摘要
用于地下结构的混凝土抗渗等级一般要求不低于0.8MPa(即S8).定抗裂要求的特殊混凝土.通常采用硅酸盐水泥、粉煤灰水泥和火山灰水泥,选用325号或425号;砂石料颗粒洁净、级配良好、质地坚硬;骨料含泥量小;含砂率控制在35%～40%.施工中掺入粉煤灰、矿渣、硅粉等,加入减水剂、膨胀剂.该文还具体介绍了施工安排、施工要求、混凝土浇筑、养护等.
Introduced here is how to control the permeability and cracking of concrete with hardening mechanism of impermeable concrete, as well as the construction technology of impermeable concrete for the reference of similar construction projects.
出处
《中国市政工程》
2004年第1期59-61,64,共4页
China Municipal Engineering
