The company is a large comprehensive enterprise known domestic production of geosynthetics and import and export enterprises specialized in the production, research and development of geosynthetics and new composite materials. Mainly produces operating YN crack control paste, crack paste way geogrid way geogrid, fiberglass geogrid, warp knitting geogrid, steel plastic geogrid, mining geogrid 3D geonet mat, high strength geonet, geocell, engineering fiber, plastic blind ditch, soft water pipe, short wire geotextile, filament geotextile, geomembrane, composite geomembrane and other engineering materials. Its products are mainly used in the aerospace, aviation, military, chemical, oil; roads, railways, coal mining, water conservancy, electric power, water and soil conservation, and environmental greening and infrastructure areas, has been widely used in a number of national key projects such as highways, railways . The Glassgrid is glass fiber geogrid referred. Is a geogrid high grade. Rovings of glass fiber as the main raw material, the use of the the reticular material made by weaving through a special coating process and the formation of new excellent geo-substrate, for the protection of glass fiber to improve the performance of the overall use of . Procrastinating similar compatibility principle focused with the composite performance of the asphalt mixture, and the full protection of the glass substrate, greatly improved wear resistance and shear resistance of the substrate, thus allowing for pavement enhanced resistance produce cracks rut ??highways disease. The fiberglass geogrid Applications 1. Enhanced using this material in the same case with the thickness of the non-reinforced asphalt layer, the extension of the fatigue life of the road coefficient is 4-7 years. Throughout the asphalt concrete roads built quite weak lower based on high-quality 50-100mm thick layer of geogrid savings asphalt concrete. 3. Effective control, delay and prevent the occurrence of reflective cracking caused by the cracking caused by low temperature and by the base layer cracks. With fiberglass geogrid reinforced material to enhance the asphalt concrete minimum thickness is 40mm, geogrid should be placed on the bottom of the layer of asphalt concrete. Increased use of glass fiber geogrid asphalt pavement can be reduced more than 50% of the rut. Maintenance system in the the original severe cracking of the asphalt concrete pavement Shop asphalt concrete layer. Rigid concrete pavement overlay asphalt concrete overlay layer: semi-rigid base layer above the asphalt concrete layer. These three pavement overlay using the fiberglass geogrid reinforced asphalt concrete, which can effectively prevent and delay the generation of reflective cracking, fast absorption and diffusion of the stress caused by gravity, reduce project cost, prolong life, reduce maintenance costs . 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. This limitation hinders the movement of aggregates, asphalt mixtures to achieve better compaction in the case of load, higher load-bearing capacity, better load transfer performance and smaller changes. 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 the paving table refurbishment program 5,4,3,2,1 layer; (4) especially for ultra-lane when its pavement rutting ≥ 25mm in order to guarantee the pavement roughness, the first to milling original pavement above layer (4cm) , and then order paving refurbishment programs of 2,1 layer. For the refurbishment program, in order to better play the role of glass fiber grille, through the program than the election to determine its laying program: in the top surface of the surface layer in the surface layer of the bottom surface of the old and new pavement Jiecha at the old grassroots top surface 4 at the glass fiber grid reinforced. 3. Precautions due to the renovation work and new construction are very different, so its construction technology and construction requirements of its specific characteristics: (1) construction in order to make the old and new layers force continuous to prevent seams seepage, milling dislocation should be left between the layers; (2) to ensure the quality of the project in order to facilitate the construction, require the use of self-adhesive fiberglass grille; (3) the laying of glass fiber grid prior to the cleaned surface, especially the old and the new road Jiecha at the required contact and tidy surface, no oil, debris; (4) for the old and the new road Jiecha at both sides of the lap length is not less than 50em; (5) in order to ensure the grille construction quality, tack coat oil required to shop sprinkle finished the building reinforced grille 24h before; (6) grid should be paved flat without warping folds; (7) strictly control the the pavement layers construction process and quality, to ensure that the layers of compaction and leveling degree of compliance. Application Effect Analysis (1) glass fiber grid construction process is simple, and easy to operate, easy to maintain. (2) glass fiber grid can reduce pavement rutting and improve the performance of asphalt concrete pavement structural strength. (3) reinforced grille can effectively inhibit reflective cracking, delayed road fatigue damage, extend