Open AccessDiscussion: The alkali2–silica reaction2—a model for predicting expansion m mortar
Author(s) -
D. W. Hobbs
Publication year - 1981
Publication title -
magazine of concrete research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.901
H-Index - 57
eISSN - 1751-763X
pISSN - 0024-9831
DOI - 10.1680/macr.1981.33.117.208
Subject(s) - mortar , aggregate (composite) , cracking , alkali–aggregate reaction , alkali–silica reaction , expansion ratio , materials science , alkali metal , mineralogy , composite material , geology , chemistry , organic chemistry
Synopsis Data are presented which illustrate the influence that reactive aggregate content, mix proportions and cement alkali content have upon the time to cracking and upon the subsequent expansion of mortar specimens stored in water at 20° C. It is shown that an assumption that the alkali-silica reaction is a two-stage process leads to predictions which are in general agreement with the observed expansion behaviour of mortars.