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The fully automatic pneumatic oedometer is used to measure the compressive properties of soil under various loads and confining conditions. The system consists of an oedometer, a pneumatic pressure controller, a multi-channel communication converter, and a data acquisition system. The consolida...

The shear strength of soil is the ultimate strength of the soil against shear when one part of the soil slides against another part under the action of an external force. This test involves applying horizontal shear forces directly along a fixed shear plane to several specimens of the same soil...

The asphalt mixer primarily consists of a frame, a variable-speed agitator (consisting of a motor, gearbox, and impellers), a lifting mechanism (primarily composed of a separate motor, worm gearbox, column, guide rods, and limit devices), a heating pot assembly (consisting of a double-layer metal...

FWD falling weight deflectometer is one of the most advanced non-destructive testing equipment for deflection detection in the world. It has the characteristics of fast detection speed and adaptability to changing traffic environments.

Pavement deflection is a key indicator for measuring the strength of flexible pavements and is the primary parameter characterizing the overall bearing strength of highway subgrades and pavements. Deflection is generally defined as the vertical rebound deflection (rebound deflection) or total ver...

A plate load tester is an instrument used to test the foundation coefficients of compacted coarse and fine soils, as well as roadbeds and base courses. Its primary uses include testing the bearing capacity and deformation characteristics of foundations, making it suitable for construction and qua...

The Frass Brittle Point Tester is primarily used to measure the elongation of various asphalt specifications, as well as materials such as liquid asphalt distillation residues and asphalt emulsion evaporation residues. It automatically calculates and displays the average elongation of three sam...

A penetration test uses static force to press a probe into the soil at a constant rate. Using a force sensor within the probe, the penetration resistance experienced by the probe is recorded using electronic measuring instruments. Since the magnitude of the penetration resistance is related to ...

The Asphalt Floating Tester is a device used to measure the floatability of materials such as slow-setting liquid petroleum asphalt distillation residue and coal tar pitch.

Soil compactor is a type of construction equipment, available in heavy-duty manual compactors and CNC multi-function electric compactors. It is primarily used to determine the optimum moisture content and weight per unit volume of compacted soil, which serve as a basis for controlling soil moistu...

Soil compaction tests are used to understand the compaction of backfill foundation soil, effectively control project quality, and provide compaction data for on-site rolling. They are important technical indicators for ensuring backfill soil quality.

This standard specifies a method for determining the failure strain and stress of asphalt using a direct tensile test. This method can be used on unaged asphalt materials or on asphalt materials after undergoing the Rotating Thin Film Oven Test (RTFOT) or the Accelerated Asphalt Aging Vessel (P...