composite shape-setting phase transformation for preparing that transition temperature area is 5-50 DEG C
Material；Step 4, pitch is heated to flow regime, adds wide transition temperature area composite shape-setting phase-change material while stirring, stirred
2h, the ground surface material of wide transition temperature area is obtained after cooling.
That the speed stirred in step 2 is 200-600rpm as improved, the tetradecane, pentadecane, hexadecane,
Heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol and absolute ethyl alcohol, the mass ratio of carrier are (1-2.5):2000.
Beneficial effect：
Compared with prior art, the present invention utilizes the tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, two
Ten alkane, polyethylene glycol (molecular weight 2000) etc. are core, and mesoporous SBA-15 is carrier, prepares different phase transition temperatures
Shaping phase-change material, wide transition temperature area composite shape-setting phase-change material is then mixed to get by a certain percentage, and mixed pitch
In, for adjusting asphalt concrete pavement temperature, strengthen its adaptability to extraneous temperature change, effectively reduce large volume pitch
Inside concrete temperature rise rate, delays peak value time of occurrence, reduces freeze thaw circulate and too high or too low for temperature to pitch
The influence of concrete road surface performance, prevent or prevent bituminous concrete thermal crack(ing occur, improve the durability of material, extend its longevity
Life.
Embodiment
The present invention is further described in detail below by specific embodiment.
Embodiment 1
Phase-change material carrier mesoporous SBA-15 passes through commercially available acquisition.
Embodiment 1
Respectively by the 0.1g tetradecanes, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol
(molecular weight 2000) adds heating stirring in 100ml absolute ethyl alcohols, prepare the 1g/L tetradecanes, pentadecane, hexadecane, heptadecane,
45mg SBA-15, are then separately added into by octadecane, nonadecane, eicosane, polyethylene glycol (molecular weight 2000) ethanol solution
State in phase-change material core material solution, mixture is stirred into 4h at 65 DEG C, dry 24h at a temperature of 80 DEG C afterwards, determined
The shape phase-change material tetradecane/SBA-15, pentadecane/SBA-15, hexadecane/SBA-15, heptadecane/SBA-15, octadecane/SBA-
15th, nonadecane/SBA-15, eicosane/SBA-15, polyethylene glycol/SBA-15.
Preparation phase alternating temperature is sufficiently mixed after the wide transition temperature area composite shape-setting phase-change material of above-mentioned different temperatures is respectively taken into 1g
Area is 5~50 DEG C of wide transition temperature area composite shape-setting phase-change material；50g pitches are heated to flow regime simultaneously, stirred
The above-mentioned wide transition temperature area composite shape-setting phase-change materials of 5g are added in journey, quickly stir 2h, transition temperature area is obtained after cooling as 5~50
DEG C wide transition temperature area ground surface material.
Embodiment 2
Respectively by the 0.08g phase-change material cores tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, 20
Alkane, polyethylene glycol (molecular weight 2000) add heating stirring in 100ml absolute ethyl alcohols, prepare the 1g/L tetradecanes, pentadecane, 16
Alkane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol (molecular weight 2000) ethanol solution, then by 45mg SBA-15
It is separately added into above-mentioned phase-change material core material solution, mixture is stirred into 4h at 65 DEG C, is dried afterwards at a temperature of 80 DEG C
24h, obtain the shaping phase-change material tetradecane/SBA-15, pentadecane/SBA-15, hexadecane/SBA-15, heptadecane/SBA-15,
Octadecane/SBA-15, nonadecane/SBA-15, eicosane/SBA-15, polyethylene glycol/SBA-15.
By the wide transition temperature area composite shape-setting phase-change material tetradecane/SBA-15 1g of above-mentioned different temperatures, pentadecane/
SBA-151g, hexadecane/SBA-15 2g, heptadecane/SBA-15 2g, octadecane/SBA-15 2g, nonadecane/SBA-15 2g,
Eicosane/SBA-15 1g, polyethylene glycol/SBA-15 1g are sufficiently mixed the wide transition temperature area for preparing that transition temperature area is 5~50 DEG C
Composite shape-setting phase-change material；50g pitches are heated to flow regime simultaneously, the above-mentioned wide transition temperature areas of 8g are added in whipping process
Composite shape-setting phase-change material, 2h is quickly stirred, the road surface material for the wide transition temperature area that transition temperature area is 5~50 DEG C is obtained after cooling
Material.
