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Method for determining dosages of each of cement and lime in cement and lime stabilizing soil sample

A technology of lime-stabilized soil and a determination method, applied in the field of determination of cement and lime dosage in cement-lime-stabilized soil samples, can solve unfavorable construction quality, cannot truly reflect the actual ratio of stabilized materials on site, and cannot measure the actual cement and lime. Dosage and other issues to achieve the effect of improving work efficiency and work quality, facilitating timely and effective control, and accurate results

Active Publication Date: 2017-12-08
NO 4 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the method for determining the dosage of cement or lime in domestic highway engineering mainly adopts the method specified in JTG E51-2009 "Test Regulations for Inorganic Binder Stable Materials in Highway Engineering" T0809-2009, but for cement and lime comprehensive stable materials, this method can only measure the combined The actual dosage of cement and lime cannot be measured, and it cannot truly reflect the actual ratio of stable materials on site, which is not conducive to timely and effective control of construction quality

Method used

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Effect test

specific Embodiment 1

[0038] A kind of assay method of cement and lime dosage in cement-lime stabilized soil sample, concrete steps are:

[0039] (1) Preliminary preparation:

[0040] The design ratio of the cement-lime stabilized soil sample is: cement: lime: soil = 4:6:100. The compaction test of the cement-lime stabilized soil sample shows that the optimum water content is 17.6%;

[0041] (2) Sampling:

[0042] Take the cement, lime and soil for the construction site, dry the lime and soil with an oven, and set aside;

[0043] Get cement lime stabilized soil sample, standby; Wherein the quality that takes is as follows, cement lime stabilized soil sample is stable fine-grained soil, gets 300g;

[0044] (3) Mixture calculation:

[0045] Dry mixture quality=300 / (1+17.6%)=255.10 (g);

[0046] Dry soil quality=255.10 / (1+10%)=231.91 (g);

[0047] Amount of water added = 300-255.10 = 44.90 (g);

[0048] Wherein, the binder dosage refers to the total dosage of cement and lime added when the cemen...

specific Embodiment 2

[0064] A kind of assay method of cement and lime dosage in cement-lime stabilized soil sample, concrete steps are:

[0065] (1) Preliminary preparation:

[0066] The design ratio of the cement-lime stabilized soil sample is: cement: lime: soil = 6:4:100, and the compaction test on the cement-lime stabilized soil sample shows that the optimum water content is 16.3%;

[0067] (2) Sampling:

[0068] Take the cement, lime and soil for the construction site, dry the lime and soil with an oven, and set aside;

[0069] Get cement-lime stabilized soil sample, standby; Wherein the quality that takes by weighing is as follows, cement-lime stabilized soil sample is stable medium, coarse-grained soil, gets 1000g;

[0070] (3) Mixture calculation:

[0071] Dry mixture quality=1000 / (1+16.3%)=859.85 (g);

[0072] Dry soil quality=859.85 / (1+10%)=781.68 (g);

[0073] Amount of water added = 1000-859.85 = 140.15 (g);

[0074] Wherein, the binder dosage refers to the total dosage of cement...

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Abstract

The invention relates to a method for determining the dosage of each of cement and lime in a cement and lime stabilizing soil sample. The method comprises the following specific steps: performing previous preparation; sampling; performing mixture calculation; determining the consumption of an EDTA disodium standard solution titrated in the soil sample; performing secondary determination on the consumption of an EDTA disodium standard solution titrated in each of a cement sample and a lime sample; calculating dry material quality md; calculating cement content x and lime content y; calculating soil quality mt; calculating cement dosage a and lime dosage b. The method provided by the invention has the benefits that the method is simple, convenient and fast, results are more accurate, the working efficiency and the working quality can be further improved, the dosage of each of the cement and the lime in a cement and lime stabilizing material can be determined, the accurate proportion of the stabilizing material can be obtained, the consistency of construction proportion and design proportion is timely understood, and the timely and effective control on the construction quality is facilitated.

Description

technical field [0001] The invention relates to the field of measuring cement and lime dosage in comprehensive stabilizing materials, in particular to a method for measuring cement and lime dosage in cement-lime stabilized soil samples. Background technique [0002] The accurate determination of cement and lime dosage is of great guiding significance for the construction of highway engineering base. At present, the method for determining the dosage of cement or lime in domestic highway engineering mainly adopts the method specified in JTG E51-2009 "Test Regulations for Inorganic Binder Stable Materials in Highway Engineering" T0809-2009, but for cement and lime comprehensive stabilized materials, this method can only measure the combined The actual dosage of cement and lime cannot be measured, and the actual ratio of stable materials on site cannot be truly reflected, which is not conducive to timely and effective control of construction quality. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G01N33/42G01N5/00G01N21/78
CPCG01N5/00G01N21/78G01N33/42
Inventor 杜乃红叶其业王国青庞俭陈孔祥
Owner NO 4 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY
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