Effects of polypropylene fiber (PPF) on properties of phosphate cement-based concrete, such as flowability, operabletime, flexural and compressive strength were investigated.
主要研究了聚丙烯纤维(PPF)对磷酸盐混凝土性能如流动性、可操作时间、抗折和抗压强度的影响。
2
The deluge core of the utility model has the advantages of good high temperature resistance, impact resistance and good breaking effect of a riser and operabletime of an opening flask.
本实用新型雨淋芯具有很好的耐高温、耐冲击性，以及良好的冒口拔断效果及开箱可操作时间。
3
The method includes receiving time-of-day in a synchronous cellular communication signal with the user equipment operable in a synchronous cellular communications mode.