CN113622258A - Construction method for plastic track playground - Google Patents
Construction method for plastic track playground Download PDFInfo
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- CN113622258A CN113622258A CN202110955713.3A CN202110955713A CN113622258A CN 113622258 A CN113622258 A CN 113622258A CN 202110955713 A CN202110955713 A CN 202110955713A CN 113622258 A CN113622258 A CN 113622258A
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- 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
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
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Abstract
The application relates to the field of playground construction, in particular to a construction method of a plastic track playground. A construction method of a plastic track playground comprises the following steps: step 1): cleaning a construction area; step 2): backfilling stone chips in the construction area to form a stone chip leveling layer; step 3): backfilling a 280-grade gravel cushion layer with the thickness of 320mm, and compacting; step 4): paving a 185-plus-210 mm thick cement stone chip layer, wherein the cement content is 4-6%, and forming a water stable layer; step 5): spraying emulsified asphalt to form a first bonding layer; step 6): laying medium-grained asphalt concrete of 37-43 mm; step 7): spraying emulsified asphalt to form a second bonding layer; step 8): paving fine-grain asphalt concrete with the thickness of 28-33 mm; step 9): paving a surface layer material according to the field. The preparation method has the advantages of improving the field flatness and durability.
Description
Technical Field
The application relates to the field of playground construction, in particular to a construction method of a plastic track playground.
Background
With the increasing awareness of people on body building, the requirements for the construction of sports facilities are continuously improved, and the plastic cement sports field, especially the plastic cement sports field, is widely used in the construction of the sports field because the plastic cement sports field can be used on any platform in any season.
In the related art, the playground is generally constructed by sequentially arranging a surface layer of a synthetic material, 30 thick and thin asphalt concrete, 50 thick medium particle stone asphalt concrete, 250-.
In the playground manufactured by using the related technology, because the gravels between the layers are in direct contact, some gravels can be loosened in the use of the playground for a long time, so that the playground is easy to bulge and damage, needs to be maintained frequently, and needs to be reworked in the whole playground under severe conditions.
Disclosure of Invention
In order to improve the flatness and the durability of a field, the application provides a construction method of a plastic track playground.
The application provides a plastic course playground construction method which adopts the following technical scheme:
a construction method of a plastic track playground comprises the following steps:
step 1): selecting a site according to site design standards, planning a construction area, and cleaning the construction area;
step 2): backfilling stone chips in the construction area, and compacting and leveling, wherein the compaction coefficient is more than or equal to 90 percent, so as to form a stone chip leveling layer;
step 3): backfilling a 280-grade gravel cushion layer with the thickness of 320mm, and compacting;
step 4): paving a 185-plus-210 mm thick cement stone chip layer, wherein the compaction coefficient is more than or equal to 90 percent, the cement content is 4-6 percent, and a water stable layer is formed;
step 5): spraying emulsified asphalt to form a first bonding layer;
step 6): paving 37-43mm medium-grain asphalt concrete, wherein the particle size of the broken stone is less than or equal to 25;
step 7): spraying emulsified asphalt to form a second bonding layer;
step 8): paving 28-33mm thick fine-grain asphalt concrete, wherein the particle size of the broken stone is less than or equal to 12, and the compaction coefficient is more than or equal to 90;
step 9): paving a surface layer material according to a field;
the emulsified asphalt is PC-3 type.
Through adopting above-mentioned technical scheme, the water stable layer has certain intensity and rigidity, can make the road bed reach roughness and the compactedness of certain degree, makes the basic unit more firm. The first bonding layer that sets up is connected the water stabilization layer with medium grain formula asphalt concrete, and the second bonding layer that sets up couples together medium grain formula asphalt concrete and fine grain formula asphalt concrete, utilizes the good adhesion of emulsified asphalt to make and has better combination between each layer, has alleviated the problem that the rubble pressurized shifted. Meanwhile, the emulsified asphalt has good waterproof capability, so that the damage of rainwater to concrete and asphalt caused by long-term soaking in rainy days is relieved, and the flatness and the durability of a field are improved.
Preferably, before the step 2), the following pretreatment steps are further included:
step a): pouring 155-165mm thick reinforced concrete roof slabs in the construction area;
step b): paving a C20 fine stone concrete slope-finding layer; if the structure is found to be sloping, the step is not needed;
step c): paving 20-thick cement mortar, and compacting and leveling;
step d): laying a waterproof layer;
step e): laying an isolation layer;
step f): laying a 40-thick C20 fine-stone concrete protective layer, and then carrying out subsequent operation of laying the stone chip leveling layer.
