Preparation of Asphalt Emulsifier Aqueous Solution

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.

The main filter material of stainless steel barrel removal adopts five-layer sintered mesh. Standard five-layer calcination is made by stacking and vacuum calcining five layers of stainless steel barrel removal wire mesh. The stainless steel barrel made of it has corrosion resistance, good water permeability, high compressive strength, easy cleaning and back-cleaning, high filtration precision, hygienic and clean filter material, and stainless steel barrel removal wire mesh does not fall off.
Double-layer metal sintered mesh is a new type of filtration system with high impact toughness and overall rigidity, which is made by stacking and vacuum calcining double-layer stainless steel barrel removal wire mesh products.

I. The Dual Agent Role of Emulsifiers
Bitumen emulsifiers are like translators fluent in diplomacy, possessing a unique molecular structure: one end is oleophilic (receptive to bitumen), and the other is hydrophilic (receptive to water). When added to a mixture of bitumen and water, the oleophilic end tightly binds to the bitumen particles, while the hydrophilic end extends outward to combine with water, forming tiny bitumen spheres encased in water. This structure allows two otherwise incompatible substances to coexist peacefully.
II. Three Key Steps in the Emulsification Process
Mechanical Shearing: High-speed agitation breaks down the bitumen into tiny particles.
Charge Stabilization: The emulsifier coats the bitumen particles with a charged outer layer (usually negatively charged), causing them to repel each other and prevent aggregation.
pH Adjustment: Controlling the acidity or alkalinity to maintain the stability of the emulsion system, acting like a buffer for the mixture.
III. The Unsung Heroes of Road Construction
Emulsified bitumen can be applied at room temperature, saving over 30% more energy than hot bitumen. Once laid on the road surface, the emulsifier automatically “retires” after the water evaporates, allowing the bitumen particles to re-aggregate and form a continuous waterproof layer. This characteristic makes it particularly suitable for repairing potholes and working in rainy weather, making it a great helper for road maintenance.

Routine maintenance of asphalt concrete pavements is crucial for ensuring their service life and driving safety. Specifically, the following measures can be taken:
1. Regular Cleaning: Regularly remove dust, garbage, and other debris from the pavement to prevent these substances from affecting drainage performance or causing wear and tear during vehicle traffic.
2. Crack Inspection: Regularly inspect the pavement for cracks and promptly repair any small, fine cracks. Larger cracks require more specialized repair methods.
3. Disease Prevention: Observe the pavement for ruts, bumps, and other defects. Address any issues promptly to prevent escalation.
4. Maintaining a Good Drainage System: Ensure that drainage facilities are unobstructed to prevent water accumulation and erosion of the asphalt layer. If necessary, add or improve existing drainage systems.

Whether it is the application of modified asphalt equipment or the application of other equipment, if you want to extend its service life, you need to do daily maintenance work. In order to better help everyone, we have modified asphalt The maintenance methods that can be adopted when using the equipment are introduced as follows:

Conventional pit repair techniques are mainly hot material repair and cold filling repair, and warm mixing technology is used to ensure compaction, while there are also some special repair methods such as slurry seal/micro-surface material repair

The LB1500 forced asphalt mixing plant, a flagship product of Sinoroader, demonstrates unparalleled performance advantages. Its powerful mixing capacity efficiently meets the construction needs of various large-scale road projects. The equipment utilizes advanced forced mixing technology, with specially designed mixing blades ensuring thorough mixing of aggregate, asphalt, and powder during the mixing process, resulting in highly uniform asphalt concrete with consistent quality and superior performance, providing a solid foundation for road durability and stability.

In terms of metering, our LB1500 is equipped with high-precision sensors and an intelligent control system. This allows for precise metering of aggregate, asphalt, and powder within extremely tight tolerances, ensuring precise batching, effectively avoiding material waste and reducing production costs. Furthermore, the equipment features efficient drying and heating systems that quickly dry and heat aggregate to the desired temperature, improving production efficiency and adapting to aggregates with varying moisture contents. Over the years, we have earned a good reputation in the international market with our reliable product quality and excellent after-sales service, and our products are exported to more than 30 countries and regions. Our close cooperation with foreign customers not only provides strong support for road construction in their countries, but also promotes exchanges and progress in technology, management and other aspects between the two parties.

