The Role of Penetrator and Tack Coat in Asphalt Pavement Construction

For users of equipment, the amount of material used is the focus of every user. We should attach great importance to this link in the production process. The following is an analysis of the amount of emulsifier used by Gaoyuan manufacturers.
When emulsified asphalt equipment is emulsifying asphalt, the asphalt temperature is better controlled at above 130°C to have better fluidity; 2. The amount of emulsifier is generally 8-14‰ of emulsified asphalt, that is, 8-14kg per ton of emulsified asphalt (asphalt content is more than 50%), and the temperature is 60-70°C. The emulsifier should be used in the middle and upper limit of the production, 10 kg per ton of emulsified asphalt, or 20 kg per ton of water (asphalt content is 50%); the amount of BE-3 emulsifier is generally 18-25‰ of emulsified asphalt, that is, 18-25kg per ton of emulsified asphalt (asphalt content is more than 50%), and the emulsifier solution temperature is 60-70°C. The emulsifier should be used in the upper and middle limits in the first production to ensure successful production. Use 24 kg per ton of emulsified asphalt, or 48 kg per ton of water (asphalt content is 50%). After the production goes smoothly, the dosage can be reduced according to actual conditions.

Crack repair technology is to seal the cracks in the pavement to prevent water from penetrating into the pavement structure. It is an effective means to slow down the occurrence of pavement diseases and extend the service life of the pavement. Asphalt concrete pavement crack damage is divided into: fatigue cracks, block cracks, edge cracks, longitudinal cracks, reflective cracks and transverse cracks. Different types of cracks require different crack repair technologies.
Crack repair technology corresponds to the above crack repair materials and can be divided into three categories:
(1) Grouting – Grouting is the most commonly used crack repair method. Grouting refers to a preventive maintenance technology that uses professional equipment (grooving machines, grouting machines, etc.) and special materials (grouting glue) to repair cracks.
Grouting technology generally includes the steps of grooving, cleaning, and grouting. It is mainly used for dynamic cracks.
(2) Filling – Grouting refers to the method of directly filling the cracks with crack repair materials (or simply cleaning the cracks and then filling them) without grooving. Grouting is mainly used for non-dynamic cracks or sections of road that are not suitable for grooving. It is a more traditional crack repair method. (3) Sealing – Sealing is a new crack repair technology. It does not involve grooving or cleaning the cracks. Simply cleaning the crack surface is sufficient for construction.
Crack Repair Process
The mainstream pavement crack repair materials are heated sealants, room temperature sealants (polyurethane, polysulfide, silicone, etc.), and seam tape, which are also being gradually applied and promoted.

There are many types of emulsified bitumen, and PC-2 is one of them, which is a spray-type emulsified bitumen. It is used for spraying oil through the base layer of granular materials and health care spraying on semi-rigid base layers. There is also the PA-2 type, which has the same purpose as the PC-2 type. The difference is that the PC-2 type is a cation, while the PA-2 type is an anion.

