引用本文摘 ? 要：利用物理、化學、高溫方式對再生磚粉進行了活性激發，測試其活性指數，并研究了活性最高再生磚粉的取代率對超高性能混凝土（UHPC）抗壓性能、抗折性能和劈裂抗拉性能的影響。結果表明：物理、化學、高溫方式均有助于激發再生磚粉的活性，其中，球磨45 min再生磚粉的活性最高，為71.4%；再生磚粉UHPC的力學性能與再生磚粉取代率呈負相關；當再生磚粉取代率為10%時，再生磚粉UHPC的力學性能接近基準組。 Abstract: The physical, chemical and high temperature methods were used to activate the recycled brick powder, and its activity index was tested, and the effect of the replacement rate of the most active recycled brick powder on the compressive, flexural and split tensile properties of UHPC was studied. The results show that the physical, chemical and high temperature methods are helpful to stimulate the activity of recycled brick powder, and the activity of recycled brick powder is the highest at 71.4% by ball milling for 45 min. The mechanical properties of recycled brick powder UHPC are negatively correlated with the replacement rate of recycled brick powder. When the recycled brick powder replacement rate is 10%, the mechanical properties of recycled brick powder UHPC are close to those of the reference group.
杜明芳,趙永強,遆永新,等.活性激發再生磚粉對UHPC力學性能的影響[J].混凝土與水泥制品,2021(6):91-94. DU M F,ZHAO Y Q,TI Y X,et al.Effect of Activated Recycled Brick Powder on Mechanical Properties of UHPC[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):91-94.