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By Seth Tandett
4.6
1111 ratings
The podcast currently has 101 episodes available.
In this episode, Dr. Jon Belkowitz and Seth discuss colloidal silica and its various applications in the concrete industry. Dr. Jon highlights the differences between colloidal silica and silicates, emphasizing the benefits of using colloidal silica as a densifier and for surface treatments. He also mentions the ongoing efforts to create an ASTM standard for colloidal silica.
The conversation touches on the importance of performance testing and the potential long-term impact of using colloidal silica in concrete.
Takeaways
• Colloidal silica is a controlled suspension of nano-sized particles of silica, typically between 1 and 100 nanometers in diameter.
• Colloidal silica is used as a densifier and for surface treatments in the concrete industry.
• Silicates, on the other hand, react quickly and create a gel-like surface, which can limit penetration into the concrete.
• Using colloidal silica instead of silicates can provide longer-term benefits and reduce the risk of issues like hydrolysis in flooring systems.
• The ASTM is working on creating a standard specification for colloidal silica use in concrete, including performance testing.
• Colloidal silica offers ease of finishing and can help prevent issues like pinholes in the concrete surface.
Chapters
00:00 Introduction and Overview
03:06 Definition and History of Colloidal Silica
07:16 Differences Between Colloidal Silica and Silicates
13:15 The Importance of Using the Right Materials in Concrete
26:07 Progress Update on ASTM Standard for Colloidal Silica
***
Did you learn something from this episode? If so, please consider donating to the show to help us continue to provide high-quality content for the concrete industry.
Donate here: https://www.concretelogicpodcast.com/support/
***
Episode References
Guest: Dr. Jon Belkowitz | Intelligent Concrete | [email protected]
Guest Website: https://www.intelligent-concrete.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
In this episode, Seth interviews Rich Szecsy, an executive
Rich explains the history behind the 90-minute time limit and the lack of scientific justification for it. He emphasizes the importance of considering the practicality and
Takeaways
Chapters
00:00 Introduction and Background
05:34 The Change from 90 Minutes to 120 Minutes
11:05 The History and Justification of the 90-Minute Time Limit
27:48 Rethinking Temperature Specifications
38:04 Prioritizing Practicality and Sustainability
38:54 The Responsibility of Concrete Producers
***
Did you learn something from this episode? If so, please
Donate here: https://www.concretelogicpodcast.com/support/
***
Episode References
Guest: Rich Szecsy | [email protected]
Guest Website: https://www.linkedin.com/in/rich-s-szecsy-phd-pe-faci-8724992/
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
In this episode of the Concrete Logic Podcast Seth welcomes back to the show Bill Kulish with Steelike, Inc. Bill explains the unique properties of UHPC, its durability, and its resistance to temperature variations. The conversation also covers the cost and quality control of UHPC compared to traditional concrete.
The conversation delves into the differences between traditional concrete and ultra-high-performance concrete (UHPC), highlighting the ingredients, handling, and performance of each. It also explores the applications and benefits of UHPC in repairs and infrastructure projects, as well as the challenges and considerations of using UHPC. The discussion concludes with a focus on the environmental and long-term performance implications of UHPC and traditional concrete.
Takeaways
Chapters
*** Did you learn something from this episode? If so, please consider donating to the show to help us continue to provide high-quality content for the concrete industry.
Episode References
Guest: Bill Kulish | Steelike, Inc. | [email protected]
Guest Website: https://steelike.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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