KR101252124B1 - Package road with cement zero binder having a function of water permeability using paper mill ludge and coarsening ratio and thereof packaging method - Google Patents

Abstract

PURPOSE: A porous paved road with a cement zero binder using pulp sludge and assembly rate, and a paving method thereof are provided to induce reactivity of existing soil by using the pulp sludge as a binder instead of cement to prevent soil from being contaminated by alkali components eluted from cement due to rain water. CONSTITUTION: A porous paved road with a cement zero binder using pulp sludge and assembly rate comprises a bottom surface(100), a basic layer(200), a dynamic layer(300), and a surface layer. The basic layer is comprised of 10-20mm of bottom ash. The dynamic layer is obtained by mixing a bituminous material or cement with one or more than two materials from gravel, sand, fine grained soil, and rubble. The surface layer is obtained by mixing 70-80wt% of mixture, in which white soil cement and stone powder is mixed in a weight ratio of 6:4, with 20-30wt% of pulp sludge.

Description

PACKAGE ROAD WITH CEMENT ZERO BINDER HAVING A FUNCTION OF WATER PERMEABILITY USING PAPER MILL LUDGE AND COARSENING RATIO AND THEREOF PACKAGING METHOD}

The present invention relates to a cement zero binder permeable pavement using pavement sludge and granulation rate, and a method for paving the same. More specifically, the present invention is a pavement for sidewalks or bicycles, including cement, blast furnace slag fine powder fly ash, etc. Without using hydraulic materials, the paper heat treated paper sludge is made to be permeable using the coefficient of friction according to the potential reactivity and particle size of the surface material and the mechanical characteristics of the material. Cement using improved paper sludge and assembly rate to prevent soil pollution due to the hydrogen ion concentration of cement and to prevent environmental pollution and reduce resource waste by recycling various wastes generated in the industry as road pavement materials. Zero Binder Permeable Pavement and Its Pavement Method A.

Permeable concrete (pitcher cone), which is used as a conventional road paving material, installs an auxiliary base layer using aggregate having a particle size of 20mm-25mm, installs concrete having a predetermined particle size of about 10mm, and then sprays 1mm-3mm silica sand and epoxy The road has been paved through the process of forming a protective film with resin.

The base and surface layers of the permeable concrete, which are constructed in this way, are commissioned and produced at the ready-mixed concrete plant, and the construction method of laying and compacting on the site is applied.

At this time, in general, the binding binder used in the permeable packaging is a portland cement by the hydration reaction with water to produce a hydration product such as C-S-H (calcium silicate hydrate) to express the strength.

However, cement used as the most inexpensive and important building and civil engineering material in the modernization process of the industry has been applied to all domestic and foreign industrial fields in accordance with the Kyoto Protocol in 2005, following the 1992 Rio Protocol, the 1997 Kyoto Protocol, and the 2005 Kyoto Protocol. In order to reduce greenhouse gas emissions, the cement industry is trying to reduce carbon dioxide by lowering the firing temperature or by using mixed cements such as fly ash and blast furnace slag. Korea's development is constantly being studied.

ZERO Concrete was established in 1978 as a method of inducing a polymerization reaction using kaolite and alkali activator. Since then, research has been conducted in various aspects, but it is active to date due to manufacturing problems and economic feasibility. There is no research.

Among the cement substitutes, the most basic considerations are the ease of supply of materials and the content of silica and alumina, which are hydration-reactive components of the reaction materials, and the representative materials having such material characteristics are those which are generated after combustion in thermal power plants. to be.

However, in order to activate such fly ash and use it as a reactive inorganic binder, it is typical to utilize a reaction that forms a Si-O-Al-O bond of a polymer through a chemical reaction with a Si-Al mineral in a high alkali state. In order to induce a chemical reaction, activation should be induced by an alkali activator composed of an alkali stimulant such as NaOH and KOH and sodium silicate.

