摘要
选用两种高模量添加剂ZQ-2及ECB,分别对三个不同掺量下(5%、7%、10.5%)的两种高模量沥青进行动态剪切流变试验(DSR)及低温梁弯曲试验(BBR),分析不同掺量下它们的高低温性能。研究表明:随着掺量的上升,掺加ZQ-2的高模量沥青高温性能随之提高,低温性能下降;而掺加ECB的高模量沥青高低温性能随着掺量的上升变化趋势并不明显。最后建议河北省耐久性高模量项目工程(承赤高速试验段)最适宜的添加剂掺量。
The paper studied separate additive in different three the high- low temperature performance dosages. The two additives were named were 5%, 7% and 10. 5%. The dynamic shear theological test and beam of two high modulus asphalts with ZQ -2 and ECB and three dosages bend test at low temperature were carried out to evaluate the theological property of high modulus asphalts. The study indicated that the high modulus asphalts with ZQ -2 had a clear trend that the high temperature performance enhanced and the low temperature performance declined when the dosage was increased, however the trend was not obvious to the as- phalts with ECB. The paper finally provided the most suitable additive dosage used in durable high modulus project engineering in Chengde city of Hebei province.
出处
《石油沥青》
2014年第1期6-9,共4页
Petroleum Asphalt
