Alpha Ecoguard Type W Specifications download pdf (Page 45)

RESTORATION & MAINTENANCE

Alpha

Moisture Test Kit

STEP 1

Use Alpha

Ecogrinder (with dust carriage attached) to remove any foreign

objects and dust from the concrete surface to insure proper adhesion of the

sealant. Strictly follow guidelines given by Occupational Safety & Health

Administration (OSHA).

STEP 2

Weigh the container with the vinyl tape seal at the test location immediately

prior to initiating the test (W1).

Note: Be sure the scale is set to grams, ounce scales will not work for this

test. Weigh to the nearest 0.1 gram and note this initial weight on the top of

the container label using a felt tip pen or permanent marker as well as the

time and date the test was started (T1).

STEP 3

Remove the sealing tape from the plastic container. Make sure the tape

does not get dirty or lost since it will be needed to reseal the container at

the end of the test.

Note: For best results, stick the tape on the outer wall of the dome unit

to keep it safe.

STEP 4

Peel off the paper protective backing from the black sealant that is around the

dome and discard. Make sure the sealant material does not contact objects or

clothing as it is very sticky and intended to provide a secure, long-lasting seal to

the concrete throughout the duration of the test.

STEP 5 & 6

Carefully remove the lid from the container that holds the calcium

chloride crystals. Do not spill the crystals.

Install the test kit on the concrete oor. First, place the open calcium

chloride container on the concrete oor. Make sure the crystals are

relatively level. If any crystals are spilled the test can be invalid.

STEP 7

Next, immediately place the dome unit over the center of the dish. Press rmly along

the edges of the sealant material to securely bond the unit to the oor. To test for an

airtight seal, press rmly on the center of the cover. The cover should resist pressure,

if properly sealed.

Allow the test kit to remain undisturbed for a period of 60 to 72 hours. Note the ambient

temperature and humidity at the test area.

STEP 8

After 60 to 72 hours, remove the dome with a razor. Retrieve the dish with the cal-

cium chloride and immediately place the lid back on and reseal using saved vinyl

tape. Re-weigh the container on the same gram scale used at the

start of the test. Record weight, date and time (W2) (T2).

Note the weight as nal weight (W2). Do not spill any of the calcium

chloride crystals from the container. If any crystals are spilled, the

test must be rerun with a new test kit.

A person using this test kit shall strictly follow the instructions given in the latest

ASTM F 1869 published by American Society for Testing & Materials.

Step by Step Instructions

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Alpha Ecoguard Type W Specifications Page 45

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