Fully automatic asphalt mixture maximum theoretical density meter * for sale

HLM-3 typeFully automatic asphalt mixture maximum theoretical density meter * for saleUsed for determining the theoretical relative density of mixtures using vacuum method, for asphalt mixture mix design, road condition adjustment, or pavement construction quality management calculation of void ratio and compaction degree. Not applicable to porous aggregate mixtures with a water absorption rate greater than 3%.

HLM-3 typeFully automatic asphalt mixture maximum theoretical density meter * for saleConstruction: This instrument consists of a frame, a vacuum pump, a vibrator, an air valve, a vacuum gauge, a vacuum container, and control electronics. It is easy to use and can perform parallel tests on two samples simultaneously.

HLM-3 typeFully automatic asphalt mixture maximum theoretical density meter * for saleTechnical parameters:

Power supply: 220V ± 10% 50Hz

Container capacity: 4300ml x 2 pieces

Vacuum pump: 120W

Pressure range: 0-100Kpa

Vibration power: 30W

Fully automatic asphalt mixture maximum theoretical density meter * for saleUsage:

1. Put the prepared mixture samples into the container according to the specified quantity before the experiment, and add an appropriate amount of water at the specified temperature to fully immerse the samples. The amount of water should not be too much to prevent damage to the vacuum pump caused by suction.

2. Place the negative pressure container into the positioning ring of the vibration table, cover the container with the lid, and ensure that the edge of the container is in contact with the rubber ring * in the groove of the lid to prevent external air from entering the container during pumping.

3. Close the air release valve (turn it to the right to prevent air leakage), turn on the power switch (the switch light is on), press the suction/stop button, and the vacuum pump starts to draw negative pressure. When the negative pressure gauge indicates a negative pressure of 97.3Kpa (0.973mKpa), press the suction/stop button, and the vacuum pump stops working. After maintaining this pressure for 15 minutes (the vibration device should not be turned on during pumping), press the vibration button to start the vibration of the instrument vibration table. There are two types of vibration modes, one is continuous vibration, and the other is intermittent vibration, which means the vibration, intermittent, and re vibration cycle work. When stopping the vibration, press the vibration/stop button again to stop the vibration of the vibration table.

4. If there is insufficient vacuum pressure during the experiment, check whether the connections between each component are tight.

The theoretical high relative density meter for asphalt mixtures is manufactured and produced according to T0711-1993 in the Test Code for Asphalt and Asphalt Mixtures in Highway Engineering (JTJ052-2000).

Precautions for HLM-3 type asphalt mixture theoretical high relative density meter:

1. Before using the instrument, it is necessary to check whether the lubricating oil in the vacuum pump is in place. If the oil level is insufficient or the oil quality deteriorates, it should be added or replaced in a timely manner (No. 32 mechanical oil). Vacuum pumps are strictly prohibited from operating without oil. It is strictly prohibited to block the exhaust port during operation

2. After placing the sample in the container, the water level should be 3cm below the upper edge of the container to prevent water from entering the vacuum pump and causing the lubricating oil to deteriorate and damage the vacuum pump.

3. If there is no pressure indication on the vacuum pressure gauge when the vacuum pump is pumping negative pressure, it should be shut down to investigate the cause before restarting. Vacuum pumps are prone to damage when operating without negative pressure for a long time.

Cangzhou Yixuan after-sales service tenet:

● Provide lifelong repair and maintenance services, and be responsible for timely supply of spare parts for life;

Provide technical consultation and services;

New products are subject to free warranty for the entire machine according to the purchase and sales contract,

During the warranty period, no on-site fees, handling fees, labor costs, etc. will be charged, and all damaged parts under normal use will be replaced free of charge;

Outside the warranty period, no on-site fees, handling fees, labor fees, etc. will be charged, only the cost of replacement parts will be charged;

Yixuan has an after-sales service guarantee system that covers the after-sales service network of various cities, counties, and districts in China. In case of any quality problems during product use, Yixuan's after-sales service system is complete, including subsequent fault confirmation, technical guidance, on-site maintenance, and regular follow-up.

The cement testing instruments produced by Cangzhou Yixuan include NJ-160 cement slurry mixer, JJ-5 cement mortar mixer, ZS-15 cement mortar compaction table, 40 * 40mm cement compression fixture, FZ-31A lightning boiling box, DKZ-500 cement electric bending machine NLD-3 type cement mortar flowability tester, FYS-150B type negative pressure sieve analyzer, LD-50 type Rockwell clamp tester, LJ-175 type Rockwell clamp, PE60 * 100 type E-type crusher, SM φ 500 * 500 type cement test mill, Ø 175 disc grinder, cement paste standard viscosity and setting time tester (Vicat apparatus), BY160 type cement specific length meter, SHBY-40A type cement mortar specimen curing box, (40B) type cement standard curing box, BYS type constant temperature and humidity curing room control instrument, cement sample bucket, SBT-9 type fully automatic Brinell permeability ratio surface tester, CZF-6 type cement component Measurement instrument, Ca5 type cement free calcium oxide analyzer, CCL5 type chloride ion analyzer, AMT1 cement slurry Marsh time automatic measuring instrument, DL sulfur trioxide measuring instrument, SHR-650II cement hydration heat measuring instrument, YZF-2A cement stability test autoclave. Fine aggregate water absorption tester (saturated surface).