Therefore, it can effectively reduce the adverse effects caused by load, temperature and foundation void, and improve the anti reflective crack ability of asphalt concrete overlay
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Under the action of long-term load, fatigue cracking occurs
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When some ancient tombs are saturated clay or fine-grained composite geogrid clay, the settlement is very slow after loading, and the settlement will continue after the completion of the project
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Geogrid manufacturer “13285449688” wechat “13184113881” glass fiber geogrid, also known as glass fiber geogrid or warp knitted glass fiber geogrid, can be divided into ordinary type and self-adhesive type according to different paving and fixing methods
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The diameter of composite geogrid drainage channel is o.
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In areas greater than 17 ° the soil is under pressure
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Geogrid manufacturer “13285449688” wechat “13184113881” reflection crack is caused by the deviation of the old surface layer at the joint or around the joint, and the stress concentration in the asphalt concrete overlay at the joint or above the joint caused by geogrid, which includes the horizontal deviation caused by the change of temperature and environmental humidity and the longitudinal cutting caused by the effect of traffic load Offset
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It is located in Lingxian County, Dezhou, Shandong Province, with convenient transportation
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Some of them will last for decades or even hundreds of years, which will have a negative impact on the use of future construction projects
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The company’s products use the specified standards to organize production, and the testing means are complete
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(2) the composite geogrid drainage channel is prone to deformation and failure when the local foundation produces transverse shear stress in the irregular period
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Under the action of load P, the soil is in the tension range of about 17
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15 0.6m, and the distance between drainage channels is 1.5 8m
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The asphalt overlay on the old asphalt concrete pavement is different, and the asphalt overlay will bear the load together with the old asphalt concrete pavement
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Because the force properties of the two stress areas are different and close to each other, Po damage is easy to occur at the junction of the two stress areas, that is, the sudden change of the force
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The closer the soil is to the surface, the greater the stress
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Geogrid manufacturer “13285449688” wechat “13184113881” steel plastic geogrid asphalt overlay on the old cement concrete pavement, its main function is to improve the use function of the pavement, but it has little contribution to the bearing function, the rigid concrete pavement under the overlay still plays a key bearing role
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When the composite geogrid is laid under the highway, the composite geogrid under the highway and on both sides of the highway within 17 ° is in tensile state, and the compressive stress of the composite geogrid beyond the range mainly plays the role of clamping the middle composite geogrid
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is a professional material engineering company which mainly produces new composite geomaterials and integrates anti-seepage design, technical consultation and construction services
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The reason of reflection crack of steel plastic geogrid is the offset of old surface layer at the joint or around the joint, and the stress concentration in the asphalt concrete overlay above the joint caused by geogrid, which includes the horizontal offset caused by the change of temperature and ambient humidity and the longitudinal cutting offset caused by the effect of traffic load
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Sales Hotline: 13285449688.
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However, the use of geogrid drainage pipe is prone to the following problems: (1) in the composite geogrid drainage channel, there are many problems At the junction of geogrid drainage channel and soil, soil particles are easy to enter into the holes of the composite geogrid, and then the composite geogrid is used to bond to make water enter the drainage channel
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We do the stress analysis of the asphalt overlay on the old asphalt concrete pavement: because the asphalt overlay is a flexible surface with the same property as the asphalt overlay, when it is loaded, the road surface will be deflected
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The asphalt overlay which is in direct contact with the wheel is under pressure, and the asphalt overlay is under tension in the area outside the wheel load edge
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The company’s products include geotextile, geomembrane, impervious membrane, composite geomembrane, waterproof board, bentonite waterproof blanket, ecological bag, grass proof cloth, geogrid and other geosynthetics
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The conventional method of composite geogrid drainage channel is: the main pipe filled with composite geogrid is driven into the compressible swimming stratum, then the potassium pipe is pulled out, and the composite geogrid column is left in the stratum
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According to the research, when adding geogrid at the bottom of overlay, the effect of delaying reflective crack is very obvious
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So it can effectively reduce the adverse effects caused by load, temperature and foundation void, and improve the anti reflective crack ability of asphalt concrete overlay
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Geogrid manufacturer “13285449688” wechat “13184113881” when the compression layer of local foundation is composite geogrid The settlement increases with the increase of the load during the construction period, and the settlement is basically determined after the completion of the project
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Composite geogrid reduces highway radiation stress: in practical use, when the highway bears concentrated load, the stress distribution radiates along different directions along the action point of the force
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Shandong Jiantong geotechnical materials Co., Ltd
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Therefore, the asphalt overlay on the asphalt concrete pavement, in addition to reflection cracks, but also because of the long-term effect of the load fatigue cracking
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