Stabilized soil applicable to intertidal zone sludge stable layer

A technology of solidifying soil and stabilizing layer, which is applied in the field of solidifying soil and can solve problems such as hindering the construction of infrastructure in coastal areas

Inactive Publication Date: 2014-02-05
JIANGSU NATURE WAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, with the waste of resources brought about by tailings sand resources and the increasing environmental pollution, the restrictions on the exploitation of natural resources such as natural river sand required in the construction of coastal tidal mud have seriously hindered the construction of infrastructure in coastal areas

Method used

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  • Stabilized soil applicable to intertidal zone sludge stable layer
  • Stabilized soil applicable to intertidal zone sludge stable layer
  • Stabilized soil applicable to intertidal zone sludge stable layer

Examples

Experimental program
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Effect test

Embodiment

[0013] In the following examples, the tailings sand is phosphorus tailings sand, the fineness modulus is 2.8, and the composite zone II is graded; cement: Conch Group P·042.5 cement; mineral powder: S95 grade, fly ash is third-grade ash; gypsum is half water gypsum. The test silt was taken from the tidal flat silt at a depth of 1.5 meters underground in Xuwei New District, Lianyungang. The basic parameters of the silt are shown in Table 1.

[0014]

Embodiment 1

[0016] Dry the tailings sand first, so that the water content is controlled below 5%. The effective calcium oxide content of slaked lime in the curing agent should be between 60-80%. Component A is based on mineral powder: cement: fly ash: lime: Gypsum=50%: 25%: 12%: 10%: 3% by weight is accurately prepared.

[0017] After mixing the components of curing agent A in the above proportions evenly, add 100kg and 300kg of component A to each cubic component of component B, and the mass ratios of tailings sand and silt of component B are 3:7 and 4 respectively. : 6, 5: 5, fully stirred evenly, according to the unconfined compressive strength test method (T0805-94) in the "Test Regulations for Highway Engineering Inorganic Binder Stable Materials" to prepare the solidified soil specimen and test the results. After static compaction molding, unloading, and demoulding to obtain the test piece, put it in a sealed humidity box and a constant temperature room for heat preservation, moistu...

Embodiment 2

[0021] Dry the tailings sand first, so that the water content is controlled below 5%. The effective calcium oxide content of slaked lime in the curing agent should be between 60-80%. Component A is based on mineral powder: cement: fly ash: lime: Gypsum = 30%: 40%: 10%: 15%: 5% by weight is accurately prepared.

[0022] After mixing the components of the curing agent A in the above ratio evenly, add 100kg and 300kg of component A to each cubic component of component B, and the mass ratios of tailings sand and silt of component B are 1:5 and 1 respectively. : 4, 1: 1, fully stirred evenly, according to the unconfined compressive strength test method (T0805-94) in the "Highway Engineering Inorganic Binder Stable Material Test Regulations" to prepare the solidified soil specimen and test the results. After static compaction molding, unloading, and demoulding to obtain the test piece, put it in a sealed humidity box and a constant temperature room for heat preservation, moisturizin...

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Abstract

The invention discloses stabilized soil applicable to an intertidal zone sludge stable layer. The stabilized soil comprises a component A and a component B, wherein the component A is a curing agent; the component B is a mixture of tailing sand and sludge; the component A comprises the following components in percent by weight: 30%-50% of mineral powder, 20%-40% of cement, 10%-12% of coal ashes, 10%-15% of lime and 3%-5% of gypsum; and a mass ratio of the tailing sand to the sludge in the component B is (0.2-1):1. According to the composition of the stabilized soil, 50kg-500kg of the component A is uniformly doped in per cubic meter of the component B. The stabilized soil disclosed by the invention is simple, scientific and reasonable in composition; most of material components are industrial solid waste tailing sand, as well as slag, coal ash, and the like, so that the national environmental protection policy is satisfied, and therefore, wastes are treated with processes of wastes against one another and the stabilized soil of the stable layer is high in compressive strength and excellent in water stability.

Description

technical field [0001] The invention relates to a solidified soil used for solidifying a stable layer of tidal flat silt, in particular to a solidified soil suitable for a stable layer of tidal flat silt. Background technique [0002] Over the past 60 years since the founding of New China, brilliant achievements have been made in mineral exploration, and a large number of mineral resources have been discovered for the country, basically ensuring the needs of national economic construction. my country has become one of the few resource-rich countries in the world with abundant mineral resources and a relatively complete range of minerals. At the same time, my country's mineral development and utilization have also achieved remarkable results. It has now become one of the world's largest mining countries. The total annual ore output in the country is 5 billion tons, of which 150 types of minerals are developed and utilized by state-owned production mines, and the annual ore ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12
Inventor 钟天雪汪潇倪志才刘玉华
Owner JIANGSU NATURE WAY TECH
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