论文部分内容阅读
该文以珊瑚砂作为细骨料来配制C30珊瑚砂混凝土,研究了粉煤灰、矿粉、偏高岭土对珊瑚砂混凝土的力学性能、氯离子扩散系数影响规律,并通过XRD、TG对其微观机理进行初步分析。研究结果表明,掺加粉煤灰会降低珊瑚砂混凝土的强度,矿粉对于珊瑚砂混凝土的强度影响较小,而掺加偏高岭土会明显提高珊瑚砂混凝土的抗压强度和降低氯离子扩散系数,减少Ca(OH)_2的含量,使珊瑚砂混凝土的渗透性能得到优化。
In this paper, coral sand as a fine aggregate to prepare C30 coral sand concrete, fly ash, slag, metakaolin on the mechanical properties of coral sand concrete, chloride ion diffusion coefficient of law, and by XRD, TG microscopic Mechanism for a preliminary analysis. The results show that the addition of fly ash will reduce the strength of coral sand concrete, slag powder has little effect on the strength of coral sand concrete, while the addition of metakaolin will significantly improve the compressive strength of coral sand concrete and reduce the chloride diffusion coefficient , Reduce the content of Ca (OH) _2, so that the permeability of coral sand concrete can be optimized.