Application of asphalt melting equipment in road construction

The efficiency and quality of road maintenance are directly related to travel safety and regional development. In recent years, with the continuous growth of traffic volume and the increasing weight of vehicles, traditional pavement maintenance methods have become unable to meet the demands of modern construction. Slurry seal trucks, as highly efficient, environmentally friendly, and multifunctional pavement maintenance equipment, are emerging in the road construction industry with their unique advantages, becoming a valuable aid for maintenance workers.
The core advantages of slurry seal trucks lie in “simultaneous application” and “precise mixing ratio.” Traditional slurry seal application requires two steps: spraying tack coat and then spreading the slurry mixture. This not only increases the number of steps and time required, but can also affect interlayer bonding due to improper timing control. The slurry seal truck, with its advanced hydraulic control system, enables simultaneous spraying and spreading of tack coat and slurry mixture on the same machine, reducing application time by over 50%. This efficient construction capability is particularly important in hilly and mountainous terrain, effectively minimizing traffic disruptions and ensuring rapid road reopening.

The following details the process from four aspects: construction preparation, material selection, operation steps, and precautions.
I. Pre-construction Preparation
Site Survey: A comprehensive assessment of the damaged pavement is necessary to determine the width of cracks (e.g., narrow cracks <5mm, medium cracks 5-15mm, wide cracks >15mm), pothole depth (generally ≤10cm is shallow, >10cm is deep), and area range, thus determining the repair plan. For example, narrow cracks can be treated with crack filling, while potholes require layered filling.
Tools and Equipment Preparation: A cutting machine (for cutting crack edges), a high-pressure air compressor (for cleaning cracks), a blower (for removing dust), heating equipment (e.g., a hot melt kettle to heat the repair material to 160-180℃), paving tools (e.g., scraper, roller), and safety protective equipment (e.g., reflective vest, goggles) are required. **Environmental Conditions Check:** The construction temperature must be above 5℃. Construction is strictly prohibited in rainy weather or when the road surface is wet, otherwise it will affect the material’s adhesion. If construction is carried out in low-temperature environments (such as northern winters), low-temperature repair materials must be selected or antifreeze agents must be added.

Microsurfacing is a thin layer of overlay placed on old asphalt pavement and is a type of preventive maintenance process. The purpose of microsurfacing is road maintenance. After micro-surface paving, it can repair cracks in the original road surface, waterproof and beautify the road surface.
The construction method of micro surfacing is: using a micro surfacing paver to evenly spread modified emulsified asphalt, a certain grade of mineral materials, water and other additives on the road surface in a certain proportion.

Synchronous seal pavers are crucial equipment in road construction, and their daily maintenance directly impacts construction efficiency and equipment lifespan. Mastering these maintenance points is key to extending the equipment’s service life.
First, daily inspection and maintenance are essential. Before each operation, check tire pressure and for foreign objects in the tread. Replace tires immediately if bulges or cracks are found. Also, check engine oil, hydraulic oil, and coolant levels, adding as needed to prevent overheating and damage. Regularly lubricate chains and drive components to prevent excessive friction and jamming, which can affect the accuracy of the synchronous seal.

No matter the application of emulsified asphalt equipment or other related equipment, in the application of appropriate maintenance work, today we introduce professional technicians to do the following 3 points to effectively improve the utilization rate of asphalt equipment:
1. When the emulsified asphalt plant is out of use for a long time, the liquid in the pipeline and storage tank should be discharged, the lid should be sealed, kept clean, and all moving parts are lubricated. When it is used for the first time and disabled for a long time, the rust of the oil tank should be removed, and the water filter should be cleaned regularly.
2. When the outdoor temperature is lower than -5℃, the emulsified asphalt production equipment shall not store the product without insulation device, and it should be discharged in time to avoid freezing and demulsification of emulsified asphalt.
3. The gap between the stator and the rotor of the emulsified asphalt equipment should be checked regularly. When the machine cannot meet the smaller gap requirements, the stator and rotor should be replaced.

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

1. Observation: Pay attention to the dynamics of the road surface after milling (three to four days), and pave the milled and roughened road surface in time when paving conditions are met.
2. On-site mixing: During construction and production, a sealing slurry truck should be used for on-site mixing. Through the metering equipment of the sealing truck and on-site operation by a robot, it is ensured that emulsified asphalt, water, mineral materials, fillers, etc. can be mixed according to a certain proportion. , stir through the mixing box, and the paving thickness is not higher than the roughing depth.