Water is one of the raw materials of the modified asphalt storage tank, and it is distributed in various components of the modified asphalt storage tank equipment. According to the components where water is distributed, the anti-cold measures are explained one by one. The water tank of the modified asphalt storage tank, the water inside the water tank is released through the filter valve. Some instruments of the modified asphalt storage tank do not have a filter valve to save the cost of the equipment. The modified asphalt storage tank can only be drained by loosening the flange bolts at the bottom. The water pump of the modified asphalt storage tank mentioned here includes a hot water pump and a circulating water pump. This type of water pump for the modified asphalt storage tank generally uses a pipeline centrifugal pump. There is a sewage outlet at the bottom of the pipeline centrifugal pump. The modified asphalt storage tank pays attention to the sewage treatment of the sewage outlet at the bottom of the pump. The modified asphalt storage tank emulsion tank generally uses a cone bottom. However, in order to better process the modified asphalt storage tank coefficient, the inlet and outlet are usually not placed at the bottom of the modified asphalt storage tank. Emulsion (mostly water) will remain at the bottom of the tank, and this part of the residual liquid in the modified asphalt storage tank must be discharged through the filter valve at the bottom. Emulsion pump for modified asphalt storage tank There are basically two types of emulsion pumps for modified asphalt storage tank equipment on the market, gear pumps or centrifugal water pumps. Gear pumps can only discharge the liquid inside the pump through the connection flange of the pipeline. The centrifugal water pump for modified asphalt storage tanks uses its own sewage outlet for sewage treatment. The first four items of modified asphalt storage tanks with basic knowledge are basically discharged, and the modified asphalt storage tanks will focus on the latter types. Modified asphalt storage tank colloid mill There will also be residual emulsion or water inside the modified asphalt storage tank colloid mill. The gap between the stator and rotor of the colloid mill is within 1mm. If there is a little residual water in the modified asphalt storage tank, it will cause the accident of frozen modified asphalt storage tank. The residue in the colloid mill can be treated by loosening the connection bolts of the finished product pipeline.

With the rapid development of our country’s social development and the continuous development of economic and information technology, modern highway construction is also developing rapidly, and the requirements for ground structural materials are becoming higher and higher, and Asphalt concrete bonding raw materials are inseparable from modified asphalt equipment. So besides these influencing factors, what other reasons does the company have that people don’t understand? Let’s analyze it together.
There are some asphalt concrete equipment on the market, because they have not solved the problem of asphalt clogging before grinding, there are not enough preparation equipment and grinding equipment, the structure is unscientific, and the entire grinding process cannot achieve a certain particle size, resulting in modification. The product productivity of asphalt equipment is low and the product quality is unstable. It requires continuous grinding for a long time, creating problems. This will not only greatly increase energy consumption, increase costs, make product quality unstable, and affect the speed of highway construction.

In the cold winter, the following points should be noted when using bitumen melter equipment:

1. Keep warm: The bitumen melter equipment needs to be operated indoors or in a place with sunshade facilities, and ensure that the temperature of the bitumen melter and the surrounding environment is kept within an appropriate range.
2. Check the bitumen melting equipment: Before use, the bitumen melter should be checked, including whether the circuit, liquid circuit and other parts of the equipment are working properly, and whether the equipment has leakage, water leakage and other conditions.
3. Pay attention to safety: During operation, protective bitumen melter equipment should be worn to avoid direct contact with hot bitumen. At the same time, avoid overloading the bitumen melter to prevent equipment damage and safety accidents.
4. Control speed: Reasonably control the working speed of the bitumen melting equipment according to weather conditions and road conditions to avoid overheating of the equipment, which may cause the bitumen to flow too quickly or burn.
5. Storage conditions: When not in use, place the equipment in a dry, ventilated and moderately warm place, and ensure that the residue in the equipment is completely cleaned.

In the application, the asphalt spreader has intelligent asphalt spreading rate and low investment, low power consumption, low cost, high thermal efficiency. The asphalt spreader can reach the temperature required for construction in a short time. It is easy to use and move. It can be operated by one person. A set of electric heaters is a bit expensive. In the production process of the asphalt spreader, water, as a production material, needs to be heated from room temperature to about 55°C. The evaporation heat of the asphalt spreader is transferred to the drainage. It is found that after the emulsified asphalt is produced for 5 tons, the asphalt spreader is accompanied by a significant increase in the temperature of the cooling circulating water. The production water uses cooling circulating water, and the water basically does not need to be heated. It can save 1/2 of the fuel simply from the energy.

Asphalt mixing plant is one of the main equipment for producing asphalt concrete. It can mix asphalt, gravel, cement and other materials together in a certain proportion to obtain the products required for highway construction. In order to ensure its operating effect, the asphalt mixing station also needs to be powered on for trial operation before it is officially put into work.

