無機聚合樹脂粘貼CFRP試體之高溫性質研究

On the performance of CFRP Confined Concrete using Geoplymer under high temperature

陳慶修(Cing-Siou Chen)

指導教授 ： 吳傳威

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2006年)

摘要

近年來環氧樹脂粘接材料被大量使用在結構補強，姑且不論其粘結效果，而其不耐高溫及紫外線之性質確實產生許多問題。前期研究結果即顯示以環氧樹脂包覆CFRP之混凝土試體，在溫度達超過100°C時圍束效果即開始下降，在250°C ~300°C失去束圍束效果，且加溫至300°C以上時，包覆CFRP之混凝土試體就可能突然瞬間爆裂毀壞。
本研究以實驗的方式探討新發展的「無機聚合樹脂」替代環氧樹脂之可行性。本實驗使用強度為185.2kgf/cm2 及350kgf/cm2 之試體，分別進行包覆一層和二層CFRP包覆及10cm、15cm、20cm不同連接重疊長度之圍束抗壓和定載加熱實驗，發現以「無機聚合樹脂」取代EPOXY進行CFRP包覆補強，確實可以提供圍束效果，且高溫性能明顯優於EPOXY。

關鍵字

碳纖維圍束 ； 無機聚合樹脂

並列摘要

In the recent years, epoxy has been massively used as a bonding material during structure retrofit. However, let alone its bonding effect of strengthening, the properties of poor temperature and ultraviolet resistance would cause serious problems. The results of preceding research revealed that for concrete cylinders covered by CFRP using epoxy as bonding material, the effect of confinement started reducing at 100°C and lost completely when the temperature reached 250~300°C.
The present research is aimed at investigating experimentally the possibility of using the newly developed inorgenic geopolymer to replace epoxy as bonded material applied between concrete cylinder and CFRP jacket. Concrete cylinders with strength of 185.2 and 350 kgf/cm2 were used to cover one and two layers CFRP by 10, 15, and 20 cm overlap. It is found that the effect of confinement indeed exists, and the property of temperature resistance is obviously better than that of using epoxy.

並列關鍵字

CFRP jacket ； geopolymer

參考文獻

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