Industrial and commercial floors take heavy abuse. The older the flooring the worse shape it is in. Conventional wisdom says that such a breakdown of the floor is inevitable. There are steps you can take to protect your floor before it gets damaged. Once the damage has happened there are steps you can take to permanently repair most damaged floors.
Floor joints, are the source of many industrial flooring problems. The purpose of these joints (in original construction) is to give the concrete a controlled place for the concrete crack as it shrinks. They sometimes are called expansion joints. In theory they will expand when the concrete gets hot.Indoors, where temperature is somewhat stable, most of their function of these joints has ended after 28 days or so of concrete. Concrete does most of it shrinking in the first 28 days.
The downside of these joints in the concrete is that it gives a place for the concrete to start chipping away. See the highlighted (in blue) corners in the illustration to the right. When wheels pass across the top it hammers the edge in the opposite side of traffic flow. This breaks off tiny pieces of concrete (again drawn in blue as a triangle at the edges of the concrete joint). The bigger the area chipped out earlier, the bigger and faster additional chipping happens. Time goes on and “pot holes”start to form in the concrete joint in direct proportion to the number of times wheels have hit a given spot.This can become a major trip and forklift hazard.
The best way to prevent this concrete damage is to fill the joints with Epoxy.com – Product #11-100% Solids Flexible Epoxy Joint Filler for Saw Cut Joints. The #11 is semi-flexible so it still allows some joint movement but (unlike caulking) is firm enough to support the hard wheel as it passes over the joint, virtually
eliminating the pounding and chipping effect on the sides of the joint. See in this diagram how the #11 supports the wheel as it passes over the joint.
For application on flat surfaces Epoxy Joint Filler for Saw-Cut Control Joints Product #11 can be poured or pumped from an Epoxy.com Binary Pumping Systems. In areas where cosmetics are important mask both sides of the substrate before applying the material.
If the areas are bigger you can use Epoxy.com Product #12 blended with silica sand to make a mortar to fill the pothole, then re-cut your joint with a concrete saw as shown in the diagram here. The Product #12 can also be mixed with silica sand and used to repair areas in the center of a slab that might have started as a random crack or because of a chemical spill or due to impact damage.
If you need the epoxy mortar to set at a lower temperature and/or faster Epoxy.com Product #10 Epoxy Mortar Resin in fast or cold cure may be the best option.
Here is an outline of getting your flooring ready and some of the types of flooring we can offer you.
I can easily calculate how much material you will need for your floor. The patching will take a little more effort and some estimation of the geometry of the repairs from you:
- Fill joints with Epoxy.com Product #11 – epoxy.com/11.aspx.If there is spalling at the joint see “pot hole” repair below.
- Pot holes
- Oil Saturated areas (if any) – Epoxy.com Product #201 – epoxy.com/201.aspx
- Areas with moisture vapor transfer issues (if any – see epoxy.com/surfaceprep.aspx ) with Epoxy.com Product #830 – www.epoxy.com/830.aspx
- All areas not subject to the items above primed with
- Epoxy.com Product #12 – www.epoxy.com/12.aspx or
- Epoxy.com Product #899 – www.epoxy.com/899.aspx.
- Floor Coating – High Build
- Seamless Flooring
- Chip Flooring – epoxy.com/chips.aspx or
- Solid Colored Standard chemical resistance Flooring
- Product #24 Pigmented mortar – www.epoxy.com/24.aspx and silica sand
- Top coated with Product #1 – www.epoxy.com/2.aspx or
- For high chemical resistance Epoxy.com Product #2 – epoxy.com/2.aspx
- Epoxy Quartz Flooring – www.epoxy.com/15.aspx.
- Chemical Resistant Epoxy Flooring
Still not sure? Email epoxy.com Technical Support firstname.lastname@example.org call us at 352-533-2167. We will help you select the right product for your job. We can also help you estimate how much of it you need, and quote you on those quantities.
You can also visit us at www.epoxy.com 24 hours a day 7 days a week.