CN107064413A - The detection method of Water glass content in a kind of waterglass conditioned soil - Google Patents
The detection method of Water glass content in a kind of waterglass conditioned soil Download PDFInfo
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- CN107064413A CN107064413A CN201710196468.6A CN201710196468A CN107064413A CN 107064413 A CN107064413 A CN 107064413A CN 201710196468 A CN201710196468 A CN 201710196468A CN 107064413 A CN107064413 A CN 107064413A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
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Abstract
The invention discloses a kind of detection method of Water glass content in waterglass conditioned soil, including：The standard specimen of different Water glass contents is titrated respectively, hydrochloric acid standard solution consumption during each standard specimen different larval instar is obtained；By each Water glass content in each age when hydrochloric acid standard solution consumption fitting generation standard curve；The conditioned soil detection sample water mixing glass time is obtained, the water mixing glass time to Water glass content detection time interval of detection sample is calculated；To detection sample titration, hydrochloric acid standard solution actual consumption amount is obtained；Contrasted according to the hydrochloric acid standard solution actual consumption amount of the time interval and test point sample to standard curve, it is determined that detection sample hydrochloric acid standard solution actual consumption amount is in two curve ranges of standard curve and calculates the Water glass content for obtaining detection sample.The present invention can effectively detect the Water glass content in waterglass conditioned soil in different larval instar, actual conditions be simulated to the full extent so that institute's invention detection method is accurate and effective.
Description
Technical field
The present invention relates to a kind of detection method of Water glass content in waterglass conditioned soil, belong to what chemistry was analyzed with ground
Technical field.
Background technology
The evaluation method of current two fluid grouting effect, as probing takes ground core sample to carry out strength test, in-situ test
And load test or using geophysical prospecting method and means of change in physical etc. before and after rock-soil layer slip casting is detected, generally note
Other detection Indirect evaluations after slurry, it is impossible to which whether detection grouting amount reaches requirement in real time during slip casting；In addition, waterglass changes
Good soil also gradually starts application as filler in engineering.
Although waterglass has obtained relatively broad application in two fluid grouting and soil improvement, do not have system so far
Two fluid grouting in or waterglass conditioned soil in Water glass content detection correlation technique, it is impossible to simulate actual feelings to the full extent
Condition so that existing detection method has limitation in the Water glass content context of detection of conditioned soil soil sample.
Therefore the object of the invention is the assay method according to silica (SiO2) content in industrial metasilicate, explores water outlet glass
In glass conditioned soil or two fluid grouting reclaimed water glass content detection method.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art that there is provided in a kind of waterglass conditioned soil
Or in two fluid grouting Water glass content detection method, solution there is currently no in two fluid grouting or waterglass conditioned soil reclaimed water glass
The detection correlation technique of glass volume, or existing method can not simulating actual conditions to the full extent, in the water glass of conditioned soil soil sample
The problem of there is limitation in glass volume context of detection.
It is of the invention specific using following technical scheme solution above-mentioned technical problem：
The detection method of Water glass content, comprises the following steps in a kind of waterglass conditioned soil or in two fluid grouting：
Titrated respectively using the titration method of waterglass to possessing the standard specimen of different Water glass contents, obtain each standard
Hydrochloric acid standard solution consumption during sample different larval instar；
Hydrochloric acid standard solution consumption of each Water glass content in each age is fitted and standard curve is generated；
The detection sample water mixing glass time of conditioned soil is obtained, the water mixing glass time for calculating detection sample mixes to waterglass
Measure detection time interval；
Using the titration method of waterglass to detection sample titration, the hydrochloric acid standard solution actual consumption of detection sample is obtained
Amount；
Contrasted according to the hydrochloric acid standard solution actual consumption amount of the time interval and test point sample to standard curve, really
Regular inspection test specimens hydrochloric acid standard solution actual consumption amount when titrating the corresponding time is in curve ranges and the calculating of standard curve
Obtain the Water glass content of detection sample.