Gravel Synchronized seal Trucks are essential road construction equipment. Regular maintenance and care are essential to ensure proper operation and extend their service life. This article provides a maintenance and care guide for Gravel Synchronized seal Trucks to help users manage their equipment correctly on a daily basis.
Cleaning and Lubrication:
Gravel Synchronized seal Trucks accumulate dust, sand, and other impurities during use, so regular cleaning is crucial. Use a high-pressure water jet or detergent to thoroughly clean the vehicle, especially the hydraulic system and feed mechanism.
Regularly check the hydraulic system fluid to ensure cleanliness and proper fill level. Replace the hydraulic fluid according to the manufacturer’s recommendations and regularly check the fluid viscosity and pressure.
Inspection and Repair:
Regularly inspect key components of the gravel truck, such as the hydraulic cylinder, conveyor belt, and vibrator. Ensure they are in good working condition and free of leaks, looseness, or wear.
Inspect the feed port and distribution mechanism to ensure even discharge and distribution of gravel. Repair or replace any damaged, clogged, or loose components. Check the vehicle’s tires and brake system to ensure they are in good condition. Replace tires as needed and adjust and maintain the brake system.
Regular Maintenance:
Develop a regular maintenance schedule based on the equipment manufacturer’s maintenance manual. This includes replacing filters, cleaning or replacing the air filter, and inspecting and adjusting the drive chain.
Regularly check the electrical system and instrument panel to ensure the accuracy and display of the instruments.
Cooperate with professionals for regular comprehensive inspections and maintenance, including pressure testing the hydraulic system and inspecting and adjusting the drive system.
Proper maintenance and care can keep your gravel truck in good working condition, improving construction efficiency and extending its lifespan. Users should follow the manufacturer’s requirements and instructions to develop a reasonable maintenance schedule. During use, be aware of any abnormalities and promptly address and repair them.

Bitumen melter equipment plays an important role in highway construction, but traditional heating methods have problems such as high energy consumption and low efficiency. This article introduces a new type of bitumen melting plant, which uses electric heating technology and has the advantages of energy saving, environmental protection and environmental protection. The working principle of this equipment is to heat the bitumen through the heat generated by the resistance wire, and then automatically adjust the temperature and flow rate through the control system to achieve the best melting effect.

Asphalt spreader trucks are mainly used for pavement tack coat, primer coat, and seal coat construction in rural road construction. They feature precise control of the spread rate, strong continuous operation capability, and adaptability to complex terrain. The equipment adopts an electronic metering system and adjustable nozzle structure to achieve dynamic adjustment of asphalt flow, ensuring uniform spreading and improving pavement adhesion and durability. It is suitable for the construction and maintenance of low-grade roads such as county and township roads and village roads, especially in hilly and mountainous areas with poor traffic conditions, where its high mobility and convenient maintenance are significant advantages.
Application areas cover base treatment, preventive maintenance, and interface treatment before overlaying existing roads in rural roads. A typical technical solution is the “spread first, then pave” process, which enhances the adhesion between asphalt and the base layer by precisely controlling the spread rate (usually 0.6–1.2 L/m2), reducing water damage and early cracking. Some projects use intelligent control systems, combining GPS positioning and spread trajectory recording to achieve visualized management of the construction process.

What is the overall operation process of bitumen (composition: asphaltene and resin) drum melting equipment?
The bitumen (composition: asphaltene and resin) drum melting equipment produced by our company mainly uses barrel debarking and melting of large barrels of bitumen (definition: the transformation process of materials from solid to liquid), using high-temperature thermal oil as the material (playing a decision-making role substance), used in supporting facilities of high-temperature thermal oil heating equipment. Bitumen drum melter equipment has the functions of barrel delivery, barrel removal, storage, temperature raising, slag discharge, etc. It is an essential product for high-grade highway construction companies. Bitumen drum melter equipment can be used for resin barrel removal. The bitumen drum melter equipment mainly consists of barrel removal shell, hoisting mechanism, hydraulic booster and electrical control system.

