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  • 學位論文

廢棄矽酸鈣板再利用於無機聚合物之研究

Development of Material on Geopolymer Adding Powder of Calcium Silicate Board

指導教授 : 吳傳威

摘要


本研究嘗試將廢棄矽酸鈣板磨成粉末,以重量比為變數來探討矽酸鈣板粉末取代無機聚合物中變高嶺土的可行性,並將矽酸鈣板粉末添加於無機聚合物中,以研究其各種性能。試驗首先將矽酸鈣板粉末以0%至100%間取4種重量比例取代變高嶺土,測試其物理性能與抗壓強度等力學性能。並且嘗試將矽酸鈣板粉末以變高嶺土0%至50%的重量添加於無機聚合物中,以瞭解整體效應。研究結果發現,當矽酸鈣板粉末由25%至75%取代變高嶺土時,其平均抗壓強度會較完全未取代變高嶺土時慢慢降低,至100%取代變高嶺土時,其平均抗壓強度較75%取代變高嶺土稍微提升,並且發現流度值並未隨著矽酸鈣板粉末添加量多寡而有太大改變,表示矽酸鈣板粉末取代變高嶺土時,其抗壓強度會隨著添加比例增加而減少,但工作性差異不大,因此若設計強度不高時,矽酸鈣板粉末是一種可以節省經費又能維持工作度的材料,另外於原配比中添加矽酸鈣板粉末,確實可提升早期及晚期強度,因此確定廢棄矽酸鈣板的確可再利用於無機聚合物中,發揮垃圾變黃金的價值。

並列摘要


This research intends to powder abandoned calcium silicate board in order to find the possibility of calcium silicate board powder which could be instead of metakaolin. We consider powder weight as a variable and add the powder into geopolymer to find different possibilities. In the beginning, we take 4 range weights from 0% to 100% calcium silicate board powder to test its mechanics, including physical property and resist compression. In addition, we use calcium silicate board powder instead of metakaolin and put it into geopolymer from 0% to 50% different weights to research entire effect. We found from the result that when we increase the powder weight from 25 % to 75%, the resist compression is lower than 100% in 28 days average. In the other words, when calcium silicate board powder fully instead of metakaolin , the resist compression is better than 75% weight. In the meanwhile, the solidity doesn’t change much when we increase the powder weight. This means even though 28 days’ resist compression will decrease due to raise powder proportion, the function has no big difference. Thus, if the fore design doesn’t require too much, calcium silicate board powder is a good choice to down cost. Furthermore, add extra calcium silicate board powder could enhance the resist compression in the beginning and the end period. We could be sure that abandoned calcium silicate board could truly recycle and be used in geopolymer --- from trash become gold.

參考文獻


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