H-4234.XX
界限含水量 (Liquid Limit Testing)
Recommended for performing liquid limit test in accordance with ASTM specifications.
H-4230
Liquid Limit Machine, Liquid Limit
Unit consists of brass cup, cam mechanism, carriage and crank mounted on a hard rubber base.
H-4226.XX
Motorized ASTM Liquid Limit Machine
Motorized liquid limit machine gives uniform testing with greater degree of accuracy.
H-4228
Liquid Limit Machine, ASTM with Counter
Hand-operated liquid limit machine features mechanical revolution counter attached to the shaft.
H-5236
锥形穿透仪，数字
Features a spirit level for maintaining a level testing position.
H-5237.XX
锥形穿透仪，数字， 半自动
Equipped with a magnetic controller device with an electronic, digital, programmable timer.
H-4236
Cone Penetrometer, Dial Indicator
Easily readable and is graduated in 0.1毫米的分歧.
H-4237.4F
Cone Penetrometer, 半自动
Ensures a free-falling cone during the five second test.
H-4233
Liquid Limit Resiliency Tester
使用d to test resiliency of hard rubber base of liquid limit machines.
H-4222A.XX
硬度计
Sealed springs maintain load deflection rate to a tolerance of .0004".
液限检测工具
The consistency and behavior of soils vary throughout. 因此, qualities such as moisture content, hardness and reliability are important to test within specimens in order to assure stability in the structures they support. To assess these characteristics, Atterberg limit tests are done often to measure water content within on-site soil.
One way to measure the critical water content of fine-grained soil is through its liquid limit. Liquid limit is defined as the water content at which the behavior of clayey soil changes from plastic to liquid. 使用 ASTM标准D4318, the liquid limit test of soil determines this transition over a range of water contents. More specifically, it gives valuable information regarding the state of consistency of soil on-site.
A liquid limit test of soil can be determined using two methods:
- 卡萨格兰杯法, which is widely used in the United States, defines liquid limit as the moisture content required to close a metal cup filled with soil paste a distance of 0.5 inches using a liquid limit machine. This method is normally run at several moisture contents to determine which requires 25 blows to close the groove.
- The cone penetration test for liquid limit is more prevalent in Europe and measures the moisture content at which a cone will penetrate a soil sample a distance of 20 mm in approximately 5 seconds. This less is less dependent on the operator when determining a soil’s liquid limit.
在每个测试类型中, many data points are collected and used to plot a flow curve which ultimately establishes a liquid limit. To ensure an accurate curve, high-quality equipment must be used in these tests. These 限液机 and accessories should follow ASTM standards and produce error-free results time and time again.
洪堡 provides a wide variety of equipment for the liquid limit test of soil. 与 限液机 for the Casagrande cup method and 圆锥贯入仪 for the penetration method, you are sure to find products for all of your testing needs. 整个 阿特伯格液体极限试验 也可用.
For additional information about 洪堡's 界限含水量 products, visit download download the 界限含水量 Testing datasheet 或浏览我们的 Geotechnical Testing and Engineering landing page 有关土壤测试的更多信息.
If you have questions or need help selecting the liquid limit testing tool that is right for your needs, 请在1点打电话给我们.800.544.7220或使用我们的 问洪堡 form.