UHPC industrial production stirring process

Abstract

The invention discloses an UHPC industrial production stirring process. The UHPC industrial production stirring process comprises the following steps that firstly, the components are mounted and debugged, raw materials are fed into a site, quality detection is carried out on the raw materials, and the raw materials are fed into storage bin stations after the raw materials are detected to be qualified; before stirring operation, temperature control is carried out on the storage bin stations of the raw materials; the raw materials are weighed and proportioned correspondingly, and then a stirring device is started; the raw materials are sequentially conveyed, dumped and discharged into the stirring device, the stirring state is observed, and the next disc of raw materials is weighed while stirring; and when the stirring state meets the requirement, discharging is carried out, and meanwhile, the next disc of the raw materials is put into the stirring device. According to the UHPC industrial production stirring process, the whole process is high in working continuity and high in automation degree; and continuous stirring can be carried out during production, so that continuous feeding is guaranteed, and the engineering project requirements that the single-time pouring volume is large and the pouring time is long can be met.

Description

technical field [0001] The invention relates to the production field of ultra-high performance concrete (abbreviated as UHPC), in particular to a UHPC industrial production mixing process. Background technique [0002] UHPC has been well applied in high-rise buildings, long-span bridges, ocean engineering, water conservancy engineering, nuclear power engineering and special structures. In bridge structures, UHPC has been widely used in main girder structures, main arches of arch bridges, waffle deck structures, bridge joints and reinforcement of old bridges. [0003] UHPC materials have many advantages and have been widely used all over the world. However, they are rarely used in my country and have not been widely used in bridge main projects. At present, there are mainly two domestic UHPC production processes. One is to modify the ordinary twin-shaft mixer to expand the single-disk mixing capacity and prolong the single-disc mixing time. The main raw materials in this met...

AI Technical Summary

Problems solved by technology

At present, there are mainly two domestic UHPC production processes. One is to modify the ordinary twin-shaft mixer to expand the single-disk mixing capacity and prolong the single-disc mixing time. The main raw materials in this method are manually weighed and fed, and the measurement accuracy It is poor and cannot be produced continuously; the other is to use an ordinary twin-shaft mixer and stir in two times. The aggregate, powder and additives are mixed into dry powder for the first time, and the dry powder is mixed with water for the second time. UHPC, the production process of this method is cumbersome and it is difficult to control the quality of the mixing material; neither of these two methods can continuously produce UHPC with stable quality for a long time, and it is difficult to meet the needs of projects with a large single pouring volume and a long pouring time. project requirements

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