The research on concrete permeability to gasoline containing the admixtures of fly ash, superplasticizer, air-entraining agent or UEA expansive agent has been conducted in a cryogenic pressure vessel.

• 在低温压力容器内，分别对掺粉煤灰掺合料和高效减水剂、引气剂、UEA膨胀剂等外加剂混凝土进行低温抗渗汽油试验。