This chapter explains the basic operation of the Model 3430 Surface
Moisture-Density Gauge. Instructions for conducting a daily gauge
inspection, setting gauge parameters, taking the daily standard
count, preparing the site, positioning the gauge, and taking moisture
and density measurements are included.
CONTENTS
The Keypad .................................................................................... 3-2
Source Rod Positions ..................................................................... 3-4
Daily Inspection ............................................................................. 3-5
Turning the Gauge On ................................................................... 3-6
Gauge Parameter Setup .................................................................. 3-7
Setting Measurement Units ..................................................... 3-7
Setting the Count Time ........................................................... 3-8
Setting the Depth ..................................................................... 3-8
Selecting the Mode (Marshall/Proctor) ................................... 3-8
Taking the Standard Count .......................................................... 3-10
Site Preparation/Gauge Positioning ............................................. 3-12
Soil and Base Course Preparation ......................................... 3-12
Asphalt Surface Preparation .................................................. 3-14
Taking a Measurement – Soil Mode ............................................ 3-15
Taking a Measurement – Asphalt Mode ...................................... 3-17
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