An all-in-one machine for leveling and texture of ultra-high toughness cement-based composite materials for road engineering and its working method

Abstract

The invention relates to an ultrahigh-toughness cement-based composite material texture leveling all-in-one machine for road engineering and a working method thereof, and belongs to the field of cement concrete processing machineries, the ultrahigh-toughness cement-based composite material texture leveling all-in-one machine comprises a bottom frame and a main body frame located on the bottom frame, and steel wheels are arranged at four corners of the bottom frame; wherein a hopper, a leveling roll shaft and an embossing roll shaft are sequentially arranged on the main body frame along the advancing direction, an ultrahigh-toughness cement-based composite material is placed in the hopper, the surfaces of the leveling roll shaft and the embossing roll shaft are respectively coated with a polytetrafluoroethylene coating, and bulges are arranged on the surface of the embossing roll shaft and are used for embossing and grooving the surface of the newly leveled ultrahigh-toughness cement-based composite material. The all-in-one machine is good in leveling effect, the surface of a leveled material cannot be damaged or bumpy or in a hornet's nest shape, embossing is conducted in a groovepressing mode, fibers in concrete cannot be damaged, and the toughness and crack control capacity of the ultrahigh-toughness cement-based composite material are guaranteed.

Description

technical field [0001] The invention relates to a super-high toughness cement-based composite material leveling and texture integrated machine for road engineering and a working method thereof, belonging to the technical field of cement concrete processing machinery. Background technique [0002] In the 1990s, due to the ultra-high toughness, ductility and crack control ability of ultra-high toughness cement-based composite materials compared with ordinary concrete, they were gradually applied to engineering. Ultra-high toughness cement-based composite materials mainly use cement, mineral admixtures, and quartz sand with an average particle size of no more than 0.15mm as the matrix, and use PE fibers (polyethylene fibers) or PVA fibers (polyvinyl alcohol fibers) as reinforcements It is made by mixing with admixtures. [0003] The addition of fibers, the use of thickeners, and the lack of coarse aggregates lead to a high consistency and viscosity of the ultra-high toughness ...

AI Technical Summary

Problems solved by technology

[0003] The addition of fibers, the use of thickeners, and the lack of coarse aggregates lead to a high consistency and viscosity of the ultra-high toughness cement-based composite material matrix, and because of the lack of suitable construction equipment, this makes the freshly mixed The surface of ultra-high toughness cement-based composites is difficult to level

At present, most of the existing construction leveling methods of ultra-high toughness cement-based composite materials are manual leveling or ordinary concrete leveling machines for leveling, which leads to unsatisfactory leveling effects. Due to improper leveling methods, the interior of the material enters Air, with the use of the material, the surface of the material appears damaged, uneven, showing a hornet's nest, such as figure 1 As shown, it seriously affects the appearance and ultra-high toughness and crack control ability of ultra-high toughness cement-based composites (such as figure 2 Shown) and other excellent performance, which has become one of the reasons that limit the large-scale use of ultra-high toughness cement-based composites

[0004] In addition, currently in road engineering construction, the anti-skid construction methods of cement concrete pavement are mainly napping and groove cutting, but when napping is used for construction, the fibers in the concrete are easy to be hooked out during the construction process, resulting in ultra-high toughness cement-based composite materials. The reduction of fiber reinforcement and toughening will affect the ultra-high toughness and crack control ability of the material; most of the fibers will be cut off when the "hard groove" is used for construction, which will also affect the ultra-high toughness of cement-based composite materials. Excellent performance, in addition, considering the high cost of the saw blade material of the notching machine, the project cost is high and uneconomical

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