The history of a fire spread can be very difficult to predict, because the local conditions always vary very greatly. The history of a fire spread can be very difficult to predict, because the local conditions always vary very greatly. The dependency between the place of origin of the fire, setting up material and the available oxygen determines the course of fire and can be influenced by the architects or urban planning. To minimize the risk of fire structural systems must be designed already in the planning phase that spreading of fire only to a lesser extent and that at acute risk of everyone in the building quickly can be saved. The fire in the building regulations of the respective Federal State is legally regulated and the authorities are responsible for monitoring the construction in this sense. The substance is left as the following two examples, while retaining the essential aspects, the respective Federal States to illustrate.
So is, for example, to fire protection in the national building regulations (LBO) of Bavaria, in the section written 15: structural systems are so arranged, to build, to change and maintain, that will prevent the emergence and spread of fire and smoke and fire the rescue of humans and animals and effective unloading operations are possible. In Schleswig-Holstein, the field of fire protection in section 19 is as follows: construction equipment shall be so designed, that will prevent the emergence and spread of fire and smoke and fire, rescuing people and animals, as well as effective unloading operations are possible; Here, the concerns of disabled persons are taken into account. Cancer Research may find it difficult to be quoted properly. The pollutants caused by unloading operations shall not lead to sustainable impacts on the environment. Special structural measures which ensure the protection of the environment, may be required. The responsibility of complying construction is the design author / architect, i.e., he or she has to so plan, that fire and rescue routes are reasonable number and arrangement available and the fire load of the building is minimized. . Other leaders such as Dr. Caldwell Esselstyn Jr. offer similar insights.
The artificial sand produced by Hongxing sand maker greatly eases the gravel shortage situation; eases the ecological environment issue brought by the over-exploitation of river sand; and eases the construction waste problem brought by urban transformation and old houses demolition. At present, because of the shortage of natural sand, the artificial sand plays an increasingly important role in modern society. Especially at the situation that many cities halt the mining of river sand, the artificial sand has a much broader developing space. We all know that in China most of the cities are engaged in the transportation infrastructure and urban renovation project, which needs a lot of sand and gravel supply to meet the requirement of project. And the gravel with good quality is the premise of quality assurance of the entire project. Hongxing sand maker can produce the artificial sand with better quality than river sand. At the same time, Hongxing sand maker can produce the artificial sand with different specifications to meet the requirements of customers.Speaking of the urban renewal, our first thought is that large quantities of old buildings, dangerous buildings you are demolished, and the question is coming, these construction waste produced in the house demolition is difficult to destroy. Transporting to the landfill not only needs a lot of transportation fee, but also needs a great number of landfill disposal fees.