| 粉煤灰及聚羧酸减水剂在压浆料中的应用 |
| Application of Fly Ash and Polycarboxylate Superplasficizer in Duct Grouting Materials |
| 投稿时间：2011-11-09 |
| 中文关键词:预应力混凝土 孔道灌浆 压浆料 |
| 英文关键词:prestressed concrete duct grouting fluidity stability durability strength |
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| 中文摘要: |
| 针对后张法预应力混凝土孔道灌浆中容易出现的质量问题及新桥规的具体要求，提出掺加粉煤灰改善浆体的技术性能。研究了粉煤灰对浆体流动性、稳定性、耐久性和强度发展的影响。经过试验，得出结论：粉煤灰在一定掺量范围内可以改善浆体的流动性、稳定性和耐久性，掺量在30%以内早期强度可以满足规范要求。 |
| 英文摘要: |
| In this paper, the performance of grouting materials is improved by fly ash and polycarboxylate superplasficizer according to the new bridge specification and in the light of common faults which appear frequently in prestressed concrete with post tensioning method. The fluidity, stability, durability and strength of grout are studied. |
| 黄晓静.粉煤灰及聚羧酸减水剂在压浆料中的应用[J].石家庄铁道大学学报：自然科学版,2011,(4):101-. |
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