Further, as a preferred technical solution of the present invention：Calculated in methods described and obtain conditioned soil detection examination
The Water glass content p of sampleChangeUsing formula：
Wherein, pChangeRepresent that conditioned soil detects the Water glass content of sample；p1Curve ranges inner salt acidity scale determined by representing
Water glass content of the quasi- solution consumption amount higher than standard specimen corresponding to the hydrochloric acid standard solution actual consumption amount of detection sample；p2
Normal hydrochloric acid solution consumption amount is less than detection sample hydrochloric acid standard solution actual consumption amount institute in curve ranges determined by representing
The Water glass content of correspondence standard specimen；V1It is actual higher than detection sample hydrochloric acid standard solution in curve ranges determined by representing
The hydrochloric acid standard solution consumption of the standard specimen of consumption；V2Less than detection sample hydrochloric acid in curve ranges determined by representing
The hydrochloric acid standard solution consumption of the standard specimen of standard liquid actual consumption amount；V changes the hydrochloric acid for representing that conditioned soil detects sample
Standard liquid actual consumption amount.
Further, as a preferred technical solution of the present invention：The titration method of the waterglass is included using dense
Spend the hydrochloric acid standard solution titration for 0.125mol/L.
Further, as a preferred technical solution of the present invention：The titration method of the waterglass includes using first
The red solution of base is used as indicator.
Further, as a preferred technical solution of the present invention：The titration method of the waterglass is included to standard
Sample adds extraction of the concentration for 10% ammonium chloride solution progress sample titrating solution.
The present invention uses above-mentioned technical proposal, can produce following technique effect：
The detection method of Water glass content in waterglass conditioned soil proposed by the invention, by carrying out burette test, from
And obtain normal hydrochloric acid liquid consumption of the different Water glass content standard specimens in different larval instar.By different water during different larval instar
The result of the test of the normal hydrochloric acid liquid consumption of glass volume sample is plotted in the seat of Water glass content and the quasi- liquid consumption of hydrochloric acid
On marking on a map.Data are fitted with the changing rule for obtaining hydrochloric acid standard solution consumption with age.Thus law curve can be obtained
To each Water glass content in each age hydrochloric acid standard solution consumption, it is hereby achieved that considering that the standard of age change is bent
Line.When can detect certain age using the curve in waterglass conditioned soil waterglass volume.
The invention has the advantages that conserving sample under the conditions of the compactness required in engineering, hydrochloric acid is used after reaching certain age
Standard liquid carries out the titration of sample extract, and actual conditions are simulated to the full extent so that institute's invention detection method is accurate,
Effectively.Obtained with the relation curve of hydrochloric acid standard solution consumption and age during certain age the Water glass content of hydrochloric titration with
The relation curve of the hydrochloric acid standard solution milliliter number of compound consumption, detects that waterglass changes during identical age with this standard curve
The Water glass content of good soil sample.
Therefore, the present invention is bent by the relation for studying waterglass conditioned soil hydrochloric acid standard solution consumption in different larval instar
Line, has filled up the blank determined in engineering to Water glass content, has more overcome the limitation of conventional titration method age effect in engineering；
It can coordinate simultaneously in the two fluid grouting engineering such as waterglass-lime with EDTA titrations and determine water respectively in waterglass-cement
The volume of mud/lime, waterglass.When the present invention can effectively detect different larval instar in waterglass conditioned soil or in two fluid grouting
Water glass content, waterglass consumption during to detect and control two fluid grouting and waterglass soil mass consolidation provides a kind of effective
Method, the present invention has the advantages that principle is simple, testing cost is low, detection speed is quick and accuracy of detection is higher.Can be in inspection
Survey Water glass content field popularization and application in two fluid grouting and waterglass conditioned soil and the engineering of other application waterglass.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the detection method of Water glass content in waterglass conditioned soil of the present invention.