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 are the characteristics of bitumen emulsifiers? What are the differences between bitumen emulsifiers currently on the market? The manufacturer has compiled the following information to answer your questions and provide a more detailed understanding of the characteristics of asphalt emulsifier products.
1. The bitumen emulsifier produced by this manufacturer is a commonly used waterproofing material. During use, this asphalt emulsifier has undergone rigorous testing and has excellent self-adhesive properties. It is highly practical and widely used.
2. The bitumen emulsifier produced by this manufacturer is very convenient to apply. No special equipment is required; only a few people and a small vehicle are needed for normal application. The operation is simple, convenient, and fast, and no professional training is required for workers. Importantly, the asphalt emulsifier has good water resistance, good low-temperature performance, and strong adhesion. After application, it does not deform and is not easily deformed by rainwater.

When performing bitumen melting, specialized equipment is required. These equipment usually include bitumen melting furnaces, asphalt mixers, asphalt conveying equipment, etc. Among them, the bitumen melting furnace is one of the most advanced equipments, which can heat solid bitumen to liquid state. In addition, asphalt mixers can mix liquid asphalt with stone to make asphalt concrete. , Asphalt conveying equipment can transport asphalt concrete to the construction site. The selection and use of these equipment are of great significance to ensure the quality of bitumen melting and construction efficiency.

Due to the incorporation of a certain proportion of water into the slurry sealing mixture, it is easy to evaporate in the air. After the water is evaporated, it will become dry and hardened. Therefore, after the slurry is formed, it not only looks very similar to fine-grained asphalt concrete, but does not affect the visual appearance of the road. It also has the same technical properties as fine-grained concrete in terms of wear resistance, anti-skid, waterproofing, and smoothness. Slurry seal technology is used in highway pavement maintenance because of its simple construction technology, short construction period, low cost, high quality, wide application, strong adaptability, etc. It is an asphalt with both economy and high efficiency. Pavement maintenance technology is worthy of application and promotion.

【Material Characteristics and Performance】
【Crack Resistance and Self-Healing Ability】
1. Modified Asphalt Technology
SBS rubber modification achieves an elongation rate of up to 500%, easily handling cracks within 3mm. Fiber-reinforced design triples tear resistance, 10 times stronger than ordinary asphalt. Small cracks less than 0.5mm can self-heal.
2. Temperature Adaptability
Suitable for temperatures from 20℃ to 90℃, not afraid of hard winters and soft summers. Does not crack in the north or flow in the south. Freeze-thaw test freezing point as low as 35℃.
3. Weather Resistance Performance
Carbon black film absorbs 80% of ultraviolet rays, providing longer sun protection. Can last for over 20 years, 80% longer than ordinary asphalt. Water absorption rate is only 0.1%, resistant to heavy rain.

When using asphalt melting equipment, you need to pay attention to the following points:
1. The power must be cut off during installation and operation to ensure safety.
2. Before starting operation, check whether all components are normal and have no fault prompts. In particular, the inspection of key parts such as the heater part and the conveyor belt device is particularly important.

The viscosity of the drum bitumen decanter equipment decreases as the temperature increases during the production process. Its output viscosity is about twice as high as every 12°C increase. During production, the base bitumen decanter equipment must first be heated to a liquid state and then emulsified. In order to better integrate the emulsification ability of colloid milling, the viscosity of base bitumen decanter is generally controlled to be about 200 cst. The lower the temperature, the higher the viscosity, which increases the pressure on the bitumen decanter pump and colloid milling, making emulsification impossible: However, on the other hand, in order to prevent the bitumen decanter equipment from weaning when the moisture of the finished product evaporates, it is impossible to heat the base asphalt barrel removal temperature too high, and generally use a colloid grinding inlet and outlet system. The finished product temperature should be below 85°C.

