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Road structure processing method based on reinforced alkaline residue improved soil

A processing method and improved soil technology, applied in roads, roads, buildings, etc., can solve problems such as increased construction costs, inability to realize solid waste resource utilization, and restrictions on large-scale application of alkali slag-improved soil bases, etc., to achieve simple construction, Promote the utilization of resources, the effect of strong bearing capacity and anti-deformation ability

Inactive Publication Date: 2021-11-16
HUAIYIN INSTITUTE OF TECHNOLOGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The countermeasures often need to increase the thickness of the asphalt layer, which increases the construction cost, so this deficiency greatly limits the large-scale application of alkali slag-improved soil base in highway engineering
[0004] However, in addition to geogrids, the existing reinforced soil structures mainly use high-strength fly ash soil, sandy soil, gravel soil, etc. Realize the utilization of solid waste resources

Method used

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  • Road structure processing method based on reinforced alkaline residue improved soil
  • Road structure processing method based on reinforced alkaline residue improved soil
  • Road structure processing method based on reinforced alkaline residue improved soil

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0030] The invention provides a road structure processing method based on reinforced alkali slag improved soil. The prepared test piece is a cylinder with a diameter of 150mm and a height of 175mm. The waste generated by the process, the main components of alkali slag are CaCO3, CaO, CaCl2 and so on. The main components of the improved soil are: alkali slag, fly ash, and cohesive soil, and the ratio range is (25~35): (2~5): (65~80). The reinforcement adopts two-way geogrid, the width of the longitudinal rib is 5mm, and the width of the transverse rib is 6mm. 5.6mm. Its processing method comprises the following steps:

[0031] Step 1: Prepare alkali slag improved soil, take alkali slag, fly a...

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Abstract

The invention relates to the technical field of road traffic construction, and discloses a road structure processing method based on reinforced alkaline residue improved soil, which comprises the following steps: taking a proper amount of alkaline residue, fly ash and cohesive soil, adding water for mixing by adopting the optimal water content of 23%, and then conducting sealing for 14 days to promote volcanic ash reaction; smearing engine oil in a road structure mold cylinder for lubrication, and packing the mixture into the alkaline residue improved soil in a multi-layer volume-controlled manner; after each layered volume is filled, laying a layer of reinforced material, laying 8-12 cm of alkaline residue improved soil for rolling compaction, and after compaction, sequentially packing the upper-layer mixture until a next-layer reinforcing layer is reached; and circulating and repeating the steps to form the reinforced road structure. Compared with the prior art, the reinforced alkaline residue improved soil is reasonably designed, geogrids and the alkaline residue improved soil are used as raw materials according to the optimal grid spacing, the base layer structure for the solid waste regeneration road is constructed, the design requirements of roads at or below a second level can be met, and resource utilization of alkaline residue solid waste is greatly promoted.

Description

technical field [0001] The invention relates to the technical field of road traffic construction, in particular to a road structure processing method based on reinforced alkali slag improved soil. Background technique [0002] At present, the rapid development of road traffic construction in my country has had a positive impact on the optimization of roadbed performance. In practice, in order to enhance the application effect of roadbed filler, maintain its good functional characteristics, and meet the requirements of driving safety, it is necessary to consider the application of alkaline dregs, control its application process, provide professional support for the potential application value of roadbed filler, and meet road engineering requirements. Science construction requirements. [0003] Since the main components of alkali slag are alkaline compounds such as CaCO3, CaO, and CaCl2, many researchers use it as a part of CaO instead to improve roadbed fillers and base mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/04E01C3/06C04B28/00
CPCE01C3/003E01C3/04E01C3/06C04B28/006C04B2111/0075C04B18/0427C04B18/08C04B14/10
Inventor 周俊德羡丽娜冯研殷伟陈高峰徐洋吉睿琪卞馨梓刘丹丹于典
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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