The Study of Foam Geopolymer Performing at High Temperature

• Main Authors: Chu-Ching Huang, 黃竹慶
• Other Authors: 吳傳威
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/t5y8d4

碩士 === 國立臺北科技大學 === 土木與防災研究所 === 103 === The present research added aluminum powder to the geopolymer to form an uniformly distributed pores. It would not only help in reducing the weight, but also effectively isolating the heat and hopefully would satisfy the requirement of CNS12514 specification. A preliminary study was made by taking the ratio of aluminum powder as well as the times of mixing as parameters. 12cm diameter circular test cakes were made to testify the performance in forming and cracking process and a data bank was established accordingly. Then, the most efficient four formula were adopted to made the formal 20 cm diameter round specimen for experiment. A special designed oven was used to heat one side of the specimen by CNS12514 standard temperature increased curve, and the temperatures at the 5 locations in the back were measured every minute up to a duration of 7 hours.. The results revealed that the best performance was given by the case of adding 0.05% of aluminum powder, and when the mixing time was 5 minutes, the back temperature after one hour of heating was only 81 ℃. The back temperature after one hour of heating were not exceed 260 ℃ for all the specimen. It is indeed satisfied the requirements of Class A (resistive heat) fire door, and showed an essentially valuable in filling fire resistant doors.