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(One hundred questions on waterproofing) #91Coming to the topic, can colored PU or EPOXY series materials be used to waterproof the brick-built flowerbed?
Answer:
不宜。因為
彩色PU或EPOXY防水材料之施工素地面須完全乾燥,然而砌磚之花台含水率極高,即使天晴一個月以上其紅磚內部之含水率恐部都在8%以上。如冒然施工,將會有鼓起、脫落等現象,失去防水意義。
採用PU或EPOXY材料防水施工必須先作水泥砂粉刷打底,則上面的防水層常會受制於該粉刷打底層品質之優劣──無法達到長期的防水功效。
彩色PU系列長期浸泡在水中會產生水解、膨潤現象。
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(One Hundred Questions on Waterproofing)#90 What kind of waterproof material should be used for flower beds constructed with bricks for roofing, terraces, and courtyards? What are the key aspects to consider in terms of design?
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