Title:
Family of Thermal Nomograms for Mass Concrete
Author(s):
J. Brown, L. E. Al-Hasani, J. Park, K. E. Kurtis, R. Gentry, and Y. K. Cho
Publication:
Materials Journal
Volume:
120
Issue:
6
Appears on pages(s):
81-94
Keywords:
mass concrete; nomograms; thermal management
DOI:
10.14359/51739148
Date:
12/1/2023
Abstract:
Thermal management of mass concrete can adversely impact a
project’s cost and schedule, both during planning and in execution.
Nomograms are presented as aids to quickly identifying and
making tradeoffs among promising thermal management options.
First, the temperature of fresh concrete and a worst-case adiabatic
temperature estimate is provided by a nomogram based on
simple physical models. A subsequent nomogram accounts for the
impact of size, shape, and environment and is based on a surrogate
model generated from many three-dimensional (3-D) finite
element simulations without postcooling. Finally, nomograms for
postcooling are given, similarly founded on finite element-derived
surrogate models, for two classes of cooling pipe layouts. The use
of these nomograms, with an awareness of their estimated error,
is discussed for the initial development of mass concrete thermal
management plans.