Asphalt Brittle Point Tester LS-1 Type Asphalt Brittle Point Tester Hebei New Generation Asphalt Brittle Point Tester

Asphalt Brittle Point Tester LS-1 Type Asphalt Brittle Point Tester Hebei New Generation Asphalt Brittle Point TesterOne of the products successfully developed and put into operation by Hebei Hongyu Instrument Equipment Co., Ltd., Hebei Hongyu Instrument Equipment Co., Ltd. relies on its process technology for the "Asphalt Brittle Point Instrument" and provides excellent after-sales service, making the "Asphalt Brittle Point Instrument" in the domestic market for decades

Sincerely intended to be one of the products independently developed and put into operation by Hebei HongyuAsphalt Brittle Point TesterIn order to ensure that you are always satisfied with the purchase, ownership, and use of our products, our company has a nationwide network to provide you with * services“Survive by quality, compete for efficiency by quantity”Quality is the life of an enterprise, and Hebei Hongyu Company strictly controls quality. Based on the principle of integrity, we provide you with services

Introduction to LS-1 Asphalt Brittle Point TesterThis is a new generation instrument independently developed by Hebei Hongyu Instrument Equipment Co., Ltd,
Asphalt Brittle Point TesterOverview: The brittle point test of asphalt is a non-standard test that has not yet been included in the specifications. As the temperature decreases, the asphalt material gradually changes from a sticky plastic state to an elastic brittle state, resulting in a decrease in surface plasticity and an increase in brittleness. This instrument is used to measure the brittle point of asphalt at low temperatures.
Asphalt Brittle Point TesterThis test instrument involves coating a thin layer of asphalt mold on a certain metal sheet, and bending the metal sheet through a handle in an insulation cylinder equipped with a cooling device. As the temperature decreases, the temperature of the asphalt mold gradually decreases. When it reaches a certain temperature, the temperature at which the asphalt mold fractures under the specified bending conditions (displayed by an alcohol thermometer) is the brittle point of the asphalt.
Structure of Asphalt Brittle Point Instrument:
The instrument consists of a base, insulation cylinder, thermometer, lower clamp, upper clamp, fixed rod, base, guide rail slider, handle and other parts.
The base is the support for the instrument.
The insulation cylinder is a double-layer glass cylinder used to hold a fixed mixture of carbon dioxide (dry ice) and ethanol as a cooling device. The lower clamp and upper clamp are used to fix the metal sheet.
The fixed rod and movable rod are made of laminated wood, which overcomes some of the drawbacks of metal tubes, such as changes in instrument performance caused by lubrication, corrosion, temperature, and other factors.
The base, guide rail, slider, handle and other parts are used to change the axial position of the fixed rod and movable rod, causing the metal sheet to bend. The curved glass tube (long and short) is used for vacuuming and supplementing dry air.

Asphalt Brittle Point TesterTest Method
1. Wipe the instrument clean and make it transparent to observe the changes in the sample during the experiment.
2. Heat and melt the asphalt sample, dehydrate it, and cool it down. Weigh the asphalt sample with a weight equivalent to 0.4 cubic centimeters and place it in a drying cylinder to heat it up. The asphalt should be melted and coated evenly on a metal sheet with a thickness of 0.5 millimeters. Then let the steel sheet coated with asphalt cool at room temperature for 1 hour.
3. Remove the rubber stopper and place an appropriate amount of solid carbon dioxide and ethanol mixture (or acetone) in the insulation cylinder as it is.
4. The removed rubber stopper (fixed in the overall device of the stopper) is carefully clamped between the upper and lower clamps of the instrument with the steel sheet coated with asphalt.
5. Install the small rubber stopper and other accessories, assemble them as they are, and insert the thermometer into the top circular hole of the movable rod.
6. Adjust the cooling rate inside the thermos bottle by extracting air to reduce it by 1 ° C per minute.
7. When the temperature drops to the expected brittle point temperature of * ° C, the handle of the instrument begins to swing. The speed of the swing handle is controlled at 5 revolutions per minute. At this time, the slider rises from the * step to the second step, with a height difference of 3.5 millimeters. The steel plate also bends into an arch shape. Then, the handle is swung back to its original position (* step) at this speed, and the steel plate is straightened.
Repeat the following steps for each degree decrease in temperature.
8. The temperature at which cracks appear in the specimen is the brittle point of the asphalt sample.
Asphalt Brittle Point TesterInstructions
1. The arithmetic mean of three parallel experiments shall be taken as the brittle point, and the difference between the brittle points determined by the lyrics shall not exceed 3 ° C
2. Each instrument is equipped with 4 stainless steel plates, which must be flattened when not in use. As for the dry instrument box
3. This experimental method is for reference only
Asphalt Brittle Point Testerinstrument maintenance
Please do not collide during the experiment and handle with caution. After the experiment, wipe all parts of the instrument clean and place them inside the instrument box to prevent glass products from breaking

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