公开(公告)号：US09260608B2

公开(公告)日：2016-02-16

申请号：US13866166

申请日：2013-04-19

申请人： MeadWestvaco Corporation

发明人： Everett Crews ,  Iain Jack ,  Tom Girardeau

IPC分类号： C08L95/00 ,  C08K5/19

CPC分类号： C08L95/005 ,  C08K5/19

摘要： A bituminous composition comprising a bitumen emulsion in an amount from about 2% to about 10% by total weight of the bituminous composition, and aggregate in an amount from about 90% to about 99% by total weight of the bituminous composition, wherein the bituminous composition is at a temperature range of about 50° C. to about 140° C. The bitumen emulsion comprises hard bitumen in an amount from about 50% to about 75% by total weight of the bitumen emulsion, the hard bitumen being characterized by a penetration number of about 100 dmm or less at 25° C. as determined according to the AASHTO Method T49, and an emulsifier in an amount from about 0.05% to about 2% by total weight of the bitumen emulsion, the emulsifier having a Hildebrand solubility parameter of at least of about 19 (MPa)½. Also disclosed are the methods of producing and using such bituminous compositions.

摘要翻译： 含沥青组合物的总重量为约2％至约10％的沥青乳液和沥青组合物的总重量的约90％至约99％的沥青组合物，其中沥青 组合物在约50℃至约140℃的温度范围内。沥青乳液包含按沥青乳液总重量计约50％至约75％的硬沥青，硬沥青的特征在于 根据AASHTO方法T49测定的在25℃下的约100dmm或更小的渗透数量和以沥青乳液总重量计约0.05％至约2％的量的乳化剂，乳化剂具有希尔德布兰氏溶解度 参数至少约为19（MPa）1/2。 还公开了生产和使用这种沥青组合物的方法。