Emulsified asphalt is made by hot melting asphalt, dispersing it in an aqueous solution containing an emulsifier in a fine particle state through mechanical action, forming an oil-in-water asphalt emulsion. In road construction and maintenance projects, emulsified asphalt can be used for road maintenance, bonding between road layers, bridge deck paving, permeable oil on cement-stabilized macadam foundation, slurry seal waterproof layer, etc. It has the advantages of cold construction, safety, environmental protection, resource conservation, energy conservation, extended construction season, and improved construction conditions. It plays a very important role in the construction and maintenance of municipal roads, especially in recent years, the improvement of the production level of emulsified asphalt has actively promoted the technological progress and promotion and application of emulsified asphalt. However, in the production and use of emulsified asphalt, undesirable phenomena such as crusting, flocculation, oil-water stratification, and agglomeration often occur, which brings unnecessary troubles to construction. To this end, the author conducted a large number of experimental studies from nine aspects, including emulsification equipment, emulsifier, base asphalt, pH value, temperature, storage temperature, mechanical action, freezing and melting, and long-term placement, and summarized the factors that affect the stability of emulsified asphalt. The analysis is as follows:

Cold asphalt patching compound is a special mixture used to repair damaged road surfaces. It is composed of modified asphalt, polymer additives, and selected aggregates, and can be applied at room temperature without heating. The core advantage of this material lies in its adhesion and compressive strength. It can quickly integrate with the original road surface in both wet and dry environments, effectively preventing crack propagation and water penetration. It is widely used in urban roads, community sidewalks, and parking lots.
Cold asphalt patching compound allows you to directly fill potholes by opening the bag, simply compact it, and then drive on it. It’s completely stable by the next day! The most surprising thing is that the surface color is very close to the original asphalt, making the repair almost invisible. Its particle distribution is very uniform, preventing loosening and falling off. Even with frequent vehicle traffic, it’s fine, readily handling minor damage – truly reassuring and convenient.
All-weather repair material: Cold patch material has a wide applicable temperature range, suitable for application in rain, snow, or sunshine; Low repair cost: Not limited by weather or the size and number of potholes, you can use as needed; Simple application: Can be applied using impact compaction, manual compaction, or tire rolling, depending on the road surface repair requirements; Excellent repair results: Repaired potholes are less prone to peeling or cracking, eliminating the need for repeated repairs; Cold asphalt patch material possesses excellent adhesion and self-leveling properties, quickly filling cracks and potholes, adapting to various weather conditions, and is especially suitable for emergency repairs and small-area renovations. Its core advantages are convenient application, rapid reopening to traffic, and long-term pressure resistance and crack resistance.

Classification analysis of emulsion bitumen equipment is used to heat-melt bitumen. According to the actual cutting effect of mechanical equipment, it is loosened into a solution with demulsifier in the form of tiny droplets to form oil-in-water asphalt. Industrial equipment for lotions. Emulsion bitumen equipment can be divided into three types: portable, transportable and mobile according to the equipment, layout and maneuverability of the equipment.

Some of the equipment of emulsified modified bitumen equipment are as follows. The specially made bitumen filter can effectively filter the residues and dirt in the high-temperature culture medium bitumen to avoid damage to the subsequent equipment. The emulsified modified bitumen equipment adopts a spiral plate type or a shell and tube heat exchanger to quickly heat the culture medium bitumen through high-temperature heat transfer oil to meet the needs of the production process. The emulsified modified bitumen equipment is heated in the storage tank to prevent the bitumen from aging due to long-term high-temperature heating and exposure to the air. The sulfate generated during the production process of the emulsified modified bitumen equipment is very limited, reducing air pollution.
The emulsified modified bitumen equipment sends the modified material manually poured into the dumping bin to the bitumen batching tank by wind or spiral. It can be equipped with a metering and calibration system. The emulsified modified bitumen equipment thickener is automatically or manually added. The emulsified modified bitumen equipment can be equipped with a metering and calibration system. Emulsified modified bitumen equipment transportation and metering and calibration system, the emulsified modified bitumen equipment adds the set bitumen amount to the batching tank through the frequency converter and computer interlock. The emulsified modified bitumen equipment and bitumen steam flowmeter use big brand products to ensure the preparation.

