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Sludge and sand curing agent

A technology of aeolian sand and curing agent, applied in other chemical processes, soil conditioning materials, chemical instruments and methods, etc., can solve problems such as loss of use value, secondary pollution, environmental impact, etc., to reduce curing costs, improve the environment, Easy and fast construction

Active Publication Date: 2009-07-08
DAQING OILFIELD CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the sludge has not been purified and detoxified, the sludge is transported outside, which not only affects the environment and causes secondary pollution, but also wastes resources and loses its use value.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1. The water content of the silt was measured to be 20%, and the weight ratio of silt: aeolian soil = 40:60. Spread silt and wind-blown sandy soil on the base layer in proportion, mix with road mixer, use 0.1 parts of polyiron, 50 parts of fly ash, 5 parts of calcium carbonate, and 35 parts of aluminum silicate after initial stabilization, shaping and rolling , 9.8 parts of phosphogypsum and 0.1 part of Yuanming powder are used to stack the curing agent on the road shoulder according to the ratio of curing agent: (silt + wind-blown sand) = 12:100, spread the curing agent on the initially stable roadbed, and level it , Pave the curing agent, mix twice with the road mixer, according to CJJ / T80-98 5.1.35.1.4 of the "Technical Regulations for Solidified Soil Pavement Base and Subbase" 98 standard measured compressive strength is 5.6Mpa.

Embodiment 2

[0010] Example 2. The water content of the silt was measured to be 30%, and the weight ratio of silt: aeolian soil = 40:60. Spread silt and wind-blown sand on the base layer in proportion, and mix with road mixer. After initial stabilization, shaping and rolling, use 15 parts of polyiron, 25 parts of fly ash, 25 parts of calcium carbonate, and 15 parts of aluminum silicate. The curing agent prepared with 20 parts of phosphogypsum is stacked on the road shoulder according to the ratio of curing agent: (silt + wind-blown sand) = 10:100, and 20 parts of sodium sulfate are added to spread the curing agent and sodium sulfate On the initially stable roadbed, level and spread the curing agent, mix twice with the road mixer, roll and form according to 5.1.3 and 5.1.4 of "CJJ / T80-98", and maintain for 7 days, according to CJJ / T80- 98 standard measured compressive strength is 5.1Mpa.

Embodiment 3

[0011] Example 3. The water content of the silt was measured to be 35%, and the weight ratio of silt: aeolian soil = 40:60. Spread silt and wind-blown sandy soil on the base layer in proportion, and mix them with a rotary tiller. After initial stabilization, shaping, and rolling, use 10 parts of polyiron, 20 parts of fly ash, 60 parts of calcium carbonate, and 8.4 parts of aluminum silicate. , 0.1 parts of phosphogypsum and 1.5 parts of Yuanming powder are stacked on the shoulder of the road according to the ratio of curing agent: (silt + aeolian soil) = 12:100, and the curing agent is spread on the initially stable roadbed and leveled. , Pave curing agent, mix twice with a road mixer, roll into shape according to 5.1.3 5.1.4 of "CJJ / T80-98", and cure for 7 days, and measure the compressive strength according to CJJ / T80-98 standard to 5.0Mpa .

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Abstract

The invention relates to a solidifying agent for silt and aeolian sand. The silt and aeolian soil curing agent is composed of the following components, which are proportioned by weight: 1-50 parts of fly ash, 5-70 parts of aluminum silicate, 0.1-15 parts of polyferric sulfate, and phosphogypsum 0.1-60 parts, Yuanmingfen 0.1-20 parts, calcium carbonate 5-60 parts. The curing agent can quickly coagulate and solidify the sludge or sludge and sand when the curing material is added to various silt or sludge and sand to obtain high early strength and meet the needs of various engineering constructions. And release a lot of heat to accelerate the reaction of the solidified material and the chemical reaction between the solidified material and the silt to meet the construction needs.

Description

Technical field: [0001] The invention relates to a curing agent, in particular to a curing agent for silt and aeolian soil. Background technique: [0002] Windy sandy soil is the culprit of sandstorms, and silt mostly affects the living environment of human beings. my country has a vast territory and is a country with a large amount of silt resources in the world. There is great potential for the development of silt recycling and comprehensive utilization. According to the survey and statistics of relevant departments, the annual collection of silt from domestic lakes and rivers can reach at least 70 million tons, and the total annual collection of silt from urban sewers can exceed 100 million tons. Collecting silt is beneficial to dredging rivers, preventing water eutrophication and purifying the urban environment, and the comprehensive utilization of silt can turn harm into profit. A large amount of silt is also produced in the water treatment of Daqing Oilfield, forming ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/12C09K105/00
Inventor 王寿光乔丽艳王冕宋丽娟林森李金成王钦福贾庆
Owner DAQING OILFIELD CO LTD