Novel CA (cement asphalt) mortar grouting bag

Abstract

The invention provides a novel CA (cement asphalt) mortar grouting bag which is a rectangular bag made of polypropylene non-woven fabrics. The novel CA mortar grouting bag comprises material inlets, elastic elements, sealing parts, bend grouting pipes and retaining plates. The material inlets are arranged on opposite side surfaces of the grouting bag. One ends of the sealing parts are fixed at the positions where the material inlets are located, and the other ends of the sealing parts are connected with the bend grouting pipes. The plurality of elastic parts are evenly distributed in the grouting bag, two ends of the elastic parts are fixed on the upper surface and the lower surface of the grouting bag respectively, and the natural lengths of the elastic parts are smaller than the distance between a track plate and a concrete base. The retaining plates are fixed at the vertex angle positions of all the side surfaces of the grouting bag. The novel CA mortar grouting bag has the advantages of being simple in structure and low in cost, being capable of ensuring sufficient grouting of CA mortar, closely clinging to the track plate and the concrete base, and improving the grouting effect and the construction quality.

Description

technical field [0001] The invention relates to a novel CA mortar filling bag. Background technique [0002] In recent years, the construction of high-speed railway has developed rapidly, and CA mortar is the core technology of high-speed railway CRTSⅢ slab ballastless track. CA mortar is composed of cement, emulsified asphalt, fine aggregate, water and various admixtures, and is a new type of organic-inorganic composite material formed through the joint action of cement hydration hardening and asphalt demulsification. [0003] CA mortar is mainly filled between the track slab with a thickness of about 50mm and the concrete base. Its function is to support the track slab, buffer the load of high-speed trains and absorb shocks. It has a significant impact on the comfort and safety of train operation and the cost of operation and maintenance. [0004] Since CA mortar needs to be filled between the track slab and the concrete base, CA mortar filling bags are generally used as...

AI Technical Summary

Problems solved by technology

[0004] Since CA mortar needs to be filled between the track slab and the concrete base, CA mortar filling bags are generally used as auxiliary tools for filling CA mortar. However, in traditional CA mortar filling bags, the feed inlet is usually set on the upper and lower surfaces of the filling bag. This design is not convenient in practical application; in addition, the traditional CA mortar perfusion bag still has problems such as insufficient perfusion and uncertain perfusion shape, so it is urgent for technicians to further improve the CA mortar perfusion bag

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