Concrete Moisture Test Using Plastic Sheet Method

This means no numbers or data just simple observation or eyeballing of the test location and testing materials for signs of excessive moisture.

Concrete moisture test using plastic sheet method.

Firmly press the tape to create a moisture tight seal with the plastic and concrete. One such test is the plastic sheet test astm d4263. To use this method astm d 4263 standard test method for indicating moisture in concrete by the plastic sheet method a plastic sheet is tightly taped to the concrete. Tape along all four edges of the square with duct tape or other waterproof tape.

Concrete moisture and vapor test methods 1. Spread out each plastic square flat over a dry area of concrete. It is important to understand why this testing method is unreliable for determining concrete slab moisture problems. So it is suitable for the case where the application of coatings for concrete surface is planned.

The test shall be conducted prior to the use of coating. After 72 hours a humidity reading is taken under the plastic with a dew point hygrometer. Some methods of concrete moisture testing use a simple qualitative approach. 1 2 the values stated in inch pound units are to be regarded as standard.

The values given in parentheses are mathematical conversions to si units that are provided for information only and are not considered standard. The plastic sheet method was developed by astm international and involves taping a plastic sheet to the surface of the concrete to create a vapor proof seal around the plastic. Plastic sheet test astm d 4263 plastic sheet testing method used to indicate the presence of moisture in concrete. This video discusses and demonstrates the plastic sheet method for measuring moisture in concrete.

Use as many squares as needed to test all the main areas that may get flooring.