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A construction method of cementitious material based on iron tailings in high road filling

A technology of cementitious materials and construction methods, which can be applied to cohesive pavements, roads, roads and other directions paved on site, which can solve the problems of waste of resources, land occupation, and destruction of ecological balance, so as to save manufacturing costs and be conducive to sustainable development. The effect of development

Active Publication Date: 2020-12-29
GUYAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of tailings not only occupy land and cause a waste of resources, but also bring serious pollution and harm to the living environment of human beings, destroying ecological balance and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] 1. Construction site preparation

[0047] Site preparation includes: leveling the site, cleaning the site garbage and floating dust, cleaning the floating soil in the site, so as not to affect the bonding force between the foam concrete and the base layer after pouring, keeping the site to be treated clean, flat, firm and dry; watering the site when the weather is dry Pretreatment, wet the site, sprinkle at least twice to increase the bonding force between the pouring layer and the base, but there should be no obvious water accumulation on the surface of the base, so as to prevent the foam in the foam concrete from breaking due to excessive water absorption at the base; The site is divided into an area of ​​less than 400m by formwork 2The area of ​​the formwork should be fixed with formwork brackets to prevent the formwork from collapsing due to the lateral pressure of the foam concrete during construction; the height of the formwork should be adjusted according to the ...

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Abstract

The invention discloses a construction method of a cementing material based on iron tailings in a highway high embankment. The construction method includes the steps: 1) construction site preparation;2) cement slurry preparation; 3) foam preparation; 4) foam concrete preparation; 5) foam concrete pouring; 6) foam concrete curing. The invention provides a construction process of cast-in-situ foamconcrete based on the iron tailings. The concrete is used for the highway high embankment and can be simply, conveniently, efficiently and continuously cast, and casting quality meets the requirementsof site construction. A large number of solid waste iron tailings are used for replacing cement in the construction method of the highway high embankment, the solid waste is recycled, the manufacturing cost of a highway is saved, and sustainable development is facilitated.

Description

technical field [0001] The invention relates to a construction method of a cementitious material based on iron tailings in high filling of highways. Background technique [0002] In the western part of China, the terrain is dominated by mountains. The construction of expressways in mountainous areas is limited by terrain, geomorphology, and hydrogeological conditions. It is inevitable to carry out high-fill expansion construction on the original roadbed; at the same time, in order to meet the overall planning requirements of the country , and make better use of excavated earthwork resources, more and more high-fill roadbeds will be used in the reconstruction and expansion of expressways. In high-grade highways in mountainous areas, fill and excavation roadbeds account for 80%, and high fill embankments exceeding 20m are not rare. With the promotion of national policies and the rapid development of traffic construction, the structure of high embankments will be further impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B28/04C04B18/12E01C7/14
CPCC04B18/12C04B28/04C04B38/106C04B2111/0075C04B2201/50E01C7/142C04B38/0067C04B18/08C04B18/142C04B18/24C04B18/26C04B22/064C04B22/145C04B22/002C04B2103/42Y02W30/91
Inventor 冯波宇李鹏陈锡麟潘敏尧陈忠平何威伍航宇黄小波黄威龙张善硕赵泽民
Owner GUYAN TECH DEV CO LTD
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