ASTM D6929−10 Standard Practice for Freezing of Emulsified Asphalts

ASTM D6929−10 Standard Practice for Freezing of Emulsified Asphalts

Scope

1.1 Emulsified asphalt is normally damaged by freezing temperatures, but specially formulated materials are expected to pass this practice.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This practice 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.

ASTM D6929−10 Standard Practice for Freezing of Emulsified Asphalts

Significance and Use

2.1 Certain agencies, who desire to use, store, or transport emulsified asphalt under less-than-ideal weather conditions, may require that the product remain homogeneous (unbroken) after being subjected to temperatures of −18°C.

Sample Conditioning

3.1 All emulsified asphalts shall be properly stirred to achieve homogeneity.

3.2 All emulsified asphalts with viscosity testing requirements of 50°C shall be heated to 50 6 3°C in the original sample container in a water bath or oven.

The container should be vented to relieve pressure. After the sample reaches 50 6 3°C, stir the sample to achieve homogeneity.