- Author
-
Henkensiefken, R.
|
Castro, J.
|
Kim, H.
|
Bentz, D. P.
|
Weiss, J.
- Title
- J., Internal Curing Improves Concrete Performance Throughout Its Life.
- Coporate
- US Concrete, San Jose, CA
National Ready Mixed Concrete Association, College Park, MD
National Institute of Standards and Technology, Gaithersburg, MD
Purdue Univ., West Lafayette, IN
- Journal
-
Concrete in FOCUS,
Vol. 8,
No. 5,
22-30,
September/October 2009
- Keywords
-
concretes
|
curing
|
mortar
|
particle size
|
size distribution
|
aggregates
|
compressive strength
|
shrinkage
|
drying
|
plastics
|
water
|
ASTM C 1585
|
durability
|
life (durability)
- Identifiers
- mortar mixture proportions for NIST/NRMCA study; measured particle size distributions; fine aggregate properties; autogenous deformation results for mortar mixtures; compressive strength results for mortar cubes cured under sealed conditions; mixture proportions for mortars with various levels of LWA replacement; sealed (autogeneous) shrinkage; unsealed (drying and autogenous) shrinkage
- Abstract
- In recent years, the technology of internal curing has been steadily progressing from laboratory studies to field application. Prominent examples of field applications include a railway transit yard in Texas, Texas state highway 121 and bridge decks in Ohio and New York. A winter 2006 Concrete InFocus article focused on enhancing high performance concrete through internal curing. More recent studies at Purdue University and the National Institute of Standards and Technology (NIST) have indicated that internal curing with pre-wetted fine lightweight aggregates positively impacts a variety of aspects of concrete performance from its fresh state throughout its life cycle, from cradle to grave. Results from these studies are summarized in this paper.