Method for carving groove in cement concrete pavement

Abstract

The invention discloses a method for carving a groove in cement concrete pavement. The method comprises the following steps that a pavement base layer is laid; a first cement concrete layer is laid on the pavement base layer, and then groove carving nets are laid in sequence and rolled through uniform force; after the first cement concrete layer is subjected to first solidification, a layer of PVC adhesives is sprayed on the upper end face of each groove carving net, and the PVC adhesives are not sprayed on strip piece bodies; a second cement concrete layer is laid on the first cement concrete layer, and the radian of the second cement concrete layer is adapted to the height of the strip piece bodies of the upper end face of the groove carving nets; and after the second cement concrete layer is subjected to first solidification, the strip piece bodies on the groove carving nets are removed, and pavement carved grooves are formed, polished, finished and washed through water, so that the formed pavement carved grooves are accurate and clear. The method is simple in construction, and the forming effect of the pavement carved grooves is good. By holding the groove carving nets fixing the strip piece bodies, anti-crack performance of the cement concrete pavement can be further improved, and the service life of the pavement is prolonged.

Description

technical field [0001] The invention relates to the technical field of road surface construction, in particular to a method for carving grooves on cement concrete pavement. Background technique [0002] At present, in the construction of cement concrete pavement, in order to meet the technical standards of friction coefficient of relevant specifications, it is necessary to form pockmarks or grooves of certain specifications on the surface of cement concrete pavement, so that the technical standard of friction coefficient of the pavement can be reached. At present, in the construction of cement concrete pavement, two methods are used to construct the pockmarked surface or groove of the pavement. One is to use a brush or steel brush to form on the surface of the concrete pavement after the cement concrete pavement is leveled and before the strength is formed. Pockmarked or grooved, another method is to use a special groove machine to form grooves on the surface of the road aft...

AI Technical Summary

Problems solved by technology

[0002] At present, in the construction of cement concrete pavement, in order to meet the technical standards of friction coefficient of relevant specifications, it is necessary to form pockmarks or grooves of certain specifications on the surface of cement concrete pavement, so that the technical standard of friction coefficient of the pavement can be reached. At present, in the construction of cement concrete pavement, two methods are used to construct the pockmarked surface or groove of the pavement. One is to use a brush or steel brush to form on the surface of the concrete pavement after the cement concrete pavement is leveled and before the strength is formed. Pockmarked or grooved, another method is to use a special groove machine to form grooves on the surface of the road after the strength of the cement concrete pavement is formed, referred to as "hard grooves". The friction coefficient of the pitted surface formed by brushing on the cement concrete surface often does not meet the specification requirements, which is not conducive to the safety of driving, and cannot meet the acceptance standards of the road surface. The gravel or sand in the concrete is hooked out, causing serious pits and pockmarks locally. After the road surface is opened to traffic, the parts where the pits and pockmarks are formed will be destroyed in a short time and have to be repaired

When the second method is used for "hard-grooving" construction, due to the frequent replacement of the saw blade of the grooving machine, the project cost will be greatly increased, and the project cost will increase greatly, which is uneconomical.

Images