Detection method of water glass content in water glass improved soil

A detection method and water glass technology are applied in chemical analysis by titration, material analysis by observing the effect on chemical indicators, and analysis by chemical reaction of materials, etc. Problems such as limitations in the detection of water glass content, to achieve the effect of overcoming age effects and accurate detection methods

Active Publication Date: 2017-08-18
HOHAI UNIV +1
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, to provide a method for detecting the amount of water glass in water glass-improved soil or in double-liquid grouting, and to solve the problems that do not exist in double-liquid grouting or water glass improvement. The methods related to the detection of water glass content in soil, or the existing methods cannot simulate the actual situation to the greatest extent, and there are limitations in the detection of water glass content in improved soil samples

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  • Detection method of water glass content in water glass improved soil
  • Detection method of water glass content in water glass improved soil
  • Detection method of water glass content in water glass improved soil

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Embodiment Construction

[0025] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0026] Such as figure 1 Shown, the invention provides the detection method of the water glass dosage in the water glass improved soil or double liquid grouting, the method specifically comprises the following steps:

[0027] Step 1, select the reagent needed in the titration method of water glass, it preferably comprises: concentration is the hydrochloric acid standard solution of 0.125mol / L; 95% ethanol solution prepares 0.1% methyl red solution; Concentration is 10% chloride ammonium solution; however, the protocols of the present invention are not limited to this concentration.

[0028] Step 2, utilize the titration method of water glass to titrate respectively the standard sample with different water glass dosages, obtain the hydrochloric acid standard solution consumption when each standard sample is different in age; The consumption of hydrochloric acid ...

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Abstract

The invention discloses a detection method of water glass content in water glass improved soil. The detection method comprises the steps of respectively titrating standard samples with different water glass contents, and acquiring hydrochloric acid standard solution consumption of each standard sample at different ages; fitting the hydrochloric acid standard solution consumption of each standard sample at each age to generate a standard curve; acquiring the time of doping water glass in an improved soil detection sample, and calculating an interval between the time of doping the water glass in the sample and water glass content detection time; titrating the detection sample, and acquiring hydrochloric acid standard solution actual consumption; comparing with the standard curve according to the time interval and the hydrochloric acid standard solution actual consumption of the detection sample, determining the hydrochloric acid standard solution actual consumption of the detection sample to be between two curve ranges of the standard curve, and calculating to acquire the water glass content of the detection sample. According to the detection method of the water glass content in the water glass improved soil provided by the invention, the water glass content in the water glass improved soil can be effectively detected at different ages, and the actual situation is simulated to the maximum extent, so that the detection method provided by the invention is accurate and effective.

Description

technical field [0001] The invention relates to a method for detecting the content of water glass in water glass-improved soil, and belongs to the technical field of chemistry and rock-soil analysis. Background technique [0002] At present, the evaluation methods of double-fluid grouting effect, such as drilling and taking rock-soil core samples for strength test, in-situ test and load test, or using geophysical methods and means to detect changes in physical properties of rock-soil layers before and after grouting, are generally used for grouting. Indirect evaluation of other tests after grouting cannot detect whether the grouting volume meets the requirements in real time during the grouting process; in addition, water glass-improved soil is gradually being used as filler in projects. [0003] Although water glass has been widely used in double-liquid grouting and soil improvement, there is no systematic method for detecting the content of water glass in double-liquid gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/16G01N21/78
Inventor 张文慧夏东姜冲杨再福黄珂白兰兰黄兰可许艳芝朱文旺张瑜
Owner HOHAI UNIV
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