Pavement material dynamic water pressure washing tester capable of metering washing water amount

Abstract

The invention discloses a pavement material dynamic water pressure washing tester capable of metering washing water amount. The pavement material dynamic water pressure washing tester comprises a closed test box and a high-pressure water pump, wherein a pipeline is arranged between the closed test box and the high-pressure water pump and comprises a dynamic water loading pipe and a dynamic water unloading pipe; one end of the dynamic water loading pipe is connected with the high-pressure water pump, and the other end of the dynamic water loading pipe is connected with the closed test box; a water supply electromagnetic valve is arranged on the dynamic water loading pipe; one end of the dynamic water unloading pipe is connected between the water supply electromagnetic valve of the dynamic water loading pipe and the closed test box, and the other end of the dynamic water unloading pipe is provided with a metering valve for metering the washing water amount and a first metering water tank. The pavement material dynamic water pressure washing tester capable of metering the washing water amount can meter the clockwise and anticlockwise dynamic water washing amount and the unidirectional dynamic water washing amount within a cycle and is precise in metering result, and the metered washing water amount conforms to an actual washing water amount.

Description

technical field [0001] The invention relates to a pavement material property detection test device, in particular to a pavement material dynamic water pressure scouring tester capable of measuring the scouring water volume. Background technique [0002] Rainwater enters the interior of the pavement material through the gaps in the pavement material. When the wheels pass by at high speed, the hydrodynamic pressure generated by the vehicle load on the road surface changes from positive pressure to negative pressure in a short time. Under the action of water pressure scouring, the aggregates are peeled off, and the cracks on the road surface continue to extend until they are penetrated. The scouring water volume of pavement materials can not only reflect the bonding performance of pavement materials (asphalt, cement) and aggregates, but also reflect the water erosion resistance of pavement materials. Domestic scholars have carried out relevant research on the damage of hydrody...

AI Technical Summary

Problems solved by technology

Domestic scholars have carried out relevant research on the damage of hydrodynamic pressure to asphalt pavement. The existing pavement material scour testers mainly include foreign rotary brushes, vibrating tables, and pavement material hydrodynamic pressure tests designed by various universities. However, none of the above-mentioned test devices can measure the amount of flushing water, and it is not convenient to judge the change process of the anti-seepage and drainage of the test piece with the flushing.

Images