Construction method and application of fabricated concrete road plate

A technology for concrete roads and construction methods, which is applied in the direction of roads, roads, special pavement, etc., can solve the problems of energy saving and emission reduction, a large amount of construction waste, long construction period, etc., and achieve easy professional organization, rapid assembly, and mold making simple effect

Pending Publication Date: 2020-10-13
中交二公局第六工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method for temporary road construction not only has a relatively long construction period, but also produces a large amount of construction waste when the road is demolished in the later stage, which not only causes waste of resources, but also does not meet the requirements of energy saving and emission reduction

Method used

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  • Construction method and application of fabricated concrete road plate
  • Construction method and application of fabricated concrete road plate
  • Construction method and application of fabricated concrete road plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to figure 1 A construction method for a prefabricated concrete road slab shown, comprising the following steps

[0047] Step 1: Prefabrication of concrete road slabs;

[0048] Step 2: foundation base construction;

[0049] Step 3: laying waterproof layer and sand cushion

[0050] After step 2 is completed, a waterproof layer is laid on the prepared foundation base, and after the waterproof layer is laid, a sand cushion is laid on the waterproof layer;

[0051] Step 4: Road Slab Installation

[0052] After step 3 is completed, the concrete road slab prefabricated in step 1 is transported to the paving site for assembly;

[0053] Step 5: Handle the board seams;

[0054] Step 6: Construction of earth shoulders and ancillary works.

[0055] In actual use, set the length and width of the precast concrete road slab according to the actual conditions of the construction section, transportation conditions, load level and the environment of the construction site, mak...

Embodiment 2

[0080] refer to figure 1 The construction method of a prefabricated concrete road slab shown is different from the first embodiment in that: the prefabricated concrete road slab in the first step is made by the following method

[0081] Step 1: Make a Template

[0082] Make a formwork with an aspect ratio of 1 to 3 for precast concrete road slabs, apply a release agent evenly on the formwork, and uniformly fix and connect two connecting hole molds at both ends of the formwork bottom along the radial direction;

[0083] The second step: install the steel skeleton of the precast concrete road slab in the formwork;

[0084] Step 3: Locate the hanger on the steel frame

[0085] Four hanging parts are respectively fixed on the upper and lower bottom surfaces of the steel frame, and the four hanging parts are evenly and symmetrically arranged on the steel frame;

[0086] The fourth step: concrete vibration;

[0087] Step 5: Lifting and health preservation of demoulding flap

[...

Embodiment 3

[0097] refer to figure 1 The construction method of a prefabricated concrete road slab shown is different from Embodiment 1 or 2 in that: the construction method of graded crushed stone is adopted in the construction of the foundation base in Step 2, and the mixture is made of 20-30mm Crushed stone, 10-20mm gravel, 5-10mm gravel and stone chips are mixed according to the ratio of 15:35:15:35, and the water content in the mixture is 5%-6%.

[0098] In actual use, in order to ensure the mixing quality, it is necessary to use the factory mixing method for centralized mixing, use the existing technology paver to pave the reference wire rope, vibratory roller and rubber wheel roller for rolling; strictly control the content of the mixture during construction. The amount of water is 5%-6% to ensure a better compaction effect of the graded crushed stone layer.

[0099] The construction quality of graded crushed stone is the key project of pavement installation and use, which directl...

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Abstract

The invention belongs to the technical field of concrete pavements, and particularly relates to a construction method and an application of a fabricated concrete road plate. According to the method, road construction is completed rapidly and neatly through six steps of prefabricating the concrete road plate, constructing a foundation base layer, laying a waterproof layer and a sand cushion layer,installing the road plate, treating plate seams and soil road shoulders and constructing auxiliary engineering. The road plate disclosed by the invention is prefabricated and produced in factories; the road plate is small in limitation of open-air weather, and a construction period is easy to guarantee; and the road plate is uniform in standard size, simple in mold manufacturing and convenient inconcrete pouring, and the road plate is suitable for various roadbeds with a certain bearing capacity, is suitable for temporary transportation roads and storage fields, and is also very suitable forroad construction of emergency rescue and disaster relief. All procedures are smoothly connected, construction equipment is centralized, waste is little during splicing and can be treated in a centralized mode, and an influence of field installation on the environment is very small.

Description

technical field [0001] The invention belongs to the technical field of highway concrete pavement, and in particular relates to a construction method and application of an assembled concrete road slab. Background technique [0002] At present, the country's infrastructure construction requirements meet the requirements of green construction and civilized construction, that is, to meet the "four sections (energy saving, land saving, water saving, material saving)-environmental protection" of green construction, "evaluation standards for green construction" and "guidelines for green construction". "Rules" relevant requirements. [0003] In the construction of highway projects, one-time cast-in-situ concrete is mostly used for traditional temporary roads and fields. Using this method for temporary road construction not only has a relatively long construction period, but also produces a large amount of construction waste when the road is demolished in the later stage, which not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06E01C9/08
CPCE01C3/06E01C9/086
Inventor 曹鹏单宏伟李皓赵永鹏刘建伟李盈博艾其旭
Owner 中交二公局第六工程有限公司
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