The results indicate that surface treatment of expanded shale lightweight aggregate with a hydrophobic surface, decreases the water adsorption of the aggregate at early and later ages.

• 轻集料混凝土已在结构工程中得到广泛应用,轻集料表面状态、形状和吸水性对轻集料混凝土需水量和工作性能有很大影响。