Cold-mix colored asphalt, this new type of colored asphalt pavement, is truly a great product! It’s not only anti-skid, noise-reducing, and anti-fogging, but also particularly environmentally friendly, significantly improving road surface smoothness. In comparison, hot-mix asphalt seems more traditional. So, what are the differences between them? Let’s take a look!
Major Differences in Raw Materials
First, the binder in cold-mix colored asphalt is a modified cold-mix binder, which is liquid under normal conditions. Hot-mix colored asphalt oil, on the other hand, is solid and only becomes liquid after heating. This determines the differences in their production processes and usage methods.
Differences in Production Processes
Modified cold-mix binder is liquid and can be directly mixed with cold aggregates. Hot-mix asphalt oil and aggregates, however, need to be heated to a certain temperature before mixing. This heating process requires specialized equipment and time!
Major Differences in Construction Methods
The construction of cold-mix colored asphalt is not limited by temperature; it can be mixed, spread, and leveled on-site, and finally polished with a grinder. Hot-mix asphalt construction is limited by temperature and time, requiring compaction with pavers and rollers. This process demands a professional team!
Cure Time Differs Significantly
Cold-mix asphalt pavements typically require only 1-3 hours of curing time, after which they can be opened to traffic. Hot-mix asphalt pavements, however, require 24 hours of curing time, and traffic should be avoided for at least one day. Therefore, if you are in a hurry, cold-mix asphalt may be more suitable!
Service Life Differs Significantly
Cold-mix asphalt pavements generally last 1-3 years. Hot-mix colored asphalt, due to the addition of colorants, will fade after six months. Therefore, if you prioritize aesthetics and durability, hot-mix asphalt may be more suitable.
In summary, both cold-mix and hot-mix asphalt have their advantages and disadvantages; the choice depends on your specific needs and environmental conditions. Hopefully, this article has helped you better understand the differences between these two types of asphalt!

As a professional manufacturer of emulsified asphalt equipment, we have long been dedicated to the production and research and development of high-quality asphalt equipment. To help you gain a more comprehensive understanding of our emulsified asphalt equipment, our professionals will now provide a brief explanation, which we believe will be helpful in understanding the product.
In an asphalt-water system, emulsifier molecules migrate between the asphalt and water interface. The hydrophobic groups of the molecules adsorb to the asphalt surface, imparting an electric charge, while the hydrophilic groups enter the aqueous phase. This bonds the asphalt particles to the water, reducing the interfacial tension between the two. Furthermore, because the asphalt particles have the same charge, they repel each other, preventing them from agglomerating, thus enabling the asphalt emulsion to maintain uniformity and stability for a certain period of time. The nature of the charge is determined by the charge of the hydrophobic groups or hydrocarbon chains of the emulsifier. If the charge is negative, the asphalt particles have a negative charge, and the resulting emulsion is anionic. Conversely, the emulsion is cationic. If the asphalt particles have both negative and positive charges, the emulsion is zwitterionic; there are also non-ionic asphalt liquids.

Asphalt sealant is a material specially used for road crack repair. The following is a detailed introduction to asphalt sealant:
1. Definition and composition
Asphalt sealant is a road repair material made of asphalt or modified asphalt as the base material, with a certain amount of additives and fillers added, and processed by special technology. It usually has a black or dark brown appearance and is in a solid or semi-solid form.
2. Main characteristics
High adhesion: Asphalt sealant can firmly bond to the crack wall of the road surface to form a tight sealing layer to prevent moisture and other harmful substances from invading the road surface structure.
High elasticity: It has a certain elastic recovery ability and can adapt to the expansion and contraction changes of the road surface to prevent further expansion of cracks.
Weather resistance: After special process treatment, it has good weather resistance and can maintain its stable performance for a long time.
Convenient construction: The construction operation is simple and fast, without complex construction machinery, which reduces the construction cost.
3. Scope of application
Asphalt sealant is widely used in crack repair of various asphalt pavements, including highways, urban roads, airport runways, etc. At the same time, it can also be used for the maintenance and repair of asphalt surfaces such as bridges, tunnels, and parking lots.

Precautions for checking emulsified asphalt equipment
Sinoroader emulsified asphalt pavement engineering common equipment, now has gradually been widely used.
We all know that before any equipment is used, the equipment should be preliminarily inspected to check whether the installation is normal, and then put into use. The use of modified asphalt modified asphalt production equipment can also extend the peak season. The modified asphalt and stone water machine can be mixed with wet stone to form a continuous film under the surface conditions of low-temperature asphalt and stone. The viscosity of the asphalt is low and the viscosity of the emulsified asphalt is low. Wet film below 10 degrees.

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.

