In almost all applications of concrete components, both the transport of substances such as chlorides, sulphates, acids, CO₂, etc. through the pore structure into the concrete and the resulting local chemical and physical processes have a negative effect on the lifetime of the structure. Most data are actually obtained from layer-by-layer mechanical sampling of, for instance, bore dust, followed by chemical analysis. Several groups have previously demonstrated the enormous potential of LA-ICP-MS for monitoring these multi element processes both qualitatively and quantitatively and with high spatial resolution. However, there has been no fundamental investigation of laser-material interaction, aerosol particle formation, fractionation analysis or the effect of cement-specific parameters such as the water to cement (w/c) ratio on signal intensity. This paper presents the ablation mechanisms of a frequently used 213 nm quintupled Nd:YAG ns laser operating on the HCP (hardened cement paste) multi-phase system in comparison with amorphous and well-characterized NIST 612 glass. It includes energy-signal considerations, crater evaluations after multiple shots using different energy densities and aerosol structures captured on filters. The investigation determined a linear energy to signal behavior in a range of 2–6 J/cm², while the ablation mechanism is different to common mechanisms obtained for glass or brass. The aerosol captured on the filter material displays cotton-like structures as well as defined spherical particles, which is comparable to observations made with NIST glass aerosols.

在混凝土构件的几乎所有应用中，包括氯化物、硫酸盐、酸、CO ₂等物质的传输等通过孔隙结构进入混凝土，由此产生的局部化学和物理过程对结构的寿命有负面影响。大多数数据实际上是通过逐层机械采样获得的，例如钻孔粉尘，然后进行化学分析。几个小组之前已经证明了 LA-ICP-MS 在定性和定量监测这些多元素过程以及高空间分辨率方面的巨大潜力。然而，还没有对激光-材料相互作用、气溶胶颗粒形成、分馏分析或水泥特定参数（如水对水泥（w / c）的影响）进行基本调查。) 信号强度的比率。本文介绍了在 HCP（硬化水泥浆）多相系统上运行的常用 213 nm 五重 Nd:YAG ns 激光器的烧蚀机制，与无定形和良好表征的 NIST 612 玻璃进行比较。它包括能量信号考虑、使用不同能量密度进行多次射击后的火山口评估以及过滤器上捕获的气溶胶结构。调查确定了信号行为的线性能量在 2–6 J/cm ²范围内，而烧蚀机制与玻璃或黄铜的常见机制不同。过滤材料上捕获的气溶胶显示出类似棉花的结构以及明确的球形颗粒，这与使用 NIST 玻璃气溶胶进行的观察相当。