摘要
为提高玄武岩纤维钢渣粉混凝土早龄期抗压强度,用磁化水代替普通水拌制混凝土。采用10种不同水流量流经磁化器后的水分别搅拌混凝土,进行混凝土早龄期抗压强度试验后选出合适水流量。合适水流量流经磁化器后的水分别搅拌10%、12%、14%、16%和18%不同钢渣粉掺量下玄武岩纤维钢渣粉混凝土,再进行早龄期抗压强度试验,得出合适的钢渣粉掺量。试验结果表明:玄武岩纤维掺量3 kg/m^3和钢渣粉掺量15%时,合适水流量为16 L/min。磁化水加快了混凝土水化速率,生成更多水化产物,有效填充了结构中孔隙,混凝土强度得到提高。7 d抗压强度达到最大值26.4 MPa,较未用磁化水搅拌的混凝土早期强度增长15.3%。钢渣粉合适掺量范围为12%~15%。
In order to enhance the early-age compressive strength of basalt fiber reinforced steel slag powder concrete,the magnetic water was used to take place of ordinary water in mixing procedure. Experiments of the early-age compressive strength of concrete were conducted to select suitable water flow when ten different types of water flow that flowed through the magnetizer respectively in mixing concrete. When the suitable water flow flowed through magnetizer,the experiments of early-age compressive strength of basalt fiber reinforced steel slag powder concrete were respectively conducted with 10%,12%,14%,16% and 18% amounts of steel slag powder,and the suitable amount of steel slag powder was obtained. The results indicated that the suitable water flow was 16 L/min when the basalt fiber value was 3 kg/m^3 and the steel slag powder value was 15%. The magnetic water accelerated hydration rate of concrete,generated more hydration products,and filled the pores in concrete structure effectively,which improved the strength of concrete. Meanwhile the 7-day compressive strength of concrete reached maximum 26. 4 MPa,which increased by 15. 3% compared with the early-age compressive strength of basalt fiber reinforced steel slag powder concrete without using magnetic water. And the reasonable dosage of steel slag powder ranged 12% ~ 15%.
出处
《安徽理工大学学报（自然科学版）》
CAS
2017年第5期25-28,共4页
Journal of Anhui University of Science and Technology:Natural Science
关键词
玄武岩纤维
钢渣粉
抗压强度
磁化水
水流量
basalt fiber
steel slag powder
compressive strength
magnetic water
water flow
