Title:
Relation Between Hydration of Slag Sand and Mechanical Properties of Concrete
Author(s):
Shigeyoshi Nagataki, Makoto Takada,
and Etsuro Sakai
Publication:
Symposium Paper
Volume:
79
Issue:
Appears on pages(s):
1075-1090
Keywords:
blast furnace slag; curing; fine aggregates; hydration;
microcracking;pozzolans; tensile strength.
DOI:
10.14359/6740
Date:
5/1/1983
Abstract:
The potential hydraulicity of granulated blast-furnace slag sand in concrete governs the characteristics of concrete. Physical properties of concrete, and particularly, the structure of the hydrated layer formed at the surface of the granulated blast-furnace slag sand, the hydration activity of the granulated blast-furnace slag sand and the decline in the mechanical properties after drying of concrete were followed. The physical properties of concrete are influenced by the hydration reaction layers formed around granulated blast-furnace slag sand particles. The strength reduction due to drying may be due to the embrittlement of the hydration reaction layers or the formation of microcracks.