Construction method of corrosion resistant silica fume binding material in highway
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of cementitious materials and construction methods, applied in roads, roads, applications, etc., can solve problems such as corrosion of cement materials, and achieve the effects of consistent pouring quality, continuous pouring, and simple and efficient construction techniques
Active Publication Date: 2018-06-29
广东同创科鑫环保有限公司
View PDF4 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
specific surface area
aaaaa
aaaaa
density
aaaaa
aaaaa
specific surface area
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses a construction method of a corrosion resistant silica fume binding material in a highway. The construction method comprises the following steps that (1) silica fume cement slurry is prepared, specifically, silica fume, cement, mineral powder, coal ash and gypsum are mixed with bauxite, and then mixed with water, and the silica fume cement slurry is obtained; (2) foam is prepared, specifically, a foaming agent solution is promoted to foam, and the foam is obtained; (3) foam silica fume concrete is prepared, specifically, the silica fume cement slurry and the foam are mixed, and the foam silica fume concrete is obtained; (4) the foam silica fume concrete is poured, specifically, the foam silica fume concrete is conveyed to a highway construction area through a pipeline, and automatic flowing and pouring are conducted; and (5) the foam silica fume concrete is maintained, specifically, after the foam silica fume concrete is finally set, watering maintenance is conducted. The construction method provided by the invention applies corrosion resistant silica fume binding material to high filling of the highway with foam concrete, the construction technology is simple, convenient and efficient, continuous pouring can be achieved, and the pouring quality conforms to the requirement of 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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more