Usage old asphalt concrete pavement, reinforced enhanced asphalt surface, prevention and treatment of disease. Cement concrete pavement converted composite pavement, inhibition of the plate contraction caused by the reflective cracking. Road Billiton improvement works at the prevention and treatment of old and new combination unit and uneven settlement caused cracks. 4. Soft soil foundation tendons processing, analysis of water consolidation in favor of soft soil, effectively inhibit the settlement, uniform stress distribution, enhanced roadbed overall strength. 5. The half steel grassroots of new roads produce shrinkage cracks, reinforced reinforced to prevent foundation cracks reflection caused cracks in the road Features high strength, low elongation, high temperature, high modulus, light weight, good toughness, resistance corrosion, long life and other characteristics, can be widely used in the old cement pavement, maintenance of airport runways, dams, river banks, slope protection, BRIDGES pavement enhanced processing and engineering, and enhancements to the pavement, reinforced to prevent the fatigue of the pavement rutting cracks, hot and cold stretching the reflection cracks cracks and below, and can pavement bearing stress dispersion, to extend pavement life, high tensile strength, low elongation, no long-term creep, good physical and chemical stability, good thermal stability, resistance to fatigue cracking, high temperature rutting resistance to low temperature shrinkage cracking, retard reduce reflective cracking. 1, the product has a high strength, low elongation, high temperature, high modulus, light weight, good toughness, corrosion resistance, long life and other advantages, can be widely used in the old cement pavement, airport runway maintenance, dams, river banks , slope protection, bridge pavement engineering enhanced processing enhancements to the road surface, reinforcing, prevent the pavement rutting fatigue cracks, hot and cold the telescopic crack and the following reflection crack, and can stress dispersion pavement load and extend pavement life . 2, high tensile strength, low elongation: Fiberglass geogrid is glass fiber as raw material, the tensile strength of the glass fiber is very high, more than other fibers with ordinary metal. While its high modulus, having a high deformation resistance, elongation at break of less than 3%. 3, no long-term creep: creep resistance as a reinforcing material, with the ability to resist deformation in the case of long-term loads i.e. is extremely important, the glass fiber does not creep, and to ensure that the products can be long-term retention performance. 4, good physical and chemical stability: fiberglass geogrid can resist all kinds of special treatment agent after the coating process, the physical wear and chemical attack, but also against biological erosion and climate change, to ensure that its performance is not lost. 5, good thermal stability: glass fiber melting point above 1000 ℃ guarantee the Fiberglass Geogrid withstand the high temperature stability of the paving operation. 6 aggregates embedded lock and limiting effect: As the fiberglass geogrid mesh structure, aggregate in asphalt concrete can therethrough, so that the formation of the mechanical interlocking. Such restrictions hinder the movement of aggregates, asphalt mixture to achieve better compaction in the case of load, higher load-bearing capacity, better load transfer performance and smaller deformation. Fiberglass geogrid coated self-inductance of the the adhesive processing from the grille and the contact surface layer close together, on the basis of maintaining the of fiberglass geogrid features and functionality, with convenient construction, paving formation characteristics, especially suitable for road construction, pavement strengthening, reconstruction and other projects of the old road reinforced enhancement. Composite geogrid fiberglass or high-strength polyester fiber yarn and non-woven fabric made by weaving or bonding from the new composite geotextile material, organic combination of glass fibers and non-woven fabric both excellent performance, in addition to with geogrid has high strength, low elongation, high elastic modulus, temperature and other characteristics, but also has good anti-infiltration and filtration ability, is a versatile Geosynthetics Extension service life, reduced maintenance frequency, reduce the project cost, suitable for road pavement roadbed, irrigation dams and other projects reinforced enhanced protective isolation. A high-strength polyester fiber geogrid reinforced embankment new quality geotextile substrate using high-strength polyester fiber or polypropylene fiber as raw material, after directional weaving warp knitting, made by a special process dipped coating processing. Has a very high tensile strength, low elongation, roadbed engineering can effectively prevent pavement cracking, improve the bearing capacity of soft ground to prevent foundation settlement, to reduce the project cost, improve construction efficiency, to improve road, rail projects such as the use of quality and service life. The domestic for asphalt pavement reinforced glass fiber grille more types, but not explicitly test indicators, test methods and standards are not unified, the urgent need to develop product specifications suitable for China's national conditions, performance requirements, test methods and standard glass fiber grid gate as a stiffened grille, due to its high tensile strength and high modulus of elasticity, in recent years, has been widely used in new or rebuilt road asphalt concrete pavement, asphalt mixture used to increase the tensile strength of the overall reduce permanent deformation, prevent and reduce surface reflection cracks, delay fatigue damage, the purpose of extended pavement life. Highway pavement refurbishment, due to their significantly different engineering properties with new construction, but also fewer applications glass grille reinforced pavement, there is still no more successful experience can learn. Based on a northern highway pavement refurbishment, the use of glass fiber grid reinforced modified asphalt concrete pavement different programs and driving test after test measurement, the asphalt concrete pavement condition index, strength index and ride quality index indicators than The large increase, better reinforcement effect. 2. The engineering application test is based on the northern highway as the object of study. Section highway has been operating for nearly a decade, and in recent years due to traffic flow, especially the rapid growth of the overloaded vehicles, the existing pavement structure already has not suited to the current traffic requirements, pavement cracks, pits, ruts and other diseases, severe impact of traffic safety. Determined by the relevant departments, and road repair. The refurbishment program than the election, taking into account further reduce the permanent deformation of the road surface, inhibit reflective cracking, extend pavement life purpose, on the basis of the modified asphalt concrete overlay, the use of glass fiber grid reinforced. Following table for a comparison of the original design of the pavement structure refurbishment program. Pavement refurbishment and new construction, to determine the specific refurbishment program, the basis for the different pavement strength using different refurbishment program. The basic idea in the design of the refurbishment program for traffic is heavy carriageway, as follows: (2) 50 (0.01mm) 100 (0.01mm), milling the same route Powerphones layer, base and subbase, the order paving table refurbishment program of 5,4,3,2,1 layer;