divided-coarse aggregate 中文意思是什麼
divided-coarse aggregate
解釋
多粒級集料-
The design strength of the new concrete is c40, which adopts 525 # common portland cement, the sand is middle wide river - sand, the radius of coarse aggregate is 10 - 30mm. the surfaces of the old concrete which are harnessed are divided into i, ii, iii three type faces
Znfl , ao新混凝土設計強度等級選用c40 ,採用525 』普通硅酸鹽水泥,砂是中粗河砂,粗骨料的粒徑為川30mm 。老混凝土表面處理后的表面分為1型面、 11型面、 ill型面三種類型。
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