This experimental study reports the weighted fraction of hydrated products of cement-based foam and examines their influence on pozzolans and thermal conductivity. These hydrated products were formed as the result of hydration in the cement-based foam mixtures prepared by substituting cement with fly ash, silica fume, and metakaolin, up to 20% by weight in the binder. To monitor the maturity of the hydration products, three different hydration periods, namely 60th, 120th, and 210th day, were selected. X-ray diffraction technique was used here for the identification of phase spectrums while the Rietveld quantitative X-ray diffraction method was employed for the quantification of the weighted fraction of hydrated products. The weighted fraction results showed that the consumption of portlandite (CH) increases with the inclusion of pozzolan and the higher substitution ratio further increases this consumption. In addition, the results reveal that the portlandite (CH) and calcium silicate hydrate (CSH) govern the thermal conductivity of cement-based foam mixture including those blended with pozzolan.

这项实验研究报告了水泥基泡沫的水合产物的重量分数，并检查了它们对火山灰和导热性的影响。这些水合产物是在水泥基泡沫混合物中水合的结果，该混合物通过用粉煤灰，硅粉和偏高岭土代替水泥而制得，水泥中的粉煤灰，硅粉和偏高岭土的含量最高为粘合剂的20％。为了监测水合产物的成熟度，选择了三个不同的水合时间，即第60、120和210天。这里使用X射线衍射技术来鉴定相光谱，而使用Rietveld定量X射线衍射方法来定量水合产物的重量分数。加权分数结果表明，随着火山灰的加入，波特兰石（CH）的消耗量增加，而较高的取代率则进一步增加了该消耗量。此外，结果表明，硅酸盐（CH）和水合硅酸钙（CSH）决定了水泥基泡沫混合物（包括与火山灰共混的泡沫）的热导率。