At present in the world, the concrete as the most widely used, the largest amount of a building material, study the characteristics and properties of concrete can be more convenient application of concrete, give full play to the advantages of concrete. To make concrete better serve the coordinated development of human services and the environment, and further promote the concrete scientific and technological progress, in order to continue to explore the development approach and technological innovation to lay the foundation, we must master the strength of concrete, workability, durability and other aspects of strength performance. Concrete technology has entered the era of high-tech, increasing varieties, applications continue to expand, structural design methods are constantly improving. However, the specification is the structural design of the technical documents in the structural design plays an important guiding role, reflecting a country and regional technological and economic development level. Advanced technology, safe application, economic rationality, durability is to develop the basic principles of structural design specifications, the world are so. China and the United States and Europe, has a different social and historical background, so the concrete structure design methods and norms of development has gone through different processes.[url=http://doublesteelroller.com]Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery[/url]

Details are as follows: Precision laser leveling machine See Figure, the project floor for the double-layer steel laser leveling machine equipment with special bridge system see attached map, precision laser leveling machine is based on modern industrial plants, large shopping malls, warehouses and Other large area of ​​cement concrete floor on the ground quality, such as strength, flatness, level, such as the growing demand for the development. The use of Shenlong precision laser leveling machine leveling the cement concrete floor, compared with the conventional method of laying the ground quality is much better - ground smoothness and level of more than 3 times, density and intensity increased by 20% or more . While also improving work efficiency by more than 50%, and saving about 35% of the labor. In addition, it can be easily paved with high-strength concrete, low-slump concrete and fibrous concrete. The laser system is equipped with a variety of automatic control components, the frequency of 10 times per second real-time monitoring of leveling head level, to ensure that the laying of the ground surface flatness and level of effective control. At the same time, its strong vibrator vibration frequency of 3000 times / min, to ensure that the concrete vibrating dense, so that the entire injection of concrete matrix homogeneous, dense.
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