A method for filling and sealing pavement cracks with T-shaped grooves

Abstract

The invention relates to a pavement crack T-shaped slot filling and sealing method, and relates to a pavement crack filling and sealing method. According to the size of a pavement crack, the specification of a T-shaped slot is designed and slotting saw blades are selected, and the slotting saw blades include a middle circular saw blade group and two side circular saw blade groups; the slotting sawblades are assembled and installed in the middle of a tool holder shaft of a slotting machine; a liner pressing wheel device is prepared, a front pressing wheel and a rear pressing wheel are arrangedin a pressing wheel frame, and a hand push rod is fixed on the pressing wheel frame; the middle circular saw blade group of the slotting machine is aligned with the pavement crack and carries out slotting in the direction of the crack; the T-shaped slot is cleaned, and the surface is dried; a liner is put into the T-shaped slot, and the liner is pressed into the bottom end of the T-shaped slot bythe liner pressing wheel device; the T-shaped slot is injected with seam filler. Through the design of the slotting saw blades, the slot is changed to T-shaped slot, which is beneficial to ensure theplugging effect, the seam filler is saved, the construction cost is effectively controlled, and by cooperating with the liner pressing wheel device special for the T-shaped slot, the construction ismore convenient.

Description

technical field [0001] The invention relates to a method for treating pavement cracks, in particular to a method for filling and sealing pavement cracks with T-shaped grooves. Background technique [0002] Pavement cracks are one of the common road diseases. If not treated in time, pavement cracks will bear the infiltration of water on the road surface and the impact of passing vehicle loads, seriously affecting the service life of the pavement structure and driving comfort. [0003] In the filling and sealing construction of pavement cracks, the slotting and filling method is often used for small and medium cracks, that is, the slotting machine is used to slot along the cracks of the road surface, and then the joint filling material is injected to seal, and the joint filling material generally uses sealant , and the cross-sectional shape of the slot is generally rectangular or V-shaped, and the plugging effect of the rectangular slot is better, but it is generally suitable ...

AI Technical Summary

Problems solved by technology

[0002] Pavement cracks are one of the common diseases on roads. If they are not treated in time, pavement cracks will bear the infiltration of water on the road surface and the impact of passing vehicle loads, seriously affecting the service life of the pavement structure and driving comfort.

[0003] In the filling and sealing construction of pavement cracks, the slotting and filling method is often used for small and medium cracks, that is, the slotting machine is used to slot along the cracks of the road surface, and then the joint filling material is injected to seal, and the joint filling material generally uses sealant , and the cross-sectional shape of the slot is generally rectangular or V-shaped, and the plugging effect of the rectangular slot is better, but it is generally suitable for narrow road cracks. The slot width is generally 10-30mm. The depth is generally 15-30mm, because as the width of the slot increases, the construction cost of filling and sealing the rectangular slot also rises rapidly, while the V-shaped slot is generally suitable for wide cracks on the road surface. The width is generally above 20mm, but the sealing effect is not as good as that of rectangular slots

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