Concrete Floor Moisture Test

Condensed moisture accumulation under the plastic at 16 hours can indicate a problem.

Concrete floor moisture test.

Three tests must be performed for the first 1 000 sq. Cut a sheet of plastic 1 1 2 to 3 feet square. Make sure the plastic has no holes or tears. Cut clear plastic sheeting into several 24 by 24 inch squares.

For successful flooring projects it is crucial to measure moisture below the surface of the concrete slab. Purchase a tramex rh moisture test kit easiest way to test for rh in a concrete slab 2. Slice through the plastic with the utility knife measurements and the. Clean area and drill 3 4 inch hole to 40 percent of slab thickness clean vacuum out hole 3.

Other tests are surface based and do not give reliable results. Cut the plastic sheeting. How to test a concrete floor for excessive moisture 1. One of the simplest most economical test methods for determining whether there may be moisture in concrete is the astm d 4263 concrete moisture test.

And one for every 1 000 sq. Place the sheet down and ensure it is flat all. After 72 hours a humidity reading is taken under the plastic with a dew point hygrometer. For example the anhydrous calcium chloride test measures only the moisture vapor emission rate coming from the slab s surface.

Completely clean the surface of the concrete with a broom or vacuum. Testing concrete for moisture astm f2170 stipulates the use of in situ probes to determine the moisture condition of a concrete slab at the time that it will be sealed or covered by flooring material. Duct tape an 18 inch square piece of plastic onto the exposed concrete and leave it for 16 hours. How to do a relative humidity test on a concrete floor 1.

We follow the astm american society for testing and materials international standards for moisture testing. Here are the two most common types of test for concrete moisture. Testing your concrete floor for moisture moisture testing is an important aspect in providing a successful concrete floor coating project. Moisture in concrete should be measured by an anhydrous calcium chloride test kit per the astm f 1869 test method or by using an in situ probe test for relative humidity rh per the astm f 2170.