A special impact-resistant polymer rapid repair material for rapid bridge deck paving

Abstract

The invention relates to an impact-resistant polymer rapid-repairing material special for quick bridge deck pavement. The impact-resistant polymer rapid-repairing material is formed by mixing of component A and component B, wherein the component A formed by mixing raw materials including, by weight, 60-65 parts of basic cementing materials, 0.2-0.3 part of a water reducing agent, 0.6-0.7 part of a thickening time control agent, 0.1-0.12 part of anti-crack fiber and 20-25 parts of quartz sand; the component B comprises, by weight, 10-15 parts of a toughing agent. The impact-resistant polymer rapid-repairing material has the advantages of high in thickening time, high in early strength, good in interfacial adhesive property and good in impact resistance.

Description

technical field [0001] The invention relates to a quick-repair material, in particular to an impact-resistant polymer quick-repair material specially used for rapid pavement of bridge decks. Background technique [0002] Bridge deck pavement is a bridge deck protection layer set up to protect the bridge deck from direct abrasion of the bridge deck by wheels or tracks, to protect the girder from rain erosion, and to disperse the concentrated load of the wheels. [0003] The damage of bridge deck pavement will significantly affect the function of the bridge, reduce the service life of the bridge, change the stress state of the bridge, and lead to structural damage of the bridge in severe cases. After the bridge deck pavement is damaged, it should be repaired in time to prevent the bridge deck pavement from directly bearing the effects of beam deformation, horizontal shear force, driving load, wheel impact and other environmental factors. Therefore, the bridge deck pavement Go...

AI Technical Summary

Problems solved by technology

[0004] At present, ordinary concrete is often used for bridge deck pavement in bridge maintenance projects in China, but the concrete has slow setting time, long curing time, and high traffic closure pressure, which cannot meet the basic requirements of rapid construction, rapid maintenance, and rapid traffic opening of bridge maintenance and reconstruction projects Requirements; In addition, the interface between ordinary concrete and old concrete has poor bonding performance and general impact resistance. When it is used for bridge deck pavement, fatigue damage occurs in a short period of time under the impact of vehicle cycles, which seriously reduces the service performance and life of the bridge.

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