go to jove.com

HIGH SCHOOL

Engineering

Concept Videos

Civil Engineering

This is a free preview. For full access

Mixing, Placing and Curing Concrete

Concrete Mixer Types and Capacity

Description

Concrete mixing creates a uniform blend of cement, aggregates, and paste. The goal is to coat the aggregates evenly with cement paste. Mixers used for this job are usually grouped into two main types: batch mixers and continuous mixers.

Batch mixers handle one load at a time. They mix the materia...

Transcript

拌制混凝土的主要目的是搅拌其组分,确保骨料均匀地被水泥浆包裹,从而形成均匀的混合物。

通常,混凝土使用分批搅拌机或连续搅拌机进行混合。

批量搅拌机一次处理一个完整的批次,先将原料混合,然后在加入下一批次前排出混合物。批量搅拌机有四种类型:倾动式滚筒搅拌机、非倾动式滚筒搅拌机、盘式搅拌机和双滚筒搅拌机。

倾斜式滚筒搅拌机通过内部叶片搅拌混凝土,并通过倾斜滚筒来卸出混合料。相反,非倾斜式滚筒搅拌机则通过溜槽卸料,或通过反转滚筒旋转方向来排出混合料。

批量混合混凝土可通过桨叶式搅拌机在料盘中进行,也可通过双筒搅拌机在滚筒串联装置内经两步混合工艺完成。

连续式搅拌机可自动连续地接收原料,然后通过滚筒式搅拌器或固定外壳内移动的...