By adopting the technical scheme, the stability of the base layer is further improved by the pretreatment step, and subsequent operations such as leveling are facilitated; the waterproof layer and the isolation layer are arranged, so that the influence of water on cement mortar, fine aggregate concrete slope-finding layers and the like can be effectively reduced, the flatness of the field is improved, and the durability is prolonged.
Preferably, the emulsified asphalt is modified emulsified asphalt, and the modified emulsified asphalt comprises the following raw materials in parts by weight: 150-195 parts of asphalt, 65-115 parts of water, 1.2-4.5 parts of octadecyl trimethyl ammonium chloride, 1.8-3.6 parts of dioctadecyl dimethyl ammonium chloride, 0.8-2.0 parts of secondary alcohol polyoxyethylene ether and 0.6-1.3 parts of stabilizer.
By adopting the technical scheme, under the combined action of the octadecyl trimethyl ammonium chloride, the dioctadecyl dimethyl ammonium chloride and the secondary alcohol polyoxyethylene ether, the influence of the non-ionic surfactant on the viscosity of the asphalt is relieved, so that the emulsified asphalt has good fluidity and ductility when in use. Meanwhile, the secondary alcohol polyoxyethylene ether is cooperatively matched with the octadecyl trimethyl ammonium chloride and the dioctadecyl dimethyl ammonium chloride, so that the emulsifying capacity of the octadecyl trimethyl ammonium chloride, the octadecyl trimethyl ammonium chloride and the dioctadecyl dimethyl ammonium chloride is improved, and the generated emulsified asphalt has better stability.
Utilize modified emulsified asphalt to be connected between layer for whole structure is more stable, also can further alleviate the condition that the rubble pressurized shifted under long-time use, has improved the roughness and the durable degree in place.
Preferably, the modified emulsified asphalt also comprises 1.2-2.0 parts by weight of nano silicon dioxide.
By adopting the technical scheme, under the common coordination of the nano silicon dioxide, the octadecyl trimethyl ammonium chloride and the dioctadecyl dimethyl ammonium chloride, a thermodynamic equilibrium state is achieved, so that the stability of the emulsified asphalt is improved. And the molecular structure of the nano silicon dioxide is a three-dimensional chain structure, a special network structure can be formed, and octadecyl trimethyl ammonium chloride and dioctadecyl dimethyl ammonium chloride are tightly combined with the nano silicon dioxide, so that the performances of various substances can be fully exerted, and the stability of the emulsified asphalt is further improved.
Preferably, the stabilizer is carboxyethyl cellulose.
By adopting the technical scheme, the hydroxyethyl cellulose has good self viscosity advantage, when the viscosity is increased, the speed of thermal motion is reduced, so that the probability of collision and aggregation among particles is correspondingly reduced, and the stability of the emulsified asphalt is improved.
Preferably, the stabilizer is hydroxyethyl cellulose and ferric chloride, and the weight ratio of the hydroxyethyl cellulose to the ferric chloride is 1: (0.2-0.5).
By adopting the technical scheme, under the condition that ferric chloride and hydroxyethyl cellulose are matched in a specific proportion, the thickening effects of the ferric chloride and the hydroxyethyl cellulose are improved and supplement each other. The hydroxyethyl cellulose is used for agglomerating particles, but the size is difficult to control, the use of the ferric chloride can relieve flocculation or precipitation caused by larger emulsion particles, and the particle size division is influenced by changing the acting force among asphalt particles, so that the stability of the emulsified asphalt is improved.
Preferably, the preparation method of the modified emulsified asphalt comprises the following steps:
step 01): heating water to 70-85 ℃, pouring the stabilizer in parts by weight, and stirring until the stabilizer is dissolved to obtain a primary mixed solution;
step 02): standing the primary mixed solution to 65-68 ℃, adding the octadecyl trimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride and secondary alcohol polyoxyethylene ether in parts by weight, and uniformly mixing to obtain a soap solution for later use;
step 03): heating the asphalt to 150-165 ℃;
step 04): pouring the soap solution into a colloid mill, starting the colloid mill, pouring the asphalt in parts by weight into the soap solution, and emulsifying for 35-40min to obtain a finished product.
