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The source of the anti-skid layer and the road surface is in Chongqing, this product was invented in Chongqing, Chongqing's Dongwu Road and Zhixiang, I remember that the anti-skid layer of Hong Kong, Zhuhai and Macao was made by Dongwu.
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Colored two-component anti-slip pavement material; Solvent-free wire marking material based on methyl olenoic acid resin consisting of 2 or 3 components, suitable for a wide range of climatic conditions and available in a variety of colors. The solvent-free formulation of the color two-component is dried by chemical reaction. Suitable for any type of spray marking system.
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Zhiye can, this Xiamen technology promotion meeting, I have understood!
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Nadi Chemical can, and so can we.
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Pavement epoxy resin thin layer engineering, Chongqing Dongwu road engineering is more professional. The epoxy anti-slip thin layer of the Hong Kong-Zhuhai-Macao Bridge is made by their company. They do both material sales and construction.
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The anti-skid performance of the pavement is evaluated by the anti-slip coefficient, which is expressed by the transverse force coefficient (SFC) or the pendulum instrument (BPN). The evaluation criteria should be in line with the provisions of the Technical Specifications for Highway Asphalt Pavement Maintenance.
1. Determination of friction coefficient of road surface.
The commonly used methods for measuring the friction coefficient of the road surface are: standard pendulum meter method, slip test vehicle method, trailer method, brake meter method, deceleration meter method, five-wheel instrument method, etc.
2. Determination of roughness.
The commonly used method for determining roughness is sand filling method or pumping method, in which fine sand or lubricating oil is filled into the surface texture to obtain the average depth of the texture structure per unit area of the pavement. Stereo photography is also used to determine the surface texture [1].
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Recommendation: XP's Auto-Sum feature has been expanded with a drop-down button to select one of five operations, such as Average, Count, and more. If you select a blank cell to open the Auto Sum drop-down menu, and click the Other Functions command to activate the Insert Function dialog box to complete the task of inserting functions into the current cell.
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It is tested by the coefficient of friction, the depth of construction, and the coefficient of lateral force!
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The anti-skid performance of asphalt pavement is mainly characterized by the transverse force coefficient SFC60 and the macroscopic structural depth of pavement td(mm), which is mainly applicable to highways and first-class highways. The pendulum value of the pendulum friction meter is suitable for low-speed highways, and the depth of microstructure is detected, which is suitable for secondary and below highways.
The determination of anti-skid index is mainly based on rainfall, which can be divided into three rainfall areas: >1000mm, 500 1000mm, and 250 500mm.
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Colored two-component anti-slip pavement material;
Solvent-free wire marking material based on methyl olenoic acid resin consisting of 2 or 3 components, suitable for a wide range of climatic conditions and available in a variety of colors.
The solvent-free formulation of the color two-component is dried by chemical reaction.
It is suitable for any type of sprayed marking system, colored pavement system, as well as structural rain line and other traffic systems, especially for highway sidelines and their lane markings.
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If you don't know, think about it.
The EXPO uses a thin layer of epoxy anti-slip pavement.
There is no methyl enoic acid at all.
The red particles on it are calcined particles of the Mohs scale7 and the same material used in the bus lane on Jiefang Road in Xi'an.
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Concrete pavement embossing can be spaced, and the spacing can be determined according to different construction methods. There are two kinds of anti-skid structure construction of cement concrete pavement: mesoscopic texture construction and macroscopic groove method construction.
1. The construction of mesoscopic texture shall comply with the following provisions:
1. The mesoscopic texture should be dragged out on the wet and soft surface after smoothing, and the steel bracket should be used to drag 1 3 layers of stacked linen, canvas and other cloth pieces. The length of the cloth piece in contact with the road surface should be coarse sand with a large fineness modulus, and the contact length should be small; For fine sand with a small fineness modulus, the contact length should be larger.
2. Use a plastering machine to trim the dry and hard smooth surface, and use a harder bamboo broom to sweep out the customary texture.
3. The smooth surface that has been hardened can be made by means of steel brush bristles, sandblasting, steel shot blasting, dilute hydrochloric acid corrosion, high-pressure water jet, etc.
Second, the use of macro groove method construction should comply with the following provisions:
1. The minimum groove width of the grooving machine should not be less than 500mm. The mating distance is the same as the slot spacing. During the groove engraving process, the groove corners should be avoided from being damaged, and the groove machine should not be lifted or the groove direction should not be changed in the middle.
The groove shall not be carved through the longitudinal and transverse joints. After notching, the surface should be rinsed immediately and the health of the pavement should be restored.
2. The rectangular groove depth should be 3 4mm, the groove width should be 3 5mm, and the groove spacing should be 12 25mm. When variable pitch is used, the groove spacing can be randomly adjusted within the specified size range.
3. In areas where the road surface is icy, a semicircular groove with an upper width of 6mm and a lower width of 6mm can be used.
Related extension: The surface layer of extremely heavy, extra-heavy and heavy traffic load grade highway cement concrete should be made by notching method to make macroscopic anti-skid structure. Medium and light traffic load levels can be made by using the groove pulling method to make macroscopic anti-skid structures.
Longitudinal grooves should be used in horizontal curved road sections, bridge decks, and tunnel pavements. When the combined slope is less than 3%, the longitudinal groove can be used for the road section that requires noise reduction. For longitudinal slope sections with a combined slope greater than or equal to 3%, transverse grooves should be used.
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There is generally no mechanical index for hot-mix asphalt green concrete pavement, and Bai is the Marshall index, which includes Marshall stability, dynamic stability, and splitting strength (water immersion, freeze-thaw); Volume indicators, including porosity, ore clearance ratio, asphalt saturation, density.
If it is a micro surface, it is a little different, and it is necessary to do tests such as consistency, wet wheel wear, cohesion, and the amount of sand adhered to the load wheel.
Depth of construction and coefficient of friction are just two of the acceptance indicators.
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Floor paint can be used on outdoor roads, which can be applied to concrete or asphalt roads!
Clause. First, the role is different.
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Specifically, you can consult Beijing Katuo Construction Engineering, Beijing Katuo Construction Engineering's business is widely distributed in residential, automobile manufacturing, machinery, chemical, electronics, medicine, tobacco, papermaking, education, printing, food, supermarkets and other industries, and constantly provide perfect system solutions for these industries to meet individual needs. Looking forward to hearing from you!
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