Internal curing is a method of curing the concrete from the inside by “hiding” water in the lightweight aggregates. The benefits of internal curing include a well distributed network of water to cure as needed throughout the mixture. A long term benefit is the potential extension of the concrete’s service life. Mixture proportioning for concrete designed with internal curing is as simple as replacing a portion of the sand with prewetted, fine lightweight aggregate.
Part 1 includes presentations covering “Overview – Improving the Performance of Concrete with Internal Curing,” and “Concept, Proportioning, and Aggregate.”
Table of Contents
1. Understand difference between external and internal curing.
2. Understand which properties of concrete can be improved with internal curing.
3. Understand what is meant by the term internal curing.
4. Understand the principles that are used to proportion an internally cured concrete mixture:
1) chemical shrinkage volume
2) aggregate spacing
3) aggregate properties
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