On April 26, the reporter entered the C area of ​​the Shanghai World Expo Park for the first time. Although the front is not far from the Belarusian pavilion, the reporter did not follow the flow immediately, but began to carefully observe the road under the foot: the asphalt pavement is flat and firm, and it seems that there is no difference with the road to see the difference - if not seen by reporters before The information, at the root, can't see the road that is "not amazing", it turned out to be turned from garbage! It turned out that most of the former Expo site was an old factory building, and a large amount of abandoned construction waste was formed during the demolition. Based on the concept of “turning waste into treasureâ€, engineers use technological innovation to digest these construction wastes into high-quality roadbed materials. Today, more than 60% of the concrete and brick used in the pavement of the Expo Park are made of construction waste and steel slag, which not only saves the cost, but also saves resources and improves the bearing capacity of the roadbed. The most common road in the Expo Park is not only the magical thing: it will breathe, it will be permeable, it will not accumulate water, the driving will not slip, there will be no water mist and splashing water, even if it encounters the common rainy days in Shanghai, Tourists can walk in the rain and can not wet shoes. The mystery is that there is a magical “outer coat†on the road in the Expo site. The new core of the Expo uses the new type of drainage asphalt as the main form of pavement structure. It is paved with water-permeable sidewalks. Water is formed on the surface to improve walking comfort, and it can increase groundwater recharge, conserve water, and promote the growth of street trees and greenbelts. In the summer, rainwater passes through the pavement layer, which can take away the heat of the road surface and alleviate the urban heat island effect. The tour has not yet begun, and on the most easily overlooked details, the reporter feels the charm of the “green energy saving†of the Expo. Looking at the Expo site, “zero emissionsâ€, “zero energy consumptionâ€, “zero pollutionâ€... these ideas that have remained at the theoretical stage for a few years ago have now turned into reality and presented to the world in perfection. It may start from here, "fly into the homes of ordinary people" and change human life. As the largest single project in the Expo Park, the Expo Axis is the main entrance of the park and a three-dimensional traffic hub of the central pedestrian. It is about 1045 meters long and 110 meters wide. It is the most important landmark in the park and the most densely populated place for tourists. The air conditioning system of this large building does not need electricity! Because it uses "green energy" --- Huangpu River natural water source and ground source, providing all air-conditioning energy, without the use of cooling towers, boiler rooms, electricity, gas, oil and other traditional air-conditioning means, not only lower than the average air-conditioning system It can also reduce pollution and reduce energy consumption.