DEAR ALL
HOW CAN WE ESTIMATE 1,3. 7 & 28 DAYS STRENGTH BY KNOWING THE OXIDE COMPOSITION OF CLINKER OR CEMENT ALONG WITH BLAINE.
IS THERE ANY FORMULA FOR THE SAME.
ALSO IS THERE ANY RELATIONSHIP BETWEEN THE STRENGTH DEVELOPMENT FOR 1,3,7 & 28 DAYS. I MEAN IS THERE ANY LOGICAL DIFFRENCE BETWEEN TWO CONSEQUTIVE STRENGTH VALUES?
PL. REPLY
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These may be helpful;-
https://engineering.purdue.edu/~concrete/students/Anand_Krishnan/Krishnan_Chapter-3.pdf
http://jcsp.org.pk/index.php/jcsp/article/viewFile/494/174
Regards,
Ted.
There is a simple formula for calculating the kinetics of hardening cement concretes
Rn=R28 * Ln(n)/ln(28)
where Rn - strength in n-days, R28 - strength in 28 days, n - days, 28 days
Example; in 7-days you has strength 23 MPa, in 28 days strength will be
R28=23 * Ln28/Ln7 =23* 3.33/1.94=39.4 MPa