①选用粘度高、针入度小、软化点高和含蜡量低的沥青。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²
②用外掺剂改性沥青。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²
③采用粒径较大的矿料和间断级配。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²
④保持矿粉与沥青之比为1~1.2。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²
⑤除上面层外,采用略小于马歇尔试验的最佳沥青用量。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²
⑥马歇尔试验结果混凝土的孔隙率不小于4%。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²
⑦采用较高的压实度。± ã¶Þ bbs.3c3t.comç¤g1Ð>%²