A crtsiii type ballastless track self-compacting concrete rapid moving production and construction method
A self-compacting concrete and fast-moving technology, which is applied in the direction of tracks, track maintenance, roads, etc., can solve the problems of large waste of self-compacting concrete, large quality fluctuations, and low construction efficiency, so as to reduce the technical difficulty of preparation and construction, reduce the The loss rate is too high to achieve the effect of centralized factory
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Embodiment 1
[0025] The embodiment of the present invention provides a CRTSIII type ballastless track self-compacting concrete fast-moving production and construction method. When it is used for bridges or subgrade sections that can directly reach the construction site, the construction method and steps are as follows:
[0026] (1) First, the dry materials for self-compacting concrete are produced intensively in the factory, and the water-containing river sand is dried in a rotary kiln and packed in ton bags, and the crushed stone is also packed in ton bags; cement, pulverized coal, etc. Ash, finely ground slag powder, limestone powder, metakaolin, expansion agent, powder viscosity modifier and other materials are mixed into a uniform dry powder according to the designed ratio, and packed in ton bags; liquid water reducers are packed in ton barrels. After all the materials are produced, they will be transported by truck to the designated transit warehouse for storage. The warehouse can be p...
Embodiment 2
[0033] The embodiment of the present invention provides a CRTSIII type ballastless track self-compacting concrete fast moving production and construction method, when used in tunnels or large-span continuous beams across rivers or mountain streams without direct access to the construction site, the construction method And the steps are as follows:
[0034] (1) First, the dry material for self-compacting concrete is produced intensively in the factory, and the water-containing river sand is dried by a rotary kiln, and then the dried river sand, cement, fly ash, ground slag powder, and limestone are dried by a high-speed mixer Powder, metakaolin, expansion agent, powder viscosity modifier, powder water reducer and other materials are mixed into a uniform dry powder according to the design ratio, and packed in ton bags, and gravel is also packed in ton bags. After all materials are produced , transported by truck to the designated transit warehouse for storage, the warehouse can ...
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