The paper carried out research on characteristics of grit with weak expanded clay from mineral composition, grain, dilatability, compaction, permeability and strength.

• 摘要针对燕山水库弱膨胀黏土质砂砾岩能否作为坝体填料这一问题，从矿物组成、颗粒级配、膨胀性、压实性、渗透性、强度等方面对其工程特性进行了研究。