by On August 13, the reporter learned from Sichuan Provincial Highway Planning, Survey, Design and Research Institute Co., Ltd. (hereinafter referred to as “Sichuan Provincial Highway Institute”) that after decades of dedicated research, the innovative technology of high toughness concrete developed by the company has made a breakthrough, and the automatic production line of high toughness concrete tunnel cable trench covers has been officially built..
It is reported that the cable trench cover plate made using this technology has the characteristics of good durability, lightweight, high strength, high toughness, green and low-carbon. Its thinnest thickness can reach up to 2cm, and its service life can exceed 100 years..
Recently, with the start-up of the newly built high toughness concrete tunnel cable trench cover plate automation production line, this latest generation of small prefabricated component automation production line in China has officially started..
It is understood that this production line is equipped with a uniform mixing equipment, a precise temperature control steam curing system, and a series of intelligent equipment such as 2 intelligent handling robots and 1 palletizing robot. With only 5 to 6 people, it can achieve the full process production of prefabricated components from raw material weighing, product forming to finished product packaging, which is highly intensive, efficient, and intelligent. There are 15 steam curing rooms built in the workshop, which can meet the steam curing needs of up to 12000 tunnel cable trench covers..
“This production line is designed for the special state of high toughness concrete and has been determined through matching and research. According to the relevant person in charge of Sichuan Provincial Highway Institute, the production line currently mainly produces cable trench covers.”..
Traditional tunnel cable trench cover plates are mostly made of reinforced concrete on-site, and traditional concrete raw materials are all sourced from natural resources. On the other hand, traditional reinforced concrete component products mostly adopt on-site prefabrication methods, with uneven quality, large volume, heavy weight, high labor demand for installation and replacement, and high post operation and maintenance costs..
“In view of this, the innovative technology of high toughness concrete that we have devoted ourselves to decades of independent research and development has a leading level in China.” The person in charge said that the new technology uses the dense skeleton accumulation theory and fiber reinforcement technology, selects high-quality machine-made sand, and through the optimization of grading design, can achieve high fluidity of concrete and ultra-high compressive tensile strength, fatigue resistance, toughness and durability of prefabricated components..
With the innovative technology of high toughness concrete, a new type of building material product, high toughness concrete prefabricated components, can be produced for various scenarios..
Taking the officially mass-produced tunnel cable trench cover plate on site as an example, it has good durability and anti-corrosion properties, with a service life of over 100 years, significantly reducing operation and maintenance costs, and achieving economic savings throughout the entire life cycle..
The self weight of the cover plate is only 18kg, and the thinnest thickness can reach 2cm, which is one fourth of that of traditional reinforced concrete cover plates. It is easy to handle, install, and maintain, and the number of workers can be reduced by half, improving the quality and efficiency of the project..
At the same time, the use of new technologies to produce cover plates has higher strength and toughness. By using ordinary mechanism sand, the compressive strength can be achieved at 120Mpa and the flexural tensile strength can be above 20Mpa. The ultimate flexural and flexural tensile strength can reach 3 to 4 times that of traditional cover plates, which is at the leading level in the industry; A 5kg weight of 1.5 meters high ball will not break after more than 7 impacts, and repeated handling and collision will not damage it..
Fixing Socket Cross Pin Nail Plate
In addition, there is no need to add steel bars to the cover plate, and.
