Technique for constructing water-saving moisture-preserving maintenance film and geogrid combined maintenance cement stabilizing structural layer

Abstract

The invention provides a technique for constructing a water-saving moisture-preserving maintenance film and geogrid combined maintenance cement stabilizing structural layer. According to the technique, high-hydroscopicity water-saving moisture-preserving maintenance film is used as a covering article, a geogrid is pressed on the maintenance film, and thus maintenance of a cement stabilizing structure is achieved. The technique specifically comprises the operating steps that the cement stabilizing structural layer is tightly covered with the water-saving moisture-preserving maintenance film, the maintenance film is covered with the geogird, and the geogird is pressed every 5-10 meters. According to the technique, by using the water-saving moisture-preserving maintenance film, escape of heat generated by absorbing sun irradiation and heat generated when the cement stabilizing structure hydrates in daytime can be effectively slowed down, and meanwhile the rising and falling speeds of the maintenance temperature can be regulated; the adopted geogrid is light, is a plastic planar net material having certain flexibility and can be sheared and connected on site easily, geogrids can also be in lap joint in an overlapped mode, and construction is easy and convenient; the construction technique has the characteristics that water is saved by multiple times, efficient moisture preservation is achieved, a good moisture preservation effect is achieved, construction is convenient, the period is short, cost is low, and environmental friendliness is achieved; the construction period can be effectively shortened, and construction cost is reduced.

Description

technical field [0001] The invention belongs to the field of highway maintenance, and in particular relates to a construction technology of a water-saving and moisturizing maintenance film and a geogrid composite health-preserving and water-stabilizing structural layer. Background technique [0002] At present, a large number of cement-stabilized structures are used in the design of the pavement structure base of highway engineering. After the paving and rolling are completed, this structure needs to be moisturized, heat-preserved and maintained in order to create a new paved structure that meets the temperature and humidity requirements. Maintain the environment to improve the early strength of the cement-stabilized structure, prevent cracking of the water-stabilized structure, and ensure the quality of the project entity. In actual construction, for a specific cement-stabilized structure, it is necessary to comprehensively consider factors such as the geographical location...

AI Technical Summary

Problems solved by technology

The materials in this process are very easy to wear and tear. If they are not replaced in time, the quality of health preservation will be affected. If they are replaced too frequently, the cost will increase. In addition, the temperature of the structure will change significantly due to the influence of the external temperature and the temperature of the curing water when the cover is lifted and watered. Surface shrinkage, affecting strength growth

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