- 祖慶賀1,2,臧 軍2,沈曉冬1
2019年第8期
摘要
引用本文
摘 要:用粒度區間為45~80 μm的較粗鋼渣微粉作為摻合料進行了UHPC的應用研究,試驗結果表明,與基準混凝土相比,45~80 μm鋼渣微粉在UHPC中以5%摻量取代水泥和復合摻合料后,UHPC的孔隙率降低、孔徑分布得到優化、塑性黏度降低了42 Pa·s、流動性能提升(V漏斗排空時間減少了20 s)、28 d抗壓強度提高了10~12 MPa、抗折強度提高了2~3 MPa。
Abstract:The coarse steel slag powders with particle sizes ranging from 45 to 80 μm was used in ultra high performance concrete (UHPC) to enhance the properties of concrete. The results show that compared with the reference concrete, when the cement and fly ash in concrete replaced by coarse steel slag powders (45~80 μm) with a concentration of 5%, the porosity of UHPC is reduced, the pore size distribution is optimized, the plastic viscosity is reduced by 42 Pa·s, the flow performance is improved (V funnel emptying time is reduced by 20 s), the 28 d compressive strength is increased by 10~12 MPa, and the flexural strength is increased by 2~3 MPa.
祖慶賀,臧軍,沈曉冬.粗粒度區間鋼渣微粉在UHPC中的應用研究[J].混凝土與水泥制品,2019(8):1-4.
ZU Q H,ZANG J,SHEN X D.Application Study of Steel Slag Fine Powders with Coarse Particle Sizes Rang in Ultra High Performance Concrete (UHPC)[J].China Concrete and Cement Products,2019(8):1-4.