Guangzhou Decini Building materials JBL-01 Three coats of FYT-1 bridge deck waterproof coating It is a bridge waterproof material. The coating can resist high temperature up to 180 ℃ and low temperature up to - 40 ℃, which expands the requirements for the application of special temperature environment. In addition, the problem of rolling peeling of pavers and transporters has been solved, which exceeds the requirements of existing national standards. FYT-1 improved asphalt waterproof coating is improved on the basis of JT/T535-2004 and JC]/T975-2005 standards. The product has been tested by relevant departments, and all technical indicators exceed the standard requirements.
Product features
Guangzhou Decini building material Three way FYT-1 bridge deck waterproof coating It is an emulsion coating with good dispersion effect and small particle size. It is modified with a variety of rubbers and asphalt, which are cross linked with each other. The conjunctiva has high strength, and maintains the elasticity and low-temperature properties of the rubber. It has good adsorption, fast film formation, strong impermeability, shear resistance and slow aging, and can withstand the long-term load requirements of the bridge deck. Prevent water seepage, structural damage caused by spraying antifreeze salt water and chloride by snow removal vehicles, rust of steel bars and concrete cracking and spalling, and extend the service life of the bridge 。
Construction method
1. The construction process is simple. The construction can be done by mechanical spraying or manual painting. The drying is fast and the construction period is short.
2. The waterproof layer is cheap, and generally only needs to be painted three times to achieve waterproof effect.
3. The waterproof layer is firmly bonded with the base course, and the waterproof layer is firmly bonded with the upper asphalt concrete.
Technical indicators:
Main technical indicators (according to JT/T 535-2004 and JC/T975-2005 standards for water-based asphalt based waterproof coatings for roads and bridges) Scope of application: applicable to highway bridges, urban overpasses, bridges and culverts and other waterproof works.
Construction, transportation and storage:
1. Preparation of construction tools: the mixing bucket, spraying machine or * * bristle brush shall be prepared before construction.
2. Base course requirements: the strength of bridge deck and beam concrete shall reach the design mark, and the surface shall be free of loose laitance, peeling, hollowing and serious cracking. The surface flatness shall meet the requirements of bridge specifications. The elevation of the upper opening of the vertical drainage pipe shall be lower than the elevation of the base layer. The drainage outlet must be firmly installed with the base layer without any looseness.
3. The base course shall be clean, dry and free from ponding.
4. Base course treatment: the base surface shall be free of dust, floating ash, impurities, oil stains, etc. Before the waterproof layer is made, the surface can be cleaned by air compressor, water purification, degreasing agent, etc. If there are hard sundries such as concrete and mortar, they should be polished off.
5. Construction steps of waterproof layer: (take three coats as an example) 1) Before painting, the barreled coating shall be mixed evenly. 2) Before large-area painting, use a small brush to paint the leak twice, and apply waterproof paint three times on the internal corners, and then brush the first coat of paint on a large area. 3) The second coating can be applied after the first coating is dry. 4) The second coat of paint shall be applied after the surface is dry.
6. Coating amount: 0.5-1.0kg/, coating thickness is 0.50.8mm in general, and spraying is 0.3kg/m.
7. The construction temperature should be 035 ℃, and it is not suitable for construction in rainy days and freezing periods.
8. The packaged products are packed in iron drums with lids, each weighing 50kg.
9. Transportation: The product is harmless and nonflammable, and can be transported by general transportation methods.
10. Storage: The storage period of the product is 6 months, and it should be stored in a warehouse above 0 ℃. In summer, it should be protected from sunlight.
142800 km rural roads in Jiangsu have been guaranteed by law
By the end of 2019, the total mileage of rural roads in Jiangsu had reached 142800 kilometers, 59700 rural road bridges, and the coverage rate of two lane roads to administrative villages had exceeded 95%. The mileage of rural roads above Class II accounted for * * of all provinces (regions) in China. There are 3247 rural passenger transport routes (including town and village buses) and 12000 passenger transport vehicles in the province. 1038 town and village buses have been opened, with an opening rate of more than 95% and an annual number of trips of more than 100 million people. Accelerate the improvement of the rural three-level logistics service system, explore and rely on the existing urban and rural passenger mail delivery (express) mode, strengthen cooperation with postal, trade, supply and marketing and other departments, create a mail delivery integration service brand, achieve full coverage of express delivery in villages and towns across the province, and all administrative villages have "village mail stations".
The Regulations further clarify the division of responsibilities for rural roads: the relevant departments of the people at the county level are the main body responsible for rural roads, and the relevant departments of the people at the provincial and municipal levels supervise their performance of the main responsibilities; The county (city, district) transportation departments are specifically responsible for the construction, management and maintenance of county roads, the management of township roads and administrative penalties involving village roads, as well as the related operation of rural roads; The relevant departments of township people are responsible for the construction and maintenance of township and village roads and the management of village roads; The administrative organ of the development zone shall do a good job of the work related to rural roads in the region according to the responsibilities specified by the relevant departments of the people at the same level; The provisions of the Regulations on the relevant departments of township people shall apply to the subdistrict offices performing the relevant responsibilities of rural roads; Under the guidance of the relevant departments of the township people, the villagers' committee will incorporate the protection of village roads into the village rules and regulations, and assist in the construction, management and maintenance of township roads and village roads; The provisions of the Regulations on the villagers' committees shall apply to the residents' committees undertaking the work related to rural roads.
The Regulations clearly define that rural roads are social public infrastructure, establish a fund guarantee mechanism focusing on public financial input from relevant departments, stipulate the responsibility of fund guarantee of relevant departments of the people at the county and township levels, specify that relevant departments of the people at the provincial and district level should increase their investment in rural road construction and maintenance, establish a fund subsidy mechanism for rural roads and make timely adjustments.