Contemporary roads and pavements have undergone many changes: traffic volume and driving frequency have increased significantly, the axle load of logistics trucks has continued to increase, one-way driving in separate lanes has been widely implemented, and regulations have further improved the anti-flow resistance of the ground, that is, the work of modified asphalt equipment under high temperatures ability;

As -20°C temperatures blanket northern China, an innovative practice integrating green materials and digital sensing is quietly reshaping highway maintenance in these areas. Industrial solid waste is being transformed into cold-resistant “smart patches,” which, combined with microchips embedded in the road surface, not only allow winter repairs to proceed smoothly but also mark a crucial step towards green and intelligent transportation infrastructure maintenance. This is not only a technological breakthrough but also a vivid illustration of the transformation of development methods.
It is understood that the core material used in this test is an environmentally friendly asphalt that “grows on solid waste.” Industrial solid waste such as fly ash and coal gangue account for 60%-65% of its raw materials. Through independently developed modification technology, it enables normal construction even in temperatures as low as -20°C.
“Traditional hot-mix asphalt requires temperatures of 130℃ to 160℃, while ordinary cold-mix asphalt basically stops working below 0℃. This new material breaks free from these temperature constraints,” explained on-site technicians. This not only solves the problem of road repair in cold regions during winter but also significantly reduces raw material costs—by 15%-20% compared to traditional materials, labor and energy costs are reduced by over 20%, and overall maintenance costs are reduced by approximately 20%-25%.
The repaired road surface can be opened to traffic 1-2 hours after compaction, reaches its design strength within 24 hours, and has a durability period of 3-5 years, three times that of ordinary cold-mix asphalt. This means that road “wounds” heal faster and more firmly, making repeated repairs a thing of the past.

Emulsion bitumen manchine is widely used in new technologies and new processes for preventive maintenance. Emulsion bitumen manchine is an emulsion at room temperature formed by dispersing asphalt into the water phase. It is a new material that is made of natural materials. It is different from traditional Compared with hot asphalt, it saves more than 50% of energy, saves 10%-20% of asphalt, and causes less pollution.

Slurry seal vehicle engineering is a key technology application in highway maintenance. The entire process encompasses multiple steps, including construction preparation, material mixing, and on-site operations, each of which impacts the final road surface quality. For content creators, an in-depth analysis of this technical process not only demonstrates professional expertise but also provides practical reference for industry professionals, helping users fully understand the engineering applications of slurry seal vehicles.
In the construction preparation phase, preliminary surveys and plan design are fundamental. The technical team conducts detailed inspections of the road sections to be constructed in Zhejiang Province in advance, collecting data on subgrade flatness, base layer strength, and existing pavement damage. They then develop a scientific construction plan based on local climate conditions and traffic volume. For example, given Zhejiang’s rainy climate, the plan pays special attention to the waterproofing properties of the materials and post-construction drainage design to ensure long-term road surface stability. Furthermore, the commissioning of construction equipment and the stockpiling of materials are crucial. Core components such as the metering system and mixing device of the slurry sealer require pre-calibration. Raw materials such as emulsified asphalt, aggregates, and water must be stocked in appropriate proportions to avoid delays due to supply issues.