By adopting the technical scheme, the emulsified asphalt is generated by means of emulsification before modification, and the process is simple and has good effect. Through the specific raw material adding sequence, the raw materials are fully combined, so that the generated emulsified asphalt has better stability.
Preferably, in the step 04), after the asphalt is poured, 1.2 to 2.0 parts by weight of nano silicon dioxide is poured into the colloid mill.
By adopting the technical scheme, the nano silicon dioxide is added in the specific steps, so that the nano silicon dioxide can better react with amino, the influence of the nano silicon dioxide on the emulsified asphalt is fully exerted, and the emulsified asphalt has better stability.
In summary, the present application has the following beneficial effects:
1. the water stabilization layer has certain strength and rigidity, so that the roadbed can reach certain flatness and compactness, and the base layer is firmer. The first bonding layer that sets up is connected the water stabilization layer with medium grain formula asphalt concrete, and the second bonding layer that sets up couples together medium grain formula asphalt concrete and fine grain formula asphalt concrete, utilizes the good adhesion of emulsified asphalt to make has better combination between each layer, has alleviated the problem that the rubble pressurized shifted, improves place roughness and durability.
2. Under the combined action of octadecyl trimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride and secondary alcohol polyoxyethylene ether, the influence of the non-ionic surfactant on the viscosity of the asphalt is relieved, so that the formed emulsified asphalt has good fluidity and ductility when in use. Meanwhile, the secondary alcohol polyoxyethylene ether is cooperatively matched with the octadecyl trimethyl ammonium chloride and the dioctadecyl dimethyl ammonium chloride, so that the emulsifying capacity of the octadecyl trimethyl ammonium chloride, the octadecyl trimethyl ammonium chloride and the dioctadecyl dimethyl ammonium chloride is improved, and the generated emulsified asphalt has better stability.
Detailed Description
The present application will be described in further detail with reference to examples.
The information on the source of the raw materials used in the following examples and comparative examples is detailed in Table 1.
TABLE 1
| Raw materials | Model number | Source information |
| Asphalt | Modified asphalt | Longxin substance Mao Co Ltd in Feng nan region of Tang mountain City |
| Octadecyl trimethyl ammonium chloride | Superior product | Biological family of Jinan Yun BaihuiTech Ltd |
| Dioctadecyl dimethyl ammonium chloride | Industrial grade | Jinan Hui Jingchuan commercial Co Ltd |
| Secondary alcohol polyoxyethylene ether | Superior product | Shandonghao Shuihai chemical Co Ltd |
| Hydroxyethyl cellulose | Premium grade product, good number 0 | Shijiazhuang, Ruixin cellulose Co., Ltd |
| Lignosulfonic acid calcium salt | / | Jinan Ming Qi chemical Co Ltd |
Examples
Example 1
A construction method of a plastic track playground comprises the following steps:
step 1): and selecting a site according to site design standards, planning a construction area, and cleaning the construction area.
Step 2): backfilling stone chips into the construction area, carrying out layered static pressure, and compacting and leveling, wherein the compaction coefficient is not less than 90%, and in the embodiment, the compaction coefficient is 95%; forming a stone chip leveling layer.
Step 3): backfilling a 280-grade gravel cushion layer with the thickness of 320mm, and compacting; and a crushed stone blind ditch with the grain diameter less than or equal to 30 grades is arranged, and a blind pipe is arranged in the blind ditch. In this example, a 300mm thick gravel cushion was backfilled with a 30-grade particle size.
Step 4): paving a 185-plus-210 mm thick cement stone chip layer, wherein the compaction coefficient is more than or equal to 90 percent, and the cement content is 4-6 percent to form a water stable layer. In this example, a 200mm thick layer of cement and stone chips was laid with a compaction factor of 95% and 5% cement.
Step 5): and spraying emulsified asphalt (PC-3) to form a first bonding layer.
Step 6): paving 37-43mm medium-grain asphalt concrete by using a paver, wherein the particle size of the broken stone is less than or equal to 25. In this example, 40mm medium-sized asphalt concrete (AC-16C) was laid, and the crushed stone had a particle size of 20.
Step 7): emulsified asphalt (PC-3) is sprayed to form a second bonding layer.
