Aggregate basic production status in the concrete structures
1. There is a large need volume, per cubic metre of concrete is about 1.5 Cubic metres of aggregates; the aggregate quality directly affects the quality of the concrete dam.
Coarse aggregate size is divided up as follows:
First grade 5 ~ 20 mm, Second grade 5 ~ 20, 20~40, 40~80 mm, Third grade 5 ~ 20, 20~40, 40~80 mm, Fourth grade 5 ~ 20, 20 ~ 40,40 ~ 80,80 ?120 (150) mm
2. The fine aggregate fineness modulus controlling, usually~ 2.4
Aggregate production line: aggregate processing and processing equipment
1, Aggregate crushing: Use gravel crushing machinery, equipment commonly used jaw, cone, impact crusher, and three. Liming’s latest high-performance equipment cone crusher is the best aggregate crusher for aggregate crushing.
2, Aggregate screening: For grading, need to screening capture the natural wool or mixture after crushing, screening has two hydraulic and mechanical sieving grading methods. Large-scale plant usually use the multi-purpose mechanical sieving, there are two kinds of eccentric screen: vibration and inertia.
3, Aggregate washing
4, Sand making: After the shunt sewage mortar use the grit box for the first time washing, then the material enter into the washing machine for further cleaning. Artificial sand usually used the rod mill for processing.
5, Aggregate processing plant: Massive aggregate processing plants, often processing machinery and equipments according to process (crushing, screening, washing, transport and stacking) arranged the aggregate processing plant. Among them, plant-based screening operations, said screening floor.