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A construction method of anti-corrosion silica fume cementitious material in highway

A technology of cementitious materials and construction methods, which can be applied to roads, roads, ceramic products, etc., and can solve problems such as corrosion of cement materials

Active Publication Date: 2021-06-08
广东同创科鑫环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of the above-mentioned sulfate corrosion of cement materials, it is necessary to develop an anti-corrosion cementitious material suitable for high filling of highways

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] 1. Construction site preparation

[0046]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 ​​no more than 400m by formwork 2 The 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 t...

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Abstract

The invention discloses a construction method of an anti-corrosion silica fume gelling material in roads. This construction method comprises the following steps: 1) preparing silica fume cement slurry: first mixing silica fume, cement, mineral powder, fly ash, gypsum and bauxite, and then mixing with water to obtain silica fume cement slurry; 2) Preparation of foam: Foaming of foaming agent solution to obtain foam; 3) Preparation of foamed silica fume concrete: mixing silica fume cement slurry with foam to obtain foamed silica fume concrete; 4) Pouring of foamed silica fume concrete: pouring foam The silica fume concrete is sent to the highway construction area through pipelines, and poured by gravity; 5) Curing of foamed silica fume concrete: After the foamed silica fume concrete is finally set, it is cured by sprinkling water. The invention proposes to apply an anti-corrosion silica fume gelling material to the high filling of foam concrete roads. The construction process is simple and efficient, and continuous pouring can be realized, and the pouring quality meets the requirements of on-site construction.

Description

technical field [0001] The invention relates to a construction method of an anti-corrosion silica fume cementitious material in roads. Background technique [0002] The construction of expressways in mountainous areas is limited by terrain, landform, 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 excavation As for earthwork resources, more and more high-fill subgrades 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 improved in terms of quantity and height in the future reconstruction and expansion of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B28/04E01C3/00
CPCC04B28/04C04B38/106C04B2201/20C04B2201/50E01C3/00C04B7/13C04B18/142C04B18/08C04B14/303C04B22/002C04B2103/304C04B22/143
Inventor 陈锡麟陈忠平李鹏潘敏尧何威冯波宇伍航宇黄小波黄威龙张善硕赵泽民
Owner 广东同创科鑫环保有限公司
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