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Concrete mix proportion optimization method based on working performance and manufacturing cost

A technology of working performance and optimization method, which is applied in the field of concrete, can solve the problems of increased concrete cost and unfavorable control engineering cost, etc., and achieve the effect of reducing unit strength cost

Active Publication Date: 2021-12-31
CHINA RAILWAY 24TH BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of self-compacting concrete mix ratio design, the amount of cement will increase the fluidity of the mixture, but it will lead to an increase in the cost of concrete per unit volume, which is unfavorable for controlling the cost of the project

Method used

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  • Concrete mix proportion optimization method based on working performance and manufacturing cost
  • Concrete mix proportion optimization method based on working performance and manufacturing cost
  • Concrete mix proportion optimization method based on working performance and manufacturing cost

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Experimental program
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Embodiment

[0038] Embodiment: This embodiment relates to a concrete mix ratio optimization method based on work performance and cost, and the method includes the following steps:

[0039] 1. The quality of each component of concrete is used as the design variable, and the design variables should be as independent as possible from each other. In this example, the concrete is self-compacting concrete, and its components are water, water reducer, stone powder, coarse aggregate, sand, and cement, that is, the design variables are the mass x of water 1 , the mass of water reducing agent x 2 , the quality of stone powder x 3 , mass of coarse aggregate x 4 , the mass of sand x 5 , the mass of cement x 6 . Of course, depending on the concrete components, other components of concrete can also be selected as design variables.

[0040] 2. Determine the objective function with respect to the strength and cost of the concrete. The objective function mainly considers the two factors of concrete...

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Abstract

The invention discloses a concrete mix proportion optimization method based on working performance and manufacturing cost, and the method comprises the following steps: taking the mass of each component of concrete as a design variable, under the constraint condition that the working performance of the concrete meets the use requirement, determining an objective function about the strength and the cost of the concrete, and solving an optimal solution of the design variable through the objective function. The method has the advantages that compared with an existing method, the influence of multiple parameter variables in design can be considered at the same time, and the unit strength cost is reduced while the concrete performance is guaranteed; the method is not only suitable for self-compacting concrete, but also suitable for optimizing the mix proportion of common concrete and other special concrete.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete mixing ratio optimization method based on work performance and cost. Background technique [0002] Self-compacting concrete is a type of concrete that flows by its own gravity without vibratory compaction. In the process of self-compacting concrete mix design, the amount of cement will increase the fluidity of the mixture, but it will lead to an increase in the cost of concrete per unit volume, which is not good for controlling the project cost. [0003] In the concrete mix ratio, the cost of various constituent materials is significantly different, so it is necessary to optimize the amount of each material according to the performance requirements of the concrete. For example, adding some admixtures can reduce the amount of cement, and choosing a suitable aggregate gradation can also Reduce cement consumption. Realizing mix ratio design with minimum cost is crucial...

Claims

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Application Information

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IPC IPC(8): C04B28/02
CPCC04B28/02C04B2111/00198C04B14/04C04B14/06C04B2103/302
Inventor 张绳忠刘亚帅盛灿军杜显平黄瑞堂刘锋付炳科
Owner CHINA RAILWAY 24TH BUREAU GRP