基材板含水率與磁磚黏著劑用水量多寡之交互影響之研究

A study of interaction influence on moisture content of based Plant and water Amount of tile adhesive

黃律圍(Lu-Wei Huang)

指導教授 ： 詹益臨

健行科技大學/工程學院/土木工程系空間資訊與防災科技碩士班/碩士(2018年)

摘要

本研究探討施工過程中用水量之多寡與牆體基材吸水率之交互影響，主要方法利用不同乾燥程度之基材板模擬現場牆體之乾燥度，並以不同用水量模擬實務上工班加水之習性進行討論。
研究結果顯示：(1)原廠所建議之用水量為26 ~ 28%，施工性最好，黏度佳，且於貼附磁磚時不易滑移。(2)磁磚黏著劑於攪拌完成後應於30分鐘內使用完畢，避免表面成膜而降低黏度。(3)開放時間與基材板之含水率有極大關連，過度乾燥之板材易造成磁磚黏著劑水分散失過快，加速其表面成膜，因而無法有效沾黏於磁磚背溝。(4)基材板若於濕潤狀態，如雨天施工時，雖具有較長之開放時間，但也因板材過度濕潤，於塗佈磁磚黏著劑時易造成黏著劑自身滑移與垂流。(5)適當之含水狀態應為面乾內飽和狀態，實務上即為施作前先潤濕牆體達飽和狀態，待其表面風乾再行施作，可使塗佈磁磚黏著劑時具有較佳之開放時間與硬固後較佳之附著強度。(6)磁磚黏著劑之強度於7天齡期時即可發揮28天附著強度約90 ~ 97 %，因此7天的現場拉拔強度即可供參。

關鍵字

袋裝水泥砂漿 ； 磁磚黏著劑 ； 開放時間 ； 拉拔強度

並列摘要

This research is focused on the interactive effects between the amount of water used in the construction process and the water absorption of the wall, and uses different saturation degrees of board to simulate the wall of real situation of construction site , and uses different amounts of water to simulate the practical work. The results show that: (1) According to the original factory, the recommended water consumption is 26 to 28%. The workability viscosity is the best when attaching tiles. (2) The tile adhesive should be used within 30 minutes after stirring to avoid forming film and reducing viscosity. (3) The open time is greatly related to the moisture content of the substrate sheet. The over-dried sheet can easily cause the water loss of the tile adhesive to be dissipated too quickly and accelerate the forming film on the surface, and thus it cannot be effectively adhered to the back groove of the tile. (4) If the substrate sheet is used in wet conditions, such as construction on rainy days, although it has a longer opening time, it is also excessively wet due to the sheet, and it is easy to cause slippage and vertical flow of the adhesive itself when the tile adhesive is applied. (5) Appropriate water-containing state should be saturated within the surface dry, in practice, it is to wet the wall before reaching the saturation state, and when the surface is air-dried, it can be applied again, so that it can be coated with a tile adhesive. Better open time and better adhesion strength after hard fixing. (6) The strength of the tile adhesive can exert an adhesive strength of about 90 to 97% on the 28th day at the age of 7 days. Therefore, it can be referred to by the actual 7-day on-site pull-out test.

並列關鍵字

package cement mortar ； tile adhesive ； opening time ； pull-out strength

參考文獻

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