Method for constructing roadbed of reinforced concrete pavement of road

Abstract

The invention discloses a method for constructing roadbed of a reinforced concrete pavement of a road. The method comprises the following steps of: firstly excavating a roadbed foundation trench to a design depth, and levelling, rolling and compacting on the original soil; paving steel slag in two layers, wherein the thickness of each layer is 95-105mm; then mixing the steel slag and mountain flour in the weight ratio of 6:4, stirring to be uniform, and paving in two layers, wherein the thickness of each layer is 95-105mm, and the particle size of the steel slag is less than or equal to 40mm; and then mixing the steel slag, the mountain flour and cement in the weight ratio of 3:5:2, stirring to be uniform, paving in two layers, rolling and compacting, wherein the thickness of each layer is 95-105mm, the grain size of the steel slag is less than or equal to 40mm, and the bottom layer of the pavement is formed; and finally binding reinforcing bars, erecting moulds and pouring a concrete pavement, and then uniformly paving a water granulated slag layer with the thickness of 20-25mm on the pavement for health promotion. By applying the method disclosed by the invention, the construction period is short, the construction cost is low, and the construction quality is good; besides, waste products can be utilized, and the pollution of stacked industrial waste residue to the environment can be reduced.

Description

technical field [0001] The invention relates to a roadbed construction method of a reinforced concrete road surface of a highway. Background technique [0002] At present, the subgrade construction method under the reinforced concrete road surface of the highway is to first excavate the subgrade groove to the design depth, level and compact the original soil, and then pave two layers of lime-soil road base, wherein the weight of lime and clay in the lime-soil road base The number ratio is 3:7, and the thickness of each layer is 150mm; then pave the bottom layer of gravel pavement with a thickness of 200mm, and then bind the steel bars and formwork after rolling and compacting, and finally pour the concrete pavement; then cover it with straw bags or plastic film bags Keep healthy on the road. There are deficiencies in this construction method at present: 1) the particle size of lime and clay particles used when paving the lime-soil road base must be less than 5mm, which need...

AI Technical Summary

Problems solved by technology

There are deficiencies in this construction method at present: 1) the particle size of lime and clay particles used when paving the lime-soil road base must be less than 5mm, which needs to be manually sieved and then stirred evenly in a 3:7 ratio. The construction process is loaded down with trivial details. The labor investment is large, the construction period is long, and the clay used needs to be spread in a loose shape for drying, which requires a stacking site and drying time, which prolongs the construction period

2) The pavement paved by this method uses straw bags or plastic films for health maintenance. The straw bags are prone to debris, and the plastic film is easy to break, polluting the environment and cannot be reused.

3) With the increasingly serious loss of land resources, the purchase channels of clay are not smooth and the cost is high