Step 8): paving fine-grain asphalt concrete with the thickness of 28-33mm by using a paver, wherein the particle size of the broken stone is less than or equal to 12, and the compaction coefficient is more than or equal to 90. In this example, fine-grained asphalt concrete (AC-10C) of 30mm thickness was laid, the crushed stone particle size was 10, and the compaction factor was 95%.
Step 9): paving a surface layer material according to the field.
Wherein the emulsified asphalt is commercially available emulsified asphalt.
Example 2
The construction method of the plastic runway playground is different from the embodiment 1 in that after the construction area is cleaned in the step 1), the construction method further comprises the following pretreatment steps:
step a): 155-165mm thick reinforced concrete roof panels are poured in the construction area, and the roof panels are processed by adopting a mechanical raw stock grinding and flattening construction process. In this embodiment, a 160mn thick reinforced concrete roof panel is poured.
Step b): a C20 fine-stone concrete slope finding layer is paved, the thinnest part is 20%, the slope is not less than 0.5%, and in the embodiment, the slope is 2%. When the slope thickness exceeds 50, the lower part is filled with light ceramsite concrete with the strength grade LC5.0, and then a 30-thick fine stone concrete surface layer is made. When the structure is found to be sloping, the step b) can be directly omitted.
Step c): and paving 20-thick cement mortar, and compacting and leveling.
Step d): and laying 3 or 4 thick self-adhesive polymer modified asphalt waterproof coiled materials to form a waterproof layer. In this embodiment, 3 a thick is selected.
Step e): laying a polyethylene film isolating layer for 1 path to form the isolating layer.
Step f): laying a 40-thick C20 fine-stone concrete protective layer, and then carrying out the subsequent operation of laying a stone chip leveling layer in the step 2).
Example 3
The difference between the construction method of the plastic track playground and the embodiment 1 is that the emulsified asphalt is modified emulsified asphalt, and the modified emulsified asphalt comprises the following raw materials: 150kg of asphalt, 65kg of water, 3.2kg of octadecyl trimethyl ammonium chloride, 3.6kg of dioctadecyl dimethyl ammonium chloride, 0.8kg of secondary alcohol polyoxyethylene ether and 1.3kg of stabilizer.
Wherein the stabilizer is calcium chloride.
The preparation method of the modified emulsified asphalt comprises the following steps:
step 01): heating water to 70 ℃, pouring calcium chloride, and stirring at a rotating speed of 48r/min until the calcium chloride is dissolved to obtain a primary mixed solution;
step 02): standing the primary mixed solution to 65 ℃, adding octadecyl trimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride and secondary alcohol polyoxyethylene ether, and stirring for 5min at the rotating speed of 52r/min to obtain a soap solution for later use;
step 03): heating the asphalt to 150 ℃;
step 04): pouring the soap solution into a colloid mill, starting the colloid mill, adjusting the rotating speed to 5000rpm, slowly pouring the asphalt into the soap solution, and emulsifying for 40min to obtain the finished product.
Example 4
A construction method of a plastic track playground, which is different from the embodiment 3,
the modified emulsified asphalt comprises the following raw materials: 178kg of bitumen, 80kg of water, 1.2kg of octadecyl trimethyl ammonium chloride, 2.6kg of dioctadecyl dimethyl ammonium chloride, 2.0kg of secondary alcohol polyoxyethylene ether and 0.8kg of stabilizer.
Wherein the stabilizer is ammonium chloride.
Heating water to 85 ℃ in the step 01), standing the primary mixed liquid to 68 ℃ in the step 02), heating asphalt to 158 ℃ in the step 03), and emulsifying for 37min in the step 04).
Example 5
A construction method of a plastic track playground, which is different from the embodiment 3,
the modified emulsified asphalt comprises the following raw materials: 195kg bitumen, 115kg water, 4.5kg octadecyl trimethyl ammonium chloride, 1.8kg dioctadecyl dimethyl ammonium chloride, 1.5kg secondary alcohol polyoxyethylene ether and 0.6kg stabilizer.
Wherein the stabilizer is magnesium chloride.
Heating water to 76 ℃ in the step 01), standing the primary mixed liquid to 66 ℃ in the step 02), heating asphalt to 165 ℃ in the step 03), and emulsifying for 35min in the step 04).
The parameters of the steps, the selection of the raw materials and the amounts used in examples 3 to 5 are summarized in Table 2.
