CN111995433A - Multi-section ablation type solvent for restoring microstructure of cement pavement and use method thereof - Google Patents
Multi-section ablation type solvent for restoring microstructure of cement pavement and use method thereof Download PDFInfo
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- CN111995433A CN111995433A CN202010851584.9A CN202010851584A CN111995433A CN 111995433 A CN111995433 A CN 111995433A CN 202010851584 A CN202010851584 A CN 202010851584A CN 111995433 A CN111995433 A CN 111995433A
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- microstructure
- cement pavement
- restoring
- ablation
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/72—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone involving the removal of part of the materials of the treated articles, e.g. etching
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
- C04B41/5338—Etching
- C04B41/5353—Wet etching, e.g. with etchants dissolved in organic solvents
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Road Repair (AREA)
Abstract
The invention provides a multi-section ablation type solvent for restoring a microstructure of a cement pavement, which comprises the following components in parts by mass: 20-45 parts of corrosion inhibitor, 3-10 parts of adaptation agent and 5-14 parts of stabilizer; the corrosion inhibitor is a strong inorganic acid solution; the adaptation agent is one or the combination of more than two of calcium oxide, kaolin, starch and hydrogen peroxide; the stabilizer is one or the combination of more than two of calcium stearate, cadmium ricinoleate and rare earth stearate. The multi-section ablation solvent is used for recovering the microstructure of the cement pavement and improving the anti-skid property of the cement pavement under the condition of hardly influencing the pavement flatness.
Description
Technical Field
The invention relates to the field of pavement maintenance, in particular to a multi-section ablation type solvent for restoring the microstructure of a cement pavement and a using method thereof.
Background
In recent years, the total mileage of highway tunnels in China is increased year by year, and cement pavements with higher rigidity and better durability are basically adopted in part of the highway tunnels, long tunnels and extra-long tunnels. Under complex use environments (temperature, humidity, acidity and alkalinity, and the like), the abrasion of the cement pavement is difficult to avoid, and the anti-skid performance of the pavement is gradually reduced. Therefore, certain measures are required to restore the microstructure of the cement pavement, improve the skid resistance of the pavement and improve the driving safety.
In China, the anti-skid structural form of the cement pavement basically gives priority to the grooving texture, and the anti-skid performance is provided by the grooving. Although finish milling can also recover a certain coefficient of friction, this technique is difficult to produce saw cuts with a certain depth, has limited recovery of the anti-skid structure of the road surface, and the traditional milling method is labor intensive and costly to maintain.
Disclosure of Invention
In order to overcome the problems of limited restoration of the anti-skid structure of the pavement, high labor consumption, high maintenance cost and the like of the traditional milling method, the invention provides a multi-section ablation solvent which plays an ablation role on the cement pavement and is used for restoring the microstructure of the cement pavement and improving the anti-skid performance of the cement pavement under the condition of hardly influencing the pavement flatness.
The invention aims to provide a multi-joint ablation solvent for restoring the microstructure of a cement pavement;
the invention also aims to provide a preparation method of the multi-section ablation solvent for restoring the microstructure of the cement pavement;
still another object of the present invention is to provide a method for using the multi-joint ablation-type solvent for restoring the microstructure of a cement pavement.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multisection ablation type solvent for restoring the microstructure of a cement pavement comprises the following components in parts by mass: 20-45 parts of corrosion inhibitor, 3-10 parts of adaptation agent and 5-14 parts of stabilizer;
the corrosion inhibitor is a strong inorganic acid solution;
the adaptation agent is one or the combination of more than two of calcium oxide, kaolin, starch and hydrogen peroxide;
the stabilizer is one or the combination of more than two of calcium stearate, cadmium ricinoleate and rare earth stearate.
Preferably, the strong inorganic acid solution is one or a combination of more than two of a sulfuric acid solution, a hydrochloric acid solution and a hydrofluoric acid solution.
Preferably, the mass concentration of the strong inorganic acid solution is 30 wt% -wt 70%.
The adaptation agent is used for promoting the compatibility of each component and ensuring that each component can exist at the same time; the stabilizer is used for preventing the solvent from pyrolysis and light decomposition or reducing volatilization, and ensures that the solvent can be stored for a long time.
