Concrete Moisture Test Using Plastic Sheet Method

So it is suitable for the case where the application of coatings for concrete surface is planned.

Concrete moisture test using plastic sheet method.

One such test is the plastic sheet test astm d4263. Tape along all four edges of the square with duct tape or other waterproof tape. 1 1 this test method is used to indicate the presence of capillary moisture in concrete. Spread out each plastic square flat over a dry area of concrete.

Some methods of concrete moisture testing use a simple qualitative approach. The values given in parentheses are mathematical conversions to si units that are provided for information only and are not considered standard. The test shall be conducted prior to the use of coating. This means no numbers or data just simple observation or eyeballing of the test location and testing materials for signs of excessive moisture.

The sheet is left in place for 72 hours then a dewpoint hygrometer is used to test the level of moisture that is in the air under the sheet. Plastic sheet test astm d 4263 plastic sheet testing method used to indicate the presence of moisture in concrete. Concrete moisture and vapor test methods 1. It is important to understand why this testing method is unreliable for determining concrete slab moisture problems.

1 2 the values stated in inch pound units are to be regarded as standard. Drop us a line in the comments below or give us a call at. Use as many squares as needed to test all the main areas that may get flooring. This video discusses and demonstrates the plastic sheet method for measuring moisture in concrete.

After 72 hours a humidity reading is taken under the plastic with a dew point hygrometer.