沥青混合料设计 Testing

沥青混合料设计

沥青, 或者沥青混凝土, is the most commonly used material for the construction, maintenance and repair of roads and highways. It occurs in natural deposits (bitumen) or may be found in a refined product. 的 bitumen is utilized as binder, mixed with aggregate particles and designed specifically for applications which are affected by location, 气候和其他因素.

Superpave asphalt mix design (Superior Performing 沥青 Pavements), originally was accredited by the 运输ation Research Board (TRB) back in 1984 and received additional governmental funding in 1991 through ISTEA. This methodology was meant to address the different and unique climate and 交通 situations in various parts of the country. Superpave mix design is used in all but one U.S. 状态. It was used to test performance similarly to the Marshall and Hveem methods. 然而, many factors have changed since the original Superpave development and are currently being addressed with 平衡混合设计.

More recently the concept of 平衡混合设计 (BMD) is defined as an asphalt mix design that uses performance tests on conditioned specimens and addresses distress factors, 包括老化, 交通, 气候和地理位置.

洪堡 offers a complete line of solutions for asphalt design mix testing.

加载框架 for CBR and Marshall testing, available with or without data acquisition. 新 Automated Balanced Mix Load Frame was designed to provide precise test rate control for balanced mix design samples. 洪堡 also features a complete line of Load Frame accessories and replacement parts.

马歇尔击实 Testing machines test asphalt mixtures for stability, density and void measurements, flow testing and specific gravity.

Superpave回转 压实工具 are used to simulate and reproduce real compaction conditions of road paving operations. 支持s standard mix testing in addition to cold emulsified asphalt mixes.

搅拌机 for asphalt and other materials are available in different capacities, in both stationary and mobile designs. 的 军需官 sample splitter is ideal for dividing the larger samples that are required in Superpave.

水浴锅 are used for preparing and conditioning of stability specimens and are fully insulated to maintain constant temperatures.

轧辊压实机 allow the testing of slabs of paving materials to target mixture densities equivalent to those of full-scale compaction equipment. 的y are commonly used to beam fatigue and wheel tracking tests.

马歇尔混合设计 测试设备 is integral in preparing asphalt test specimens f或使用 with mechanical and hand compactors. For more detailed information about Marshall Testing, please visit our 沥青马歇尔试验 信息页面.