The multi-joint ablation solvent for restoring the microstructure of the cement pavement is prepared by the following steps:
s1, uniformly mixing an etching agent and an adaptive agent at the temperature of 20-40 ℃;
s2, dissolving the stabilizer in hot ethanol, adding the mixed solution into the mixed solvent prepared in the step S1, and uniformly mixing to obtain the multi-section ablation solvent for restoring the microstructure of the cement pavement.
The use method of the multi-section ablation solvent for restoring the microstructure of the cement pavement comprises the following steps: heating the multisection ablation type solvent for restoring the microstructure of the cement pavement to 60-80 ℃, and then spraying or rolling the multisection ablation type solvent on the cement pavement, wherein the dosage of the multisection ablation type solvent adopted by each square meter of the cement pavement is 0.8-1.3 liters, and the ablation time is 10-15 min.
Compared with the prior art, the invention has the following beneficial effects:
compared with the traditional milling method, the multi-section ablation type solvent has a remarkable effect of recovering the anti-skid performance of the cement pavement.
The use of the multi-section ablation solvent has little influence on the pavement evenness and greatly improves the transverse force coefficient.
The average manufacturing cost of the traditional milling method is 60 yuan/square meter, and the manufacturing cost of the multi-section ablation solvent is 20-35 yuan/square meter.
The multi-section corrosion-eliminating solvent is simple in preparation process, convenient to use, lower in toxicity and safer in construction process compared with other similar solvents.
Detailed Description
The present invention is further described with reference to the following examples, but the present invention is not limited to the scope of the examples, and any modifications or changes that can be easily made by those skilled in the art without departing from the technical solution of the present invention will fall within the scope of the claims of the present invention.
Example 1
Preparing a multi-section ablation type solvent for restoring the microstructure of the cement pavement according to the following components in parts by mass:
etching agent: 30 parts of sulfuric acid solution (with the mass concentration of 70 wt%);
an adaptation agent: 8 parts of calcium oxide (2 parts), kaolin (2 parts), starch (2 parts) and hydrogen peroxide (2 parts);
a stabilizer: 10 portions of calcium stearate (5 portions) and stearic acid rare earth (5 portions).
Uniformly mixing the corrosion inhibitor and the adaptive agent at the temperature of 20 ℃, and standing for 5 min;
dissolving a stabilizer in hot ethanol (40 ℃), wherein the mass ratio of the stabilizer to the ethanol is 3:1, adding the mixed solution into the mixed solvent prepared in the step I, mixing, stirring at a constant speed for 15min, uniformly mixing to obtain the multi-section ablation type solvent for restoring the microstructure of the cement pavement, and storing at normal temperature.
The prepared multi-section ablation solvent is used for restoring the microstructure of the cement pavement and is used according to the following steps:
the method comprises the steps of cleaning and washing a cement pavement maintenance section in advance, wherein a high-pressure water gun or a blower can be adopted;
secondly, after the cleaning operation is finished, heating the prepared multisection ablation type solvent to 60 ℃;
thirdly, spraying the heated multi-section ablation solvent (0.8-1.2 liters per square meter) on the cement pavement, wherein the ablation time is 10 min.
And (2) inspecting and accepting the cement road surface of the maintenance road section, wherein the structural depth (TD) of the cement road surface before treatment is less than the lower limit value of the standard requirement (0.7-1.1 mm), and the structural depth (TD) of the cement road surface after treatment is 0.83mm, so that the anti-skid property of the cement road surface is improved (meeting the current relevant standard requirement of the industry, namely the structural depth (TD) of the cement road surface of the maintenance road section is 0.7 mm-1.1 mm.), the before-construction average flatness IRI is 2.8m/km, the after-construction average flatness IRI is 3.0m/km, and the flatness of the road surface is hardly influenced.
