無機聚合物膠合夯土材料應用於古蹟及歷史建築修復之可行性探討

On the Practicability of Retrofitting Historical Buildings Using Rammed Earth Materials Adding Geopolymer

江紀儒(Chi-Ju Chiang)

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(2012年)

摘要

夯土材料來自天然，取得容易，施作簡便且價格低廉，早期常用於構築居所及房舍，保存至今即成為古蹟及歷史建築。夯土屬未經強化之原始材料，其抗潮性低，抗壓及抗剪性能皆不佳。縱使古人曾就其原料配比以及製作和施工方式等多方面改良，企圖增強性能，但效果有限。依據「文化資產保存法」之條文，對於古蹟及歷史建築之修復，有必要時得採用現代科技與工法。本研究因此使用近年來在膠結方面有突出表現之無機聚合物，嘗試以不同比例掺入原始夯土材料，以提升其基本物性。實驗結果得知，所製作之膠合夯土磚的抗壓強度可達20 ~ 200 kgf/cm2，遠超過古蹟夯土磚之8 kgf/cm2，及現有磚廠製夯土磚之15 kgf/cm2。同時其抗潮性亦大幅提昇，且可回收再利用，對於作為古蹟及歷史建築夯土結構之修復甚至補強之材料，其可行性甚為樂觀。

關鍵字

古蹟及歷史建築 ； 夯土 ； 無機聚合物 ； 抗壓強度 ； 回收再利用

並列摘要

Rammed earth material, known to be readily available, easily handled and cheap in price, was widely used in the earlier age to construct housings and residences, and preserved to date were becoming monuments and historical buildings. Rammed earth is an un-strengthened raw material. Its general properties such as compressive and shear strength are weak, and bad damp resistant. Although the ancients had attempted to improve those by using different raw materials, or amending the manufacturing procedures, the effects seemed limited. According to the “Cultural Assets Preservation Law”, modern technology and techniques can be applied if necessary to retrofit the monuments and historical buildings. The present research is thus making use of a lately developed adhesive material, namely geopolymer, add into the raw rammed earth in various formula to try to improve their general properties. The experimental results showed that the compressive strength of the coherent rammed earth bricks were 20 ~ 200 kgf/cm2, much higher than the ancient rammed earth bricks (8 kgf/cm2), and the rammed earth bricks from modern factories (15 kgf/cm2). In the mean time, the property of damp resistance was improved tremendously, and also proven recyclable. The practicability of repairing monuments and historical buildings is optimistic.

並列關鍵字

historical buildings ； rammed earth ； Geopolymer ； compressive strength ； recycle and reuse

參考文獻

[17] 楊欽雄、方禎璋、吳傳威，「無機聚合樹脂應用於混凝土試體包覆FRP補強之耐高溫研究」中華民國第九屆結構工程研討會，2008。

[30] 許太瑋，「發泡無機聚合膠脂包覆FRP補強混凝土耐高溫研究」，碩士論文，國立台北科技大學土木與防災研究所，2009。

[21] 戴詩潔，「高嶺石鋁矽酸鹽聚合材料之研究」，碩士論文，國立台北科技大學資源工程研究所，台北，2005。

[29] 王奕惟，「發泡無機聚合物之開發及耐熱性能研究」，碩士論文，台北科技大學土木與防災所，台北，2009。

[16] 高光明「GEOPOLYMER固化土壤新力軍」，材料應用篇，營建知訊第302期，台北，2003。