公开(公告)号：US4235640A

公开(公告)日：1980-11-25

申请号：US47880

申请日：1979-06-12

Applicant: Bruce P. Cox ,  David P. DeVries

Inventor： Bruce P. Cox ,  David P. DeVries

IPC: C04B20/10 ,  C04B31/42

CPC classification number: C04B20/1044 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/4935

Abstract: A lightweight aggregate for use in making concrete which comprises scoria aggregate with the individual particles of the aggregate being impregnated with a slow or medium setting asphalt emulsion in an amount sufficient to materially reduce the absorption rate of the scoria aggregate.

Abstract translation: 用于制造混凝土的轻质骨料，其包含熔融聚集体，其中聚集体的各个颗粒浸渍有足够大量以显着降低水溶性聚集体的吸收速率的缓慢或中等凝固的沥青乳液。