However, these alkali-activated polymerization reactions require a small amount of water to secure fluidity, but need to be formulated like ordinary cement concrete. The use of such mixtures lowers the alkalinity and thus reduces the strength expression. There is a problem that causes contamination.

In addition, the conventional permeable packaging material had problems such as walking performance, cracks due to dry shrinkage and performance degradation due to pore blocking.

In addition, according to the report of October 24, 2012, as a result of requesting the Seoul Industrial Commerce Agency (Seoul Intellectual Property Center) to confirm the prior art in relation to the present invention, registered patent No. 0490731, registered patent No. 0121029, Japanese Laid-Open Patent Publication No. 2006-241803 and the like have been identified as related technologies.

By the way, Patent No. 0490731 discloses a method for manufacturing waste material sludge powdered into 20-50 mesh using civil engineering and building materials, but it is described in the report that similarities were not found due to different technical characteristics. No. 0121029 also discloses only one kind of waste materials for the manufacture of eco-green packaging, and it can be confirmed through the report that there is progress because no similarity is found. In the case of Japanese Patent Laid-Open No. 2006-241803 Edo only showed the inclusion of paper sludge as a raw material for absorbent packaging, but it was confirmed that it was reported to be progressive because it did not show key technical features such as assembly rate.

As described above, although the cement zero binder permeable pavement using the papermaking sludge and the assembly rate according to the present invention and the pavement method thereof, there is a need to develop a new concept pavement with a special function despite the existence of many prior arts. It was confirmed.

The present invention was created in view of the above-described problems in the prior art, and in order to solve this problem, instead of the cement used in the conventional permeable packaging material using paper sludge as a binder to induce the reactivity of the existing soil in the cement due to excellent The purpose is to provide a pavement that can prevent soil contamination by eluting alkali component.

In addition, another object of the present invention is to prevent waste of resources and reduce costs by utilizing various wastes generated throughout the industry in the road paving in terms of environmental pollution prevention and resource recycling.

The present invention as a means for achieving the above object, in the pavement for walking or bicycle on which the base layer 200, the dynamics layer 300, the surface layer 400 is sequentially formed on the floor surface 100 which is a roadbed; The base layer 200 is formed of a bottom ash having a particle size of 10-20 mm; The dynamic layer 300 is made by mixing any one or two or more of gravel, sand, fine grain, crushed stone with cement or bitumen material; The surface layer 400 is 20-30% by weight of fired paper sludge (PSA); It provides a cement zero binder permeable pavement using papermaking sludge and granulation rate, characterized in that the mixture of 70-80% by weight of white masato and stone powder mixed at a weight ratio of 6: 4.

At this time, the calcined paper sludge (PSA) is naturally dried in the dry state of the collected paper sludge to within 20% of the moisture content, and the dried paper sludge is dried in a rotary kiln at a condition of 12 rpm, 150 ° C. for 30 minutes, and residual moisture and It is also characterized in that it is in the form of a hydraulically reactive binder discharged to the outside to evaporate and incinerate the reactive organic material to have a granular shape.

In addition, the pavement road is characterized in that the pavement road has a compressive strength of 150 ~ 250 kgf / cm ² , flexural strength of 30 ~ 45 kgf / cm ² , the permeability coefficient is 3.0 ~ 7.0 mm / sec.

In addition, the present invention provides a method of paving the pavement described above; A first step (S100) of performing installation and compaction of the base layer 200 after cleaning the bottom surface 100 which is the roadbed to be packed; A second step (S110) of installing a dynamics layer 300 on the base layer 200; A third step (S120) of increasing the inter-layer engagement by performing the first compaction using the first mantissa and the dandemola after the second step (S110); A fourth step (S130) for laying the surface layer 400 on the mechanics layer 300; The fifth step (S140) of completing the pavement road through the second mantissa and the second compaction operation after the surface layer 400 configuration; Also provides.

According to the present invention, by using the inorganic binder and the granulation rate forcibly restraining the particles, it is possible to obtain the effect of solving problems such as drying shrinkage on the pavement and reduced walking feeling due to the dry shrinkage, which is a disadvantage of the existing pavement.

1 is an exemplary configuration diagram showing a layered structure of a cement zero binder permeable pavement using the papermaking sludge and the assembly rate according to the present invention.
2 is a flowchart showing a method for paving a cement binder binder permeable pavement using paper sludge and assembly rate according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIG. 1, the cement zero binder permeable pavement using the papermaking sludge and the assembly rate according to the present invention has a bottom surface 100 that forms the base of the road, that is, a base layer 200 formed on the top of the road. It is configured to include a mechanical layer 300 formed on the base layer 200 and a surface layer 400 formed on the mechanical layer 300.

In this case, the base layer 200 is a base layer and is composed of a bottom ash.

The bottom ash refers to ash falling directly from the presbyopia to the bottom of the boiler when the coal is burned, the particle size is various and suitable as a substitute for natural aggregate, and formed of porous containing 60% or more of siliceous light and strength There is a high characteristic.

In addition, since the bottom ash has a very rough surface compared to general natural aggregates, the bottom ash can have a large anti-slip effect when applied to road paving materials requiring friction, and has sufficient water permeability while maintaining appropriate mechanical strength.

In the present invention, a particle size of 10-20 mm is used. For example, it is particularly preferable to use either a 15 mm sieve and all that is left in the 10 mm sieve or a 25 mm sieve and all that is left in the 20 mm sieve.

In addition, the dynamic layer 300 is a layer that stabilizes through load distribution while structurally supporting the complex force transmitted from the surface layer 400.

To this end, in the present invention, any one or two or more of gravel, sand, fine grains, and crushed stone are mixed with cement or bitumen.

In addition, the surface layer 400 is a layer directly resisting road wear due to the load, and constitutes the outermost part of the pavement for walking or bicycle according to the present invention.

At this time, the surface layer 400 is calcined paper sludge (PSA) 20-30% by weight; 70-80% by weight of a mixture of white masato and stone powder in a weight ratio of 6: 4 is used in combination with each other.

When configured in this way, the pavement road according to the present invention has a compressive strength of 150 ~ 250 kgf / cm ² , the flexural strength of 30 ~ 45 kgf / cm ² , the permeability coefficient is 3.0 ~ 7.0 mm / sec, eco-friendly walking or bicycle It is possible to construct a pavement for dragons.

Here, the general physical and chemical properties of the fired paper sludge (PSA) are shown in Tables 1 and 2 below, and the crystallographic analysis and microstructure picture are shown in Figs.

In particular, the reason why the surface layer 400 is composed of white masato and stone powder is complex, because the soil is generally used due to the plasticity during hydrolysis, the viscosity is given, in this case by forming a bonding force between the soil particles trapping of the voids Because the phenomenon appears and can not expect the required water permeability, it is to replace the part of the white masato with stone powder, which is a non-plastic material, to impart physical water permeability to the soil.

In addition, the particle size of the white masato and stone powder, as shown in Table 3 below, it is preferable to use the 10-13mm of the pass through 100%.

(Table.3)

In addition, the calcined paper sludge (PSA) is a kind of binder, and naturally dried paper sludge produced in the domestic state in a dry state within 20% of moisture content, and dried paper sludge in a rotary kiln at 12 rpm, 150 ° C. for 30 minutes. It is preferable to use a hydrophobic reaction binder in the form of a dried and processed by evaporating incineration of the residual moisture and the reactive organic material to be discharged to the outside to have a granularity of less than 3% of the absorption.

Since the treated paper sludge has a spherical shape having porous particles, it serves to adsorb and fix the reaction water using capillary action of the porous particles.

Through this, the paper sludge forcibly restrains the particles, thereby eliminating problems such as gaitability, cracking due to dry shrinkage, and performance degradation due to pore blocking.

Pavement road pavement method according to the present invention having such a layered structure is as shown in FIG.

First, after the bottom surface 100 is cleaned up, a first step (S100) of installing and compacting the base layer 200 is performed.

Subsequently, a second step S110 of laying the dynamics layer 300 on the base layer 200 is performed.

These first and second steps S100 and S110 are installed and installed with the materials described above.

Thereafter, a third step S120 in which the primary mantissa and the first compaction are performed is performed.

In particular, the present invention constitutes the assembly rate in consideration of the coefficient of friction between materials, hardening between materials gives the maximum interlocking effect between the aggregates through the first compaction, through the minimum coupling between aggregates through the second mandrel during the second compaction Permeable eco-friendly packaging will be completed.

In addition, the equipment used for compacting uses a 5ton single modem to compact enough voltage for the entire area.

Then, a fourth step S130 of laying the surface layer 400 is performed.

In this case, the surface layer 400 is preferably used by kneading the calcined paper sludge (PSA) with the mixture described above in the field-type mixer having a rotational speed of 20 rpm at the construction site for 3 minutes.

In particular, the calcined paper sludge used in the present invention is hydrolyzed in the field by dry blending and absorbed and absorbed through the micropores formed inside the sphere to impart plasticity to Masato constituting the surface layer to complete interparticle bonding. do.

Therefore, in order to impart a predetermined stiffness, water must be sprayed to sufficiently catch the surface of each process.

To this end, a fifth step (S140) in which the second mantissa and the second compaction operation are performed once again after the surface layer 400 is constructed is completed, thereby completing the pavement of the present invention.

Thus, in the present invention, it is possible to complete a pavement with sufficient permeability, bearing capacity, and stability without using cement.

100: bottom 200: substrate
300: dynamic layer 400: surface layer

Claims (4)

In the pavement for walking or bicycle on which the base layer 200, the dynamics layer 300, the surface layer 400 are sequentially formed on the floor surface 100 which is the roadbed;
The base layer 200 is formed of a bottom ash having a particle size of 10-20 mm;
The dynamic layer 300 is made by mixing any one or two or more of gravel, sand, fine grain, crushed stone with cement or bitumen material;
The surface layer 400 is 20-30% by weight of fired paper sludge (PSA); Permeable pavement of cement zero binder using papermaking sludge and granulation rate, characterized in that 70-80% by weight of a mixture of white masato and stone powder are mixed at a weight ratio of 6: 4.
The method according to claim 1;
The calcined paper sludge (PSA) is naturally dried in the dry state of the collected paper sludge to within 20% of moisture content, and the dried paper sludge is dried in a rotary kiln at a condition of 12 rpm, 150 ° C. for 30 minutes, and residual moisture and reactive organic matter. A papermaking sludge and a cement-based binder-permeable pavement using an assembly rate, characterized in that the material is in the form of a hydraulic reaction binder discharged to the outside to have a granular shape by evaporating incineration.
The method according to claim 1;
The pavement road is a pavement road, compressive strength of 150 ~ 250 kgf / cm ² , flexural strength of 30 ~ 45 kgf / cm ² , permeability coefficient of the paper sludge and cement using the assembly rate, characterized in that it has a 3.0 ~ 7.0 mm / sec Zero binder permeable pavement.
In the method of paving the pavement of claim 1;
A first step (S100) of performing installation and compaction of the base layer 200 after cleaning the bottom surface 100 which is the roadbed to be packed;
A second step (S110) of installing a dynamics layer 300 on the base layer 200;
A third step (S120) of increasing the inter-layer engagement by performing the first compaction using the first mantissa and the dandemola after the second step (S110);
A fourth step (S130) for laying the surface layer 400 on the mechanics layer 300;
The fifth step (S140) of completing the pavement road through the secondary mantissa and the second compaction after the surface layer 400 configuration; .

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