A kind of inorganic sludge curing agent, road construction material and preparation method thereof

A technology of curing agent and sludge, applied in the field of road construction materials and their preparation, road construction materials, and inorganic sludge curing agent, can solve the problems of unsatisfactory use effect, dependence on curing effect, poor precipitation effect, etc., and achieve good physical and chemical Stability, beneficial to the protection of the environment, the effect of structural stability

Active Publication Date: 2017-06-30
西安赛特实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lime, cement and other materials are often used in the prior art to solidify silty soft soil, but the solidification effect of this type of solidification agent depends on the particle size and water content of the soil, and the precipitation effect is poor. After solidification, the silt often shows low strength and poor permeability. and other shortcomings, resulting in unsatisfactory results in engineering applications. Therefore, it is urgent to develop a new type of environmentally friendly and harmless sludge curing agent to solve the defects of the existing technology.

Method used

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  • A kind of inorganic sludge curing agent, road construction material and preparation method thereof
  • A kind of inorganic sludge curing agent, road construction material and preparation method thereof
  • A kind of inorganic sludge curing agent, road construction material and preparation method thereof

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Effect test

Embodiment 1

[0035] This embodiment provides a road construction material, which is made by mixing 21kg of inorganic silt curing agent, 6kg of cement, 22kg of construction waste, and 51kg of silt.

[0036] The inorganic sludge solidifying agent of the present embodiment consists of 42 parts of natural pumice powder and 58 parts of hectorite powder in parts by weight. Wherein, the preparation method of the inorganic sludge solidifying agent of the present embodiment is:

[0037] Step 1: crushing pumice minerals and laponite minerals and passing them through a 0.15mm square hole sieve, retaining the under-sieve, and preparing pumice powder and laponite powder for later use;

[0038] Step 2: Calcining the natural pumice powder and hectorite powder prepared in Step 1 in a high-temperature furnace at a calcination temperature of 550° C. for 3 hours;

[0039] Step 3: Place the pumice powder and laponite powder obtained in step 2 in a sulfuric acid solution with an acid solution concentration of...

Embodiment 2

[0042] This embodiment provides a road construction material, which is made by mixing 10kg of inorganic silt curing agent, 10kg of cement, 25kg of construction waste and 55kg of silt.

[0043] In parts by weight, the inorganic sludge solidifying agent in this embodiment is composed of 49 parts of natural pumice powder and 51 parts of hectorite powder. Wherein, the preparation method of the inorganic sludge solidifying agent of the present embodiment is:

[0044] Step 1: crushing pumice minerals and laponite minerals and passing them through a 0.15mm square hole sieve, retaining the under-sieve, and preparing pumice powder and laponite powder for later use;

[0045] Step 2: Calcining the natural pumice powder and hectorite powder prepared in Step 1 in a high-temperature furnace at a calcination temperature of 550° C. for 3 hours;

[0046] Step 3: Place the pumice powder and laponite powder obtained in step 2 in a sulfuric acid solution with an acid solution concentration of 2.4 ...

Embodiment 3

[0049] This embodiment provides a road construction material, which is made by mixing 16kg of inorganic silt curing agent, 7kg of cement, 24kg of construction waste, and 53kg of silt.

[0050] In parts by weight, the inorganic sludge solidifying agent in this embodiment is composed of 46 parts of natural pumice powder and 54 parts of hectorite powder. Wherein, the preparation method of the inorganic sludge solidifying agent of the present embodiment is:

[0051] Step 1: crushing pumice minerals and laponite minerals and passing them through a 0.15mm square hole sieve, retaining the under-sieve, and preparing pumice powder and laponite powder for later use;

[0052] Step 2: Calcining the natural pumice powder and hectorite powder prepared in Step 1 in a high-temperature furnace at a calcination temperature of 550° C. for 3 hours;

[0053] Step 3: Place the pumice powder and laponite powder obtained in step 2 in a sulfuric acid solution with an acid solution concentration of 2....

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Abstract

The invention provides an inorganic silt curing agent and a preparation method thereof as well as a road material. The road material comprises 10-21 parts of an inorganic silt curing agent, 6-10 parts of cement, 22-25 parts of construction waste and 51-55 parts of silt, wherein the inorganic silt curing agent comprises 42-49 parts of natural ground pumice and 51-58 parts of hectorite powder. The preparation method of the inorganic silt curing agent comprises steps as follows: raw materials are calcined, soaked in a sulfuric acid solution and mixed with a coupling agent solution, and the mixture is dried and physically modified. The inorganic silt curing agent is a natural mineral and is environment-friendly, harmless, stable in structure, low in cost, widely-sourced and wide in application. The function of the inorganic silt curing agent is effectively performed to the greater extent through physical modification. The construction waste is adopted in the road material, waste reutilization is realized, the construction cost can be effectively reduced during road pavement, and environmental protection is facilitated.

Description

technical field [0001] The invention belongs to the field of road materials, and relates to road construction materials, in particular to an inorganic sludge curing agent, road construction materials and a preparation method thereof. Background technique [0002] In order to improve the water quality of rivers and lakes, ensure the normal flood discharge capacity of rivers and the smooth flow of waterways and ports, countries around the world, including my country, are carrying out large-scale dredging and dredging projects, and the resulting huge amount of silt dredging has become a problem. Inescapable reality. Conventional technical means for sludge treatment, such as stacking and discarding, will bring many problems such as environmental pollution and land waste. If the sludge is solidified with appropriate methods or materials and used for road paving, multiple environmental and social benefits. Lime, cement and other materials are often used in the prior art to solidi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/14C04B28/00C04B18/16C04B18/30
CPCY02W30/91
Inventor 王朝辉郭腾腾杜耀辉李天宇郭瑾王海梁高志伟
Owner 西安赛特实业有限公司
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