Talk:Concrete plant

Dear please tell me about the mixing of water at site when the slump of concrete gets hard in the concrete mixer in the case if retarder is added in it and the travelling distance is 2 hours...what are the draw backs involved.explain in details.

I think when we introduce the 'Concrete Plant', we should introduce the definition first, then we need to intrudoce it's classification and composition, and the application. Now we need Better introduction — Preceding unsigned comment added by 长城建机编辑处 (talk • contribs) 10:23, 27 September 2019 (UTC)