Title:
Concrete Hydration and Mechanical Properties under Nonisothermal Conditions
Author(s):
Ivindra Pane and Will Hansen
Publication:
Materials Journal
Volume:
99
Issue:
6
Appears on pages(s):
534-542
Keywords:
concrete; hydration; strength
DOI:
10.14359/12362
Date:
11/1/2002
Abstract:
An analytical procedure for determining the heat of hydration and degree of hydration due to nonisothermal temperature history is developed by utilizing a three-parameter model. The procedure can also be applied to concrete mechanical properties if they are strongly related to the degree of hydration. To prove this, experiments were conducted to obtain the heat of hydration, chemically bound water, compressive strength, split tensile strength, and Young’s modulus of concrete. In addition, experimental results in the literature were also used. It was found that the measured degree of hydration relates uniquely to measured concrete properties. The analytical procedure was then extended to determining a generalized hydration or aging time. Results available in the literature were used to confirm the predictive capability of the proposed aging relation. The proposed maturity relation was also found to relate uniquely to mechanical properties such as compressive strength and fracture energy.