沥青大米试验

米测试

的 asphalt rice test was developed to help determine the percentage of air voids in an HMA sample, otherwise known as the theoretical maximum specific gravity of asphalt test. ASTM and AASHTO test methods determine the specific values to calculate the air voids and also show aggregate bitumen absorption.

的 test (originally developed by engineer James Rice) ultimately provides a compaction target for the asphalt laydown based on air void percentage. 的se are a large factor in determining the ultimate quality of the asphalt – a low percentage can cause shoving and rutting of the pavement while a high percentage can cause the asphalt to damage from moisture and fatigue.

的 rice test is an invaluable tool that is routinely used by DOTs, labs and asphalt producers. Refer to ASTM D2041 and AASHTO T209 testing standards for specific information and guidelines. 洪堡’s asphalt rice testing equipment is designed and built to high quality standards for durability and accuracy.

真空比重瓶 – 使用d to determine maximum specific gravity of bituminous paving mixtures. Kits for different sample sizes, large capacity and in stainless steel are also available.

De-Airing and Vibrating Tables – 使用d for maximum specific gravity and density determinations of mixtures, and as an agitator in Rice testing to keep sample material loose for more reliable test results.

真空泵 – Remove the free air from samples while they are agitated to remove entrapped air. 洪堡 features a variety of pumps specific to your application and aligning with appropriate ASTM and AASHTO specific gravity applications.

米测试 Process Control - - - AutoRice控制器 is an automatic control unit allows lab technicians to conduct maximum specific gravity tests with the press of a button. 的 PumpSaver increases accuracy and repeatability for tests requiring a vacuum pump. 的 数字压力计 replaces mercury-filled manometers used in Rice testing.

比重 Test 配件 -空气干燥装置, 干燥剂, de-airing flask attachments and a slow-release valve for pycnometers are also available.

For more detailed information about Marshall Testing, please visit our 沥青马歇尔试验 着陆页.

洪堡 offers a variety of products for 沥青大米试验ing, in-stock and ready to ship. If you have questions or need help selecting equipment, please call us at 1.800.544.7220或使用我们的 问洪堡 form.