当前位置: 首页 > 协会标准 > ASTM 美国材料与试验协会 > ASTM D6648-2008 使用弯曲束流变仪测定沥青粘结剂柔性蠕变硬度的试验方法
ASTM D6648-2008 使用弯曲束流变仪测定沥青粘结剂柔性蠕变硬度的试验方法

ASTM D6648-2008 使用弯曲束流变仪测定沥青粘结剂柔性蠕变硬度的试验方法

prev next

  • 商品货号:INFOEACH_80974
  • 商品品牌:美国材料与试验协会 ASTM
    商品重量:0克
  • 上架时间:2021-03-08
    商品点击数:5582
  • 用户评价: comment rank 5
  • 本店售价:请咨询客服
  • 点击此处进入论坛自助下载

资料描述

【英文标准名称】: Standard Test Method for Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR)
【原文标准名称】: 使用弯曲束流变仪测定沥青粘结剂柔性蠕变硬度的试验方法
【标准号】: ASTM D6648-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: D04.44
【标准类型】: (Test Method)
【标准水平】: ()
【中文主题词】:
【英文主题词】: bending beam rheometer; flexural creep compliance; flexural creep stiffness; Asphalt binder; BBR (bending beam rheometer); Flexural testing--concrete; Rheometers
【摘要】: The temperatures for this test are based upon the winter temperature experienced by the pavement in the geographical area for which the asphalt binder is intended. The flexural creep stiffness or flexural creep compliance, determined from this test, describes the low-temperature stress-strain-time response of asphalt binder at the test temperature within the range of linear viscoelastic response. The low-temperature thermal cracking performance of asphalt pavements is related to the creep stiffness and the m-value of the asphalt binder contained in the mix. The creep stiffness and the m-value are used as performance-based specification criteria for asphalt binders in accordance with Specification D 6373. 1.1 This test method covers the determination of the flexural-creep stiffness or compliance and m-value of asphalt binders by means of a bending beam rheometer. It is applicable to material having flexural-creep stiffness values in the range of 20 MPa to 1 GPa (creep compliance values in the range of 50 nPax2013;1 to 1 nPax2013;1) and can be used with unaged material or with materials aged using aging procedures such as Test Method D 2872 or Practice D 6521. The test apparatus may be operated within the temperature range from x2013;36x00B0;C to 0x00B0;C. 1.2 Test results are not valid for test specimens that deflect more than 4 mm or less than 0.08 mm when tested in accordance with this test method. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
【中国标准分类号】: Q27
【国际标准分类号】: 93_080_20
【页数】: 14P.;A4
【正文语种】: 英语

相关资料