Emulsified asphalt is to melt the asphalt and disperse it in a water solution containing a certain amount of emulsifier in the form of tiny droplets through the action of emulsifier and machinery to form an oil-in-water asphalt emulsion. This emulsion is in the form of dry liquid at room temperature. Modified emulsified asphalt refers to a modified asphalt mixed emulsion with certain characteristics prepared by blending, mixing and preparing it with emulsified asphalt as the base material and asphalt modification material as the external modification material under a certain process flow. This mixed emulsion is called modified emulsified asphalt.
The modified production process of emulsified asphalt can be divided into four categories:
1. Adding latex modifier after making emulsified asphalt, that is, emulsification first and then modification;
The production process is to grind the hot asphalt and emulsifier soap solution together through colloid mill to make ordinary emulsified asphalt, and then add the latex modifier to the emulsified asphalt through mechanical stirring to make modified emulsified asphalt. The advantage of this method is that it does not require high equipment, and the disadvantage is that it is suitable for latex modifiers.
2. The latex modifier is mixed into the emulsifier aqueous solution, and then it enters the colloid mill together with the asphalt to produce modified emulsified asphalt;
3. The latex modifier, emulsifier aqueous solution, and asphalt are put into the colloid mill at the same time to produce modified emulsified asphalt (the two methods 2 and 3 can be collectively referred to as emulsification and modification);
The modifier is mixed into the emulsifier soap solution, and then the “modified” soap solution and asphalt are put into the colloid mill together to make modified emulsified asphalt; or the modifier is not pre-added to the emulsifier soap solution, but is placed in a tank separately, and finally mixed with the emulsifier, acid, water, etc. in the pumping pipeline and then enters the colloid mill together with the hot asphalt.
The method of adding latex modifier to the soap tank has the advantage that it is exactly the same as the process of producing ordinary emulsified asphalt, and no changes are required to the production equipment; the disadvantage is that when using this method to produce modified emulsified asphalt, the metering of the modifier is subject to certain restrictions, and the modifier latex is required to be able to withstand the pH value of the soap solution. The method of directly connecting the latex modifier to the colloid mill through a pipeline can overcome the above disadvantages, but it requires necessary improvements to the ordinary emulsified asphalt equipment before it can be used for the production of modified emulsified asphalt.
4. Emulsify the modified asphalt to produce emulsified modified asphalt.
The ready-made modified asphalt is heated to a certain temperature, becomes a flowing state, and then enters the colloid mill together with the soap solution to make emulsified modified asphalt. In the entire asphalt production process, due to the high viscosity characteristics of the asphalt itself and the high temperature environment required for production, various high-performance pumps and valves play a vital role in the asphalt transportation process.

To ensure good operation of asphalt melting equipment and extend its service life, regular maintenance and repairs are required. The following are specific maintenance and repair steps:
First, various parts of the equipment, including heating elements, pipes, valves, etc., need to be inspected regularly to make sure they are not worn or damaged. If any problems are found, they should be repaired or replaced immediately.

All kinds of base layers have the problem of strength formation and growth (Emerson). The strength is gradually generated during the curing process, and the internal structure will become more and more dense. The test shows that when the semi-rigid base layer is sprayed with penetration oil before the cement (material: powdered water-hardening inorganic cementitious material) has not yet hardened, the penetration depth is deep; with the increase of age and strength, the penetration effect of the penetration oil is getting worse and worse.
At the same time, timely spreading of penetration oil has a good retention effect on the moisture in the base layer, preventing the evaporation of moisture, ensuring the formation of the strength of the base layer, and the surface of the base layer is not easy to loosen. The penetration oil also protects the semi-rigid base layer from cracking due to exposure to the sun. Furthermore, since the base layer is no longer covered and watered for curing, the temperature inside the base layer is high, which is conducive to the growth of strength.

Asphalt mixture is a general term for a mixture composed of aggregate and asphalt binder. Based on material composition and structure, it is categorized as continuously graded and discontinuously graded mixtures. Based on aggregate gradation composition and void ratio, it is categorized as densely graded, semi-open graded, and open graded mixtures. Based on nominal maximum particle size, asphalt mixtures can be classified as extra-coarse (nominal maximum particle size greater than 31.5mm), coarse (nominal maximum particle size equal to or greater than 26.5mm), medium (nominal maximum particle size 16mm or 19mm), fine (nominal maximum particle size 9.5mm or 13.2mm), and sand (nominal maximum particle size less than 9.5mm). Based on the manufacturing process, asphalt mixtures can be classified as hot-mix asphalt, cold-mix asphalt, and recycled asphalt.

