subject: On The Pervious Performance During Use Of Permeable [print this page] On The Pervious Performance During Use Of Permeable
China is a serious water-poor countries. If the per capita water resources in the indicators to measure, China is only the world average of 1 / 4, after ranking at No. 110. Dry conditions prevailing in our country, but also growing trend, people in many cities there are different levels of water shortages, which have serious water shortage in more than 110. Areas of water resources is characterized by uneven distribution of land and water resources uneven mix; year are allocated to, a large annual variation; even more prominent abundance with dry years; river siltation serious. These characteristics result in a contradiction between water supply and demand in China is very big, but also determines the development and utilization of water resources in China is very arduous task. Permeable Brick R & D and application of the conservation of valuable water resources, ease the contradiction between water supply and demand are very important, but the pervious concrete pavement used in the year, its water permeability reduced by 1 / 3 and other issues has been hampered pervious promote the use of the bottleneck.
China Today Building Materials Newspaper published a famous Waterproof Experts Building Materials Production Technology Research Center, Senior Engineer, Professor Yang a signed article, through the permeable brick raw materials, shop deposited materials and the use of environmental analysis, professional analysis of scientific popularization and application of permeable brick in the problems encountered in the process, of the corresponding solution, hope to improve the performance of pervious products and promote the use of boost.
Build a resource efficient and environment friendly society to save water resources, as many of our more than 400 cities in such a dry country, has naturally become a hot topic of concern to the whole society, rainwater recycling, as a matter of procedure referred to agenda. Pervious surface materials become the new favorite, frequently appear in the exhibition, became a newspaper TV And other mass media coverage of the hot spots. Production enterprises that capture the business opportunities in the municipal sector that has found a shortcut recycling rainwater, eager investors, capital began to tilt to the market.
At the exhibition site, the staff will be on the surface of the water from the pervious fall, an instant, the thickness of the water from the brick surface of seepage under the direction of drip, porous permeable brick vividly features to attract the audience eye. But this is porous brick at the exhibition or in the laboratory of the "performance", using pure water or distilled water without gas, or water. If pervious paved road or square, the actual use of environmental conditions than the booth, laboratory complex. Rain, mud, mud splashed on the surface of the porous brick, permeable brick can it? Maybe today will permeable, but the use of 1 month, 3 months, six months, a year after, but also permeable it? Many people may have not considered this issue.
I do not deny that pervious is a kind of permeable surface material properties. This product is also foreign, but not use. My own research and development production of this product done a lot of enterprises have achieved some success, for the laying of permeable ground found a new way. But science is "seeking truth from facts", can not avoid promoting the use of permeable brick in the process will inevitably encounter problems that restrict their use of harsh environmental conditions play a permeable features, poor use of the environment may cause total loss of permeability function pervious.
Historical experience is a mirror.
Glass Bead is a good road reflective material, its use as a foreign road, highway and road signs on the airport runway. At night Car Traffic, aircraft movements, light vehicles and aircraft formed according to the reflective glass beads for the lead line and navigation. Eighties and nineties of the 20th century, China has developed this new type of reflective material, the beginning effects can also be used, but then over time, glass bead reflective effect is getting worse, and finally can not be used the. The source, because the use of glass beads poor environment. Dust in the air in most parts of China large amount of particulate matter too much road dust bowl and roll, plus roads, airport runways measures inadequate or no cleaning, floor dust, Yu Xuetian are covered in mud as the road logo glass beads, the lack of time cleaning, bead dust, the reflective function is not surprising that eventually disappeared.