Fig. 2 is the standard curve that generates in the inventive method.
Embodiment
Embodiments of the present invention are described with reference to Figure of description.
As shown in figure 1, the invention provides the detection side of Water glass content in kind of waterglass conditioned soil or in two fluid grouting
Method, this method specifically includes following steps：
Reagent required in step 1, the titration method of selection waterglass, it is preferably included：Concentration is 0.125mol/
L hydrochloric acid standard solution；95% ethanol solution prepares 0.1% methyl red solution；Concentration is 10% ammonium chloride solution；But this hair
Bright scheme is not limited to the concentration.
Step 2, titrated using the titration method of waterglass, obtained respectively to possessing the standard specimen of different Water glass contents
Hydrochloric acid standard solution consumption during each standard specimen different larval instar；It is molten to normal hydrochloric acid of each Water glass content in each age
Liquid consumption carries out data fitting and generates standard curve, and detailed process is as follows：
Step 21, at the scene soil sampling, are mixed thoroughly after rejecting stone, and it is ω o that soil sample air-dry is extremely arrived to moisture contentp- 2%~ω
opIn the range of when measure moisture content, and soil sample is divided into several pieces, every part of quality 2kg is used as that to make standard specimen native.
Step 22, to fill into soil sample volume respectively be 1%, 3%, 5% ... (during volume is 1% expression 100g dry ground
Mix the water glass solution used in 1g) etc. waterglass, the Water glass content of the wherein maximum standard specimen of Water glass content is suitable
Maximum Water glass content than test specimens to be checked is high by 4%；Because water glass solution can be precipitated when standing, cause in container
The concentration of top and the bottom solution is different, therefore water glass solution should stir before incorporation.Will after waterglass is added in soil sample
Soil is mixed thoroughly, crushed, and soil block the largest particles is less than 2mm, test specimen then is made according to design compactness, and test specimen is embedded to identical
Conserved in the conditioned soil of Water glass content, test specimen is standard specimen.
Step 23, incorporation waterglass after 1 hour, 3 hours, 7 hours, 24 hours, 5 days, 7 days, 14 days, 28 days, 56
It and 90 days, take out aliquot and cross 2mm sieves respectively from every part of standard specimen, take the lower soil sample 100g of sieve to move into triangular flask,
Plus 200 milliliter of 10% chloride leach solution, firmly shake 3 minutes, can be added deduct 5 times with 120 times per minute, place precipitation 4
Minute, increase standing time according to actual conditions and record this time, the experiment of the native compound of all this kind of waterglass is equal later
It is defined by this time.
Step 24, it is put into 300mL triangular flasks with pipette, extract upper strata suspension 50mL, can is 1 to 2cm under liquid level
Suspension, add 10 drip methyl red indicators.Record the volume V of hydrochloric acid standard solution in buret1, use hydrochloric acid standard solution
It is titrated to solution and blush as terminal is changed into from yellow, does not stop normal hydrochloric acid in concussion, record buret while titration
The volume V of solution2, calculate V1-V2The as consumption of hydrochloric acid standard solution.
The hydrochloric acid standard solution consumption of step 25, each Water glass content in each age carries out data fitting and generates mark
Directrix curve, i.e., by abscissa of the time, hydrochloric acid standard solution consumption be ordinate generation standard curve as shown in Fig. 2 its not
It can be represented with time and different hydrochloric acid standard solution consumptions, the Water glass content of various concentrations with homologous thread, in Fig. 2 respectively
It is given at the curve that hydrochloric acid standard solution consumption is changed over time under the Water glass content of 0%, 1%, 3%, 5% ratio.
Also, when carrying out the detection of two fluid grouting work progress reclaimed water glass content, incorporation should be designed volume by standard curve
Soil sample after calcium hydroxide/cement is used as blank titration.And standard is tried during the detection of two fluid grouting work progress reclaimed water glass content
Sample prepare when should first mix design volume calcium hydroxide/cement mixing it is uniform after mix waterglass again.
