Compacted asphalt mixture density measuring device

Abstract

The invention discloses a compacted asphalt mixture density measuring device comprising a frame (1), a water storage tank (2) and a measuring system (3), the water storage tank (2) is placed below theupper surface of the frame (1), the measuring system (3) is placed above the upper surface of the frame (1), the measuring system (3) comprises an electronic balance (31) placed on the upper surfaceof the frame (1) and a net basket (32) suspended in the water storage tank (2), the net basket (32) is fixedly attached to the bottom of the electronic balance (31) by a sling (33) passing through theupper surface of the frame (1); the compacted asphalt mixture density measuring device further comprises a water supply system (4) and a drainage system (5); one end of the water supply system (4) isconnected to the water storage tank (2), and the other end of the water supply system (4) is connected to a water source; one end of the drainage system (5) is connected to the water storage tank (2), and the other end of the drainage system (5) is connected to a drainage ditch. The compacted asphalt mixture density measuring device has the advantages of quick and convenient water supply and hightest efficiency.

Description

technical field [0001] The invention belongs to the technical field of building material testing equipment, in particular to a compacted asphalt mixture density measuring device for rapid water replenishment. Background technique [0002] Asphalt mixture specimens, such as type I or relatively dense type II asphalt stick concrete, anti-skid surface mixture, green mastic macadam mixture (SMA) specimens, etc., are widely used in road construction projects. The compacted asphalt mixture density measuring device is mainly used to measure the relative bulk density or bulk volume of various asphalt mixture specimens with a water absorption rate not greater than 2% by surface dry method, and use the measured bulk density to calculate the mixture. Various important volume indicators such as the void ratio of the test piece and the void ratio of the mineral material. [0003] The existing compacted asphalt mixture density measuring device usually includes a frame, a water storage de...

AI Technical Summary

Problems solved by technology

Because this type of measurement device lacks a water replenishment device, water is added manually, that is, the water from a common faucet is used to replenish water. The operation process of adding water is cumbersome, and the waiting time during the water replenishment process is long, which seriously affects the efficiency of the experiment.

In addition, there is also a lack of drainage devices, which makes it difficult to discharge the water in the tank in time, and rarely replaces it, resulting in turbid water quality and affecting the experimental data

In addition, due to the heavy weight of the water tank and the water tank, the support surface is not stable enough, which also shortens the service life of the device and increases the cost of the experiment.

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