针入度对室温的敏感性与PI或PVN的关系

EFFECT OF ROOM TEMPERATURE ON PENETRATION OF BITUMENS AND PI OR PVN OF BITUMENS

选用国内最具代表性的８种沥青，按照国标（ＧＢ／Ｔ４９０５）对针入度进行测定，通过平行实验和重复性试验，探讨了针入度对室温的敏感性与ＰＩ或ＰＶＮ的关系。

8 kinds of typical domestic bitumens have been selected and penetration of bitumens is measured by Standard GB/T 4950Results of parallel and reproducibility tests are used for analyzing effect of room temperature on penetration and PI or PVN of bitumens