pavement life purposes. Fiberglass geogrid project, highway: reflective cracking is the Asphalt Pavement common disease phenomenon. In accordance with the practice of the road works at home and abroad, the laying of the asphalt mixture layer of asphalt surface layer and in the set or rough set asphalt layer between a layer of geotextile fabric, can be used to eliminate or mitigate reflective cracks in the surface layer, thereby extending the road service life, reduce maintenance costs. However, due to the pouring of asphalt pavement temperatures up to 160 ℃ -180 ℃, resulting the geotextile fold, deformation, softening its performance greatly reduced, not only difficult to eliminate or mitigate the surface layer of reflective cracks, and makes more uneven asphalt pavement , and the the fiberglass geogrid unique performance, fully meet the requirements of the asphalt pavement, many works have been using fiberglass geogrid. Roadbed: roadbed is one of the most important structural organization of the highway system, the role of stress in the means of transport, the local area of ??the base layer is exposed to greater stress and strain, due to the long time local geographical changes by stress, the base layer The settlement, displacement, cracking phenomenon. Cause that road irregular curvature change due to the change of the base layer, the pavement cracks, wrinkling phenomenon. Accordingly, base layer reinforced very important. Fiberglass geogrid, specially treated to make the overall strength of the foundation layer greatly improve its role as rebar reinforced cement concrete. Fiberglass is applied to the asphalt road, can play a role in the following aspects. (1) anti-fatigue cracking of asphalt pavement must have a certain carrying capacity, fatigue failure can not occur within the prescribed time. The asphalt pavement under pressure directly below the layer in contact with the wheel, by the tensile force in the region other than the edge of the wheel load, the surface layer, due to two different nature force exerted by the force area, but close to each other, and therefore in two by The mutation occurs at the junction i.e. the force of the force region damage, fatigue cracking occurs in the effect of long-term loads. Fiberglass geogrid asphalt surface, dispersing the compressive stress and tensile stress, in the form a buffer zone between the two force areas, reduce the stress of the destruction of the mutations on the asphalt surface. At the same time, the the fiberglass geogrid low elongation reduced the amount of deflection of the pavement, excessive deformation of the road surface does not occur. (2) high temperature rutting of asphalt concrete at high temperature rheology force area of ??depressions in the vehicle loads, vehicle load is removed, the asphalt surface layer can not fully restore the original state, which produce the plastic deformation, the vehicle repeatedly the rolled plastic deformation accumulation of rut. By the the asphalt surface structure analysis, high temperature asphalt concrete the RCC role under load, the formation of a trace of the waveform rheological no constraints asphalt concrete rheology skeleton material in the surface layer, resulting in the asphalt surface rheology cumulative superposition, which is the essence of the rut. Fiberglass geogrid is used in the asphalt surface, the skeleton of the role played in the asphalt surface, asphalt concrete aggregate throughout the grille between the formation of composite mechanics embedded lock system to restrict the movement of aggregates, asphalt surface lateral binding layer, asphalt surface between the various parts of containment to prevent the passage of the asphalt surface, which play the role of the resistance to rutting. (3) resistance to low temperature shrinkage cracking cold period, the temperature of the asphalt concrete surface close to air temperature, asphalt concrete contract when cooled, tensile stress, tensile stress is further increased by repeated load asphalt concrete tensile stress exceeds the tensile strength, cracks, and at both ends in the crack, the tensile stress is more concentrated gradually crack formation, crack, causing disease. Fiberglass geogrid placed asphalt greatly improved, so that the tensile strength of the asphalt concrete, enough to withstand a larger tensile stress without Pavement, even tiny cracks are generated because of the local area, the cracks at the stress concentration by the glassy fiber geogrid pass and disappear, the cracks do not develop into cracks. (4) There are two types of delay reflective cracking cracks reflection surface layer cracks, cracks down reflex, destruction of the lower structure, reducing the strength of the pavement structure, in the rain season, the water enters the cracks in the traffic loads ( tire pressure) repeatedly pressed against the water in the cracks water pressure, water impact asphalt mixture, causing cracks to expand. Another is the original old surface layer cracks, the cracks generated upward reflecting road base or lower road grassroots, new hood pavement can not withstand the shear forces generated due to the underlying moving and tensile stress, resulting in cracks in the pavement surface.