Cement stabilizing soil based on regenerated concrete aggregates in different quality grades

A technology of cement stabilized soil and quality grade, applied in the field of cement stabilized soil, can solve the problems of occupying land, surrounding environmental pollution, waste of resources, etc., and achieve the effects of being beneficial to agricultural production and environmental protection, reducing construction costs, and improving living conditions.

Inactive Publication Date: 2014-07-23
王欣 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A large number of buildings are demolished every year in our country, resulting in more and more construction waste. However, the traditional method of construction waste is to be transported to the outskirts for open storage and landfill. This method not only occupies a large amount of land, but also causes damage to the surrounding environment. Pollution, but also because of the use of new materials, stone mining, waste of resources, resulting in soil erosion

Method used

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  • Cement stabilizing soil based on regenerated concrete aggregates in different quality grades
  • Cement stabilizing soil based on regenerated concrete aggregates in different quality grades
  • Cement stabilizing soil based on regenerated concrete aggregates in different quality grades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: The mixing ratio is: 90% of recycled grade I aggregate: 4% of cement: 6% of fly ash.

[0041] Table 5.1 The first set of compaction test data

[0042] Moisture contentω%

3.1

4.1

5.1

6.0

6.9

Dry density ρg / cm 3

2.07

2.12

2.17

2.10

2.06

[0043] Conclusion: drawn by compaction curve (see the attached figure for details) figure 1 ) can get the optimal water content ω of the first group 0 =5.2%, the corresponding maximum dry density ρ dmax =2.17.

[0044] Table 5.2 Unconfined Compressive Strength Test Record Form of Cement Stabilized Soil

[0045]

Embodiment 2

[0046] Example 2: The mixing ratio is: 88% of recycled grade II aggregate: 5% of cement: 7% of fly ash.

[0047] Table 6.1 The second set of compaction test data

[0048] Moisture contentω%

3.5

4.5

5.5

6.5

7.5

Dry density ρg / cm 3

2.11

2.17

2.23

2.17

2.11

[0049] Conclusion: drawn by compaction curve (see the attached figure for details) figure 2 ) can get the optimal water content of the second group ω 0 =5.4%, the corresponding maximum dry density is ρ dmax =2.23.

[0050] Table 6.2 Unconfined compressive strength test record table of the second group of cement-stabilized soil

[0051]

Embodiment 3

[0052] Example 3: The mixing ratio is: 85% of recycled grade II aggregate: 6% of cement: 9% of fly ash.

[0053] Table 7.1 The third group of compaction test data

[0054] Moisture contentω%

4.0

4.9

5.7

6.9

7.8

Dry density ρg / cm3

2.01

2.09

2.19

2.1

2.03

[0055] Conclusion: drawn by compaction curve (see the attached figure for details) image 3 ) can get the optimum water content ω of the third group 0 =6.0%, the corresponding maximum dry density ρ dmax =2.19.

[0056] Table 7.2 Unconfined compressive strength test record table of the third group of cement-stabilized soil

[0057]

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Abstract

The invention belongs to the technical field of cement stabilizing soil, and especially relates to a cement stabilizing soil based on regenerated concrete aggregates in different quality grades. The cement stabilizing soil is composed of the following components in percentages by weight: 85% to 90% of regenerated concrete aggregates, 4% to 6% of cement, 5% to 10% of fly ash, and additive; wherein the weight of additive accounts for 4% to 6% of the total weight of the cement and the fly ash. The regenerated aggregates in different quality grades are used to replace the original aggregates in the cement stabilizing soil base layer construction, thus the regeneration utilization technology is used to save a lot amount of investment and resources for national economy, the wastes generated in the maintenance or reconstruction of road construction can be fully reutilized, and a basic layer material is developed. The protection for nature and ecological balance is benefited, a good survival condition is created for human beings, the agricultural production and environmental protection are assisted, and the construction cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of cement-stabilized soil, in particular to a cement-stabilized soil based on recycled concrete aggregates of different quality grades. Background technique [0002] A large number of buildings are demolished every year in our country, resulting in more and more construction waste. However, the traditional method of construction waste is to be transported to the outskirts for open storage and landfill. This method not only occupies a large amount of land, but also causes damage to the surrounding environment. Pollution is also caused by the use of new materials, stone mining, waste of resources, and soil erosion. Recycled cement stabilized soil base technology is to reuse construction waste materials after crushing, and according to the structural characteristics of the regenerated structural layer, add some new aggregate or fine aggregate appropriately, and add appropriate amount of water and admixture in p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/08C04B18/16
CPCY02W30/91
Inventor 王欣吴书安仝小芳郑娟王兵邵红才
Owner 王欣
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