ASSESSMENT METHOD OF HYDRATION DEGREE OF CEMENT IN COMPLEX BINDER BASED ON THE CALCIUM HYDROXIDE CONTENT
ASSESSMENT METHOD OF HYDRATION DEGREE OF CEMENT IN COMPLEX BINDER BASED ON THE CALCIUM HYDROXIDE CONTENT
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发表时间：
2009
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通讯作者：
Y. Peiyu
中科院分区：
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作者：
Y. Peiyu
测定了粉煤灰的水化程度和Ca（OH）2含量，结合水泥水化平衡计算，提出了基于Ca（OH）2含量的复合胶凝材料水泥水化程度评价方法，结果表明：随着粉煤灰掺量的增加，粉煤灰的水化程度和Ca（OH）2含量逐渐降低，同时，水泥的水化程度增加，高掺量粉煤灰复合胶凝材料中水泥的水化程度90 d时的转化率高达80%，其中一些甚至几乎完全水合。水的作用-水泥比对复合胶凝材料中水泥水化程度的影响远不如粉煤灰掺量对复合胶凝材料中水泥水化程度的影响显著基于Ca（OH）2含量的方法可以更准确、直观地表征复合胶凝材料中水泥的水化程度。
The hydration degree of fly ash and the content of Ca(OH)2 were measured.Combined with the equilibrium calculation of cement hydration,a method of assessing the hydration degree of cement in complex binders based on the content of Ca(OH)2 was developed.The results show that as the content of fly ash increases,the hydration degree of fly ash and the content of Ca(OH)2 decrease gradually,at the same time,the hydration degree of cement increases.The hydration degree of cement in complex binders containing a high content of fly ash(more than 35%) at 90 d is as high as 80%,some of which is even nearly completely hydrated.The effect of water-cement ratio to the hydration degree of cement in complex binders is far less distinct than that of the content of fly ash.Compared with the method based on the equivalent content of non-evaporable water,the method based on the content of Ca(OH)2 can be used to characterize the hydration degree of cement in complex binders more accurately and intuitively.