Example 2
Preparing a multi-section ablation type solvent for restoring the microstructure of the cement pavement according to the following components in parts by mass:
etching agent: 40 parts of hydrochloric acid solution (the mass concentration is 35 wt%);
an adaptation agent: 5 parts of calcium oxide (1 part), kaolin (1 part), starch (1 part) and hydrogen peroxide (2 parts);
a stabilizer: 8 portions of calcium stearate (4 portions) and stearic acid rare earth (4 portions).
Uniformly mixing the corrosion inhibitor and the adaptive agent at 25 ℃, and standing for 5 min;
dissolving a stabilizer in hot ethanol (40 ℃), wherein the mass ratio of the stabilizer to the ethanol is 3:1, adding the mixed solution into the mixed solvent prepared in the step I, mixing, stirring at a constant speed for 15min, uniformly mixing to obtain the multi-section ablation type solvent for restoring the microstructure of the cement pavement, and storing at normal temperature.
The prepared multi-section ablation solvent is used for restoring the microstructure of the cement pavement and is used according to the following steps:
the method comprises the steps of cleaning and washing a cement pavement maintenance section in advance, wherein a high-pressure water gun or a blower can be adopted;
secondly, after the cleaning operation is finished, heating the prepared multisection ablation type solvent to 65 ℃;
thirdly, spraying the heated multisection ablation type solvent (0.8-1.2 liters per square meter) on the cement pavement, wherein the ablation time is 11 min.
And (2) inspecting and accepting the cement road surface of the maintenance road section, wherein the structural depth (TD) of the cement road surface before treatment is less than the lower limit value of the standard requirement (0.7-1.1 mm), and the structural depth (TD) of the cement road surface after treatment is 0.88mm, so that the anti-skid property of the cement road surface is improved (meeting the current relevant standard requirement of the industry, namely the structural depth (TD) of the cement road surface of the maintenance road section is 0.7 mm-1.1 mm.), the before-construction average flatness IRI is 3.1m/km, the after-construction average flatness IRI is 3.3m/km, and the flatness of the road surface is hardly influenced.
Example 3
Preparing a multi-section ablation type solvent for restoring the microstructure of the cement pavement according to the following components in parts by mass:
etching agent: 28 parts of sulfuric acid solution (with the mass concentration of 60 wt%);
an adaptation agent: 7 parts of calcium oxide (2 parts), kaolin (1 part), starch (2 parts) and hydrogen peroxide (2 parts);
a stabilizer: 6 parts of cadmium ricinoleate (3 parts) and rare earth stearate (3 parts).
Uniformly mixing the corrosion inhibitor and the adaptation agent at the temperature of 30 ℃, and standing for 5 min;
dissolving a stabilizer in hot ethanol (40 ℃), wherein the mass ratio of the stabilizer to the ethanol is 3:1, adding the mixed solution into the mixed solvent prepared in the step I, mixing, stirring at a constant speed for 15min, uniformly mixing to obtain the multi-section ablation type solvent for restoring the microstructure of the cement pavement, and storing at normal temperature.
The prepared multi-section ablation solvent is used for restoring the microstructure of the cement pavement and is used according to the following steps:
the method comprises the steps of cleaning and washing a cement pavement maintenance section in advance, wherein a high-pressure water gun or a blower can be adopted;
secondly, after the cleaning operation is finished, heating the prepared multisection ablation type solvent to 70 ℃;
thirdly, spraying the heated multisection ablation type solvent (0.8-1.2 liters per square meter) on the cement pavement, wherein the ablation time is 12 min.
And (2) inspecting and accepting the cement road surface of the maintenance road section, wherein the structural depth (TD) of the cement road surface before treatment is less than the lower limit value of the standard requirement (0.7-1.1 mm), and the structural depth (TD) of the cement road surface after treatment is 0.85mm, so that the anti-skid property of the cement road surface is improved (meeting the current relevant standard requirement of the industry, namely the structural depth (TD) of the cement road surface of the maintenance road section is 0.7 mm-1.1 mm.), the before-construction average flatness IRI is 2.9m/km, the after-construction average flatness IRI is 3.2m/km, and the flatness of the road surface is hardly influenced.
