タイトルまたは説明

projects DCA*0 DCA*0 DCA*0 DCA*0 DCA**0 Grid mesh mm≥ radial *5.4 *5.4 *5.4 *5.4 *5.4 zonal *5.4 *5.4 *5.4 *5.4 *5.4 Break force kn/m≥ radial *0 *0 *0 *0 **0 zonal *0 *0 *0 *0 **0 elongation at break %≥ radial 4 zonal 4 Properties: 1) High tensile strength: the strength-to-weight ratio of fiberglass is greater than that of plain carbon steel. At *0oC, the ratio of its elastic modulus to that of asphalt concrete is *0:1. Thus it is strong enough to prevent deflection cracks. 2) Low elongation: the fiberglass grid stress diagram shows as a vertical straight line, which indicates that its ability of deforming resistance is very high and its break elongation is less than 4%. 3) Creep resistance: fiberglass grid is not subject to creep, unlike many other materials. When bearing a load for long periods, fiberglass grid will not permanently deform. 4) Chemical compatibility with surfacing materials: Fiberglass grid is coated with an inorganic sizing that makes it chemically compatible to all the materials used in surfacing mixes. 5) Wide temperature range: the melting point of fiberglass is ***0C, while that of hot asphalt is **0C. Therefore, fiberglass grid is unaffected by the highest temperatures experienced in road surfacing. It is also unaffected by low temperatures and retains its strength in temperatures as low as **0oC. Unlike other materials such as carbon fiber, Kevlar fiber, steel rib and plaster fiber, the elastic modulus of fiberglass is not affected by temperature change. 6) Physical and chemical stability: fiberglass grid is treated with special inorganic sizing that makes it very resistant to physical wear and a wide range of corrosive environments created by chemical, biological and climatic changes. 7) Nesting, interlock and restraint effects: asphalt road mix extrudes