Concrete Logic

In this episode of the Concrete Logic Podcast, Seth and Joe Shetterley discuss the innovative technology of liquid fly ash (LFA) and its implications for the concrete industry. Joe explains the differences between traditional fly ash and LFA, highlighting the challenges faced with conventional supplementary cementitious materials (SCMs) and the importance of water management in concrete mixes. The conversation delves into the testing and implementation of LFA, its benefits in stabilizing concrete properties, and the future of concrete materials, emphasizing the role of nanoparticles in enhancing performance.

Takeaways
• Liquid fly ash is a new technology aimed at improving concrete performance.
• Traditional fly ash has quality issues that LFA seeks to address.
• Water management is crucial for the success of concrete mixes.
• Testing is essential to determine the right mix of LFA and traditional SCMs.
• The concrete industry needs to adapt to new materials and methods.
• Nanoparticles are becoming increasingly important in concrete technology.
• Chemicals in concrete mixes can lead to more problems than solutions.
• The future of concrete may rely on innovative materials like LFA and nanoparticles.

Chapters
00:00 Introduction to Liquid Fly Ash Technology
02:56 Understanding Liquid Fly Ash vs Traditional Fly Ash
05:01 Addressing Problems in Concrete Mixing
08:25 The Role of Liquid Fly Ash in Concrete
11:06 Testing and Protocols for Effective Use
12:28 Finishing Challenges in Concrete
15:05 The Impact of Water Management
18:44 Internal vs External Concrete Issues
22:33 Balancing Water in Concrete Mixes
25:32 The Future of Concrete Materials

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Episode References
Guest: Joe Shetterley | E5 | https://www.e5nanosilica.com/contact
Guest Website:⁠ https://www.e5nanosilica.com/

Producers: Jodi Tandett
Donate & Become a Producer: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.concretelogicpodcast.com/support/⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠

Music: Mike Dunton | ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.mikeduntonmusic.com⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ | ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠[email protected]⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ | Instagram ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠@Mike_Dunton⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠

Host: Seth Tandett, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠[email protected]⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
Host LinkedIn: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.linkedin.com/in/seth-tandett/⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
Website: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.concretelogicpodcast.com/⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠
LinkedIn: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.linkedin.com/company/concrete-logic-podcast

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• Type 1L cement is a significant development in the concrete industry. 
• Blended cements are becoming more common and offer various benefits.
• Curing practices greatly influence the performance of concrete. 
• Not all cements perform the same; variability exists between suppliers. 
• The float test is a practical tool for evaluating concrete workability. 
• Future concrete production will require more precise measurements. 
• Industry professionals need to establish clear performance standards.
• Understanding the properties of materials is crucial for quality control. 
• The use of admixtures and SCMs will increase in concrete mixes. 
• Continuous learning and adaptation are essential for success in concrete technology.

• Quality management systems are essential for concrete producers. 
• Type 1L cement is often misunderstood in the industry. 
• Blended cements can lead to unexpected challenges. 
• Proactive testing can prevent costly mistakes. 
• Understanding ASTM standards is crucial for compliance. 
• Quality control can significantly reduce legal liabilities. 
• Investing in quality management can save money in the long run. 
• Communication between teams is vital for quality assurance. 
• Testing frequency should increase with new cement deliveries. 
• The concrete industry must adapt to changing materials and standards. 

• Abigail always wanted to be a driver since high school. 
• The federal age restriction for driving commercial vehicles is a barrier for young drivers. 
• Abigail wrote an op-ed advocating for changes to age restrictions in driving jobs. 
• Her job allows her to enjoy the outdoors and see sunrises. • The unpredictability of work hours is a unique aspect of her job. 
• Abigail enjoys the active nature of her work, which keeps her moving. 
• She listens to audiobooks and music while driving, making the time enjoyable. 
• Training for her CDL involved extensive practical and theoretical learning. 
• The job requires teamwork and communication on job sites. 
• Abigail's memoir, 'The Hay Wagon,' explores her personal experiences and challenges. 

• Hands-on experience is crucial for success in concrete careers. 
• Internships provide valuable insights into career preferences. 
• The demand for concrete professionals is significantly increasing. 
• Technological advancements are enhancing productivity in construction. 
• Field experience fosters respect and strong relationships in the industry.
• Certifications are beneficial, but practical experience is essential. 
• Career paths in concrete construction are diverse and flexible. 
• The construction industry is dynamic, with daily challenges and innovations. 
• Networking through local chapters and competitions can enhance career prospects. 
• Field experience contributes to effective leadership and team development.

• Different 3D printing technologies and materials types should be differentiated and not grouped.
• 3D printing has the potential to revolutionize construction, but challenges such as high material costs and integration of various construction processes need to be addressed. 
• Data collection and analysis are crucial for improving automation and construction practices. 
• The United States, China, and Europe are leading the way in construction automation and 3D printing. 

• The use of new cement and fly ash materials can introduce variability in water-to-cement ratios in concrete production. 
• Managing risk and accurately calculating water-to-cement ratios is crucial for achieving desired concrete properties. 
• Moisture probes and variations in water content and cement quantities can further complicate the calculation of water-to-cement ratios. 
• Concrete production involves a balance between book Crete (lab calculations), lab Crete (batch plant production), real Crete (on-site delivery), and street Crete (field adjustments). 
• The construction industry needs to re-educate designers and engineers about changing definitions and standards in concrete production. 
• Practical problem-solving and risk management are essential in the field.

• Maintaining existing infrastructure is crucial to extend the life of aging concrete structures.
• Nanosilica is a solution for healing and strengthening aging concrete by purging harmful chemicals and promoting the growth of calcium silicate hydroxide.
• Using nano-silica in structural patching can improve the bond strength and longevity of the repaired concrete. 
• Hydrogels offer a promising solution for repairing cracks in concrete and promoting self-healing properties.
• Nanotechnology has the potential to revolutionize the construction industry by improving the durability and longevity of concrete.
• Sustainable and long-lasting infrastructure solutions are crucial for reducing future maintenance costs and environmental impact.
  
  

• The maturity method is an estimation method for concrete strength and requires proper preparation and planning. 
• The ASTM C1074 standard provides guidelines for estimating concrete strength using the maturity method. 
• Misuse of the maturity method can lead to discrepancies between predicted and actual strengths. 
• The maturity method involves determining the datum temperature and activation energy, developing maturity curves in the laboratory, and placing maturity meters in concrete elements in the field. 
• The method is not a replacement for other testing methods and should be used in conjunction with other validation methods. 
• The maturity method can be used to optimize construction schedules and ensure the strength of concrete before form removal or structural work.

• Graphene is a carbon nanomaterial that has the potential to significantly improve the performance of concrete. 
• A small amount of graphene in concrete can lead to significant performance improvements, such as increased adhesion and reduced pumping pressure. • Graphene is manufactured through processes like chemical vapor deposition and pyrolysis, and it can be produced from waste materials. 
• Graphene is a versatile material that has applications beyond concrete, including paints, polymers, coatings, batteries, and superconductors. 
• There are misconceptions and conspiracies surrounding graphene, but it is important to understand that it is simply carbon atoms linked together atomically.