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ASTM D 2950, C 1040, D 6938
The Troxler RoadReader nuclear moisture / density gauges are used by many contractors, engineers and highway departments for compaction control of soil, aggregate, concrete and full asphalt. The ASTM standarts numbers D 2922, D 3017, D 2950 and C 1040 are met or exceeded by these gauges. Two test models are avaliable for density determination: Direct transmission and Backscatter. The operator selects the mode depending on the material type and thickness of the layer being tested. The model 3430 is avaliable with keypad, display and operator’s manual in languages and is the siplest most economical gauge offered by Troxler. The Model 3440 provides 30 special functions, storage of up to 1000 test records, an 18-month warranty and many more options that make it simple to operate and a necessity for all technicians.