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High-low temperature resistance test of asphalt mortar

Abstract: 本文介绍了高低温试验箱在沥青胶浆耐高低温试验中的应用。沥青胶浆广泛用于道路修补和防水处理,但在实际应用中需面对高温和低温等不同气候条件的挑战。为了评估沥青胶浆在这些极端温度下的性能和可靠性,需要进行耐高低温试验。此试验可以检测沥青胶浆在高温下的软化点、流动性和粘度,以及在低温下的弯曲性、断裂性和抗拉性等关键指标。此外,试验还评估其耐久性、抗老化性能和防水性。试验步骤包括样品准备、温度程序设定、高低温循环测试、过程监测以及最终的性能评估。这一过程确保沥青胶浆在各种气候条件下的质量和稳定性,从而提升其在道路建设中的应用价值和可靠性。

Asphalt mortar is a common road material, mainly used for road repair and waterproofing. Since asphalt mortar needs to withstand different climate and environmental influences during use, such as high or low temperature environment, strong wind or heavy rain, etc., high-low temperature resistance tests are required to test the performance of asphalt mortar at different temperatures and humidity and reliability. This test can test the softening point, fluidity, viscosity and other properties of asphalt mortar at high temperature, as well as the bending, fracture and tensile properties at low temperature, so as to ensure the asphalt mortar in different climates and environments. quality and stability. In addition, the high-low temperature resistance test can also test the durability, anti-aging performance and waterproof performance of asphalt mortar, so as to determine its service life and scope of application, and improve its practical value and reliability in road construction.

High-low temperature resistance test of asphalt mortar with Figure 1

The high-low Temperature Test Chamber can be used for high-low temperature resistance tests to evaluate its performance and stability in extreme temperature environments.

The following are the general steps of the high-low temperature resistance test of asphalt mortar:

  1. Sample Preparation: Asphalt mastic samples were prepared according to standard specifications and cut to a suitable size to fit the size of the Test Chamber.

  2. Temperature program setting: Set the temperature program according to the test standard or product specification. Generally, high-low temperature cycle tests are required. Return to room temperature.

  3. Sample loading: put the sample into the high-low Temperature Test Chamber, and gradually increase or decrease the temperature according to the standard procedure.

  4. Test process monitoring: During the test process, the temperature change of the sample is monitored, and a temperature sensor or an infrared thermometer can be used for real-time monitoring.

  5. After the test is completed, take out the sample for evaluation: After the test is completed, take out the sample for evaluation. The performance stability of the sample can be evaluated by observing the appearance change, measuring physical properties, chemical properties and other methods.


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