Asphalt melting equipment is one of the indispensable equipment in modern road construction. Its main function is to heat a large amount of cold hard asphalt to a suitable working temperature at the construction site. Advanced asphalt melting equipments can greatly improve construction efficiency, reduce human resources and time costs, and ensure pavement quality at the same time.
First of all, reliable asphalt melter equipment can shorten heating time and work efficiency and avoid wasting energy. Secondly, the equipment is easy to operate and can reduce the incidence of on-site safety accidents. In addition, this equipment has an automatic control and monitoring system that can adjust the working status and parameters at any time to meet different construction needs and environmental conditions.

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 road construction is a systematic project, and its operational process is as follows: First, in the preparation stage, the construction site must be cleaned and leveled, obstacles and debris removed, ensuring the base layer is solid, flat, and meets design requirements. Simultaneously, the required asphalt, aggregates, and other materials must be rigorously inspected to ensure quality standards are met, and the construction equipment must be properly tested. Next is the paving operation, where a paver is used to evenly spread the hot-mix asphalt mixture on the base layer, controlling the paving speed and thickness to ensure smoothness and uniformity. During the paving process, a dedicated person should inspect the paving quality and address any problems promptly. Then comes the compaction stage, where a road roller is used to compact the paved asphalt mixture in three stages: initial compaction, intermediate compaction, and final compaction. Initial compaction closely follows the paver to initially stabilize the mixture; intermediate compaction increases density; and final compaction eliminates wheel tracks. Strict requirements govern the compaction speed and number of passes at each stage. Finally, quality inspection is conducted to check whether the road’s smoothness, compaction, thickness, and other indicators meet design standards. After passing inspection, a smooth and durable asphalt road is built.

Abstract: Asphalt melting equipment is one of the indispensable equipment in modern road construction. Its main function is to heat a large amount of cold hard asphalt to a suitable working temperature at the construction site. Advanced asphalt melting equipment can greatly improve construction efficiency, reduce human resources and time costs, and ensure pavement quality at the same time.

Asphalt emulsifiers can be divided into synthetic emulsifiers, natural emulsifiers, inorganic powder emulsifiers, etc. according to their formation. Synthetic emulsifiers are currently the most widely used. Asphalt emulsifiers are a type of organically synthesized surfactant that can emulsify asphalt.
Emulsifiers are divided into ionic and non-ionic types according to whether the hydrophilic group of the emulsifier molecule is charged when the emulsifier is dissolved in water. Ionic emulsifiers are divided into cationic and anionic types due to the different charges of the hydrophilic group after ionization in water. In addition, there are zwitterionic types.
Cationic emulsifiers are divided into three types: fast cracking, medium cracking, and slow cracking according to the speed of demulsification. Slow cracking emulsifiers are divided into slow setting and fast setting according to the length of time the mixture solidifies. Slow cracking and slow setting types are mainly used as permeable oils. Slow cracking and fast setting are used for micro-surfacing, slurry sealing, cold regeneration, etc. Medium cracking and fast cracking types are used for adhesive layer oils, gravel sealing layers, and waterproof base oils.

Asphalt mixture is a kind of composite material, mainly composed of asphalt, coarse aggregate, fine aggregate, mineral powder, some also added polymer and wood cellulose; By these different quality and quantity of materials mixed to form different structures, and have different mechanical properties

The slurry sealer is a special equipment for road maintenance that we see in our lives. The slurry sealer is mainly used to deal with the decrease in surface wear resistance, cracks, etc. of the road, to improve the waterproofness and skid resistance of the road surface, thereby greatly improving the driving comfort and flatness inside, so as to achieve a new effect for the road surface. So what is the operation process of the slurry sealer?
Before starting the slurry sealer, you should be prepared to test the quality of the slurry sealer materials before construction. One of the most important points is to certify and inspect whether the content of emulsified asphalt can meet the requirements of the specification, and the mixture should also meet the requirements. After confirming the measurement standards, check that the road surface to be constructed should be dry, free of debris, water, flat, etc.

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.

I believe that after a long period of contact with asphalt tanks, everyone knows that the working efficiency of emulsified asphalt equipment actually depends on the operator. The more experienced the operator is and the stronger his ability to deal with various emergencies is, the higher the working efficiency will be, and the safety will be guaranteed. Mastering more equipment-related knowledge is what every friend should pursue. Today, the editor will explain to you the details that need to be paid attention to when operating emulsified asphalt equipment:

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.

