Edge bonding belt special for grouting for high-speed railway II type track board

Abstract

The invention relates to an edge bonding belt special for grouting for a high-speed railway II type track board, which is used for sealing mortar between the high-speed railway II type track board and a concrete base board. The edge bonding belt is characterized by comprising at least one waterproof venting layer (1) at the inner side and at least one sealing venting layer (2) at the outer side, wherein the waterproof venting layer (1) is jointed with the sealing venting layer (2). The edge bonding belt special for grouting for a high-speed railway II type track board has good venting performance and sealing performance. When in use, the edge bonding belt is fixed on the edge of the II type track board through a clamping board and a clamp so as to seal a gap between the track board and the base board; after the bedding mortar is solidified, the edge bonding belt can be taken down, thus the edge bonding belt is convenient to use, is used at any time along with sealing and filling, has low cost, saves time and labor, is beneficial to construction organization and arrangement and overcomes the defects of large quantity of building waste materials generated by using mortar for bonding edges, and the like. Except for effectively sealing the mortar, the edge bonding belt has good sealing performance and venting performance so as to guarantee the high filling degree of the bedding mortar.

Description

[0001] The application of this case is to apply for both an invention patent and a utility model patent for this invention on the same day. The name of the invention is the special edge banding for grouting of high-speed rail II track slabs. technical field [0002] The invention relates to special consumables used in the construction of high-speed railways, in particular to a special edge banding for grouting of type II track slabs of high-speed railways. Background technique [0003] At present, a hydraulic support layer (concrete base plate) must be laid on the roadbed or bridge girder during construction of a high-speed railway using Type II track slabs, and then Type II track slabs shall be laid thereon. Among them, mortar (also known as mortar cushion) is used to fill and adjust the height of the plate cavity between the hydraulic support layer (concrete base plate) and the type II track plate. The construction method is to fill the gap between the type II track slab a...

AI Technical Summary

Problems solved by technology

Before the grouting construction, in order to prevent the poured mortar from leaking from the edge between the bottom of the type II track slab and the concrete base plate, and ensure that the poured mortar can be filled in the cavity of the slab, the traditional method is to fill the cavity of the type II track slab Except for the position where the vent hole is set, the edge of the bottom of the basement is sealed with thicker cement mortar. After the cement mortar is solidified, the cushion mortar is poured; when the cushion mortar reaches a certain strength, the edge sealing The cement mortar is chiseled off, and all these mortar fragments must be collected and removed from the site. This construction method has a large workload, high cost, labor and time-consuming, and complicated process. It does not use construction organization, and is not conducive to environmental protection or green construction; And more importantly, because the cement mortar of the edge seal has almost no air permeability, it will affect the exhaust effect in the panel cavity during the pouring construction of the cushion mortar, making the exhaust uneven or not smooth, and then affecting the mortar on the panel. The filling degree in the cavity is not conducive to meeting the quality requirements of the actual project for the mortar cushion

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