Hamburg wheel test
WebThe city of Hamburg finalized the test method and developed a pass/fail criterion that would guarantee mixtures with very low susceptibility to rutting. The Hamburg Wheel-Tracking Device costs approximately $60,000. This device was originally used to measure rutting susceptibility. The test required 9,540 wheel passes at temperatures of 40 C or ... WebThe Hamburg wheel tracking device can be used to determine the resistance of Hot Mix Asphalt (HMA) to rutting and moisture sensitivity. Matest model SmarTracker meets and exceeds EN and AASHTO. ... Now you can perform wet or dry test with both wheels or run one wheel under dry and one wheel under wet condition simultaneously during a single …
Hamburg wheel test
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WebThis test seems to be most widely used in the Eastern U.S. This is a destructive test. Hamburg Wheel Tracker (HWT) The HWT test was developed in Hamburg, Germany and used to measure both rutting and stripping risk. If passing, mixtures were accepted in Germany for five-year warranties. This test was first adapted for the US by Colorado DOT. WebApr 18, 2024 · The Hamburg Wheel Tracking Test (HWTT) is a widely used routine laboratory test for identifying and screening hot-mix asphalt (HMA) mixes that are prone to rutting. The standard HMA pass-fail screening criterion under the current HWTT protocol is 12.5 mm rutting at 50°C. However, Texas has experienced record high summer …
WebJul 11, 2015 · Testing methods such as the boiling water test and immersion test are used to characterise the adhesive properties of uncompacted mixes, but none of these tests can quantify adhesion . The Indirect Tensile Test [ 18 ], Hamburg Wheel Tracking Device [ 19 ] and Saturation Ageing Tensile Stiffness (SATS) test [ 3 , 20 – 22 ] are methods which ...
WebAs the name suggests, the Hamburg-wheel tracking device (also known as the Loaded Wheel Tracker) was developed in Hamburg, Germany by Helmut-Wind, Inc. and was introduced in the USA in 1990 [15]. The LWT test uses a loaded-rolling steel wheel (cyclic load) across the surface of submerged asphalt mixtures and has been WebMar 11, 2024 · The Hamburg wheel-tracking test (HWTT) is commonly used to evaluate the rutting resistance and moisture susceptibility of asphalt mixtures. Over the years, different test parameters have been proposed, including the traditional ones specified in AASHTO T 324 and several alternatives developed by asphalt researchers.
WebThe Hamburg Wheel Tracking Test (HWTT) per AASHTO T 324 is widely used by asphalt researchers and pavement engineers to evaluate the rutting resistance and moisture …
WebJan 1, 2024 · In the Hamburg test, passes to failure is defined as the number of wheel passes required to produce a 12.5-mm rut depth on the specimens. Similar to a rutting-based evaluation, materials ipaws warning system templatesWebto test samples in the Hamburg Wheel-Tracking Device.) 1. SCOPE. 1.1 This method describes the testing of submersed, compacted bituminous mixtures in a reciprocating rolling wheel device. This test provides information about the rate of permanent deformation from a moving, c oncentrated load. A laboratory compactor is used to prepare slab ... open-source software development drabWebAsphalt Wheel Trackers by Pavement Technology are multi-function Loaded Wheel Testers. Trackers are used for accurate evaluations of rutting, fatigue cracking, and moisture susceptibility for hot and cold asphalt mixes. Both models meet requirements for AASHTO T 324 Hamburg, T 340 APA Rut Test, and other wheel tracking tests. ipaw trackerWebSmarTracker™ Hamburg Wheel Hamburg Wheel Tracker AASHTO T-324 US Patent No. 9964,471. Intelligently designed with the end-user in mind, the new InstroTek SmarTracker™ offers several unique features that make testing safer, easier, and more accurate than existing more expensive wheel tracking systems. ipawview.comWebHamburg Wheel Tracker - SmarTracker™. HWT-Pro™ Hamburg Wheel Tracker Verification & Calibration System. Hamburg Rut Verification Apparatus $ 1,799.00. Hamburg (HWT) Sample Trimming Jig $ 399.99. HWT Wave-Pro - Sine Wave Verification Kit $ 7,750.00. IDEAL-RT Rutting Jig $ 895.00. HMA's 16" Blade CoreSaw Package - … open-source software development calmWebrequired criteria for the Hamburg Wheel Test (IL mod AASHTO T-324) and the Tensile Strength Test (IL mod AASHTO T-283). The Department will perform a verification test … open-source software development helplessWebThe GCTS Hamburg Wheel-Tracker directly applies the vertical load to the specimens during testing. Most other systems use a weighted cantilever arm to apply the vertical load, resulting in excessive vibrations and an inability to accurately measure the vertical load. ... (+/- 4.5N) for the duration of the test. The HWTT-100 meets all the ... ipaws warning system