Method for rapidly detecting residual quantity of flocculating agent in sand for concrete

Abstract

The invention discloses a method for rapidly detecting the residual quantity of a flocculating agent in sand for concrete, which comprises the steps of firstly, mixing to-be-detected flocculating agents with different concentrations into the concrete to obtain an influence rule of the to-be-detected flocculating agents on the working performance of the concrete, and determining a qualified mixing amount standard of the to-be-detected flocculating agents; and rapidly determining whether the concentration range of the residual flocculating agent in the sand exceeds the qualified mixing amount standard of the flocculating agent to be detected or not by utilizing a flocculating agent rapid detection method. The method has the advantages that whether the content of the flocculating agent in the sand for concrete is excessive or not can be rapidly judged, the method plays a guiding role in using residual sand with the flocculating agent in a mixing plant, suggestions for reasonably using the flocculating agent are provided for a sand and stone production enterprise, rapid detection, scientific use and fine control are achieved, and the influence on the concrete performance is reduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for detecting the residual amount of flocculant in concrete sand. Background technique [0002] The mechanism of the flocculant is mainly that the groups with positive (negative) charges and some particles or particles with negative (positive) charges in the water that are difficult to separate are close to each other, reducing their potential, making them in an unstable state, and Using its polymeric properties, these particles are concentrated and separated by physical or chemical methods. [0003] In recent years, with the vigorous development of the construction industry, sand and gravel are in short supply, and the quality is getting worse and worse. All kinds of mountain sand and machine sand with high mud content have to be used as a last resort. Since January 2018, a number of environmental laws and environmental protection programs have been implemen...

AI Technical Summary

Problems solved by technology

In order to achieve the best effect, the sand and gravel production enterprises use a high amount of flocculant, and the residual flocculant amount in the factory sand is very high, which will have an adverse effect on the performance of the concrete mixture.

[0004] For the concrete industry, the demand for machine-made sand is large and the source is complicated, but the current flocculant detection method cannot achieve the purpose of rapid and effective detection, and it is impossible to judge how much impact the residual flocculant in the sand will have on the performance of concrete

A small amount of flocculant is beneficial to improve the working performance of concrete, but excessive flocculant will seriously affect the working performance of concrete

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