van der Lugt G, Scholten L C
Sci Total Environ. 1985 Oct;45:143-50. doi: 10.1016/0048-9697(85)90214-1.
In the Netherlands both Portland cement and blast furnace cement (slags from blast furnaces with about 30% Portland cement) are used for concrete. Radon exhalation measurements were carried out on concrete blocks made with these two types of cement and blocks with 15, 25 and 35% of the cement substituted by three different types of flyash. The results show that substituting part of the cement by flyash has no drastic effect on the exhalation rate. For concrete with Portland cement the exhalation rate decreases using flyash with an average radium content. With blast furnace cement a slight increase may be expected. The exhalation of concrete is greater than the sum of the exhalation values of the constituting components. The water in the pores of the concrete plays an essential role in the emanation process.
在荷兰，波特兰水泥和高炉水泥（含约30%波特兰水泥的高炉矿渣）都用于混凝土。对用这两种水泥制成的混凝土块以及用三种不同类型粉煤灰分别替代15%、25%和35%水泥的混凝土块进行了氡析出测量。结果表明，用粉煤灰替代部分水泥对析出率没有显著影响。对于使用波特兰水泥的混凝土，使用平均镭含量的粉煤灰时析出率会降低。对于高炉水泥混凝土，可能会有轻微增加。混凝土的析出量大于其组成成分析出值之和。混凝土孔隙中的水在析出过程中起着至关重要的作用。
