In the Fall of 2023, the Kansas Department of Transportation (KDOT) aimed to improve a 15-mile section of US Hwy 169 outside Thayer, KS. To ensure that the concrete overlay endured the barrage of concrete issues commonly associated with Kansas’s seasonal changes, KDOT specified the use of internal curing using prewetted lightweight aggregate. Clarkson Construction was the contractor chosen to deliver the project. This video highlights Clarkson’s experience with providing a more durable pavement.
This presentation was developed as part of a series for the Expanded Shale, Clay and Slate Institute by Dr. Jason Weiss, PhD of Oregon State University. The objectives include understanding the difference between external and internal curing, why the use of internal curing is needed today, understanding the science of internal curing, understanding which properties of concrete can be improved with internal curing and examining the recent steps the industry is taking to implement internal curing.
This presentation was developed as part of a series for the Expanded Shale, Clay and Slate Institute by Dr. Jason Weiss, PhD of Oregon State University. The objectives include understanding what is meant by the term internal curing and understanding the principles that are used to proportion internally cured mixtures.
This presentation given by Jeffrey Speck was developed as part of a series for the Expanded Shale, Clay and Slate Institute. The objectives include understanding the properties of lightweight aggregate.
This presentation was developed as part of a series for the Expanded Shale, Clay and Slate Institute by Dr. Jason Weiss, PhD of Oregon State University. The objectives include understanding mixture proportioning as related to internal curing.
This presentation was developed as part of a series for the Expanded Shale, Clay and Slate Institute by Dr. Jason Weiss, PhD of Oregon State University. The objectives include understanding shrinking and cracking as related to internal curing.
This presentation was developed as part of a series for the Expanded Shale, Clay and Slate Institute by Dr. Jason Weiss, PhD of Oregon State University. The objectives include understanding mechanical and transport properties as related to internal curing.
This presentation was developed as part of a series for the Expanded Shale, Clay and Slate Institute by Dr. Jason Weiss, PhD of Oregon State University. The objectives include understanding that sustainability is a concern for the concrete construction industry, discuss potential ways that internal curing can be used in sustainable design, understanding how service life can be improved by using internal curing and understanding how internal curing can be used to reduce cement/clinker.
Concrete Clips is a series of informational videos developed by FHWA. Internal curing is a method of water curing concrete. Unlike conventional curing that supplies water from the surface of concrete, internal curing provides the curing water from the porous aggregates that are mixed into the concrete mixture for the purposes of providing the cure water.
This video demonstrates ASTM C173, the Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method; it is commonly referred to as the Roll-a-Meter test. The Volumetric Air Test method covers the determination of the air content of freshly mixed concrete. It measures the air contained in the mortar fraction of the concrete; it is not affected by air that may be present inside the porous lightweight aggregate particles.
ESCSI, in conjunction with Trinity Lightweight, has released a new video detailing the use of internally cured concrete in a long-term water tank replacement project in Denver, Colorado. The public utility is in the midst of a 10-year $120-million dollar project to upgrade water storage facilities across the city. The video, featuring engineer Erik Holck, explains why internally cured concrete is the product of choice to build new massive multi-million gallon tanks used to store Denver’s treated water.