Embodiment 3
Respectively by the 0.06g phase-change material cores tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, 20
Alkane, polyethylene glycol (molecular weight 2000) add heating stirring in 100ml absolute ethyl alcohols, prepare the 1g/L tetradecanes, pentadecane, 16
Alkane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol (molecular weight 2000) ethanol solution, then by 45mg SBA-15
It is separately added into above-mentioned phase-change material core material solution, mixture is stirred into 4h at 65 DEG C, is dried afterwards at a temperature of 80 DEG C
24h, obtain the shaping phase-change material tetradecane/SBA-15, pentadecane/SBA-15, hexadecane/SBA-15, heptadecane/SBA-15,
Octadecane/SBA-15, nonadecane/SBA-15, eicosane/SBA-15, polyethylene glycol/SBA-15.
Above-mentioned shaping phase-change material is respectively taken to be sufficiently mixed after 1g and prepares the wide transition temperature area that transition temperature area is 5~50 DEG C and answers
Close shaping phase-change material；50g pitches are heated to flow regime simultaneously, the above-mentioned wide transition temperature areas of 10g are added in whipping process
Composite shape-setting phase-change material, 2h is quickly stirred, the road surface material for the wide transition temperature area that transition temperature area is 5~50 DEG C is obtained after cooling
Material.
Comparative example
0.1g phase-change material cores nonadecane is added into heating stirring in 100ml absolute ethyl alcohols, prepares 1g/L nonadecane second
Alcoholic solution, then 45mg SBA-15 are added in above-mentioned phase-change material core material solution, mixture is stirred into 4h at 65 DEG C, it
24h is dried at a temperature of 80 DEG C afterwards, obtains shaping phase-change material nonadecane/SBA-15.
50g pitches are heated to flow regime, 5g shaping phase-change materials nonadecane/SBA-15 is added in whipping process,
Quick stirring 2h, obtains the phase transformation ground surface material that phase alternating temperature is 32 DEG C after cooling.
The phase transition temperature of the phase transformation ground surface material prepared in comparative example is 32 DEG C, therefore, when ambient temperature is relatively low in the winter time
Performance phase-changing and temperature-regulating is will be unable to act on, and New-type phase change heat accumulation asphalt pavement material transition temperature area prepared by the embodiment of the present invention 1
For 5~50 DEG C, its transition temperature area is wide, strong to weather and poikilothermism, can be played in Various Seasonal and different geographical
Phase-changing and temperature-regulating acts on, and effectively reduces large volume bituminous concrete internal temperature rise speed, delays peak value time of occurrence, reduce freezing-
Thaw cycle and the influence too high or too low for temperature to asphalt concrete pavement performance, prevent or prevent bituminous concrete appearance
Thermal crack(ing, improve the durability of material, extend its life-span.
In addition, the invention is not restricted to above-mentioned embodiment, as long as in without departing from the scope of the present invention, can take various
Mode implements the present invention.
Claims (5)
- A kind of 1. ground surface material of wide transition temperature area, it is characterised in that including shaping phase-change material and pitch, the fixed phase change The mass ratio of material and pitch is 1：5-20, the shaping phase-change material by the tetradecane/carrier, pentadecane/carrier, hexadecane/ Carrier, heptadecane/carrier, octadecane/carrier, nonadecane/carrier, eicosane/carrier and polyethylene glycol/carrier mix, And mass ratio is 1:1:1-3:1-3:1-3:1-3:1:1.
- A kind of 2. ground surface material of wide transition temperature area according to claim 1, it is characterised in that the shaping phase-change material Carrier be mesoporous SBA-15.
- A kind of 3. ground surface material of wide transition temperature area according to claim 1, it is characterised in that point of the polyethylene glycol Son amount is 2000.