TABLE 2
Examples 6 to 8
A construction method of a plastic track playground is different from the embodiment 5 in that in the step 04), after asphalt is poured, nano silicon dioxide is poured into a colloid mill and is emulsified together. The specific amounts of nanosilica are referred to in table 3.
TABLE 3
| Example 6 | Example 7 | Example 8 | |
| Input amount (kg) | 1.2 | 1.6 | 2 |
Example 9
A construction method of a plastic track playground is different from the embodiment 5 in that hydroxyethyl cellulose is selected as a stabilizer.
Examples 10 to 11
A construction method of a plastic track playground is different from that of the embodiment 5 in that hydroxyethyl cellulose and ferric chloride are selected as stabilizing agents, and the dosage and the weight ratio of the hydroxyethyl cellulose to the ferric chloride refer to a table 4.
TABLE 4
Example 12
A construction method of a plastic track playground is different from that of the embodiment 8 in that the stabilizer is 0.40kg of hydroxyethyl cellulose and 0.20kg of ferric chloride.
Example 13
A construction method of a plastic track playground is different from that of the embodiment 5 in that octadecyl trimethyl ammonium chloride is replaced by equal amount of calcium lignosulphonate.
Example 14
A construction method of a plastic track playground, which is different from the embodiment 5 in that dioctadecyl dimethyl ammonium chloride is replaced by the same amount of calcium lignosulphonate.
Example 15
A construction method of a plastic track playground is different from that of the embodiment 5 in that secondary alcohol polyoxyethylene ether is replaced by equivalent calcium lignosulfonate.
Example 16
A construction method of a plastic track playground is different from the embodiment 5 in that the input amount of octadecyl trimethyl ammonium chloride is 0.8kg, the input amount of dioctadecyl dimethyl ammonium chloride is 1.4kg, and the input amount of secondary alcohol polyoxyethylene ether is 5.6 kg.
Performance test
1. High-temperature stability: the emulsified asphalt and commercially available emulsified asphalt of examples 3 to 16 were tested according to JTG/T0606-2011 "asphalt softening point test (Ring and ball method").
2. External force resistance: the emulsified asphalt of examples 3 to 16 and the commercially available emulsified asphalt were tested according to T0604-2011 asphalt penetration test. (25 ℃, 100g, 5s)
3. Low-temperature stability: the emulsified asphalt of examples 3 to 16 and the commercially available emulsified asphalt were tested according to T0605-2011 "asphalt ductility test". (5 ℃ C., 5cm/min)
The assay data for runs 1-3 are detailed in Table 5
TABLE 5
As shown by comparing the test data of examples 3 to 5 with those of examples 13 to 16 and the commercially available emulsified asphalts in Table 5, the emulsified asphalts obtained in examples 3 to 5 have a softening point higher than those of the commercially available emulsified asphalts and those of examples 13 to 16, indicating that the emulsified asphalts obtained in examples 3 to 5 have a better stability against high temperatures. The penetration of examples 3 to 5 was smaller than that of the commercially available emulsified asphalt and examples 13 to 16, indicating that the emulsified asphalt obtained in examples 3 to 5 had increased hardness and increased resistance to external force. The ductility of examples 3 to 5 at 5 ℃ was lower than that of the commercially available emulsified asphalt and examples 13 to 16, indicating that the emulsified asphalt obtained in examples 3 to 5 had a higher hardness and a better resistance at low temperatures.
Under the combined action of octadecyl trimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride and secondary alcohol polyoxyethylene ether, the prepared emulsified asphalt has good stability at low temperature and high temperature.
As shown by comparing the test data of examples 6 to 8 with that of the commercially available emulsified asphalt in Table 5, the emulsified asphalt obtained in examples 6 to 8 has a higher softening point than that of the commercially available emulsified asphalt, and the emulsified asphalt obtained in examples 6 to 8 has a lower needle penetration point and lower ductility than those of the commercially available emulsified asphalt, indicating that the emulsified asphalt obtained in examples 6 to 8 has good stability.
This is because the microstructure of the nano-silica is approximately spherical, and unsaturated residual bonds and hydroxyl groups in different bonding states exist on the surface of the particles. The ionic groups of octadecyl trimethyl ammonium chloride and dioctadecyl dimethyl ammonium chloride dispersed in water are mainly-NH-or-NH with positive charge2The hydroxyl on a proper amount of silicon dioxide reacts with partial amino, at the moment, the molecular structure has-NH-which can carry positive charges and-COOH which can carry negative charges, the charge action among molecules is complex, a thermodynamic equilibrium state is reached, and the stability of the emulsified asphalt is enhanced.
