Compaction of asphalt concrete compacted asphalt hydrometer hydrometer Bitumen porosity ..

Patent Number: ZL201320080171.0 three-year warranty effect: confirm the accuracy of specific gravity of compacted asphalt mixture, because minor errors will be reflected in the significant volume of error, it is not so noticeable. Features: 1, vacuum saturation method is applied to compacted asphalt mixture bulk density, porosity, water absorption. 2, sealing wax method is applied to water absorption> 2% of compacted asphalt mixture. 3, water absorption <2% of the dense packing density asphalt mixture. Specifications: GB / T2413, T8959, ASTM D70, D6572, YB / T5300, AASHTO T166, T 228 standard procedures. Step 1, put the dry sample measurement table, press the M key. Step 2, the sample was treated sealing wax. Step 3, after sealing wax treatment sample put measuring table, press the M key. Step 4, sealing wax treatment, turn on the water in the sample hanging bar, press M key to display the density immediately. Model TWD-150B Test type: solid, granules, films, the maximum floating body weighing: 150g Weighing accuracy: 0.001g precision density: 0.0001 g / cm3 display value: density, porosity, water absorption temperature, the solution compensation setting: 19.999 solution compensation can be set online interface: RS-232 Advantages: 1, the body of aluminum alloy casting, structural stability. It does not exist because of keystrokes and the impact sensing element to detect, causing instability screen appears. 2, the body is integrally formed, because there is no solution overflow penetrate the circuit board and sensor damage caused problems. 3, the machine's sensors measure the position and the same platform, because there is no corner of the load factors, resulting Deviation measurements. 4, the screen mining elevated independent design and measurement station separation, the panel due to infiltration and adhesions solution, and there is no question of damage. 5, the equipment weight to volume expansion, solution expansion and air buoyancy compensation.