Through the engineering design practice, the article introduces the design and construction scheme to use the pre-cut seam of the cement steady grit stratum combined with the glass fiber grid for preventing the reflected crack of the asphalt concrete pavement, and sums up its practical treatment result.

Engineering experiences in recent years show that glass fiber grid used for old cement concrete road reinforcement can effectively restrain and slow down crack,extend road surface life,so that reduce highway maintenance cost,increase highway operation effect,and have wide applications.

Analyzing the mechanism of preventing crack by using glass fiber grid,and researching on the construction technics in old asphalt pavement.

From the forming mechanism of and preventive measures for the reflection cracks on the asphalt finish coat of the old cement pavement, this paper, expounds the necessity of setting up the stress-absorbed layer in the construction, and emphatically discusses the features of the glass fiber grille stress-absorbed layer and its application in the construction.

This paper puts forward that paving glass fiber grille can improve anti-rut ability of bituminous pavement,and that the anti-rut ability has something with the position of glass fiber grille by rut experiment of pitch concrete added glass fiber grille.

Application on fiberglass gridiron in old concrete road surface strengthening;

The paper expounds the character of fiberglass gridiron, the mechanism prevention and reflection crack, the construction method, points for attention and experiences based on the practice in the xiang-jing highway asphalt pavement construction.

316 national highway cement concrete pavement repaving design, the paper describes the structural design and construc tion techniques for additional bitumen pavement on existing road pavement in detail, including application of glass fiber geogrid and geotextile, and provides some beneficial experience for craft brother.

Ac cording to S106Deyang to Zhongjiang second class old highway cement concrete pavement r epaving design,this paper introduces rebuilding design,and SMA and glass fiber geogrid application in detail.

This paper introduces the application of glassgrid in old road rebuilding to preventing the reflection crack.

This paper analyses the property and function of glassgrid.

This paper states the application of glassgrid in preventing reflecting crack in cold area combined with the actual construction of the reinforcement of old road in the south exit of the road from Jiagedaqi to Heihe city.