建築和拆除廢棄物可應用於混凝土，以降低骨材成本，減少其碳足跡，以有利於環境永續。本研究使用營建廢棄物中水泥混凝土塊破碎後所產生的再生骨材，變化水膠比、天然骨材及再生骨材以製作4組再生膠結混凝土樣品，每組樣品各製作兩個圓柱試體，施作抗壓試驗及滲透試驗。試驗結果顯示，抗壓強度與滲透性成反比，抗壓強度越高則透水性越低。再生骨材取代率25%，抗壓強度最高，滲透性最差，其原因為細粒料再生骨材填充孔隙而降低透水率；當天然骨材和再生骨材各為50%時，因再生骨材吸水率較高，使滲透性隨之提高，但抗壓強度最小。 Construction and demolition waste can be applied to concrete to reduce the cost of aggregates and reduce their carbon footprint to contribute to environmental sustainability. This study analyzed the compressive strength and the permeability, of the regenerated cemented concrete mixed under different ratios. According to the ratio of fixed water-cement ratio, natural aggregate and recycled aggregate, this study designed four kinds of ratio, and made two samples for every ratio. Experimental outcomes showed that the compressive strength is inversely proportional to the permeability. A concrete with high compressive strength usually has a low permeability. When the ratio of recycled aggregate = 25%, the concrete reaches a highest compressive strength and a lowest permeability, because fine-grained aggregate filling the porosity of concrete. However, when the ratio of recycled aggregate = 50%, the concrete reaches a highest permeability and a lowest compressive strength.
