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In the construction of expressways, once an expressway project is approved, each contract section typically conducts a market survey for sand and gravel aggregates within its scope to secure aggregate supply. Ultimately, no more than two quarries are selected, with strict requirements for uniform specifications and color, good angularity, low flakiness and elongation, stable rock quality, consistent particle-size distribution, and reliable supply volumes.
The aggregate materials used for expressways are classified into four size ranges: 0–5 mm stone powder, 5–10 mm crushed stone, 10–20 mm crushed stone, and 20–25 mm crushed stone. Particular attention shall be paid to controlling the gradation, crushing value, bulk density and water absorption, flakiness index, and silt content of the crushed stone; specific requirements can be found in the “Construction Code for Pavement Base Courses” (JTJ034-2000).
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Complete Equipment Solutions for Highway Aggregate Production
Highway aggregate crushing and screening equipment is generally categorized into two types: stationary units, which are suited for sand-and-gravel yards established near mining resources along the highway corridor. Such production lines are typically large-scale, making them more appropriate for large-scale, high-standard construction projects; however, they have longer construction timelines and impose relatively stringent requirements on site selection and environmental protection. The other type is mobile equipment, designed for on-site processing of aggregates generated during tunneling or excavation operations—whether sourced locally or from dispersed mineral deposits and riverbeds. Thanks to their rapid deployment, lack of need for permanent infrastructure, and flexible, on-demand operation, mobile units better meet the needs of typical short-duration, multi-stage, long-distance construction projects.
Crushing equipment
Tracked Mobile Jaw Crusher Jaw Crusher Impact Crusher 5X Series Sand MakingMachine Single Cylinder Hydraulic Cone Crusher
Screening equipment
Feeding equipment
Selecting Ore-Washing Equipment
Integrated, mobile production line featuring a hydraulic control system for easy maintenance, branded components, and innovative design.
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Guangxi Nanke Heavy Industry Machinery Co., Ltd
Address: No.365, Liushi Road,New town Industrial Park,Liujiang District, Liuzhou City, Guangxi Province, China
Douyin
Kuaishou
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Guangxi Yuanhai Mining Group Co., Ltd.
Guangxi Nanke Heavy Industry Machinery Co., Ltd
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