【摘要】 研究了CO2用量。水玻璃密度、真空度以及温度和湿度对VRH-CO2法水玻璃砂常温抗压强度和残留强度的影响。实验结果表明:当工艺参数适当时,VRH-CO2法硬化的水玻璃砂比普通CO2法硬化的水玻璃砂具有更高的常温抗压强度和更低的残留强度。更多还原

【Abstract】 In this paper,the effect of the CO2 consumption,sodiumilicate density, vacuum,as well as the temperature and humidity of enviroment on the compression strength in ambient temperature and the residual strength of the sodium silicate sand hardened by VRH O2 proces is studied.The results show that,which proper technological parameters the sodium silicate sand hardened by VRH O2 process has a higher compression strength in ambient temperature and a lower residual strength than that one by CO2 process.更多还原