Step 3, the Water glass content to conditioned soil are detected, obtain the Water glass content of conditioned soil.Detailed process is as follows：
Step 31, the conditioned soil sampling detected in needs, are collected the detection sample water mixing glass time, during calculating water mixing glass
Between arrive Water glass content detection time interval.
Step 32, sample crushed, cross 2mm sieves, take the lower soil sample 100g of sieve to move into triangular flask, plus 200 milliliter of 10% chlorine
Change ammonium salt solution dissolving, firmly shake 3 minutes, can add deduct 5 times for 120 times per minute, place precipitation, its sedimentation time can be with
It is identical with making standard curve.
Step 33, the titration method progress hydrochloric acid standard solution consumption titration according to the standard curve of above-mentioned steps 2, i.e., it is sharp
Detection sample is titrated with the titration method of waterglass, the hydrochloric acid standard solution actual consumption amount of detection sample is obtained.
The hydrochloric acid standard solution actual consumption amount pair of step 34, the time interval according to step 31 and test point sample
Than to standard curve, it is determined that detection sample hydrochloric acid standard solution actual consumption amount when titrating the corresponding time is in standard curve
Curve ranges, you can to determine that conditioned soil detects which sample hydrochloric acid standard solution actual consumption amount when titrating the corresponding time is located at
Between two standard curves, the Water glass content for obtaining detection sample is then calculated.
Wherein, calculate and obtain the Water glass content p that conditioned soil detects sampleChangeUsing formula：
In formula, pChangeRepresent that conditioned soil detects the Water glass content of sample；p1Hydrochloric acid in curve ranges determined by representing
Water glass content of the standard liquid consumption higher than standard specimen corresponding to the hydrochloric acid standard solution actual consumption amount of detection sample；
p2Normal hydrochloric acid solution consumption amount is less than detection sample hydrochloric acid standard solution actual consumption amount in curve ranges determined by representing
The Water glass content of corresponding standard specimen；V1It is real higher than detection sample hydrochloric acid standard solution in curve ranges determined by representing
The hydrochloric acid standard solution consumption of the standard specimen of border consumption；V2Less than detection sample salt in curve ranges determined by representing
The hydrochloric acid standard solution consumption of the standard specimen of sour standard liquid actual consumption amount；VChangeRepresent that conditioned soil detects the hydrochloric acid of sample
Standard liquid actual consumption amount.
Therefore, sample is conserved under the conditions of the compactness that the present invention can be required in engineering, salt is used after reaching certain age
Acid carries out the titration of sample extract, actual conditions is simulated to the full extent so that institute's invention detection method is accurate and effective.
Obtained with the relation curve of hydrochloric acid standard solution consumption and age during certain age the Water glass content of hydrochloric titration with it is mixed
The relation curve of the hydrochloric acid standard solution milliliter number of material consumption is closed, detects that waterglass is improved during identical age with this standard curve
The Water glass content of soil sample.
To sum up, invention is by studying soil body hydrochloric acid standard solution in different larval instar after waterglass conditioned soil or two fluid grouting
The relation curve of consumption, has filled up the blank determined in engineering to Water glass content, has more overcome conventional titration method in engineering
The limitation of age effect；Simultaneously can be in waterglass-cement, with EDTA titrations in the two fluid grouting engineering such as waterglass-lime
Coordinate and determine cement/lime, the volume of waterglass respectively.When the present invention can effectively detect different larval instar in waterglass conditioned soil
Or after two fluid grouting the soil body Water glass content, waterglass during to detect and control two fluid grouting and waterglass soil mass consolidation
Consumption provide a kind of effective ways, the present invention have principle is simple, testing cost is low, detection speed is quick and accuracy of detection compared with
High the advantages of.Can detection two fluid grouting and waterglass conditioned soil and the engineering of other application waterglass in Water glass content
Field popularization and application.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess
Make a variety of changes.
