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A method for preparing pavement material and the prepared pavement material and application thereof

A technology for paving materials and powder materials, which is applied in the field of plant residue reuse and paving materials and paving materials, can solve the problems of complex chemical composition of emulsified asphalt, limited use in ecological fields, and impact on the appearance of pavement, and achieve social efficiency. And the effect of remarkable economic benefit, low cost and good road comfort

Active Publication Date: 2021-11-19
BEIJING SHOUFA TIANREN ECOLOGICAL LANDSCAPE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding emulsified asphalt can increase the waterproof ability of the material, and at the same time, it will also cause large shrinkage and cracking. The chemical composition of emulsified asphalt is complex, which is not suitable for use in garden landscape pavements, which limits its use in the ecological field.
[0007] In order to overcome the above problems, some researchers use magnesium chloride and magnesium oxide as curing agents to mix with agricultural and forestry plants to prepare building materials or road materials. However, because magnesium chloride and magnesium oxide are prone to return to halogen and frost, the appearance of the road surface is easily affected.

Method used

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  • A method for preparing pavement material and the prepared pavement material and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The preparation of embodiment 1 pavement material

[0060] 1. Ratio preparation

[0061] 1.1 Collection and treatment of plant residues

[0062] Collect plant residues in the area to be treated, such as discarded branches after landscaping, remove rotten grass, leaves, branches, etc., and use conventional mechanical crushing methods to crush the plant residues to obtain a certain length and thickness. of plant debris.

[0063] Among them, the selection of plant residues and the length and thickness of plant fragments can be adjusted according to different construction purposes. For example, in order to obtain a paving material with a certain strength, it is necessary to choose undecomposed lignified branches as the source of paving materials; if it is only used as a slope cover with low hardness requirements, non-lignified branches and leaves such as reeds and straws can be selected . Since the length and thickness of the plant debris also have a significant impact ...

Embodiment 2

[0090] The preparation of embodiment 2 paving materials

[0091] Except that when the dried plant fragments are mixed with the powder, the powder is added several times and then water is added, the others are the same as in Example 1.

Embodiment 3

[0092] The preparation of embodiment 3 paving materials

[0093] Except that fly ash is also included in the powder, others are the same as embodiment 1 or implementation 2.

[0094] Wherein, the consumption of fly ash is 15% of magnesium oxide weight.

[0095] It should be noted that the technical purpose of the present invention can be achieved if the amount of fly ash is any value within the range of 5-20% by weight of magnesium oxide.

[0096] After a large number of experiments, the present invention finds that after replacing part of magnesium oxide with fly ash, under the condition that its bonding and curing properties are not affected, not only the reuse of industrial waste can be realized, but also the cost of material preparation can be greatly reduced. Its compressive strength is not affected.

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Abstract

The invention discloses a preparation method of a pavement material and the prepared pavement material and its application, and relates to the technical field of plant residue reuse and pavement materials. The pavement material collects plant residues as the main Composition; crushing uncorrupted plant residues to obtain broken plant residues; carrying out non-rehalogenation bonding treatment on the broken objects to obtain pavement materials with the broken plant residues as the main component. The method of the present invention is not only simple, The cost is low, and it can also greatly reduce the phenomenon of brine return in the use of magnesium chloride and magnesium oxide, and the prepared pavement material has good flexibility, good comfort, high flexural strength, good water permeability, and good salt resistance. It can be applied to the pavement and use of ecological landscape construction.

Description

technical field [0001] The invention relates to the technical field of plant residue reuse and pavement materials, in particular to a method for preparing a pavement material, the prepared pavement material and its application. Background technique [0002] In recent years, plant residues have been increasing and distributed widely, especially the volume of plant residues is generally large, and its transportation costs are high. Along with large-scale ecological construction, the processing work has become increasingly severe. However, composting requires high-quality crushing and long-term stacking (especially for lignified branches), so the efficiency of this treatment method is low, and it is difficult to process a large amount of compost in a timely manner and widely distributed. plant residues. [0003] Paving material is a kind of natural or artificial material. It is laid in different ways on roads, squares, activity venues, bare ground, etc., and it is combined in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/32
CPCC04B28/32C04B2111/00284C04B2111/28C04B2111/76C04B2201/50C04B18/24C04B22/00C04B2103/54C04B18/08
Inventor 李义强曹玉海王少辉张璐张爱宾王建超李一为李伟胡京宁张岩吴华强
Owner BEIJING SHOUFA TIANREN ECOLOGICAL LANDSCAPE CO LTD
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