燃烧法沥青含量测试仪校准方法的研究

Study on the Calibration Method of Asphalt Content Tester by Burning Method

沥青含量是影响沥青混凝土路面施工质量的关键指标,其准确、快速的测定可为施工控制提供科学、准确的数据支撑。本文通过对燃烧法沥青含量测试仪校准方法进行研究,提出改进现有的检定过程,以及对主燃烧室和二次燃烧室的温度示值误差、升温时间、称量示值误差、称量重复性主要参数进行校准的方案,并阐述了该测试仪校准各参数时所需的测量标准、校准方法及不确定度评定,为检测和计量校准提供了参考。

Asphalt content is the key index that affects the construction quality of asphalt concrete pavement.Its accurate and rapid measurement can provide scientific and accurate data support for construction control.Based on the research on the calibration method of the bitumen content tester for combustion method,this paper proposes a scheme to improve the existing verification process and calibrate the main parameters of the temperature indication error,heating time,weighing indication error and weighing repeatability of the main combustion chamber and the secondary combustion chamber,and expounds the measurement standard,calibration method and uncertainty evaluation required for the calibration of each parameter of the tester.It provides reference for testing and measurement calibration.