Water-resistant fatigue-resistant subgrade grouting material, and preparation method and applications thereof

A grouting material and water-resistant technology, applied in roads, roads, infrastructure engineering, etc., can solve problems such as low early strength, subgrade disease, subgrade subsidence, etc., achieve high unconfined compressive strength, and increase fatigue resistance. , the effect of promoting the hydration reaction

Inactive Publication Date: 2016-01-13
GANSU CHANGLONG HIGHWAY MAINTENANCE TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the repeated action of various loads and natural factors, the shape of the roadbed will change, especially when the roadbed encounters water, which will lead to roadbed diseases, such as collapsibility in loess, red mudstone in water Disintegration, corrosion of saline soil, etc., lead to subsidence, cracks and other diseases of the roadbed, seriously affecting the quality and stability of the road surface
[0003] At present, lime and cement are the most widely used soil stabilizers for roadbed reinforcement, but in engineering practice, lime soil and cement soil have disadvantages such as low early strength, large drying shrinkage, easy cracking, and poor fatigue resistance.
And its performance is greatly affected by the soil quality, and the curing effect on clay, organic soil and saline soil with high plasticity index is poor, and sometimes there is no curing effect

Method used

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  • Water-resistant fatigue-resistant subgrade grouting material, and preparation method and applications thereof
  • Water-resistant fatigue-resistant subgrade grouting material, and preparation method and applications thereof
  • Water-resistant fatigue-resistant subgrade grouting material, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 A water-resistant and fatigue-resistant roadbed grouting material, the grouting material is mixed with the following weight percentages (g) of raw material components at a water-binder ratio of 0.28: 90% cementitious material, 0.44 alkali-activated component %, water-resistant latex 9%, water reducing component 0.5%, stable component 0.02%, retarding component 0.04%.

[0038] The preparation method of the water-resistant and fatigue-resistant roadbed grouting material includes the following steps:

[0039] ⑴Weigh the gelling material, alkali-stimulating component, water-resistant latex, water reducing component, stabilizing component and retarding component according to the ratio;

[0040] ⑵ Determine the amount of water according to the water-to-glue ratio;

[0041] (3) Add the alkali excitation component to the water and stir until it is completely dissolved to obtain the alkali excitation component solution;

[0042] ⑷ After mixing the gelling material, water-resis...

Embodiment 2

[0044] Example 2 A water-resistant and fatigue-resistant roadbed grouting material, the grouting material is mixed with the following weight percentage (g) of raw material components at a water-binder ratio of 0.28: 93% of the cementing material, 0.24 of the alkali stimulating component %, water-resistant latex 6.2%, water-reducing component 0.5%, stable component 0.02%, retarding component 0.04%.

[0045] The preparation method of the water-resistant and fatigue-resistant roadbed grouting material is the same as Example 1 .

[0046] The application of the water-resistant and fatigue-resistant subgrade grouting material refers to: injecting the water-resistant and fatigue-resistant subgrade grouting material in a slurry manner at 10% of the weight of the soil in the subgrade or base soil to be reinforced.

Embodiment 3

[0047] Example 3 A water-resistant and fatigue-resistant roadbed grouting material. The grouting material is made up of the following weight percentages (g) of raw material components mixed with a water-binder ratio of 0.28: 95% cementitious material, 0.13 alkali stimulating component %, water resistant latex 4.3%, water reducing component 0.5%, stable component 0.02%, retarding component 0.05%.

[0048] The preparation method of the water-resistant and fatigue-resistant roadbed grouting material is the same as Example 1 .

[0049] The application of the water-resistant and fatigue-resistant roadbed grouting material refers to: injecting the water-resistant and fatigue-resistant roadbed grouting material in a grout method according to 9% of the soil weight in the roadbed or base soil to be reinforced.

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Abstract

The invention relates to a water-resistant fatigue-resistant subgrade grouting material. The water-resistant fatigue-resistant subgrade grouting material is prepared from following materials by weight at a water/binder ratio of 0.28 to 3.0 via mixing: 90 to 95% of a binding material, 0.13 to 0.44% of an alkali excitation ingredient, 4.18 to 9.5% of a water-resistant latex, 0.2 to 0.5% of a water reducing agent, 0.01 to 0.02% of a stabilizing ingredient, and 0.03 to 0.05% of a delayed coagulation ingredient. The raw materials are easily available; a preparation method is simple; performance is excellent; the water-resistant fatigue-resistant subgrade grouting material can be applied for strengthening spraying of new subgrade and grouting strengthening of sedimentation subgrade, and possesses excellent effects on areas suffered from long-term rain wash and large rain capacity.

Description

technical field [0001] The invention relates to a grouting material for road subgrade reinforcement, in particular to a water-resistant fatigue-resistant subgrade grouting material and a preparation method and application thereof. Background technique [0002] The subgrade is the foundation of the road, and it is the key to ensure the quality of the road surface. However, under the repeated action of various loads and natural factors, the shape of the roadbed will change, especially when the roadbed encounters water, which will lead to roadbed diseases, such as collapsibility in loess, red mudstone in water Disintegration, corrosion of saline soil, etc., lead to subsidence, cracks and other diseases of the roadbed, seriously affecting the quality and stability of the road surface. [0003] At present, lime and cement are the most widely used soil stabilizers for roadbed reinforcement. However, in engineering practice, lime soil and cement soil have disadvantages such as low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E01C3/04E02D3/12
Inventor 钱普舟曹青霞张国宏魏定邦王海林赵静卓王晖丁民张青
Owner GANSU CHANGLONG HIGHWAY MAINTENANCE TECH RES INST CO LTD
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