- FDOT Flexural Testing
- FDOT Flexural Testing (Aerial)
- Piling During Testing
- Fail Pattern
- Construction Yard
- Installation Testing 1
- Installation Testing 2
- Installation Conclusion
- FDOT & UF Testing
- Pouring Pre-Tensioned Piling
- Delivery in Action
- Batch Plant
- Lab Testing
- Drop Test 1
- Drop Test 2
- Bridge Connection
- Bridge Connection Aerial
- Bridge Connection Mixing
- Mobile Mixing
Florida Department of Transportation (FDOT) Flexural Testing Press
This test represents the horizontal portion of our piling testing. In the press in one 18″x18″x30′ Cor-Tuf® UHPC pilings equipped with a full suite of embedded sensors prior to the start of testing.
Florida Department of Transportation (FDOT) Flexural Testing Press (aerial View)
Aerial view of the horizontal portion of our piling testing. Below, you can see a wider view of one of our 18″x18″x30′ Cor-Tuf® UHPC pilings equipped with a full suite of embedded sensors prior to the start of testing.
Cor-Tuf® UHPC Piling During Testing
Image above depicts the Cor-Tuf® UHPC piling during testing. The center of the piling was deflected 4.5″ from level center as can be seen here.
Failure Pattern of the Cor-Tuf® UHPC Piling After Testing
When the piling failed, it failed in one location with no extreme radiating cracking from the center. This was the only failure point on the piling.
On Site at the Leware Construction Yard in Leesburg, Florida
In this test, we are installing our 18″x18″x100′ piling into the ground with the first of two hammers we used for the test, the D36. During our testing, we monitored the vertical stresses delivered to the piling during installation with a similar suite of monitoring sensors as we did in the flexural testing.
Phase One of Cor-Tuf® UHPC Installation Testing
In this photo, we have just concluded the first phase of installation testing and are getting ready to switch to the larger D62 hammer. This hammer was used throughout phase two of our testing.
Phase Two of Cor-Tuf® UHPC Installation Testing
Here we have switched hammers to the larger D62 hammer for phase two of our installation testing. In phase two, we were attempting to break the piling by applying as much vertical force as possible to the top of the pile.
Conclusion of Cor-Tuf® UHPC Installation Testing
This is the top of the pile after all testing concluded. Aside from some discoloration caused by the hammer pad, the piling is otherwise in ideal condition. Regardless of which hammer was used of force exerted, the structural integrity of the piling never dipped below 100 percent.
Florida DOT/ Tallahassee, Tests Cor-Tuf® UHPC Pilings in Cooperation with the University of Florida
Pictured above is the first of two pre-tensioned pilings filled with Cor-Tuf® UHPC for testing by the Florida Department of Transportation and the University of Florida. Each piling measures 18″x18″x30′.
Pouring Cor-Tuf® UHPC into Pre-Tensioned Piling Form
Another angle of Cor-Tuf® UHPC as viewed from the Tuckerbilt truck into the piling forms.
Cor-Tuf® UHPC Transportation and Delivery in Action
Pictured above is a specialized Tuckerbilt concrete delivery truck being utilized to transport and pour Cor-Tuf® UHPC in large, pre-tensioned piling forms. In attendance are representatives from the Federal Highway Association, the Florida DOT, Chryso Chemical Group, Dura-Stress, Inc. and the Precast Concrete Institute.
Cor-Tuf® Designated Batch Plant at Dura-Stress Inc. - Leesburg, FL
Unlike other UHPC products, Cor-Tuf® UHPC can be mass-produced using our fully automated, double-shaft mixing facility. This twin-shaft setup allows for high stirring efficiency, increased consistency, and better mixing performance overall.
Getting the Mixer Set for Testing at CTL Labs
The Cor-Tuf® UHPC team prepares to mix a batch of UHPC, originally developed by the US Army Corps of Engineers. Testing shows that UHPC has ten times the compression strength of traditional concrete and a longevity of more than 75 years. Our team of experts is available to assist with any questions on the Cor-Tuf® UHPC product.
Drop Test 1
Drop tests are used to demonstrate the durability of UHPC concrete. In our first drop test, a 16-pound bowling ball was dropped from 22.5 feet directly onto Cor-Tuf® UHPC, cracking the bowling ball wide open. Cor-Tuf® UHPC came out unscathed.
Drop Test 1
In our second drop test, a 67.5 pound cement block was dropped 22.5 feet onto Cor-Tuf® UHPC. The cement block shattered on impact, while the Cor-Tuf® UHPC slab remained intact.
Virginia DOT Crew Pouring Cor-Tuf® UHPC into a Precast Bridge Connection
As DOTs across the country implement accelerated bridge construction, precast bridge panels are becoming the norm. Filling panels with Cor-Tuf® UHPC ensures that connections are stronger and more durable. This added strength reduces future maintenance needs, increases longevity, and amplifies cost savings by decreasing the amount of downtime for bridges that are out of commission.
Aerial View of the Virginia DOT Crew Pouring Bridge Panel Connections
Implementing Cor-Tuf® UHPC in bridge installation projects is a landmark commitment from the Virginia DOT, ensuring that bridges retain their high compression strength and impact resistance for more than 75 years.
Mixing Cor-Tuf® UHPC for Placement by Virginia DOT in a New Bridge Installation
Many U.S. state governments strongly recommend that UHPC be used in all future bridge construction and repair projects. As a material provider, our service package revolves around mixing, delivering, and providing quality control for the on-site installation crew. Here, the team mixes Cor-Tuf® UHPC in preparation for extremely durable field-cast connections for prefabricated bridge elements.
Pumping Cor-Tuf® UHPC with a Standard TK-50 Commercial Pump
Despite industry misconceptions, Cor-Tuf® UHPC can be pumped and poured just like conventional concrete – but with the added benefits of longer life, greater strength, and increased versatility. This makes it easy for any construction crew to use UHPC without bringing additional equipment onsite.
Mixer on its Way to the CTL Labs in Chicago
Ultra-High Performance Concrete is the ideal material to repair the more than 54,000 structurally deficient bridges in the U.S.. Our rigorous testing, in partnership with CTL labs, demonstrates that Cor-Tuf® UHPC is the best choice for rebuilding and reinforcing American Infrastructure.