The Procedure and Basic Character of Bricklaying Used Syrup-lime Mortar in Taiwan during The Ching-Dynasty

• Main Authors: wang long-sheng, 王龍盛
• Other Authors: Heidi Wang
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/65112137663855004309

碩士 === 國立臺灣科技大學 === 建築系 === 91 === There are many researches of Taiwan’s brick building on the buildup method, material usage and mechanics behavior after Japan-colonized period but few before that period. For that, this research tries to concretize the traditional buildup method and record the usage of materials scientifically of brick building before Japan-colonized period. And the maintenance of historic building must follow the historic method to reduce the mechanics problem caused by the different strength and inferior quality of new materials or the incorrect work method. This study probes into the correct maintenance method of brickwork historic building, puts emphasis on finding out a work process which can be followed and provide a calculable complex-materials rate. Hope to prevent the failure of the maintenance engineering. The conclusion from experiment and analysis is as below: 1. Strength of Syrup-lime mortar is supported by C12H20O11Ca and CaCO3. 2. Final setting time of Syrup-lime mortar is about 35 hours. 3. Syrup-lime mortar will decompose in water when it has not strengthened. 4. Appropriate mole-ratio of syrup to lime of Syrup-lime mortar is about 1:120. 5. Appropriate Water to binder ratio is about 0.7, which affects strength and volume stability of Syrup-lime mortar. 6. Number of beats has nothing to do with strength but is positive to promote workability. 7. Adding sand into Syrup-lime mortar can promote volume stability, also strength and workability. 8. Absorption capacity has nothing to do with strength of entirety brick-wall except dryness condition. 9. Mortar setting way（whole surface or quadrilateral）in building process has nothing to do with strength. The result could be the maintenance guide according to the systematical research on the quantity contained of sugar and sand, number of pound, water to cement ratio, solidification time and cement setting type. Also could be reference material of other relative issues hereafter.