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Advanced Nuclear Material Research Center

Apr 8, 2025
1 min read

Location: Chalk River, Ontario, Canada

Award: Innovative Applications


Project Team

Owner: Canadian Nuclear Laboratories

Contractor: Bird Construction

Engineer: Atkins Réalis

Concrete and Slag Cement: Heidelberg Materials



The Advanced Nuclear Material Research Center (ANMRC) project is a first of its kind Nuclear Laboratory in Canada. The project is being built in accordance with CSA N299 and N287.5 standards. Slag cement was used in controlled low strength material (CLSM) backfill placed between bedrock and raft slab foundations (approximately 10 m [33 ft] deep). The engineering team required that the CLSM strength was between 2 to 5 MPa (435 to 725 psi) at 28 days; an exceptionally narrow strength requirement.


Application Type

Application Type


% Slag Cement Replacement

50%

% Portland Cement


% Portland Limestone Cement

50%

% Other SCM (if applicable)


Aggregate

1550

Water/cement ratio


7-day strengths


28-day strengths

2-5 Mpa


13 Comments


Infosaray
Sep 20

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I was just curious about the research being done on advanced nuclear materials and ended up browsing this site briefly. Overall, the layout seemed straightforward, and I noticed the menu was organized in a way that made it pretty easy to navigate between sections. What I liked was that the text blocks are spaced out reasonably, so it didn’t feel cluttered, even though I only looked around for a bit. The homepage gave a clean first impression, but at least from a quick look, some of the detailed pages seemed a little dense to get through without more visuals or clearer headings. It felt like a site meant for people already familiar with the topic, but the structure is logical…

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The ANMRC project’s tight 2-5 MPa strength window for the CLSM backfill is a great example of precise mix design with 50% slag cement replacement. When I need to share project documents or technical reports quickly, a pdf to link service makes it easy to turn files into shareable URLs without bulky attachments.

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La información del artículo resulta bastante útil y está presentada de una manera sencilla de comprender. También es importante contar con recursos accesibles cuando queremos consultar resultados recientes. Para las personas interesadas en los numero de hoy, disponer de información organizada puede ahorrar tiempo y facilitar mucho la consulta.

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hx Steven
Aug 21

That 2-5 MPa strength window for the CLSM backfill is no joke—getting slag cement to behave that predictably at 50% replacement takes some serious mix design discipline. It's cool to see Canadian Nuclear Laboratories pushing standards like CSA N299 on a first-of-its-kind facility; that kind of precision is rare in construction. Speaking of precision engineering, it reminds me of the careful level design in monumentvalley 3, where every optical illusion has to line up just right for the puzzles to work. Makes you appreciate how much thought goes into both building physics and virtual worlds.

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