Modified emulsified asphalt equipment consists of four parts: a production unit, an additive feeding device, a heating unit, and a finished product tank. Our modified emulsified asphalt equipment also uses two heating methods, which we will explain below.
Generally, the water heating methods for modified emulsified asphalt equipment are mainly coal-fired heating or heat transfer oil heat exchange. We rarely use electric heating. The former two each have their advantages and disadvantages. Coal-fired heating requires a dedicated person to add coal and constantly monitor the water temperature. Its advantage is that it does not require heat transfer oil pipeline connections. As for heat transfer oil heat exchange, it has a compact structure, stable heat exchange, and is easy to automate. Its disadvantage is that it requires a dedicated heat transfer oil circulation pipeline.
We will conclude our explanation of the heating methods for our modified emulsified asphalt equipment here. We hope this information is helpful. If you would like to know more about our products, please contact us. We will answer your questions and welcome your cooperation!

I. The Impact of Temperature on Asphalt Laying
Temperature is a crucial parameter in asphalt laying. Generally, the laying temperature should be between 5-35 degrees Celsius to ensure surface quality. If the temperature is too low, the following problems will occur:
1. Asphalt will not flow easily. At low temperatures, the asphalt will solidify and become difficult to flow, affecting the uniformity of the laying process.
2. Reduced construction quality. The asphalt surface will be rough, leading to cracks and potholes, which will affect road use.
3. Increased waste. Lower temperatures increase the hardness of the asphalt, making construction more difficult, increasing the amount of asphalt needed, and raising construction costs.
II. How low is “too low”?
So, how cold is considered “too cold”? Actually, the specific value for “too low” depends on different situations. Generally, the following are some common situations:
1. The temperature of the asphalt mixture should be between 120-165 degrees Celsius. If the temperature is below this range, the fluidity of the mixture will decrease, increasing the difficulty of construction.
2. The construction temperature for asphalt pavement should be between 10-30 degrees Celsius. If the temperature is below this range, the asphalt will harden, making it difficult to lay properly and easily causing pavement cracking.
Therefore, the specific temperature will vary depending on the specific asphalt paving situation. If you need to pave asphalt, please consult a professional construction company in advance and understand the local temperature conditions.

Asphalt anti-sticking release agent is a product used in the construction of hot asphalt mixture to solve the asphalt anti-sticking problem. It is used to replace diesel and vegetable oil! There are all kinds of things about the effect of asphalt anti-sticking release agent. How to use asphalt anti-sticking release agent?
Before use, stir the release agent evenly, spray or apply the original liquid evenly on the surface of construction equipment such as rubber-wheeled rollers, transport carriages, paver hoppers, ironing plates, etc.; or add water to the roller water tank after dilution, stir evenly and spray automatically for use.
When preparing to start construction, when the roller tires are cool or the temperature is low, you should first apply the roller tires with the release agent original liquid, and then start rolling. At the beginning, you need to apply more release agent. After the temperature of the tires rises, you can apply it normally or less. If you use intermittent spraying of release agent, you should spray more frequently at the beginning of construction.
When adding water, we recommend a ratio of 10-15 times. It will be better to use 10 times the water ratio. If you think the cost is high and want to add more water, it is also possible, but try to use less than 15 times the water ratio. If it is modified asphalt, it is recommended to use less than 8 times, and 7 times the water ratio is recommended.

Each F1 track must be paved with three layers of asphalt, middle and lower, of which the lowest layer is 10 cm coarse asphalt concrete bearing layer, its flatness is less than 8 mm; In the middle is a 4 cm medium grained asphalt concrete bond layer, its flatness is less than 5 mm; The top layer uses 4 cm modified asphalt mixture as the surface wear layer, and the flatness is less than 2 mm.