The emulsified asphalt prepared in example 9 has a higher softening point and a lower ductility and penetration than those of commercially available emulsified asphalt, which indicates that the stability of emulsified asphalt can be effectively improved by using a specific stabilizer.
The softening point of the emulsified asphalt prepared in examples 10-11 is higher than that of example 9, and the ductility and the needle point are lower than those of example 9, which shows that the emulsified asphalt is beneficial to improving the stability of the emulsified asphalt under the co-operation of ferric chloride and hydroxyethyl cellulose.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. A construction method of a plastic track playground is characterized by comprising the following steps:
step 1): selecting a site according to site design standards, planning a construction area, and cleaning the construction area;
step 2): backfilling stone chips in the construction area, and compacting and leveling, wherein the compaction coefficient is more than or equal to 90 percent, so as to form a stone chip leveling layer;
step 3): backfilling a 280-grade gravel cushion layer with the thickness of 320mm, and compacting;
step 4): paving a 185-plus-210 mm thick cement stone chip layer, wherein the compaction coefficient is more than or equal to 90 percent, the cement content is 4-6 percent, and a water stable layer is formed;
step 5): spraying emulsified asphalt to form a first bonding layer;
step 6): paving 37-43mm medium-grain asphalt concrete, wherein the particle size of the broken stone is less than or equal to 25;
step 7): spraying emulsified asphalt to form a second bonding layer;
step 8): paving 28-33mm thick fine-grain asphalt concrete, wherein the particle size of the broken stone is less than or equal to 12, and the compaction coefficient is more than or equal to 90;
step 9): paving a surface layer material according to a field;
the emulsified asphalt is PC-3 type.
2. The plastic runway playground construction method of claim 1, characterized in that: before the step 2), the method also comprises the following pretreatment steps:
step a): pouring 155-165mm thick reinforced concrete roof slabs in the construction area;
step b): paving a C20 fine stone concrete slope-finding layer; if the structure is found to be sloping, the step is not needed;
step c): paving 20-thick cement mortar, and compacting and leveling;
step d): laying a waterproof layer;
step e): laying an isolation layer;
step f): laying a 40-thick C20 fine-stone concrete protective layer, and then carrying out subsequent operation of laying the stone chip leveling layer.
3. The plastic runway playground construction method of claim 1, characterized in that: the emulsified asphalt is modified emulsified asphalt, and the modified emulsified asphalt comprises the following raw materials in parts by weight: 150-195 parts of asphalt, 65-115 parts of water, 1.2-4.5 parts of octadecyl trimethyl ammonium chloride, 1.8-3.6 parts of dioctadecyl dimethyl ammonium chloride, 0.8-2.0 parts of secondary alcohol polyoxyethylene ether and 0.6-1.3 parts of stabilizer.
4. The plastic runway playground construction method of claim 3, characterized in that: the modified emulsified asphalt also comprises 1.2-2.0 parts by weight of nano silicon dioxide.
5. The plastic runway playground construction method of claim 3, characterized in that: the stabilizer is carboxyethyl cellulose.
6. The plastic runway playground construction method of claim 3, characterized in that: the stabilizer is hydroxyethyl cellulose and ferric chloride, and the weight ratio of the hydroxyethyl cellulose to the ferric chloride is 1: (0.2-0.5).
7. The plastic runway playground construction method of any one of claims 3-6, characterized in that: the preparation method of the modified emulsified asphalt comprises the following steps:
step 01): heating water to 70-85 ℃, pouring the stabilizer in parts by weight, and stirring until the stabilizer is dissolved to obtain a primary mixed solution;
step 02): standing the primary mixed solution to 65-68 ℃, adding the octadecyl trimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride and secondary alcohol polyoxyethylene ether in parts by weight, and uniformly mixing to obtain a soap solution for later use;
step 03): heating the asphalt to 150-165 ℃;
step 04): pouring the soap solution into a colloid mill, starting the colloid mill, pouring the asphalt in parts by weight into the soap solution, and emulsifying for 35-40min to obtain a finished product.
8. The plastic runway playground construction method of claim 7, characterized in that: and in the step 04), after the asphalt is poured, 1.2 to 2.0 parts by weight of nano silicon dioxide is poured into the colloid mill.
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