School of Engineering and Sciences
Department of Civil Engineering
Specifications
Description
The test is performed as per ASTM - D7870. MiST2, the latest condensed version, comes with an upgraded ultra-quiet pressure system and a small footprint to fit inside any size asphalt lab. MiST2 works on the principle to provide cyclic stresses and pore pressure on the bituminous sample like the stresses seen by a wet bituminous pavement from passing vehicle tires. It is designed to determine the resistance of the asphalt mixture to adhesion and cohesion problems generally known as stripping.
Specifications
Description
The test is performed as per AASHTO T 324 - 11. Suitable to run the accelerated test by rolling a small, loaded wheel device repeatedly across a prepared HMA specimen. The performance of the test specimen is then correlated to actual in-service pavement performance. This device can determine rutting, moisture susceptibility, and stripping predictions.
Specifications
Description
The test is performed as per ASTM - D8079. Asphalt Slab Compactor is a fully electromechanically based system that applies a specific load per pavement roller used in highway construction. It is used to compact to either a target mixture density or to provide a standard comp active effort to a range of different asphaltic paving materials.
The test is performed as per EN 12697-48:2021. Suitable to determine the interlayer bonding between two asphalt layers through Leutner shear head suits for both 100mm & 150mm Dia laboratory prepared samples (or field cores). Leutner shear head is a very simple device able to apply a shear displacement rate (50mm/min) across the interface of a cylindrical core, monitoring the resulting shear force. Cylindrical test specimens are subjected to direct shear loading at 20oC with constant shear rate. The development of shear deformation and force is recorded, and the maximum recorded shear stress is determined as shear strength (in MPa) at the interface between layers.
The test is performed as per EN 12697-48:2021. Suitable to determine the interlayer bonding between two asphalt layers through Leutner shear head suits for both 100mm & 150mm Dia laboratory prepared samples (or field cores). Leutner shear head is a very simple device able to apply a shear displacement rate (50mm/min) across the interface of a cylindrical core, monitoring the resulting shear force. Cylindrical test specimens are subjected to direct shear loading at 20oC with constant shear rate. The development of shear deformation and force is recorded, and the maximum recorded shear stress is determined as shear strength (in MPa) at the interface between layers.
The test is performed as per ASTM D8225-19. Suitable to determine the asphalt cracking tolerance index using cylindrical laboratory-prepared asphalt mix samples or pavement cores. A cylindrical specimen of 150mm dia is cantered in the fixture and load is applied at a constant load-line displacement (LLD) rate of 50.0±2.0 mm/min using ITS loading frame. Both the load and LLD are measured during the entire duration of the test. The CTIndex of asphalt mixture is calculated based on the test results.
The test is performed as per AASHTO T-283. Suitable to determine sensitivity of bituminous mix samples in the presence of water by determining tensile strength ratio (TST). TSR is a measure to find the sensitivity of the specimens before and after conditioning the sample at temperature of 60 °C for 24 hours. More severe conditioning such a freeze-thaw cycles (-18oC to +60oC) can be simulated with the available freezer and water bath.
Forensic investigations of pavement failures and short-term and long-term pavement performance studies.
Specifications
Description
Vertical bitumen mixer is used for mixing bituminous materials to prepare the specimens to be used for various tests. The asphalt mixer comes with a heating arrangement to maintain the required temperature (ambient to 200°C) during mixing.
Forensic investigations of pavement failures and short-term and long-term pavement performance studies.
Specifications
Description
Vertical bitumen mixer is used for mixing bituminous materials to prepare the specimens to be used for various tests. The asphalt mixer comes with a heating arrangement to maintain the required temperature (ambient to 200°C) during mixing.
Specifications
Description
A core drilling machine (petrol engine) is suitable for cutting cores up to 150 mm in diameter. Suitable for both bituminous and concrete pavements.
Suitable for compacting of bituminous surfaces layers or bituminous slab. This compactor widely used in pothole patching works on the pavements.
Infrared thermography can be used to detect thermal distribution on the pavement to perform thermal analysis. Capable of capturing thermal images with temperature range -20°c to 250°C at minimum focal length of 30cm.
Utilising advanced induction heater technology, pavement repair surfaces can be efficiently and effectively restored, ensuring long-lasting durability and enhanced safety for motorists.
Utilising the nature resource with the help of solar concentrators, we can efficiently capture and focus solar energy, providing an eco-friendly and sustainable solution for various pavement repair applications.