After the rubber bitumen storage tank is cleaned, the wood chips are sent to the rubber bitumen storage tank, and the wood chips and the bottom of the rubber bitumen storage tank are wiped with wood chips. The dirt and wood chips in the bitumen tank can be weathered naturally. The rubber bitumen storage tank is not allowed to be damaged. Check the technical specifications of the underwater concrete processing equipment and ventilation equipment.
The bottom of the rubber bitumen storage tank drain pipe is discharged from the drainage pipe, and the waste water is discharged into the empty tank or other containers through the inlet and outlet and the self-draining pipe. Open the Shenzhen manhole into the plastic suction pipe and pave the Shenzhen manhole with asbestos to reduce the discharge of oil and gas. When manually pumping the bottom oil, two people should be operated to improve the labor efficiency of the workers and send the fuel tank to supervision.

With reliable performance and stable benchmark quality, Sinoroader slurry sealer is favored by customers and was once in short supply. Sinoroader slurry sealer uses emulsified asphalt, which can reduce the sensitivity of construction temperature and effectively extend the construction time. Sinoroader slurry sealer has fast molding, improves construction speed, shortens road construction time, and reduces the manpower and material resources required for construction. In addition, in terms of energy saving and consumption reduction, Sinoroader slurry sealer can be constructed at room temperature, achieving “0 release” of harmful gases, reducing air pollution, and is very green and environmentally friendly.

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.

During the road construction process, asphalt spreaders also play an irreplaceable role. Let’s take a look at the main performance advantages of asphalt spreaders produced by Sinoroader and where their main contributions exist?
1. Manual/automatic control of spraying volume and working width. Each nozzle can be controlled individually, and the determinant nozzles can be freely combined to adjust the spraying width at will. Spreading control can be performed in the cab or the rear platform.
2. The automatic control system can measure the vehicle speed and automatically calculate the number of revolutions of the asphalt pump according to the input spreading volume, spraying width and asphalt type, and then automatically adjust the number of asphalt pumps through the system.
3. The vehicle-mounted rapid heating system (10-15℃/h) can improve the heating efficiency and reduce the construction auxiliary time and spreading temperature;
4. The flushing nozzle system can blow out the remaining asphalt in the nozzle through diesel and high-pressure air to prevent the asphalt from freezing in the nozzle and increase the service life of the nozzle.

PMB equipment is specialized industrial equipment. When purchasing it, price should not be the sole focus. A comprehensive consideration of equipment performance, quality, and service is necessary to avoid problems such as low production efficiency and poor product quality due to improper selection. The six core considerations are:
Equipment Performance and Product Quality: Prioritize equipment that meets the company’s production capacity needs. Pay attention to the equipment’s stability and durability to ensure long-term continuous and trouble-free operation. The quality of core components such as colloid mills and shears directly determines the quality of the modified asphalt and requires close examination.
Manufacturer Reputation and Brand Strength: Choose reputable, established manufacturers with a good market reputation. These manufacturers have comprehensive quality management systems and production processes, and their equipment has been market-tested, ensuring higher quality. Avoid choosing unlicensed or small-scale workshops.

Characteristics of micro-surfacing thin layer paving:
(1) It has a better sealing effect than ordinary hot asphalt overlay, which can prevent the infiltration of road surface water and better protect the road surface structure;
(2) Micro-surfacing is a quick construction solution for rutting repair;
(3) Compared with ordinary slurry seal, micro-surfacing has better wear resistance and anti-skid performance;
(4) Under the premise of stable roadbed and pavement, the service life of micro-surfacing construction can reach more than 5 years;
(5) Micro-surfacing paving adopts mechanized construction, with less manual work, fast construction speed and high efficiency;
(6) Compared with the traditional asphalt pavement maintenance method of milling and paving about 4cm hot mix asphalt concrete overlay, the unit area cost is lower;
(7) Fast opening to traffic, 1-2 hours after paving construction, it can be opened to traffic, reducing the impact of construction on traffic;
(8) Cold construction, no need for heating, energy saving and environmental protection.