email: tfl3543@blackfoot.net

BEAR RIVER ZEOLITE CO., INC.
4005 East Glendale Road
Preston, ID 83263

tel: 406-827-3523
fax: 406-827-3543

Printer Friendly

 

BRZ AS A POZZOLAN

POZZOLAN

A pozzolan is a “siliceous or siliceous and aluminous material, which in itself possesses little or no cementitious valve but will, in finely divided form and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperatures to form compounds possessing cementitious properties” (ASTM)

Cement consists of three types of materials; (1) limestone (CaCO3), (2) aluminum silicate (clay or shale), and (3) inert materials such as sand and gravel. The limestone and clay are fired together in a rotary kiln. The limestone decomposes to lime (CaO) which reacts with the clay or shale to form “clinker”. Clinker consists of tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetra calcium aluminate ferrite. The clinker is finely ground generally in a ball mill to make “cement”.

In “Portland-pozzolan” cement 10 to 25% of the cement can be replaced by zeolite which is a natural pozzolan.

 

 

Please read: "A NEW LOOK TO AN OLD POZZOLAN: CLINOPTILOLITE – A PROMISING POZZOLAN IN CONCRETE" by Dipayan Jana, Construction Materials Consultants, Inc. and Applied Petrographic Services, Inc., Greensburg, PA 15601 USA, from PROCEEDINGS OF THE TWENTY-NINTH CONFERENCE ON CEMENT MICROSCOPY QUEBEC CITY, PQ, CANADA MAY 20 -24, 2007

 

PRODUCT DESCRIPTION

  • Size: BRZ™ ground to 20-25 microns 
     

  • Weight: Bulk density, 55 pounds per cubic
     

BENEFITS OF USING BRZ™ AS A POZZOLAN

  • INCREASED COMPRESSIVE STRENGTH due to the porous crystalline structure and high surface area of the zeolite, the hydrated phases of lime pozzolan are enhanced and this increases the compressive strength. The Company has run numerous tests that are available.
     

  • DECREASES ALKALI-SILICA EXPANSION. BRZ™ allows the use of clinkers with more than 0.60% Na2O. (Limit of ASTM description). The zeolite isolates the excess sodium in its crystal lattice.
     

  • HELPS RESIST UNDERWATER CORROSION
     

  • POWER SAVINGS: The production of 1 kg of clinker requires 900 Kcal of energy. Ten tons of BRZ™ used as a natural pozzolan to replace Portland cement saves about 1 ton of fuel.
     

  •  IMPROVED CHEMICAL RESISTANCE especially in salt water applications.
     

  • DECREASE INSTABILITY CAUSED BY EXCESS LIME IN THE SET CEMENT

     

RESEARCH

LIGHTWEIGHT CEMENT
BRZ™ can be heat treated to form lightweight cement. When heated it loses water. When mixed into a cement mixture it rehydrates and releases air. The “foam” or “air entrainment” increases strength and decreases weight. BRZ™ can be used to replace fumed silica in light weight cement.

LIGHTWEIGHT AGGREGATE
BRZ™ expands into a lightweight aggregate at temperatures between 1200o and 1400o C. Its density is about 0.8 g/cc, and it has a porosity of up to 65%. Light-weight aggregate is commonly used in Japan.

 click here for a full sized image

Printer Friendly

 

click here for a full sized image

Printer Friendly

----- Original Message -----
From: "Werner, Orville" <Owerner@CTLThompson.com>
To: "Mike Floersch (E-mail)" <mikef@blackfoot.net>
Sent: Tuesday, January 20, 2004 10:45 AM
Subject: 28-day resultsimages_new\email1-850.jpg

> Mike,
>
> This material achieved an incredible amount of strength from 7 days to 28
days. Combined with a high-range water reducer, it may compete favorably
with silica fume and super-fimages_new\email1-850.jpgine fly ash.
>images_new\email1-850.jpg
> Orville R. Werner II, P. E.
> Principal
> Commercial Testing Laboratories Inc.
> A Division of
> CTL | THOMPSON, INC.
> 1971 W. 12th Ave.
> Denver, CO. 80204
> 303-825-0777
> fax: 303-825-4252
> www.ctlt.com
>
> Information contained herein is neither necessarily complete nor accurate.
Final stamped and signed documents govern. Use of these data is solely at
the user's risk. By accessing the data contained in these files the user
agrees to indemnify, hold harmless and defend CTL | Thompson, Inc.,
CTL*Thompson Texas, LLC and Commercial Testing Laboratories Inc., their
employees, officers and agents from any and all claims arising from the use
of the data.