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Earth cementation agent in use for roadway construction

A soil stabilizer and road construction technology, applied in the direction of soil protection, soil conditioning materials, applications, etc., can solve the problems of increased transportation workload and costs

Inactive Publication Date: 2008-11-19
徐尔昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of highway construction, another major disadvantage of using lime industrial waste to stabilize soil is that the original soil at the base must be dug out and transported away, and then replaced with the factory-mixed mixture, which will greatly increase the transportation cost. Effort and cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020]Dry fly ash and wet desulfurization gypsum are the main components, supplemented by quicklime, alum stone and other secondary components, and the soil curing agent is made into a dry powder state by weighing the proportion, forced stirring and mixing Product, its each component formula ratio is as follows, all by weight percentage:

[0021] Fly Ash 65%

[0022] Quicklime 25%

[0023] Desulfurized gypsum - dry basis 7%

[0024] Alum Stone 3%

Embodiment 2

[0026] Dry fly ash and wet desulfurization gypsum are used as the main components, supplemented by cement, plaster of paris and aluminum sulfate as secondary components, and the soil is made into dry powder state by weighing proportioning, forced stirring and mixing Curing agent product, its each component formula ratio is as follows, all by weight percentage:

[0027] Fly Ash 68%

[0028] Cement 20%

[0029] Desulfurized gypsum - dry basis 5%

[0030] Plaster of Paris 5%

[0031] Aluminum sulfate 2%

Embodiment 3

[0033] The main components are dry fly ash and wet desulfurization gypsum, supplemented by other components such as quicklime, cement, plaster of paris and alum stone, and made into dry powder by weighing proportion, forced stirring and mixing. Soil stabilizer products, the formula ratio of each component is as follows:

[0034] Fly Ash 60%

[0035] Quicklime 14%

[0036] Cement 10%

[0037] Desulfurized gypsum - dry basis 7%

[0038] Plaster of Paris 7%

[0039] Alum Stone 2%

[0040] The formula ratio of each component in each of the above embodiments is calculated by weight percentage, and the sum of the percentages of each component content should be 100%.

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Abstract

In the invention, two kinds of waste material dry dust discharging coal ash and desulfurize gyp produced by power plant burning sub-bituminous coal or lignitous coal are used as main composition, shell and or cement, calcined gypsum and aluminum sulfate or alunite are used as secondary composition, they are prepared to dry powder soil curing agent by weighing, matching, forced stirring and mixing. The soil can be concreted by mixing a proper quantity of curing agent into the soil and processes of stirring, compacting, soaking and maintaining.

Description

Technical field [0001] The invention relates to the technical field of road and building construction, in particular to a soil curing agent for road construction. Background technique [0002] As we all know, in road and building construction, the structure and quality of the foundation play a decisive role in the service life and bearing capacity of buildings such as roads and bridges on the ground. Forming. Soil is a product of natural weathering of rocks, and usually contains 20-70% kaolinite crystals with a particle size of 0.3-3 μm in the soil. Soil with high content of kaolinite has greater viscosity, and soil with low content of kaolinite has less viscosity, so the soil must be consolidated and treated with corresponding technologies before it can be used in road or building construction. The traditional method of consolidating soil is: mixing a certain amount of quicklime or slaked lime into the highly viscous soil, and preparing a consolidated soil with a certain ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/06C04B18/08C04B22/06C04B22/14C09K17/02E02D3/12
CPCY02W30/91
Inventor 徐尔昌余健源
Owner 徐尔昌
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