Epoxy Injection – Minimum Crack Size

How Small a Crack in Concrete Can Be Epoxy Injected?

Norm:
Typically a crack that is 30 or 35 mils or larger (about 1/32 inch) can be epoxy injected. You can get into even smaller cracks under the right conditions with Epoxy.com Product #308 Ultra Low Viscosity Injection Resin for Load Bearing Applications an Ultra-Low Visocosity Epoxy Resin System for use as epoxy injection or low viscosity epoxy mortar resin. It is 100% solids and is mixed 2:1 by volume. Meets or exceeds the requirements for ASTM C881 Types I and IV, Grade 1, Classes B &C. Learn more on the Epoxy.com Website or contact Epoxy.com Technical Support by email or call 352-533-2167.

One of the most versatile, problem solving products available in epoxy systems today is Epoxy Injection Resin. Structural restoration of concrete by epoxy injection is very often the only alternative to complete replacement. It therefore results in large cost savings. Injection protects the rebar and stops water leakage.

Epoxy Injection Resin is a system for welding cracks back together. This welding restores the original strength and loading originally designed into the concrete. Epoxy injection restores the structural qualities the concrete design intended. In other words under most conditions it makes the concrete as good as new. It creates an impervious seal to air, water, chemicals, debris, and other contamination.

A crack, obviously, is a sign of failure caused by stresses, inadequate design, improper curing, etc. One of the dangers of a structural crack is the effect that it has on the reinforcing bar. The reinforcing represents one of the main structural values of the concrete.

Cracks left unprepared allow moisture, road salts and other contaminants to penetrate and attack the rebar. The rebar deteriorates, losing the structuEpoxy Injection of concreteral value. Loosing the entire structure is often the result.

Epoxy injection resin has two purposes. First, it effectively seals the crack to prevent the damaging moisture entry. Secondly, it monolithically welds the structure together. Most people assume that this welding of the structure is the most important result of the repair. Actually what is most important is the sealing.

The sealing properties of the injection prevents premature deterioration of the reinforcing. This can be of equal, or in some cases greater importance than the structural welding. It would theoretically always be desirable to get this welding effect.

Crack Analysis

As with all repair and rehabilitation of concrete, the initial job analysis is by far the most important step. Epoxy Injection Resin will weld concrete cracks but, of course, will not repair the cause of the cracking.

Analyze each potential injection application to determine the exact cause or causes of the cracking. Correcting the cracking problem can be fairly simple, or may be difficult involving design changes.

Consult a structural engineer when design changes are necessary. Do this before starting the injection. Repairing cracks by Injection is effective after these design changes. Prevent future cracks by fixing the original cause of the cracking, when ever possible.

Parking garages are an example of cracking problem that require a structural engineering analysis. Often inadequate design for expansion/contraction is the cause for parking garage structural cracking. Avoid weld injecting a crack if there are not enough expansion joints. Sometimes flexible overlays such as Epoxy.com System # 485 can be used to overcome this defect. This does not however encapsulate the rebar in a way that will totally stop the premature deterioration of the steel. Often times additional joints are needed, thus the analysis of cracking problems is critical. more…

13 Responses to Epoxy Injection – Minimum Crack Size

  1. Ronna Goeden says:

    Superb post! I absolutely consent with you.

  2. […] Epoxy Injection – Minimum Crack Size […]

  3. epoxy flooring installers phoenix says:

    Neat blog! Is your theme custom made or did you download it from
    somewhere? A theme like yours with a few simple adjustements would really make
    my blog shine. Please let me know where you got your design.
    Thanks a lot

  4. stamped concrete patio Nh says:

    Excellent post. I was checking continuopusly this
    weblog and I’m inspired! Extremely helpful info specially the last
    part 🙂 I take care of such info much. I used to be looking
    for this particular information foor a very long time.
    Thanks and best of luck.

  5. hardwood says:

    Great post. I’m going through some of these issues as well..

  6. Lutfur Rahman says:

    I need to declare I’ve already been in search of some good post masking matter and I ultimately identified this site. I’m extremely delighted to convey that I identified just the thing when i needed. I’ll always bookmark site and also keep coming back here more frequently. Appreciate it!

  7. Grout Removal Tips says:

    Way cool! Soome very valid points! I appreciate
    you writing this write-up and the rest of the website is also very good.

  8. home builders guarantee says:

    Amazing! Its truly remarkable post, I have got much clear idea about froom this article.

  9. Grout removal says:

    Fantastic goods from you, man. I have understand your sstuff previous
    to and you’re just too magnificent.
    I cant wait to read much moire from you. This is actually a wonderful
    site.

  10. Epoxy coating says:

    .
    I’ve read this plst and if I could I desire to suggest yoou
    few interesting things or advice. Perhaps you could write
    next articles referring to this article. I deskre
    to read even more things about it!

  11. Aqua Ornament Castles - Penn Plax SUPER CASTLE - B says:

    Somebody essentially assist to make significantly posts I might state.

    This is the first time I frequented your web page and thus far?
    I surprised with the research you made to make this particular
    publish incredible. Fantastic task!

  12. floor fitters North West London says:

    It’s remarkable in favor of me to have a website, which is helpful in favor
    of my know-how. thanks admin

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: