完整后设资料纪录
DC 栏位 | 值 | 语言 |
---|---|---|
dc.contributor.author | 林信宏 | en_US |
dc.contributor.author | Lin, Shin-Hong | en_US |
dc.contributor.author | 赵文成 | en_US |
dc.contributor.author | Jau, Wen-Chen | en_US |
dc.date.accessioned | 2014-12-12T01:48:14Z | - |
dc.date.available | 2014-12-12T01:48:14Z | - |
dc.date.issued | 2010 | en_US |
dc.identifier.uri | http://140.113.39.130/cdrfb3/record/nctu/#GT079816503 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/47260 | - |
dc.description.abstract | 台湾位于环太平洋地震带,地震发生的次数非常频繁。自921地震后地震力之提升,工程界开始注重耐震设计,结构物钢筋用量增加,多数设计间隙更密集,在进行水中浇置时,传统水中混凝土与高流动性水中混凝土的工作度与水中性能已不符合需求。若是采用同时拥有自充填特性以及水中不分散能力的高性能水中自充填混凝土,便能避免混凝土因施工不良所造成的缺陷。 本研究以自充填特性与水中不析离,以及抗冲离的能力为目标,比较不同的水中混凝土配比。测试新拌混凝土:工作度、水中L型流度、浊度值、pH值、抗冲离试验。为了模拟现地施工,在水中浇置时使用特密管工法制作试体,在混凝土硬固后,尝试放置于不同环境,如空气、淡水、海水、淡水干湿循环、以及海水干湿循环,结果显示水中自充填混凝土在各种环境下水中浇置与空气浇置的强度比皆大于0.9并优于其它水中混凝土。进行RCPT时水中自充填混凝土于水中浇置之总电荷量大致上为其它水中混凝土的1/2。而氯离子扩散深度试验水中自充填混凝土水中浇置与空气浇置的氯离子含量差异最小,而其它水中混凝土水中浇置与空气浇置的氯离子含量差异甚大,显示水中自充填混凝土于水中浇置时完整性高。经由一系列试验发现水中自充填混凝土品质优良,可大量应用于地下与水下结构物中。 | zh_TW |
dc.description.abstract | Underground and underwater structures are important members to resist both gravity and horizontal forces, such as earthquake forces. However, it is very difficult to guarantee the quality of the construction, since no vibration is possible and underground water around the members. This is especially true after the 921 earthquake, because the design peak ground acceleration was increased. Various types of concrete were employed to compare the fresh and hardened properties. The fresh properties include flow distance in L test, turbidity, pH, self-compacting and anti-washout abilities. The hardened properties included the strength development and durability test under sea water environment. It is found that the underwater SCC has the best performance compared to conventional underwater concrete and anti-washout concrete and shall be used for underground and underwater strucutes. | en_US |
dc.language.iso | zh_TW | en_US |
dc.subject | 水中自充填混凝土 | zh_TW |
dc.subject | L型流度 | zh_TW |
dc.subject | 浊度 | zh_TW |
dc.subject | pH值 | zh_TW |
dc.subject | underwater self-compacting | en_US |
dc.subject | L-test | en_US |
dc.subject | turbidity | en_US |
dc.subject | antiwashout | en_US |
dc.title | 水中自充填混凝土耐久性之研究 | zh_TW |
dc.title | The Durability of Underwater Self-Compacting Concrete | en_US |
dc.type | Thesis | en_US |
dc.contributor.department | 土木工程学系 | zh_TW |
显示于类别: | Thesis |