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Purebase provides its blended supplementary cementitious material to UC Davis Pavement Research Center for concrete test track

by | Aug 29, 2024 | Press Release

Purebase provides its blended supplementary cementitious material to University of California Pavement Research Center for concrete test track

IONE, CA, AUGUST 29, 2024 (GLOBE NEWSWIRE) — Purebase Corporation (OTCQB: PUBC), a natural resource development company headquartered in Ione, California, is pleased to announce that the UC Davis Pavement Research Center (UCPRC) will be utilizing Purebase’s blended metakaolin supplementary cementitious material in its upcoming concrete pavement test track this summer or early fall 2024.

UCPRC launched the Sustainable Concrete Lab-to-Slab Initiative, focused on evaluating low-carbon cements and supplementary cementitious materials beyond the traditional coal fly ash and slag. This initiative is supported by organizations such as the ACI Foundation, the California Department of Transportation (Caltrans), and the Federal Highway Administration (FHWA)’s Sustainable Pavements Program Cooperative Center (SPPCC).

The Sustainable Concrete Lab-To-Slab Initiative aims to advance sustainable concrete technology by accelerating the implementation of more sustainable binders for structural, pavement, minor, and other concrete applications.

According to UCPRC website, the objective is to construct a series of three successive slabs, each utilizing a novel sustainable material for concrete, with a minimum requirement of approximately 2.5 cubic yards of concrete per test section. This initiative aims to generate invaluable insights at small-scale (no-traffic) test sections into the viability and efficacy of these materials for real-world applications in pilot projects and mainstream construction.

“Through prequalification testing, constructability assessment, QA/QC testing, mid-term monitoring, and environmental and cost life cycle assessment, we are dedicated to evaluating the performance of these materials and helping government and private project owners accelerate their implementation,” said the UCPRC.

“Although UC Davis has tested metrics of our SCM in the past in a lab setting, this is the next step in a project by the UCPRC where we can physically see the performance of the material in a real-life application. If testing of Purebase’s SCM is successful in the concrete pavement test slab, this will open the door for our SCM to be widely utilized and implemented in substantial construction projects across the state of California,” said Purebase CEO, Scott Dockter. “This would be a positive move for Purebase in our goal of decarbonizing California, and eventually, the nation.”

About Purebase Corporation

Purebase Corporation (OTCQB: PUBC) is a California-based company that is dedicated to developing natural resources for the purpose of providing solutions to future sustainability in big industries, specifically agriculture and construction/building materials. Our goal is to assist in global efforts of mitigating harmful carbon dioxide emissions by seeking out lower-carbon alternatives.

 

Safe Harbor
This press release contains statements, which may constitute “forward-looking statements”. Those statements include statements regarding the intent, belief, or current plans or expectations of Purebase Corporation and members of its management team, as well as the assumptions on which such statements are based. Such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and actual results may differ materially from those contemplated by such forward-looking statements. Risks and other important factors concerning Purebase’s business are described in the Company’s Annual Report on Form 10-K for the year ended November 30, 2023, and other periodic and current reports filed with the Securities and Exchange Commission. The Company is under no obligation to, and expressly disclaims any such obligation to update its forward-looking statements, whether as a result of new information, future events or otherwise.

 

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Amador County is considered the heart of the Motherlode in California because of its ever-so-rich gold mining history

Amador County is considered the heart of the Motherlode in California because of its ever-so-rich gold mining history

by | Aug 6, 2024 | Time Travel

– Time Travel Tuesday –

August 2024, From the Amador Ledger Archives

Go back in time with us as we dive into the Amador County newspaper archives from the late 1800’s and throughout the 1900’s and see what they were saying about the kaolin clay deposits here in the Ione area, and how they still relate to us and our operations today!

– The back story – 

Amador County is considered the heart of the Motherlode in California because of its ever-so-rich gold mining history where the precious commodity was discovered in abundance back in the gold rush era in the mid 1800’s. Hundreds of thousands of people flocked to this area in hopes of striking rich. What also was discovered, were other high-value minerals, especially in the city of Ione. You guessed it, kaolin clay was one of those.
Purebase thought it would be interesting to tie in our mineral history from hundreds of years ago and show our audience just how long these deposits have been utilized by locals and beyond for hundreds of years. Once a month, we will show you first-hand newspaper excerpts from the Amador Ledger newspaper that has been in existence since 1855 and is still fully functioning today, now called the Ledger Dispatch.
Take a look at this excerpt from the August 11, 1927 issue of the Amador Ledger. It highlights a “new clay industry” in Ione, and mentions that “this deposit is the only commercial deposit discovered in California.” Almost a hundred years later, it still is the only commercial kaolin deposit of its size discovered in California!

The excerpt goes on to describe that the “clay as found is mixed with sand and requires commercial processing before it is of commercial quality.” The same operations still stand today that the silica and heavy mineral sands are stripped from the clay using a density separator plant before the kaolin clay is sold into its specialty markets. It then says the plant has a capacity of five tons per day, a miniscule blip of what is produce today!

The front page of the August 11, 1927 issue of the Amador Ledger newspaper, where the above excerpt was clipped from.