Application Of The Cement Hydration Equation
In Self-compacting Concrete’s
Compressive Strength
Author(s)
N. Anagnostopoulos, A. Gergiadis & K. K. Sideris
Abstract
The development of the compressive strength of different self-compacting
concretes is experimentally investigated in this research. The self compacting
concretes belonged to different strength classes C20/25, C25/30, C30/37 and
C35/45. A total of eight mixtures with different cements and different types of
aggregates were produced. For comparison reasons additional conventionally
vibrated concretes (NCC) of the same strength classes were also produced with
the same cements and aggregates. The compressive strength of all mixtures was
studied with the help of the cement hydration equation. The hydration number p
was determined using the hydration criterion of mortar’s compressive strength.
The compressive strength equations were therefore set up for all SCC and NCC
produced and their compressive strength values at different hydration ages up to
15 years were calculated. The results indicate that in the case of SCC of all tested
classes their compressive strength was significantly increased after the age of
7 days. This increase was much higher than the one measured on conventional
concretes of the same strength class. It seems therefore that self compacting
concretes produced with limestone filler have a significantly high safety
coefficient, regarding the increase of their compressive strength at the late
hydration ages.
Keywords: self compacting concrete, cement hydration equation, compressive
strength, limestone filler, aggregates.
Keywords
self compacting concrete, cement hydration equation, compressive
strength, limestone filler, aggregates.
Related Book
Other papers in this volume
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