High-humic-acid multi-solid-waste coupling soft soil curing agent in cold region

A cold area, humic acid technology, applied in the field of soil curing agent, can solve the problems of reducing hydration products and reducing the strength of solidified soil

Pending Publication Date: 2022-02-11
吉林建筑科技学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Humic acid will affect the hydration reaction of cement and reduce the hydration products, thereby reducing the strength of solidified soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The high humic acid multi-solid waste coupling soft soil curing agent in the cold region of this embodiment includes the following raw materials in parts by weight: Portland cement 17kg, quicklime powder 21kg, waste glass powder 36kg, fly ash 9kg, activator 9kg, ion Replacement agent 3kg, humic acid degradation agent 1.5kg, water reducing agent 1kg, grinding aid 0.7kg, early strength agent 1.8kg, air-entraining agent 0.5kg.

[0025] Portland cement is P · O42.5 Portland cement. The quicklime powder is calcareous quicklime powder, and the content of magnesium oxide is ≤4%.

[0026] The activator is composed of the following components according to the following weight ratio: water glass: sodium hydroxide = 2:1. Water glass is 6kg, sodium hydroxide is 3kg, and the modulus of water glass is 0.7.

[0027] The ion replacement agent is composed of the following components in the following parts by weight ratio: aluminum chloride: calcium chloride=1:3. Aluminum chloride is...

Embodiment 2

[0036] The difference between this example and Example 1 lies in that the content of raw materials for preparing the high humic acid multi-solid waste coupling soft soil curing agent in cold regions is different.

[0037] High humic acid multi-solid waste coupling soft soil curing agent in cold regions, including the following raw materials in parts by weight: Portland cement 16kg, quicklime powder 22kg, waste glass powder 38kg, fly ash 10kg, activator 10kg, ion replacement agent 2kg , Humic acid degradation agent 2kg, water reducing agent 2kg, grinding aid 1.1kg, early strength agent 1.9kg, air-entraining agent 1kg.

[0038]The activator is composed of the following components according to the following weight ratio: water glass: sodium hydroxide = 3:1. The modulus of water glass is 1.2. Water glass is 7.5kg, and sodium hydroxide is 2.5kg.

[0039] The ion replacement agent is composed of the following components in the following parts by weight ratio: aluminum chloride: ca...

Embodiment 3

[0046] The difference between this example and Example 1 lies in that the content of raw materials for preparing the high humic acid multi-solid waste coupling soft soil curing agent in cold regions is different.

[0047] High humic acid multi-solid waste coupling soft soil curing agent in cold regions, including the following raw materials in parts by weight: Portland cement 18kg, quicklime powder 20kg, waste glass powder 35kg, fly ash 8kg, activator 6kg, ion replacement agent 2.4 kg, humic acid degradation agent 0.9kg, water reducing agent 1kg, grinding aid 0.54kg, early strength agent 0.9kg, air-entraining agent 0.5kg.

[0048] The activator is composed of the following components according to the following weight ratio: water glass: sodium hydroxide = 2:1. The modulus of water glass is 0.5. Water glass is 4kg, sodium hydroxide is 2kg.

[0049] The ion replacement agent is composed of the following components in the following parts by weight ratio: aluminum chloride: calc...

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Abstract

The invention discloses a high-humic-acid multi-solid-waste coupling soft soil curing agent in a cold region. The curing agent is prepared from the following raw materials in parts by weight: 16-18 parts of Portland cement, 20-22 parts of quicklime powder, 35-38 parts of waste glass powder, 8-10 parts of fly ash, 6-10 parts of an exciting agent, 2-3 parts of an ion replacement agent, 0.9-2 parts of a humic acid degradation agent, 1-2 parts of a water reducing agent, 0.54-1.1 parts of a grinding aid, 0.9-1.9 parts of an early strength agent and 0.5-1 part of an air entraining agent. The curing agent provided by the invention mainly solves the adverse effect of humic acid in high-humic-acid clay soil in northern China on soil curing, and can effectively improve the strength, durability and the like of the cured soil. The curing agent utilizes solid waste to replace part of Portland cement, so that waste utilization is realized.

Description

technical field [0001] The invention relates to a soil curing agent, in particular to a soft soil curing agent coupled with high humic acid and multiple solid wastes in cold regions. Background technique [0002] Soil curing agent has been used as a mature foundation reinforcement material in many countries. my country introduced soil curing agent in the early 1990s, and it has been widely used in foundation treatment projects such as roads, railways, water conservancy, and petrochemical industries. The organic matter in the soil refers to the sum of various animal and plant residues and microorganisms in the soil and the substances produced by their life activities. Organic matter can enter the interlayer space of the soil structure and cause the soil to expand, resulting in a decrease in the shear strength and permeability of the soil. [0003] The content of soil organic matter is related to factors such as climate, topography, vegetation, farming methods and soil paren...

Claims

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Application Information

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IPC IPC(8): C04B28/26
CPCC04B28/26C04B2111/00732C04B2201/50C04B22/062C04B7/02C04B22/064C04B14/22C04B18/08C04B22/12C04B22/124C04B22/10C04B22/08C04B2103/302C04B2103/52C04B22/085C04B24/122C04B24/18
Inventor 刘兰兰张延年
Owner 吉林建筑科技学院
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