Title of article :
The calcium silicate hydrates
Author/Authors :
I.G. Richardson ، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
This article is concerned with the calcium silicate hydrates, including crystalline minerals and the extremely variable and poorly ordered phase (C-S-H) that is the main binding phase in most concrete. Up-to-date composition and crystal-structure information is tabulated for the most important crystalline calcium (alumino) silicate hydrates and related phases. A number of models for the nanostructure of C-S-H are summarized and compared and it is shown that there is much more of a consensus than might seem apparent at first sight. The value of the recently solved structures of 1.4 nm tobermorite and jennite, together with those of jaffeite and metajennite, for visualizing the nanostructural elements present in the models is demonstrated. The importance of Hal Taylorʹs contribution to the solution of the structure of jennite is highlighted. The applicability of Richardson and Grovesʹ model is demonstrated using experimental composition-structure observations on the nature of C-S-H in a Portland cement-fly ash blend.
Keywords :
TEM , crystal structure , Calcium silicate hydrate (C-S-H) , Cement
Journal title :
CEMENT AND CONCRETE RESEARCH
Journal title :
CEMENT AND CONCRETE RESEARCH