公开(公告)号：US5127740A

公开(公告)日：1992-07-07

申请号：US725028

申请日：1991-07-03

申请人： Richard D. DeBoer

发明人： Richard D. DeBoer

IPC分类号： B28C5/00 ,  B28C7/00

CPC分类号： B28C5/00 ,  B28C7/0053

摘要： A system and method for reclaiming unused portions of mixed concrete by adding a chemical agent to retard the hydration state of the concrete for up to several days. When the stored concrete is again desired for use, a chemical accelerating agent is added to the mixed concrete which returns the hydration state to normal, once again allowing the concrete to set. The concrete can then be poured at a construction site or alternatively, the stored concrete can be added to a new batch of newly mixed concrete before pouring.

摘要翻译： 一种用于通过添加化学试剂以将混凝土的水合状态延迟长达数天来回收混合混凝土的未使用部分的系统和方法。 当储存的混凝土再次需要使用时，将化学促进剂添加到混合混凝土中，使水合状态恢复正常，再次允许混凝土凝固。 然后可以将混凝土浇注在施工现场，或者，在浇筑之前，储存的混凝土可以添加到新批次的混合混凝土中。

公开(公告)号：US5695280A

公开(公告)日：1997-12-09

申请号：US508616

申请日：1995-07-28

申请人： Darrell J. Baker ,  James M. Clarke ,  Martin Ozinga, III ,  Richard D. DeBoer

发明人： Darrell J. Baker ,  James M. Clarke ,  Martin Ozinga, III ,  Richard D. DeBoer

IPC分类号： B28C7/00

CPC分类号： B28C7/0007

摘要： A concrete stabilization system which includes a number of subsystems to provide a complete reuse and reclaiming of all concrete which remains unused at the end of the production day, and also reclaims all constituents of washout concrete from a number of concrete mixer trucks following the washing out process. A tower is provided for vertical and tilting motion of a material handling bucket, and a stationary mixer for stabilizing concrete and constituent material for reuse with fresh concrete batches at the start of the next production day or up to four days later. The fully automated system includes a start sequence initiated by the operator of the truck, and the process is then fully automated by a process controller which may be monitored off-site. The method includes a number of loop cycles, such as truck discharge and washout cycles, a stationary mixer load cycle, a water scan cycle which determines if the reused wash water contains excessive solid constituents, which are stored in the stationary mixer at intervals, so that the slurry water can continue reuse as wash water. The stabilization loop continually and automatically monitors the hydration state of the concrete in the stationary mixer and a chemical additive for retarding the hydration of the concrete is added to maintain the fluidity and plasticity of the concrete. The concrete is always ready for use because the chemical additive, a sugar based derivative, only retards the setting of the concrete for a short period.

摘要翻译： 一种混凝土稳定系统，其包括多个子系统，以便在生产日期结束时提供所有混凝土的完全再利用和回收，并且还从多个混凝土搅拌车中清除混凝土的所有成分 处理。 提供了用于物料搬运斗的垂直和倾斜运动的塔架，以及用于稳定混凝土和构成材料的固定混合器，以便在下一个生产日开始或最多四天之后用新鲜混凝土批料重新使用。 完全自动化的系统包括由卡车的操作者启动的启动序列，然后该过程由可能在场外监控的过程控制器完全自动化。 该方法包括多个循环循环，例如卡车卸载和冲洗循环，静态混合器加载循环，水扫描循环，其确定重复使用的洗涤水是否含有过量的固体成分，其间隔地存储在静态混合器中，因此 泥浆水可以继续重复利用作为洗涤水。 稳定循环连续自动监测固定混合器中混凝土的水合状态，并加入用于延缓混凝土水化的化学添加剂，以保持混凝土的流动性和可塑性。 混凝土总是准备使用，因为化学添加剂，一种基于糖的衍生物，只能在短时间内延缓混凝土的凝固。