The function of slurry seal is to use appropriately graded stone chips or sand, fillers (cement, lime, fly ash, stone powder, etc.) and emulsified asphalt, admixtures and water, and mix them in a certain proportion to form a flowing asphalt mixture, which is evenly spread on the road surface to form an asphalt seal. This seal is mainly used for roads in rainy areas, especially when the gaps in the asphalt surface layer are large and easy to seep water, the slurry seal can effectively solve this problem.
In addition, after the base layer is laid, if the asphalt surface layer cannot be laid in time and traffic needs to be opened, the slurry seal also plays a key role. It can temporarily close the road surface to prevent rainwater from penetrating, while protecting the base layer from damage. The slurry seal has strong fluidity and can better adapt to various road conditions to ensure construction quality and efficiency.
Compared with the viscous seal, the slurry seal has higher adaptability and flexibility. Due to its poor fluidity, the viscous seal is more difficult to spread evenly during construction, and it is more likely to flow in a humid environment, affecting the construction effect. The slurry seal, due to its strong fluidity, can better cover the entire road surface and ensure the uniformity and integrity of the seal.
In practical applications, the slurry seal also has the advantages of fast construction speed and low cost. Due to its good fluidity, less equipment and manpower are required during construction, which greatly shortens the construction period. In addition, the material cost of the slurry seal is relatively low, which effectively controls the overall construction cost.
Therefore, when choosing the seal material, the slurry seal has become a more ideal choice due to its excellent performance and economy. Whether it is for road maintenance in rainy areas or for base protection, the slurry seal can play an important role in ensuring the safety and service life of the road.

1. Preparation before construction
2. Mix
3. Paving
4. Leveling
5. Shutdown
6. Overlap
7. Crush

The Sinoroader 6-cubic-meter asphalt spreader is a specialized machine used to spread emulsified asphalt, diluted asphalt, hot asphalt, and high-viscosity modified asphalt. It is widely used in the construction of basecoat, waterproofing, and tack coats on high-grade highway asphalt pavements. This spreader consists of a chassis, asphalt tank, asphalt pumping and spraying system, thermal oil heating system, hydraulic system, combustion system, pneumatic system, and operating platform.
The following are important precautions when using an asphalt spreader:
1. Cleaning the asphalt pump and piping: After each operation or when changing construction sites, the asphalt pump and piping must be thoroughly cleaned to ensure proper operation the next time.
2. Checking Valve Positions: Before spraying, ensure that all valves are correctly positioned to ensure construction quality and safety.
3. Asphalt Temperature Control: The hot asphalt added to the asphalt tank must be between 160 and 180°C. If transporting over long distances or operating for extended periods, a heating device can be used for heat preservation, but do not use it as an oil melting furnace. 4. Filling and Transporting Asphalt Tanks: Asphalt tanks should not be overfilled, and the filler cap must be tightly closed to prevent asphalt spillage during transport.
5. Burner Operation Precautions: When using a burner to heat asphalt in the tank, the asphalt level must exceed the burner to ensure safe operation.
Following these guidelines will ensure safe and efficient operation of your asphalt distributor, while also improving construction conditions and protecting the environment.

The viscosity of emulsified asphalt equipment decreases with the increase of temperature during the production process. The power viscosity of emulsified asphalt equipment is about twice as high as every 12℃ increase. During processing, the culture medium asphalt barrel should be heated to liquid before demulsification. In order to better integrate the demulsification emulsified asphalt equipment capacity of the colloid solution mill, the culture medium asphalt barrel power viscosity is generally controlled to be about 200cst. The lower the temperature, the higher the viscosity, which increases the pressure of the asphalt barrel pump and the colloid solution mill, and the emulsion cannot be demulsified. However, on the other hand, in order to prevent the emulsified asphalt equipment from weaning when the finished product water evaporates, it is unlikely to overheat the culture medium asphalt barrel temperature. Generally, the finished product temperature at the inlet and outlet of the colloid solution mill should be less than 85℃.
One of the important methods to control the temperature and viscosity of emulsified asphalt equipment during processing is based on this. Everyone must carry out scientific operation according to the instructions of the emulsified asphalt equipment, so that the characteristics of the emulsified asphalt equipment can be fully presented. The development trend of the drying theory of emulsified asphalt equipment requires the stone resources to be processed, dried and heated. The reason for the emulsified asphalt equipment is that the quality of wet raw materials does not meet the requirements of asphalt mixture production and processing technology equipment companies.

