BKJ-3A Coarse grained Soil Electric Compaction Instrument Introduction: Use standard compaction method to determine the relationship between the moisture content and density of coarse-grained soil, in order to determine its optimal moisture content and corresponding maximum dry density. The soil sample should be coarse-grained soil with a maximum particle size of no more than 60mm and containing clayey soil that cannot be freely drained. The instrument complies with the requirements of SL237-1999 "Soil Test Code" issued by the Ministry of Water Resources and Electric Power of the People's Republic of China, DL/T5356-2006 "Coarse grained Soil Test Code for Water Resources and Hydropower Engineering" issued by the National Development and Reform Commission of the People's Republic of China, and GB/T15406-2007 "Basic Parameters and General Technical Conditions for Geotechnical Engineering Instruments". Widely used in experimental and testing projects such as water conservancy engineering, dams, highways, railways, airports, teaching, and scientific research. characteristic: 1. Digital self-control, long-lasting use; 2. The drop height of the hammer can be adjusted arbitrarily; 3. Fully automatic control of compaction frequency; 4. It has automatic memory function. Track the position of the solid object, fully automatic control, able to maintain the set drop height unchanged; 5. It can be said that the function of the paving part is limited. The paving part is divided into the soil samples at the edge and center of the compaction cylinder. The bottom compaction cylinder can rotate a certain angle after each compaction of the sample by the compaction hammer to achieve hammering on the edge. After a certain number of hammering times (the number of hammering times the edge sample is compacted), the compaction hammer moves horizontally to achieve hammering on the center of the sample. 6. Automatic detection and counting, automatic shutdown, and automatic cyclic operation. 7. The rotation angle of the compact can be adjusted arbitrarily. Technical parameters: Sample size: φ 300mm × 288mm; Hammer mass: (heavy) compaction hammer 35.2kg, (light) compaction hammer 15.5kg; Hammer: Hammer base diameter: φ150mm； Hammer drop height: (light) 500mm/(heavy) 600mm, drop height error: ≤ 1% soil; Unit volume function: (heavy) 2688.2 KJ/m ³, (light) 591.9 KJ/m ³; Unit area impulse: (heavy) 7KN S/㎡, (lightweight) 3KN S/㎡ Compaction tube Size: diameter 30cm x height 28.8cm, volume 20357cm ³; Number of soil layers: 3 layers; Number of hits per layer: 88 (heavy), 44 (light); Number of blows per layer: 1-999 times (adjustable), hammering frequency: 15 times/minute; Host size: length 1250mm x width 700mm x height 2300mm; Working power supply voltage: AC380V50HZ2Kw
Introduction: Use standard compaction method to determine the relationship between the moisture content and density of coarse-grained soil, in order to determine its optimal moisture content and corresponding maximum dry density. The soil sample should be coarse-grained soil with a maximum particle size of no more than 60mm and containing clayey soil that cannot be freely drained. The instrument complies with the requirements of SL237-1999 "Soil Test Code" issued by the Ministry of Water Resources and Electric Power of the People's Republic of China, DL/T5356-2006 "Coarse grained Soil Test Code for Water Resources and Hydropower Engineering" issued by the National Development and Reform Commission of the People's Republic of China, and GB/T15406-2007 "Basic Parameters and General Technical Conditions for Geotechnical Engineering Instruments". Widely used in experimental and testing projects such as water conservancy engineering, dams, highways, railways, airports, teaching, and scientific research.
