However, this strength can open the door for poorly configured systems that don't support future expansion, changing development standards and protocols, and robust security.
Addition of silica fume into the mix will result in increasing the workability and strength of cement mortar and decreasing the expansion.
同时掺加硅灰还能够提高掺玻璃纤维高钙粉煤灰水泥砂浆的和易性和强度，并减小其膨胀。
3
Closed pore perlite overcome traditional expansion perlite bibulous rate and low strength of large, fluidity, and the characteristics of the poor, outspread expansion perlite application fields.