Claims (5)
1. the detection method of Water glass content in a kind of waterglass conditioned soil, it is characterised in that comprise the following steps：
Titrated respectively using the titration method of waterglass to possessing the standard specimen of different Water glass contents, obtain each standard specimen
Hydrochloric acid standard solution consumption during different larval instar；
The hydrochloric acid standard solution consumption of the standard specimen of each Water glass content in each age is fitted and standard is generated
Curve；
The detection sample water mixing glass time of conditioned soil is obtained, the water mixing glass time for calculating detection sample is examined to Water glass content
Survey time interval；
Using the titration method of waterglass to detection sample titration, the hydrochloric acid standard solution actual consumption amount of detection sample is obtained；
Contrasted according to the hydrochloric acid standard solution actual consumption amount of the time interval and detection sample to standard curve, it is determined that detection
Sample hydrochloric acid standard solution actual consumption amount when titrating the corresponding time is in the curve ranges of standard curve and calculated and examined
The Water glass content of test specimens.
2. according to claim 1 in waterglass conditioned soil Water glass content detection method, it is characterised in that：Methods described
Middle calculate obtains the Water glass content p that conditioned soil detects sampleChangeUsing formula：
Wherein, pChangeRepresent that conditioned soil detects the Water glass content of sample；p1Hydrochloric acid standard solution in curve ranges determined by representing
Water glass content of the consumption higher than standard specimen corresponding to the hydrochloric acid standard solution actual consumption amount of detection sample；p2Represent institute
Normal hydrochloric acid solution consumption amount is corresponding less than detection sample hydrochloric acid standard solution actual consumption amount in the curve ranges of determination marks
The Water glass content of quasi- sample；V1Higher than detection sample hydrochloric acid standard solution actual consumption amount in curve ranges determined by representing
Standard specimen hydrochloric acid standard solution consumption；V2It is molten less than detection sample normal hydrochloric acid in curve ranges determined by representing
The hydrochloric acid standard solution consumption of the standard specimen of liquid actual consumption amount；VChangeRepresent that conditioned soil detects the hydrochloric acid standard solution of sample
Actual consumption amount.
3. according to claim 1 in waterglass conditioned soil Water glass content detection method, it is characterised in that：The water glass
The titration method of glass includes using concentration to titrate for 0.125mol/L hydrochloric acid standard solution.
4. according to claim 1 in waterglass conditioned soil Water glass content detection method, it is characterised in that：The water glass
The titration method of glass includes being used as indicator using methyl red solution.
5. according to claim 1 in waterglass conditioned soil Water glass content detection method, it is characterised in that：The water glass
The titration method of glass includes adding extraction of the concentration for 10% ammonium chloride solution progress sample titrating solution to standard specimen.
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| CN201710196468.6A CN107064413B (en) | 2017-03-29 | 2017-03-29 | The detection method of Water glass content in a kind of waterglass conditioned soil |
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| CN201710196468.6A CN107064413B (en) | 2017-03-29 | 2017-03-29 | The detection method of Water glass content in a kind of waterglass conditioned soil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112415130A (en) * | 2020-11-03 | 2021-02-26 | 淮阴工学院 | Method for measuring and calculating effective CaO and caustic sludge contents of lime-caustic sludge improved soil |
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| CN104048985A (en) * | 2014-06-06 | 2014-09-17 | 西安公路研究院 | Method for determining mixing amount of modifying agent in SBS modified asphalt |
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2017
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104048985A (en) * | 2014-06-06 | 2014-09-17 | 西安公路研究院 | Method for determining mixing amount of modifying agent in SBS modified asphalt |
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| 周丽筠等: "" 比色法测水玻璃中的二氧化硅"", 《广西化工技术》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112415130A (en) * | 2020-11-03 | 2021-02-26 | 淮阴工学院 | Method for measuring and calculating effective CaO and caustic sludge contents of lime-caustic sludge improved soil |
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