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Highway aggregate testing instrument series

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LHLDY-0362 Coarse Aggregate Flow Time Tester

LHLDY-0362 Coarse Aggregate Flow Time Tester

This instrument is used to determine the time required for a certain volume of coarse aggregate to pass through a fixed size opening, indirectly evaluating the angularity of the coarse aggregate. This method is applicable to the angularity determination of coarse aggregate with a nominal maximum size of 9'~19mm.
Los Angeles grinder

Los Angeles grinder

This method is used to determine the Los Angeles abrasion value of coarse aggregate to evaluate the aggregate's resistance to crushing.
High-speed polisher

High-speed polisher

This instrument is used for indoor simulation of the polishing effect of car tires on road surfaces. By accelerating the polishing of the aggregates used on the road surface, the wear resistance of the aggregates can be measured.
LHDY-3D Aggregate Strength Testing Instrument

LHDY-3D Aggregate Strength Testing Instrument

The aggregate soundness testing apparatus (instrument) conforms to the JTG 3432-2024 standard. It is used to determine the performance of crushed stone or gravel that undergoes multiple cycles of soaking in saturated sodium sulfate solution and drying, and withstands the crystallization pressure of sodium sulfate without significant damage or reduction in strength. This is a method for determining the soundness (also known as stability) of aggregates.
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