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Because of the financial development in Taiwan recently, and the rapid growth
of relative building business, so building materials are decreasing gradually.
Surrounded by sea, it*s a trend to use the building materials with chloride i
on in the future. But chloride ion has quite degree of harms to the structures
. Therefore, the emphasis of the research is to explore the relation between t
he cement component and chloride ion.By changing the proportion of every cemen
t mineral component, putting in different curing environment, we understand th
e bounding degree of the main element minerals in cement to chloride ion in di
fferent environment. Furthermore, by the experiment of pure minerals in chlori
de ion solution bounding to chloride ion, we get the bounding ability of every
element mineral to chloride ion. So we can make more effective controls when
chloride ion building materials are in use.The result of the study pointed out
that the main bounding mineral to chloride ion in cement is C3A, yet C4AF has
a smaller effect. C2S and C3S have almost no reaction to the chloride ion. Un
der high percentage of C3A and in the curing environment of saturated lime sol
ution, we can effectively reduce the total chloride ion amount and free chlori
de ion amount in cement.
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