protective concrete layer

基本解釋

Secondly , protective layer thickness is too thin to protect concrete reinforced bar and reduce durability.
保護(hù)層厚度不夠?qū)е落摻钔饴兑痃n蝕，降低了橋梁的耐久性；
The calculation method about the minimum lining thickness of concrete protective layer is given in the cold region.
提出了寒區(qū)混凝土防護(hù)層渠道最低襯砌厚度的計(jì)算方法。
To evaluate the full-span durability life of reinforced concrete structure, the expanding process of corrosive crack in protective layer concrete is studied in this paper.
爲(wèi)了對(duì)鋼筋混凝土結(jié)搆的耐久性全壽命進(jìn)行評(píng)估，研究了保護(hù)層混凝土鏽脹裂縫的擴(kuò)展及過(guò)程。