Speedy moisture tester

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Student Manual

Lesson 5- Speedy Moisture Tester

Version 1.0- 3/09

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Student Manual

Lesson 5- Speedy Moisture Tester

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Student Manual

Lesson 5- Speedy Moisture Tester

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Student Manual

Lesson 5- Speedy Moisture Tester

The Speedy Moisture test is a proven, efficient method of determining the moisture content ofmaterials in the field. The results of the Speedy test, combined with the nuclear density gauge are standard accepted practice for determining in-place material density (verification of compaction effort) in the field. Typically used when nuclear density gauge or material being tested does not permit nuclear moisture content tests.

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Student Manual

Lesson 5- SpeedyMoisture Tester

FM 5 507 describes in detail the parts of the typical Speedy kit 5-507 kit.

Similar to left except electronic rather than beam scale.

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Student Manual

Lesson 5- Speedy Moisture Tester

We will review t e Speedy Moisture Test in its’ entirety , starting with Calibration e e e the o stu e est ts e t ety sta t g t Ca b at o requirements throughthe performance of the test.

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Lesson 5- Speedy Moisture Tester

FM 5-507 2.1 Calcium carbide pressure moisture tester: 20 gram or 26 gram. Testers owned by the FDOT shall be calibrated at least every six (6) months by the District Density Engineer (DDE), or designee, and at anytime there is reason to suspect malfunction. A calibration kit shall beused. Testers not owned by the FDOT, but used for required testing, shall also be calibrated every 6 months. Records of calibration shall always accompany the tester & shall be presented to the department upon request. The p y p p p q calibration kits used by the DDE’s, or designees, shall be calibrated by the State Materials Office at least once a year.

2.2 Tared scale: Tared scales owned bythe FDOT shall be calibrated or verified at least every six months, and certified by the DDE, or designee. Tared scales not owned by the FDOT shall also be calibrated every 6 months. Records of calibration shall always accompany the tared scales & shall be presented to the department upon request. p y p p p q The Technician, using the weights required by Section 2.7, shall check tared scales atleast once a day.

Typical FDOT Calibration Record

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Lesson 5- Speedy Moisture Tester

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Lesson 5- Speedy Moisture Tester

FM 5-507 5 507 3.1 Level scale using wedges or sandbag leveling procedures. Scale should be stable at the completion of the leveling procedure. If using the electronic scaleversion, it is still very important that the scale be level and “zeroed” or tared properly. As there are several different scale manufacturers, please p p y ,p refer to the electronic balance user instructions for your model.

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Lesson 5- Speedy Moisture Tester

FM 5-507 5 507 3.2 Add Reagent to body of tester: For 20-gram testers add 2 scoops, and for26gram tester add 3 scoops. Put the 2 steel balls into body of the tester, using caution not to damage body and/or gauge of the tester. The steel balls are used to assist in breaking down some of the more course grained materials or clayey types of material to ensure proper reaction with the calcium carbide reagent. THE FDOT PRACTICE CALLS FOR STEEL BALLS TO BE USED WITH ALL TESTS.

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Student Manual

Lesson 5- Speedy Moisture Tester

FM 5-507 3.3 Obtain a representative sample of material using an appropriate tool to obtain the sample. A representative sample shall contain material from throughout the test depth. Place in a moisture-proof container. The sample should be thoroughly mixed, either by shaking the container or by stirring with an appropriate...
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