Shebeshekong River Fish Habitat Restoration Using Dexpan

Shebeshekong River Fish Habitat Restoration Using Dexpan

FISH HABITAT RESTORATION WITH DEXPAN

PROJECT:  Rock excavation to improve fish access to historical spawning Habitat
MATERIAL:  Rock in a river bed

CHALLENGE
1.   Sensitive ecosystem
2.  Need to protect water quality and keep fish safe
3.  Work site is a river bed
4.  Heavy equipment too disruptive, risk of pollution
 

SOLUTION
1.  Dexpan non-explosive demolition grout
2.  Re-direct river flow to reduce water in work area
3.  Drill.  Mix.  Pour Dexpan.
4.  Extra precautionary measures included vacuuming dust during drilling, removing clumps of Dexpan as rock pried free and installation of a silt curtain at the bottom end of the channel.


*  Protect Plastic Sleeves were not used in this project.  The sleeves allow Dexpan to be used in underwater application, sensitive environments or when there is extensive ground water.  Contact us for details. 

 

Dexpan Downloads

Dexpan Downloads

We have updated & improved a number of Dexpan resources.  Click the button below to download a PDF of the most up-to-date document.

Dexpan in Action  -  Concrete Curtain Wall

Dexpan in Action - Concrete Curtain Wall

Dexpan was employed to speed the removal of a heavily reinforced curtain wall that was very difficult and slow to break using traditional equipment.  .

Avoid Dexpan Knock-Offs

Avoid Dexpan Knock-Offs

In the case of expansive grout for the non-explosive breaking of concrete, rock and boulders, some importers source knock-off product from factories in China chasing a quick profit believing they can provide a similar product at a lower price.

Dexpan Cold Weather Rock & Boulder Breaking

Dexpan Cold Weather Rock & Boulder Breaking

Especially in remote locations, resourcefulness and "out of the box" thinking is sometimes required to get the job done in these challenging conditions. 

Here are a sampling of ideas we have received from the field.

Buy Dexpan in Kawartha Lakes

Buy Dexpan in Kawartha Lakes

Are you in Kawartha Lake country in Ontario?   Have property with rock or boulders that needs to go?  J. Austin and Sons is your local Dexpan retailer.

What can cause expansive demolition grouts to blowout?

What can cause expansive demolition grouts to blowout?

Expansive grout powders work by mixing with water to cause a chemical reaction that generates heat and expansion.   If the reaction goes too quickly the temperature can be above the boiling point of water before all the water has chemically combined with the powder. This can result in a steam driven explosion which blows out the expansive grout from the holes with sudden force.