- 4. the preparation method of the ground surface material based on the wide transition temperature area described in claim 1, it is characterised in that including following step Suddenly：Step 1, weigh the tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol, carrier, Pitch；Step 2, the tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, polyethylene glycol are added respectively Enter after heating stirring is uniform in absolute ethyl alcohol, add carrier, 4h is stirred at 65 DEG C, then 24h is dried at 80 DEG C, obtain ten Four alkane/carrier, pentadecane/carrier, hexadecane/carrier, heptadecane/carrier, octadecane/carrier, nonadecane/carrier, eicosane/ Carrier, polyethylene glycol/carrier；Step 3, by the tetradecane/carrier, pentadecane/carrier, hexadecane/carrier, heptadecane/carrier, ten It is 5-50 DEG C that eight alkane/carrier, nonadecane/carrier, eicosane/carrier, polyethylene glycol/carrier, which are sufficiently mixed and prepare transition temperature area, Wide transition temperature area composite shape-setting phase-change material；Step 4, pitch is heated to flow regime, adds wide transition temperature area while stirring Composite shape-setting phase-change material, 2h is stirred, the ground surface material of wide transition temperature area is obtained after cooling.
- 5. the preparation method of the ground surface material of wide transition temperature area according to claim 4, it is characterised in that stirred in step 2 The speed mixed is 200-600rpm, the tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, eicosane, poly- Ethylene glycol and absolute ethyl alcohol, the mass ratio of carrier are (1-2.5):2000.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710868065.1A CN107473623A (en) | 2017-09-22 | 2017-09-22 | A kind of ground surface material of wide transition temperature area and preparation method thereof |
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| CN201710868065.1A CN107473623A (en) | 2017-09-22 | 2017-09-22 | A kind of ground surface material of wide transition temperature area and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752953A (en) * | 2018-06-05 | 2018-11-06 | 孙祎 | A kind of composite phase-change heat-storage asphalt pavement material and preparation method thereof |
| CN110510899A (en) * | 2019-09-03 | 2019-11-29 | 中南大学 | A kind of roadbed soil material for frozen earth roadbed protection |
| CN110872443A (en) * | 2018-08-30 | 2020-03-10 | 中国石油化工股份有限公司 | Environment-friendly phase-change heat-storage modified asphalt and preparation method thereof |
| CN112853863A (en) * | 2021-01-25 | 2021-05-28 | 中南大学 | Bridge deck temperature control method for preventing ice and snow |
| CN114940602A (en) * | 2022-04-08 | 2022-08-26 | 东南大学 | Self-curing multi-gradient temperature-control early-strength anti-cracking concrete and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333094A (en) * | 2008-07-29 | 2008-12-31 | 武汉理工大学 | Method for preparing phase change asphalt pavement material |
| CN101812286A (en) * | 2010-04-16 | 2010-08-25 | 北京大学 | Mesoporous material-based composite phase change heat storage material and preparation method thereof |
-
2017
- 2017-09-22 CN CN201710868065.1A patent/CN107473623A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333094A (en) * | 2008-07-29 | 2008-12-31 | 武汉理工大学 | Method for preparing phase change asphalt pavement material |
| CN101812286A (en) * | 2010-04-16 | 2010-08-25 | 北京大学 | Mesoporous material-based composite phase change heat storage material and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752953A (en) * | 2018-06-05 | 2018-11-06 | 孙祎 | A kind of composite phase-change heat-storage asphalt pavement material and preparation method thereof |
| CN110872443A (en) * | 2018-08-30 | 2020-03-10 | 中国石油化工股份有限公司 | Environment-friendly phase-change heat-storage modified asphalt and preparation method thereof |
| CN110872443B (en) * | 2018-08-30 | 2021-08-06 | 中国石油化工股份有限公司 | Environment-friendly phase-change heat-storage modified asphalt and preparation method thereof |
| CN110510899A (en) * | 2019-09-03 | 2019-11-29 | 中南大学 | A kind of roadbed soil material for frozen earth roadbed protection |
| CN112853863A (en) * | 2021-01-25 | 2021-05-28 | 中南大学 | Bridge deck temperature control method for preventing ice and snow |
| CN114940602A (en) * | 2022-04-08 | 2022-08-26 | 东南大学 | Self-curing multi-gradient temperature-control early-strength anti-cracking concrete and preparation method thereof |
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