The paved F1 track cannot have more than 3 points per kilometer of flatness detection, which is much higher than the highway.

Asphalt is widely used in road construction, primarily for paving. Its advantages include the following:
Good adhesion: It bonds firmly with aggregate, tightly binding aggregate particles together to form a stable pavement structure that effectively resists damage from vehicle loads and natural factors.
Good waterproofing: Asphalt is impermeable, preventing rainwater from penetrating the pavement structure, protecting the roadbed and base layer from water erosion, and extending the service life of the road.
High smoothness: The paved road surface has good smoothness, providing a smooth driving surface for vehicles, reducing bumps and vibrations during driving, and improving driving comfort.
-Excellent skid resistance: Through the appropriate selection of aggregates and mix design, asphalt pavements can achieve excellent skid resistance, ensuring sufficient friction for vehicles in both wet and dry conditions, ensuring safe driving.
Easy to repair: Local damage is easy to repair, and can be repaired using hot or cold patching methods. The repaired pavement adheres well to the original surface and can be quickly restored to service. Convenient Construction: Asphalt pavement construction is relatively simple and can be quickly paved using mechanical equipment such as pavers. Traffic can be reopened relatively quickly after construction, minimizing impact on traffic.
Good Noise Reduction: Compared to cement concrete pavement, asphalt pavement effectively absorbs vehicle noise, reducing traffic noise pollution and improving the surrounding environment.

1 Common diseases of asphalt pavement
There are nine phenomena of early damage to asphalt pavement: rutting, cracks, and potholes. These diseases are the most common and serious, and are one of the common quality problems of highway projects.
1.1 Rutting
Rutting refers to the longitudinal strip grooves on the road surface along the wheel tracks, with a depth of more than 1.5cm. Rutting is a strip groove formed by the accumulation of permanent deformation of the road surface under the repeated action of vehicle load. Rutting reduces the smoothness of the road surface. When the rutting reaches a certain depth, due to the accumulation of water in the rutting, it is easy for cars to slide and cause traffic accidents. The main reasons for rutting are unreasonable design and serious overloading of vehicles.
1.2 Cracks
There are three main forms of cracks: longitudinal cracks, transverse cracks and mesh cracks. When cracks occur in asphalt pavement, water seepage occurs, which harms the surface layer and base layer.
1.3 Potholes
Potholes are common early diseases of asphalt pavement, which refer to the road surface being damaged into potholes with a depth of more than 2cm and an area of ??more than 0.04㎡. The main reason for the formation of potholes is that the oil used in vehicle repair or motor vehicles seeps into the road surface, polluting the asphalt mixture and causing it to loosen. The pits are gradually formed by driving and rolling.

1. There are generally three ways to heat emulsified bitumen plant: gas heating, heat transfer oil heating and open flame heating. The first is the gas heating method of emulsified bitumen plant. The gas heating method of emulsified bitumen plant requires the use of the fire pipe to transport the high-temperature smoke generated by high-temperature combustion through the fire pipe.
2. The heat transfer oil heating method of emulsified bitumen plant mainly uses heat transfer oil as a medium for heating. The heat transfer oil heating method has extremely high requirements for fuel. The fuel must be fully burned and the product must be transferred to the heat transfer oil after sufficient heat is transferred to the heat transfer oil pump for heating.
3. The open flame heating method of emulsified bitumen plant is the most direct and convenient heating method. Whether in terms of convenient transportation or coal consumption, the open flame heating method is the fastest choice, simple operation, sufficient fuel, structural design, and labor intensity are relatively reasonable.

As we all know, emulsified bitumen is a single-component black viscous liquid that can combine the roadbed and the pavement to improve the performance and service life of the road. So what problems should be paid attention to when using emulsified bitumen? Let’s follow the editor of Sinoroader Group, an emulsified bitumen manufacturer, to learn about it.

As a manufacturer with many years of experience in emulsified bitumen construction, Sinoroader Group believes that everyone needs to pay attention to the following 2 points when using it: