阅读说明：本技术 一种透水混凝土市政道路施工方法 (pervious concrete municipal road construction method ) 是由 方晨炜 陈小刚 熊毅 陈邦 张晗嘉 向俊晨 于 2019-09-02 设计创作，主要内容包括：本发明涉及道路工程施工技术领域,尤其涉及一种透水混凝土市政道路施工方法。包括以下步骤：S1,施工准备,具体包括,透水混凝土的制备、人员准备、场地准备、施工面层作业条件准备、路面测量设计；S2,安装路缘石作为模板；S3,采用分块隔仓式进行摊铺物料压实；S4,对浇筑完成的透水混凝土面进行保湿养护；S5,所述透水混凝土路面浇筑完成后进行路面分割缝切割；S6,所述透水混凝土面层施工后涂刷表面保护剂。本发明实施例通过施工采用分块隔仓式进行摊铺物料,施工简单,更利于在大面积市政道路施工。(The invention relates to the technical field of road engineering construction, in particular to a construction method for pervious concrete municipal roads, which comprises the following steps of S1, construction preparation, specifically comprising pervious concrete preparation, personnel preparation, site preparation, construction surface layer operation condition preparation and road surface measurement design, S2, installation of a curb as a template, S3, compaction of paving materials in a partitioning bin mode, S4, moisture preservation and maintenance of the poured pervious concrete surface, S5, cutting of road surface partitioning slots after pouring of the pervious concrete surface, and S6, wherein a surface protective agent is coated on the paved materials in a partitioning bin mode after the construction of the pervious concrete surface layer.)

1, kinds of pervious concrete town road construction method, characterized by, including the following steps:

s1, construction preparation, specifically comprising permeable concrete preparation, personnel preparation, site preparation, construction surface layer operation condition preparation and pavement measurement design;

s2, installing a curb as a template; after paying off is finished according to design, excavating an edge stone foundation groove, wherein the excavation width is 100mm wider than that of an edge stone foundation, paving a C15 concrete cushion layer with the thickness of 100mm, and encapsulating the outer side of a curb by C20 fine stone concrete;

s3, compacting the paved material in a partitioned bin mode in construction, wherein the paving coefficient of the material is 1.1;

s4, moisturizing and maintaining the poured pervious concrete pavement; specifically, covering color strip cloth for cooling after pouring is completed for 30min, and maintaining for 7-14 d;

s5, cutting the pavement dividing seams after the pervious concrete pavement is poured, wherein the width of the contraction seams is 10-15 mm, the depth of the contraction seams is 50mm, and deformation seams are arranged at intervals of 5m and are small expansion seams with the width of 10-15 mm;

and S6, coating a surface protective agent after the construction of the pervious concrete pavement.

2. The kinds of pervious concrete municipal road construction method according to claim 1, characterized in that in the step S1, the pervious concrete comprises, by weight, 100 parts of cement, 90-120 parts of water, 15-30 parts of fiber brucite, 10-20 parts of basalt fiber, 8-15 parts of ferric oxide, 12-35 parts of carbamate, 8-16 parts of melamine resin, 5-20 parts of acrylate, 9-18 parts of urea resin, and 8-15 parts of polycarboxylic acid water reducer.

3. The pervious concrete municipal road construction method according to claim 2, wherein in the step S1, the pervious concrete preparation comprises the steps of:

s11, stirring half weight of the cement, water, fiber brucite, carbamate and polycarboxylic acid water reducing agent to be uniformly mixed, wherein the stirring temperature is 90-120 ℃;

s12, adding the basalt fibers, the ferric oxide and the melamine resin into the mixture obtained in the step S11, and uniformly stirring at the temperature of 80-100 ℃ under the stirring pressure of 1.5-2 atmospheric pressures;

s13, adding the remaining weight of cement, acrylate and urea-formaldehyde resin into the mixture obtained in the step S12, and uniformly stirring at 100-120 ℃ under the stirring pressure of 1-1.5 atmospheric pressures.

Technical Field

The invention relates to the technical field of road engineering construction, in particular to a construction method of pervious concrete municipal roads.

Background

With the development of socio-economic and the progress of city construction, the earth surface of modern cities is gradually covered by reinforced concrete building and impervious pavement, compared with natural soil, the modern earth surface brings series problems to cities, which mainly shows the following aspects:

(1) the impervious road surface has hindered the infiltration of rainwater for the replenishment of rainwater to groundwater is blocked, and in addition groundwater's excessive extraction, urban ground easily produces and sinks.

(2) The traditional compact road surface has large tire noise. When the vehicle runs at high speed, air is pressed between the tire and the road surface when the tire rolls in, and when the tire rolls over, the air rapidly expands to generate noise, which is particularly obvious in rainy days, and influences the life and work of residents.

(3) Traditional urban road surface is waterproof construction, and the rainwater is got rid of through the way table, and the earial drainage ability is limited, and when meetting heavy rain or torrential rain, the rainwater collects on the road surface easily, concentrates on motor vehicle and bicycle way in a large number, leads to road surface ponding on a large scale.

(4) The impervious pavement reduces the humidity of the urban air and accelerates the formation of the urban heat island effect.

(5) The impervious pavement is a 'dead ground', can affect the ecological system of the ground, can prevent the normal circulation of water ecology, breaks the balance of the urban ecological system and affects the normal growth of vegetation.

In recent years, the pervious concrete is mainly used in lighter traffic places such as fields, pedestrian streets and parking lots, has a strong help to solve the practical problems of road surface water accumulation, urban waterlogging and the like, and reduces the pressure of a municipal drainage system.

Disclosure of Invention

In order to overcome the problems in the prior art, the embodiment of the invention provides construction methods for the pervious concrete municipal road, which reduce the economic cost of the pervious concrete road to a certain extent by and are suitable for large-area construction.

method for constructing a pervious concrete municipal road, which comprises the following steps:

s1, construction preparation, specifically comprising permeable concrete preparation, personnel preparation, site preparation, construction surface layer operation condition preparation and pavement measurement design;

s2, installing a curb as a template; after paying off is finished according to design, excavating an edge stone foundation groove, wherein the excavation width is 100mm wider than that of an edge stone foundation, paving a C15 concrete cushion layer with the thickness of 100mm, and encapsulating the outer side of a curb by C20 fine stone concrete;

s3, compacting the paved material in a partitioned bin mode in construction, wherein the paving coefficient of the material is 1.1;

s4, moisturizing and maintaining the poured pervious concrete pavement; specifically, covering color strip cloth for cooling after pouring is completed for 30min, and maintaining for 7-14 d;

s5, cutting the pavement dividing seams after the pervious concrete pavement is poured, wherein the width of the contraction seams is 10-15 mm, the depth of the contraction seams is 50mm, and deformation seams are arranged at intervals of 5m and are small expansion seams with the width of 10-15 mm;

and S6, coating a surface protective agent after the construction of the pervious concrete pavement.

Wherein in the step S1, the water permeable coagulation comprises the following components in parts by weight: 100 parts of cement, 90-120 parts of water, 15-30 parts of fiber brucite, 10-20 parts of basalt fiber, 8-15 parts of ferric oxide, 12-35 parts of carbamate, 8-16 parts of melamine resin, 5-20 parts of acrylate, 9-18 parts of urea resin and 8-15 parts of polycarboxylic acid water reducer.

Wherein, in the step S1, the pervious concrete preparation comprises the following steps:

s11, stirring half weight of the cement, water, fiber brucite, carbamate and polycarboxylic acid water reducing agent to be uniformly mixed, wherein the stirring temperature is 90-120 ℃;

s12, adding the basalt fibers, the ferric oxide and the melamine resin into the mixture obtained in the step S11, and uniformly stirring at the temperature of 80-100 ℃ under the stirring pressure of 1.5-2 atmospheric pressures;

s13, adding the remaining weight of cement, acrylate and urea-formaldehyde resin into the mixture obtained in the step S12, and uniformly stirring at 100-120 ℃ under the stirring pressure of 1-1.5 atmospheric pressures.

The embodiment of the invention provides a construction method of pervious concrete municipal roads, materials are paved in a blocking and separating bin mode through construction, the construction is simple, the construction on large-area municipal roads is more facilitated, the preparation of the pervious concrete is reasonable in proportion, and the preparation cost of the pervious concrete is reduced to a certain extent by .

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the technical description of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings according to the drawings without any inventive exercise.

FIG. 1 is a schematic flow chart of a construction method of pervious concrete municipal roads according to an embodiment of the invention;

FIG. 2 is a schematic flow chart of a method for preparing pervious concrete according to an embodiment of the present invention;

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete description of the technical solutions of the embodiments of the present invention will be given below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of of the present invention, rather than all embodiments.

FIG. 1 is a schematic flow chart of a construction method of pervious concrete municipal roads, which comprises the following steps as shown in FIG. 1:

s1, construction preparation, specifically comprising permeable concrete preparation, personnel preparation, site preparation, construction surface layer operation condition preparation and pavement measurement design;

s2, installing a curb as a template; after paying off is finished according to design, excavating an edge stone foundation groove, wherein the excavation width is 100mm wider than that of an edge stone foundation, paving a C15 concrete cushion layer with the thickness of 100mm, and encapsulating the outer side of a curb by C20 fine stone concrete;

s3, compacting the paved material in a partitioning and bin-separating manner in the construction process; the material loose coefficient is 1.1; spreading the mixture, uniformly pushing, leveling, compacting and collecting the surface of the water-permeable concrete surface layer;

s4, moisturizing and maintaining the poured pervious concrete pavement; specifically, covering color strip cloth for cooling after pouring is completed for 30min, and maintaining for 7-14 d;

s5, cutting the pavement dividing seams after the pervious concrete pavement is poured, wherein the cutting of the pavement dividing seams is carried out 24 hours after the pervious concrete pavement is poured, the width of a contraction joint is 10-15 mm, the depth of the contraction joint is 50mm, and a deformation joint is provided with small expansion joints with the width of 10-15 mm every 5 m;

and S6, coating the surface protective agent after the construction of the pervious concrete surface layer, wherein is generally coating the surface protective agent in 7 days.

The construction method comprises the steps of preparing pervious concrete according to a prepared material proportion, establishing a pervious concrete pavement construction team, carrying out technical training of by professionals and carrying out related training records by the construction team personnel, arranging a material stacking field, a stirring field, a warehouse and fire-fighting facilities, enabling the material stacking to meet the requirements of stirring type, configuring a rainproof and moistureproof material stacking field on a construction site, enabling materials to be stacked according to marks and not to be thrown randomly during loading, unloading and carrying, cleaning a base layer before the pervious concrete pavement construction, carrying out water retention on the surface of the treated base layer after rough and waterless maintenance and keeping in a wet state, measuring and marking the width, elevation and drainage gradient of a pavement according to the pavement design requirements, mounting a curb as a template, carrying out comprehensive inspection and acceptance on the height and stability conditions of the curb after the curb is mounted, carrying out water retention construction after maintenance is qualified, carrying out pervious concrete construction, pouring a foundation layer after the pavement is tested and laid, carrying out leveling construction according to the design requirements, carrying out construction of 3d pavement, carrying out construction by a partitioning construction, carrying out construction by a cabin type construction, carrying out maintenance and maintenance on the pavement after the pavement is carried out maintenance, carrying out a low-spreading, carrying out a wet-spreading process, carrying out process on a wet-spreading process, carrying out a wet-spreading process, carrying out a wet-spreading process, carrying out a process, carrying out a.

The embodiment of the invention provides a construction method of pervious concrete municipal roads, materials are paved in a partitioned bin type through construction, the construction is simple, and the construction on large-area municipal roads is facilitated;

, in the S1 step, the components of the permeable concrete comprise, by weight, 100 parts of cement, 90-120 parts of water, 15-30 parts of fiber brucite, 10-20 parts of basalt fiber, 8-15 parts of ferric oxide, 12-35 parts of carbamate, 8-16 parts of melamine resin, 5-20 parts of acrylate, 9-18 parts of urea resin and 8-15 parts of a polycarboxylic acid water reducer.

, the step S1 is that the pervious concrete preparation comprises the following steps:

s11, stirring half weight of the cement, water, fiber brucite, carbamate and polycarboxylic acid water reducing agent to be uniformly mixed, wherein the stirring temperature is 90-120 ℃;

s12, adding the basalt fibers, the ferric oxide and the melamine resin into the mixture obtained in the step S11, and uniformly stirring at the stirring temperature of 80-100 ℃ and under the stirring pressure of 1.5-2 atmospheric pressures;

s13, adding the remaining weight of cement, acrylate and urea-formaldehyde resin into the mixture obtained in the step S12, and uniformly stirring at 100-120 ℃ under the stirring pressure of 1-1.5 atmospheric pressures.

For the purpose of further clarifying the technical scheme of the invention, for example, preparing pervious concrete, wherein the weight of the components of the pervious concrete is 100 parts of cement, 90 parts of water, 15 parts of fiber brucite, 10 parts of basalt fiber, 8 parts of ferric oxide, 12 parts of carbamate, 8 parts of melamine resin, 5 parts of acrylate, 9 parts of urea-formaldehyde resin and 8 parts of polycarboxylic acid water reducing agent, stirring half weight of the cement, the water, the fiber brucite, the carbamate and the polycarboxylic acid water reducing agent to be uniformly mixed, wherein the stirring temperature is 90 ℃, adding the basalt fiber, the ferric oxide and the melamine resin into the mixture obtained in the previous step, stirring uniformly, wherein the stirring temperature is 80 ℃ and the stirring pressure is 1.5 atmospheric pressures, adding the rest weight of the cement, the acrylate and the urea-formaldehyde resin into the mixture obtained in the previous step, stirring uniformly, wherein the stirring temperature is 100 ℃ and the stirring pressure is 1 atmospheric pressure, and after the preparation of the pervious concrete is completed, the construction steps provided by the embodiment of the invention are carried out;

, for example, preparing pervious concrete, wherein the pervious concrete comprises, by weight, 100 parts of cement, 100 parts of water, 20 parts of fiber brucite, 15 parts of basalt fibers, 10 parts of ferric oxide, 20 parts of carbamate, 10 parts of melamine resin, 15 parts of acrylate, 15 parts of urea-formaldehyde resin and 10 parts of polycarboxylic acid water reducer, half of the weight of the cement, the water, the fiber brucite, the carbamate and the polycarboxylic acid water reducer are stirred to be uniformly mixed, the stirring temperature is 100 ℃, the basalt fibers, the ferric oxide and the melamine resin are added into the mixture obtained in the step and are uniformly stirred, the stirring temperature is 90 ℃ and the stirring pressure is 1.8 atmospheric pressures, the residual weight of the cement, the acrylate and the urea-formaldehyde resin are added into the mixture obtained in the step and are uniformly stirred, the stirring temperature is 110 ℃ and the stirring pressure is 1.2 atmospheric pressures, and construction steps provided by the embodiment of the invention are carried out after the preparation of the pervious concrete is completed;

, for example, preparing pervious concrete, wherein the pervious concrete comprises, by weight, 100 parts of cement, 120 parts of water, 30 parts of fiber brucite, 20 parts of basalt fibers, 15 parts of ferric oxide, 35 parts of carbamate, 16 parts of melamine resin, 20 parts of acrylate, 18 parts of urea-formaldehyde resin and 15 parts of polycarboxylic acid water reducer, half of the weight of the cement, the water, the fiber brucite, the carbamate and the polycarboxylic acid water reducer are stirred to be uniformly mixed, the stirring temperature is 120 ℃, the basalt fibers, the ferric oxide and the melamine resin are added into the mixture prepared in the step, the stirring temperature is 100 ℃, the stirring pressure is 2 atmospheric pressures, the rest weight of the cement, the acrylate and the urea-formaldehyde resin are added into the mixture prepared in the step, the stirring temperature is 120 ℃, the stirring pressure is 1.5 atmospheric pressures, and construction steps provided by the embodiment of the invention are carried out after the preparation of the pervious concrete;

the embodiment of the invention provides a construction method of pervious concrete municipal roads, materials are paved in a blocking and separating bin mode through construction, the construction is simple, the construction on large-area municipal roads is more facilitated, the preparation of the pervious concrete is reasonable in proportion, and the preparation cost of the pervious concrete is reduced to a certain extent by .

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.