This article was originally published in ACI's Concrete International, October 2013, Volume 35, No. 10 www.concreteinternational.com HELIX micro reinforcement is produced with a unique twisted profile that allows each piece to bond to the matrix over its full length. In addition, the reinforcement must untwist as it pulls out of the concrete. This makes this product significantly different than traditional steel fibers because pullout is governed by twisting resistance rather than friction. This article provides a description of the fracture mechanisms of micro-reinforced concrete composite, a novel method to measure performance characteristics of the composite, and a design methodology using the proactive and reactive reinforcement properties.
1 Oct, 2013
A “microscopic” composite can be created by combining concrete with HELIX™ twisted steel micro reinforcement (micro reinforcement). Because this type of reinforcement is distributed throughout the matrix and is continuously deformed like reinforcing bars, it carries load both before and after the concrete develops a macro crack. Thus, micro reinforcement is proactive reinforcement that also acts as reactive reinforcement at higher strain levels.
12 Apr, 2012
Luke Pinkerton, founder and CTO of Helix Steel, discusses existing design methods for concrete reinforcement and introduces a new physics based method. A full article to be published in the coming months.
1 Feb, 2011
Artículo publicado originalmente en México ACI febrero / marzo de 2011 Edition. Escrito por Lucas Pinkerton, una espiral de acero con Juan Aguilera y Aguilera, Damián de la Tecnología en Concreto Del Norte, SA de CV
1 Feb, 2011
Article originally published in ACI Mexico Feb/March 2011 Edition. Authored by Luke Pinkerton, Helix Steel with Juan Aguilera and Damian Aguilera of Tecnologia En Concreto Del Norte, S.A. de C.V.
1 Jul, 1998
The article is a summary of a new concrete reinforcing technology and the patent application for it. It’s a new fiber with a new shape. The new reinforcement improves the properties of concrete which is naturally brittle and weak. This new product later became Helix.
22 Apr, 2013
A short news article and video clip detailing the rebuilding of a medical practice in Joplin, MO that was destroyed by an EF5 tornado in May 2011. The new facility is a TF Systems, Helix reinforced ICF structure designed to withstand winds up to 200 mph and be energy efficient. View the video at http://fourstateshomepage.com/fulltext?nxd_id=389132
22 May, 2012
Helix is now being used in new ICF homes as Joplin residents rebuild after the deadly tornado of 2011. Helix reinforced concrete homes provide superior protection against tornados and other sever weather. A link to the video is provided at the end of the article.
8 May, 2012
Lesa Mitchell, Vice President of the Ewing Marion Kauffman Foundation wrote an article for Huffington Post detailing the story of two commercial technologies that began as academic research. You'll find Helix discussed in the second half of the article.
3 Oct, 2011
Writer Tara Muck shares the technical details behind the new Pensmore mansion. With the rumors settling, she goes in depth about the tecnologies and plans for the structure.
20 Jul, 2011
Forbes writer Morgan Brennan discusses the many mansions of the rich and famous and the newest mega mansion you've probably not heard of - Pensmore. The article discusses some of the rumors surrounding the new project. It also talks about the technologies - and their benefits - used to build the structure.
16 Jul, 2011
Writer A. G. Sulzberger discusses the speculation behind the new construction project and an explanation for its not so expected location. The article also touches on the technology involved and owner Steven Huff's intentions for the project.