Example 4
Preparing a multi-section ablation type solvent for restoring the microstructure of the cement pavement according to the following components in parts by mass:
etching agent: 20 parts of hydrofluoric acid solution (with the mass concentration of 50 wt%);
an adaptation agent: 3 parts of calcium oxide (0.5 part), kaolin (1 part), starch (0.5 part) and hydrogen peroxide (1 part);
a stabilizer: 5 parts of calcium stearate (3 parts) and rare earth stearate (2 parts).
Uniformly mixing the corrosion inhibitor and the adaptive agent at 35 ℃, and standing for 5 min;
dissolving a stabilizer in hot ethanol (60 ℃), wherein the mass ratio of the stabilizer to the ethanol is 3:1, adding the mixed solution into the mixed solvent prepared in the step I, mixing, stirring at a constant speed for 15min, uniformly mixing to obtain the multi-section ablation type solvent for restoring the microstructure of the cement pavement, and storing at normal temperature.
The prepared multi-section ablation solvent is used for restoring the microstructure of the cement pavement and is used according to the following steps:
the method comprises the steps of cleaning and washing a cement pavement maintenance section in advance, wherein a high-pressure water gun or a blower can be adopted;
secondly, after the cleaning operation is finished, heating the prepared multisection ablation type solvent to 75 ℃;
thirdly, the heated multisection ablation type solvent is coated on the cement pavement in a rolling mode (0.9-1.3 liters per square meter), and the ablation time is 13 min.
And (2) inspecting and accepting the cement road surface of the maintenance road section, wherein the structural depth (TD) of the cement road surface before treatment is less than the lower limit value of the standard requirement (0.7-1.1 mm), and the structural depth (TD) of the cement road surface after treatment is 0.85mm, so that the anti-skid property of the cement road surface is improved (meeting the current relevant standard requirement of the industry, namely the structural depth (TD) of the cement road surface of the maintenance road section is 0.7 mm-1.1 mm.), the before-construction average flatness IRI is 3.1m/km, the after-construction average flatness IRI is 3.4m/km, and the flatness of the road surface is hardly influenced.
Example 5
Preparing a multi-section ablation type solvent for restoring the microstructure of the cement pavement according to the following components in parts by mass:
etching agent: 45 parts of hydrochloric acid solution (with the mass concentration of 30 wt%);
an adaptation agent: 10 parts of calcium oxide (2 parts), kaolin (3 parts), starch (2 parts) and hydrogen peroxide (3 parts);
a stabilizer: 14 portions of calcium stearate (7 portions) and rare earth stearate (7 portions).
Uniformly mixing the corrosion inhibitor and the adaptive agent at 40 ℃, and standing for 5 min;
dissolving a stabilizer in hot ethanol (60 ℃), wherein the mass ratio of the stabilizer to the ethanol is 3:1, adding the mixed solution into the mixed solvent prepared in the step I, mixing, stirring at a constant speed for 15min, uniformly mixing to obtain the multi-section ablation type solvent for restoring the microstructure of the cement pavement, and storing at normal temperature.
The prepared multi-section ablation solvent is used for restoring the microstructure of the cement pavement and is used according to the following steps:
the method comprises the steps of cleaning and washing a cement pavement maintenance section in advance, wherein a high-pressure water gun or a blower can be adopted;
secondly, after the cleaning operation is finished, heating the prepared multisection ablation type solvent to 80 ℃;
thirdly, the heated multisection ablation type solvent is coated on the cement pavement in a rolling mode (0.9-1.3 liters per square meter), and the ablation time is 15 min.
And (2) inspecting and accepting the cement road surface of the maintenance road section, wherein the structural depth (TD) of the cement road surface before treatment is less than the lower limit value of the standard requirement (0.7-1.1 mm), and the structural depth (TD) of the cement road surface after treatment is 0.87mm, so that the anti-skid property of the cement road surface is improved (meeting the current relevant standard requirement of the industry, namely the structural depth (TD) of the cement road surface of the maintenance road section is 0.7 mm-1.1 mm.), the before-construction average flatness IRI is 3.3m/km, the after-construction average flatness IRI is 3.6m/km, and the flatness of the road surface is hardly influenced.
