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Hazards of Cast-in-Place Asphalt Mixtures
Acridine: Acridine is irritating to both skin and mucous membranes. Its dust particles and gases can easily trigger sneezing, and contact with the skin may cause itching and a burning sensation.
2013-03-27
Daily Maintenance of Cast-in-Place Asphalt Mixtures
Daily Maintenance of Cast-in-Place Asphalt Mixtures: 1. Instruments and equipment shall not be disassembled, modified, or used in a dismantled state without authorization. If it is indeed necessary to develop new functions or carry out renovations and upgrades, approval procedures must be followed according to the hierarchical management authority before implementation. 2. Regularly maintain and service the equipment, and store it in a dry, well-ventilated area. For instruments and equipment that have been left unused for extended periods, they should be periodically powered on and operated to prevent moisture and mold from damaging the equipment and its components. 3. Establish a regular verification and calibration system for large-scale, high-precision, and valuable technical instruments and equipment, ensuring that they consistently meet the required technical specifications. Keep accurate records of their usage.
2013-03-20
Notes and Requirements for Bending Creep Tests
When using the equipment, carefully read the technical manual, familiarize yourself with the technical specifications, operational performance, usage methods, and precautions, and strictly follow the step-by-step instructions provided in the instrument’s user manual.
2013-03-13
Construction of Cast-in-Place Asphalt Mixtures
The term "cast-in-place asphalt mixture" literally means "flowing pavement." It refers to asphalt concrete that is poured in a fluid state, eliminating the need for compaction during paving—simply spreading and leveling it out completes the construction process. Cast-in-place asphalt concrete is classified as dense-graded asphalt concrete. Its mixtures are characterized by high fine aggregate content, high mineral powder content, and high asphalt content. The relatively high asphalt content keeps the aggregates suspended. Unlike hot-mix asphalt concrete, cast-in-place asphalt concrete has a very low void ratio and its internal voids are discontinuous. As a result, cast-in-place asphalt concrete is impermeable and does not suffer from water damage within the layer. With its higher asphalt content, cast-in-place asphalt concrete exhibits superior performance.
2013-03-06
The convenience of the rotary compactor
The rotary compactor can compact asphalt specimens to a specified height or for a predetermined number of rotations. During each rotation, the angle is precisely recorded to ensure accuracy. If you wish to adjust the rotation angle, you can easily do so via buttons. Featuring a lighter weight, a smaller base, a compact design, a robust steel frame, a stable electronic control system, and a quiet operating environment, this rotary compactor has won widespread acclaim from users. This model can store up to 20 sets of test data, comes with a large-size backlit display, and includes a USB port for printing or exporting test results. All these advantages make it the most user-friendly rotary compactor on the market.
2013-02-27