|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2010年08 期
| 標(biāo)題 |
| 預(yù)制軌道板混凝土配制技術(shù)(50 卷) |
| 英文標(biāo)題 |
| Technology of mix proportion of concrete used for CRTS II-type prefabricated track slab |
| 摘要 |
| 軌道板設(shè)計混凝土等級為C55，16 h預(yù)應(yīng)力放張時混凝土抗壓強(qiáng)度不低于48 MPa，彈性模量不低于36 GPa。分析了使用通用硅酸鹽水泥摻普通摻合料和非緩凝型聚羧酸減水劑配制軌道板混凝土技術(shù)，并進(jìn)行了配合比試驗和試生產(chǎn)。結(jié)果表明，使用擁有自主知識產(chǎn)權(quán)的軌道板混凝土材料體系， |
| 作者 |
| 新聞作者:朱建立，任尚華，李興旺 |
| 關(guān)鍵字 |