Claims (6)
1. A multisection ablation type solvent for restoring the microstructure of a cement pavement is characterized by comprising the following components in parts by mass: 20-45 parts of corrosion inhibitor, 3-10 parts of adaptation agent and 5-14 parts of stabilizer;
the corrosion inhibitor is a strong inorganic acid solution;
the adaptation agent is one or the combination of more than two of calcium oxide, kaolin, starch and hydrogen peroxide;
the stabilizer is one or the combination of more than two of calcium stearate, cadmium ricinoleate and rare earth stearate.
2. The multi-joint ablation-type solvent for restoring the microstructure of the cement pavement according to claim 1, wherein the strong inorganic acid solution is one or a combination of two or more of a sulfuric acid solution, a hydrochloric acid solution and a hydrofluoric acid solution.
3. The multi-joint ablation type solvent for restoring the microstructure of a cement pavement according to claim 1, wherein the mass concentration of the strong inorganic acid solution is 30-70 wt%.
4. The multi-joint ablation solvent for restoring the microstructure of a cement pavement according to claim 1, which is prepared by a method comprising the following steps:
s1, uniformly mixing an etching agent and an adaptive agent at the temperature of 20-40 ℃;
s2, dissolving the stabilizer in hot ethanol, adding the mixed solution into the mixed solvent prepared in the step S1, and uniformly mixing to obtain the multi-section ablation solvent for restoring the microstructure of the cement pavement.
5. The use method of the multi-joint ablation solvent for restoring the microstructure of the cement pavement is characterized in that the multi-joint ablation solvent for restoring the microstructure of the cement pavement according to claim 1 is heated to 60-80 ℃, and then is sprayed or rolled on the cement pavement, and the ablation time is 10-15 min.
6. The method for using the multiple joints of the ablation-type solvent for restoring the microstructure of the cement pavement as recited in claim 5, wherein the multiple joints of the ablation-type solvent are used in an amount of 0.8 to 1.3 liters per square meter of the cement pavement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020106839523 | 2020-07-16 | ||
| CN202010683952 | 2020-07-16 |
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| CN111995433A true CN111995433A (en) | 2020-11-27 |
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| CN202010851584.9A Withdrawn CN111995433A (en) | 2020-07-16 | 2020-08-21 | Multi-section ablation type solvent for restoring microstructure of cement pavement and use method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699289A (en) * | 2005-05-10 | 2005-11-23 | 山东师范大学 | Anti-skid intensifier for smooth brick masonry surface and method for preparing same |
| CN101723633A (en) * | 2009-11-27 | 2010-06-09 | 长安大学 | Self-induced road surface micro-surfacing material and preparation method |
| CN105175011A (en) * | 2015-09-21 | 2015-12-23 | 陈卓杰 | Repairing method for concrete pavement |
| CN105860554A (en) * | 2016-04-21 | 2016-08-17 | 天津市公路工程总公司 | Quick-setting and antiskid fog sealing layer material and preparation method |
| EP3222780A1 (en) * | 2016-03-23 | 2017-09-27 | Holcim Technology Ltd. | Concrete pavement structure comprising a concrete base layer and an elastomer improved concrete wearing layer |
-
2020
- 2020-08-21 CN CN202010851584.9A patent/CN111995433A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699289A (en) * | 2005-05-10 | 2005-11-23 | 山东师范大学 | Anti-skid intensifier for smooth brick masonry surface and method for preparing same |
| CN101723633A (en) * | 2009-11-27 | 2010-06-09 | 长安大学 | Self-induced road surface micro-surfacing material and preparation method |
| CN105175011A (en) * | 2015-09-21 | 2015-12-23 | 陈卓杰 | Repairing method for concrete pavement |
| EP3222780A1 (en) * | 2016-03-23 | 2017-09-27 | Holcim Technology Ltd. | Concrete pavement structure comprising a concrete base layer and an elastomer improved concrete wearing layer |
| CN105860554A (en) * | 2016-04-21 | 2016-08-17 | 天津市公路工程总公司 | Quick-setting and antiskid fog sealing layer material and preparation method |
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Application publication date: 20201127 |