Concrete mixture workability informatization intelligent regulation and control method

Abstract

The invention relates to a concrete mixture workability informatization intelligent regulation and control method, belongs to the technical field of concrete, and is used for realizing intelligent, accurate and automatic compensation and repair of the workability of the concrete mixture. The method comprises the following steps: firstly, preparing concrete mixtures with different strength grades under the same proportion condition corresponding to engineering practice, and detecting the initial slump of the concrete mixtures; secondly, putting the mixtures into a sealed barrel, and standing for a period of elapsed time; then, uniformly stirring the concrete mixture in the sealing barrel again when the time is up, adjusting the back mixing amount of the admixture, and respectively recording the time slump and the elapsed time loss value; then, according to big data of admixture back-mixing amounts required by time loss of different slumps, performing fitting to obtain an intelligent workability regulation and control equation of the concrete mixtures with different strength grades; and finally, on the basis of the intelligent regulation and control equation, actually measuring a concrete slump value according to an engineering field, and calculating the actually required admixture back-doping compensation amount in real time.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to an information-based intelligent control method for the workability of concrete mixtures. Background technique [0002] After the concrete mixture leaves the factory, due to the influence of transportation time, waiting time, cement hydration, water evaporation and other factors, it will cause different degrees of fluidity loss over time, reduce the slump expansion index of the concrete, and cause the concrete to mix before entering the pump. The workability of the compound is difficult to meet the construction needs. [0003] At this stage, the actual project often adopts the measure of adding water twice. This artificial operation is basically carried out based on personal experience or even personal preference. This will not only enlarge the concrete water-binder ratio, but also change the design of the concrete mix ratio, resulting in concrete segregation, bleeding, and then...

AI Technical Summary

Problems solved by technology

[0002] After the concrete mixture leaves the factory, due to the influence of transportation time, waiting time, cement hydration, water evaporation and other factors, it will cause different degrees of fluidity loss over time, reduce the slump expansion index of the concrete, and cause the concrete to mix before entering the pump. The workability of the compound is difficult to meet the construction needs

[0003] At this stage, the actual project often adopts the measure of adding water twice. This artificial operation is basically carried out based on personal experience or even personal preference. This will not only enlarge the concrete water-binder ratio, but also change the design of the concrete mix ratio, resulting in concrete segregation, bleeding, and then blockage. Pipe bursts and other engineering accidents will reduce the mechanical strength of concrete to varying degrees and cause hidden dangers in concrete quality

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