FY-0754 Emulsified Asphalt Cohesiveness Tester
In road construction, the cohesiveness of emulsified asphalt plays a vital role in road quality. The FY-0754 Emulsified Asphalt Cohesiveness Tester is a powerful tool for accurately measuring this key performance, providing strong support for the smooth progress and quality assurance of road construction.
The FY-0754 Emulsified Asphalt Cohesiveness Tester is mainly used to measure the time required for the emulsified asphalt slurry seal mixture to reach full curing. This data is crucial for determining the time to open the emulsified asphalt slurry seal mixture to traffic early after construction. By accurately measuring the cohesiveness and curing time, the construction team can reasonably arrange the construction progress and avoid damage to the road surface caused by premature opening of traffic, thereby improving the durability and stability of the road and ensuring traffic safety and smoothness.
Excellent performance and features
Strictly follow the standards: The tester fully complies with the test specifications of "TO754 - 2000" in the "JYJ052 - 2000" standard, ensuring the accuracy and reliability of the test data, making it authoritative in various road engineering inspections and providing a solid data foundation for engineering quality control.
Wide range of application scenarios: It can be used for detailed testing and analysis in the laboratory to provide accurate data for research and development and quality control; it can also be used directly on the construction site, which is convenient for construction personnel to test the emulsified asphalt mixture at any time, adjust the construction parameters in time, and ensure the construction quality. This flexible application scenario adaptability greatly improves work efficiency and the controllability of engineering quality.
Well-designed and easy to operate: The overall manufacturing process is excellent, and strict control is carried out from material selection to assembly to ensure the durability and stability of the instrument. At the same time, the operation design fully considers user needs and is convenient and fast. Even first-time users can quickly get started after simple training and successfully complete the test work.
Accurate and reliable test results: All key components of the instrument, such as the pressure head and force measuring wrench, have been carefully designed and strictly calibrated. The rubber pad of the pressure head has a diameter of 28.6mm and a thickness of 6.4mm, which can apply pressure evenly; the maximum torque of the torque gauge of the force measuring wrench is not less than 350N.cm, and the diameter of the force transmission rod is 8cm, which ensures the accuracy of torque measurement, thereby ensuring that the test results are accurate and correct, and providing reliable data basis for road engineering.
Main technical parameters
Indenter: It uses a rubber pad of specific specifications, with a diameter of 28.6mm and a thickness of 6.4mm. Its material and size have been optimized to fully contact the test piece during the test, evenly transmit pressure, and ensure the accuracy of the test results.
Force wrench: Equipped with a high-precision torque gauge, the maximum torque is not less than 350N.cm, and the diameter of the force transmission rod is 8cm. It is sensitive and accurate in measuring torque, and can accurately capture the data of the change in the adhesion of the test piece.
Circular test mold: Two specifications are provided, namely ①Φ60mm (inner diameter) × 6mm (height), suitable for fine or medium slurry sealing materials; ②Φ60mm (inner diameter) × 10mm (height), used for coarse sealing materials, to meet the testing needs of different types of emulsified asphalt mixtures.
Other parameters: The instrument weighs 20KG, which is convenient for handling and carrying; the dimensions are 400x300x600mm, with a compact design that does not take up too much space; the working environment requires an ambient temperature of ≤35℃ and a relative humidity of ≤85%, and it can work stably in common construction and experimental environments.
Key points for operation and maintenance
Operation steps:
First, prepare coarse and fine aggregates and fillers according to the specified grading and dry them; weigh 500g of the total weight of the mixture and put it into the mixing pot, add appropriate amount of water and mix well, then add quantitative emulsified asphalt and mix for 1 to 3 minutes; place the annular test mold on the asphalt felt, pour the mixed slurry mixture and scrape it flat (select a test mold of appropriate height according to the type of sealing material). Start the stopwatch, demould the sample after initial setting and restart the time.
Next, place the initially set specimen under the pneumatic rubber pad of the adhesion test instrument and let it stand for 15 minutes; use a bicycle air pump or air compressor to apply pressure to the instrument.
When the pressure gauge of the instrument shows 0.72Mpa (the pressure of the rubber base on the specimen is 193KPa at this time), set the torque hand measuring force gauge to zero and cover the upper end of the cylinder. Twist 90-120 degrees smoothly and horizontally within 0.7-1 seconds and read the torque meter reading; raise the rubber base and clean the bottom.
Repeat the above steps every 15 minutes. If the curing time is long, the interval can be extended to 30 minutes for one test. Stop when the maximum torque is reached and the torque is constant.
Record the time when the maximum torque is reached, which is the curing time. The curing time plus the initial setting time is the "early traffic opening time" of the slurry mixture.
Maintenance:
If the instrument is not used for a long time, the piston rod should be moved every half a month to prevent it from getting stuck. If the piston is too tight, lubricating oil should be added; at the same time, the torque wrench should be turned several times a month to ensure its normal operation, extend the service life of the instrument, and ensure that the instrument is in the best working condition at any time.
The FY-0754 Emulsified Asphalt Adhesion Tester has become an indispensable instrument in the field of road engineering with its precise testing performance, wide applicability and convenient operation and maintenance features, and has contributed key strength to the creation of high-quality road engineering.