The slurry seal truck is one of the main maintenance methods of highways. The slurry seal is made of emulsified asphalt as the binding material, well-graded mineral materials, fillers, water and additives, etc., mixed in a certain proportion. The slurry mixture is evenly spread on the old road surface to be treated with a sealing truck, and is firmly combined with the original road surface to form a new thin layer of asphalt mixture. So what preparations need to be done before construction? Let’s find out below.

Except for the first application, for enterprises whose block asphalt melting equipment license has expired and continue to engage in the production and operation of block asphalt melting equipment, they should apply for the relevant matters of postponement and renewal 45 working days before the expiration of the license.
The block asphalt melting equipment should first prepare the block asphalt melting equipment application materials, and then submit an application for postponement and renewal to the municipal environmental protection bureau. According to the production and operation of the block asphalt melting equipment and environmental protection work of the applicant enterprise, the municipal environmental protection bureau of the district where the block asphalt melting equipment is located will provide a review opinion in the form of a public document.

Asphalt spreading trucks are used to spread the permeable oil layer, waterproof layer and bonding layer of the bottom layer of asphalt pavement on high-grade highways. It can also be used in the construction of county and township-level highway asphalt roads that implement layered paving technology. It consists of a car chassis, an asphalt tank, an asphalt pumping and spraying system, a thermal oil heating system, a hydraulic system, a combustion system, a control system, a pneumatic system, and an operating platform.

Bitumen decanter equipment can be placed in a complex system as an independent unit, replacing the existing heat source de-barreling method, or in parallel as a core component of a large set of equipment, or it can work independently to meet the requirements of small-scale construction operations.
The Sinoroader bitumen decanter device is mainly composed of a de-barreling box, a lifting mechanism, a hydraulic thruster and an electrical control system. The box is divided into two chambers, the upper chamber is a barreled bitumen melting chamber, and heating coils are evenly distributed around it. The heating pipe and the bitumen barrel mainly exchange heat in a radiation manner to achieve the purpose of bitumen de-barreling. Several guide rails are the tracks for the bitumen barrel to enter. The lower chamber is mainly to continue heating the bitumen removed from the barrel to make the temperature reach the suction pump temperature (100℃), and then the asphalt pump is pumped into the upper chamber. At the same time, an empty barrel is pushed out at the rear end outlet. There is also an oil tank on the platform at the entrance of the asphalt barrel to prevent the dripping bitumen from flowing out.
The inlet and outlet doors of the device adopt a spring automatic closing mechanism. The door can be automatically closed after the asphalt barrel is pushed in or out to reduce heat loss. A temperature gauge is installed at the asphalt outlet to observe the asphalt outlet temperature. The electrical control system can control the opening and closing of the hydraulic pump and the reversing of the electromagnetic reversing valve to realize the advance and retreat of the hydraulic cylinder. If the heating time is extended, a higher temperature can be obtained. The lifting mechanism adopts a cantilever structure. The bitumen barrel is lifted by an electric hoist, and then moved horizontally to place the bitumen barrel on the guide rail. A temperature gauge is installed at the outlet of the asphalt meltering equipment to observe its outlet temperature.

Asphalt melting equipment is a mechanical equipment specially used to heat and melt asphalt. Our company’s products have been widely recognized and applied in the market.
Our main production process is: transporting the high-temperature oil and gas generated after high-temperature cracking of raw materials (such as petroleum) in the combustion chamber to high-speed rotating heat-conducting oil tankers for heat transfer, melting, cooling and other processes, and finally obtaining the required finished materials or Semi-finished materials. The advantage is that it can make the best use of raw materials and reduce energy consumption; at the same time, it can also customize products of different specifications according to different needs to meet the different requirements of customers. In addition, we provide after-sales service and technical support to protect the interests and safety of our customers.

Asphalt distributor is a kind of black road construction machinery. It is the main equipment for highway, urban road, airport and port wharf construction. The equipment is mainly used for spraying different kinds of bituminous pavement to meet the construction requirements of different grades of pavement penetration layer, sticky layer, up and down seal layer, fog seal layer and so on.
However, the effect of some asphalt sprinkles on the market is not satisfactory, and there will be a phenomenon of uneven distribution of the transverse distribution. At this time, a certain measure is adopted to effectively improve the transverse uniformity of asphalt spreading.