KR100211348B1 - Soil solidifying material using foreshore and preparation thereof - Google Patents

Abstract

The present invention relates to a solid agent that can be used as a ground stabilizer of landfills and reclaimed land using sea tidal flats or to produce construction materials. The present invention relates to a cement and quicklime, and to sand, lime, tar and adhesion to crushed tidal flats. It is made by adding and adding a solidifying agent, so it can be easily carried out while utilizing the existing resources in the building, and it has a short solid time and excellent solidification and waterproofing function so that it does not generate cracks or corrode metal materials. And it is possible to provide a solid material for building materials.

Description

Basic Ground Stabilizer Using Tidal Flats and Manufacturing Method Thereof

The present invention relates to a ground stabilizer used to stabilize the ground of reclaimed land and reclaimed land using the tidal flat of the sea and a method of manufacturing the same.

In more detail,

The present invention relates to a solid preparation using a tidal flat, and a method for producing the ground stabilizer, which is obtained by grinding sea tidal flat into particles of a constant size and then mixing an appropriate amount of cement and quicklime with water.

In the prior art, only a limited use of the ocean tidal flat.

In other words, in order to form the ground of reclaimed land or landfill, the tidal flats are gathered to be used as basic ground stabilizer, but when the salt is very high in the tidal flat itself, cracks occur and water penetrates through the cracks. This disappeared and there was a problem that can not be effectively used as a ground stabilizer.

In particular, the tidal flat has a low permeability coefficient, but is also widely used in landfills, but there is a risk of cracked subsidence and collapse, and a large amount of leachate occurs during the rainy season due to cracking. Although some special binders and hardeners were added to alleviate this problem, it would create another costly problem and could not completely solidify it.

Since the tidal flats could not be completely solidified, in order to build the dike for the construction of the sea water barrier, the ground was stabilized using gravel, rebar, pile, concrete sleeve, pile, etc., and then gravel, soil, stones, etc. However, the construction was complicated and difficult as well as the construction period was long, so the construction cost was enormous, and during the construction period, the piled banks collapsed due to the soft tidal flats. There were some problems such as the need to check frequently for leaks. Also, the salt contained in the tidal flats easily corroded steel bars, piles, and cements, which caused problems in the stability of the ground.

The present invention is to provide a ground stabilizer and a method of manufacturing the same as a main raw material to the tidal flat that can solve the above problems and waste.

The present invention is made of a non-complicated step and can be easily manufactured by a simple apparatus, and the object of the present invention is to provide a ground stabilizer for landfills and a method of manufacturing the same by solidifying a tidal flat.

It is another object of the present invention to shorten the construction period and to reduce the construction cost, and to provide a basic ground stabilizer and a method of manufacturing the same so that the metal material is not corroded by removing salinity.

The above and other objects of the present invention,

Tidal Flats 500 Cement 50 to 3000g 250 g and quicklime 20 Mix 100 g and add 10 g of water-soluble paraffin to the mixture. 60 g and water 30 It is achieved by the solid for base ground stabilizer which was mixed by adding 60 cc.

In the above example according to the invention,

Normal mudflat is 60 70 Water content of 30% 40 It keeps the water content of and grinds the particles evenly by the grinder.

The cement is to solidify the tidal flat to maintain the strength, and the quicklime is to be properly solidified, the quicklime is usually used calcium oxide.

Water-soluble paraffins are used to promote solidification and at the same time to achieve a waterproofing effect and to prevent salts from coming into contact with metals.

The cement, quicklime (calcium oxide) and water-soluble paraffin are preferably added and mixed in an appropriate ratio so that the solidifying agent does not solidify too slowly or rapidly.

Also, the added water should allow the mixture to be mixed evenly but not too thin or dry. 40 Keep it hydrated.

1 is an exemplary view showing a process for producing a solid stabilizer according to the present invention as a ground stabilizer.

* Explanation of symbols for main parts of the drawings

1: Tidal flat feeding container 2: Solidifying bottle

3,8 grinder 4: stirrer

5: curing barrel 6: landfill

Hereinafter, specific examples of the solids for the foundation ground stabilizer using the tidal flat according to the present invention and a manufacturing method thereof will be described in more detail with reference to the accompanying drawings.

1 is an exemplary view showing a manufacturing process of the solid agent for the foundation ground stabilizer.

The tidal flat canister (1) is filled with ordinary tidal flats, and the solidifying can (2) is mixed with cement and calcium hydroxide such as quicklime, and the grinder (3) is a tidal flat supplied from the tidal flat can (1) The particles are ground into even granules, allowing them to mix well with the added material.

In the stirrer 4, a mixture of cement and quicklime, water-soluble paraffin, and water mixed in the tidal flat and the solidifying filler tank 2 are evenly pulverized by the pulverizer 3, and then mixed.

When the mixture is completed, the mixture is placed in the curing container (5) and dropped into the landfill (6) to be used as a solid for the foundation ground stabilizer when clearing the reclaimed land.

Example 1

60 70 2000 g of mudflat containing water was put into the mud flat feeding container (1), and then dried. 40 To be maintained and discharged into the grinder (3) to pulverize into small grains, and 100 g of cement and 30 g of quicklime (calcium oxide) were added to the solidifying container (2), mixed, and mixed with 2000 g of crushed tidal flats. The agent was added to the stirrer (4), and 20 g of water-soluble paraffin and 400 cc of water were added thereto, followed by stirring.

The mixture stirred in the stirrer (4), that is, the solid for the foundation ground stabilizer was obtained.

Example 2

According to the process of FIG. 1, the same method as in Example 1 was carried out, but 1000 g of tidal flat was pulverized and fed, a mixture of 200 g of cement and 70 g of quicklime, 40 g of water-soluble paraffin, and 50 cc of water were mixed and mixed. Got a brother.

Example 3

Per 1000 g of the solid obtained in Examples 1 and 2, 450 g of sand, 350 g of stone powder, and 100 g of tar were added and mixed to obtain a solid having a stronger strength.

Solids for basic ground stabilizer obtained by this method are put on natural tidal flats and used for reclamation of landscaping of reclaimed land, and can be easily performed because it is made by simple process, and solidification time is short, solidification and waterproofing Its excellent function prevents cracking and corrosion of metallic materials.

Experimental Example 1

Laminate Testing of Internal Ground Stability

Water-soluble paraffin was added to the solid foundation for ground stability according to the present invention was cured for 7 days and then tested for uniaxial compressive strength and water penetration (permeability).

* Sample Date: 96. 10. 2 (Tue)

* Test standard: Standard of stabilization treatment

Compressive strength (more than 5kg / ㎠)

Permeability coefficient (x = 1 × 10 ^-7 cm or less)

* Table 1 above The content of 2 is the result tested by applying the compounding ratio of the water-soluble paraffin of the Example.

The test conditions described above were carried out by the uniaxial compressive strength test of SF, soil, and cement of KSF 2328, and the test equipment was tested by uniaxial compression test criteria using irradiation (NX) and Hilticore extractor (Φ2). In the moisture permeation test (permeability test), the required specimens were selected and the test specimens were prepared according to the indoor mixing test criteria, and then cured in a wet curing tank.

The test is continued until the inflow and outflow are the same and the steady-state flow rate (when the outflow is almost constant) is calculated and the permeation relationship is calculated by the following equation according to Darcy's law using the outflow (dissolution) at that time. It was.

* Permeability Calculation Formula

[Experiment 2]

Laminate solidification ground stability test using conventional ground stability special solidification waterproofing agent

As the ground stabilized special solidification waterproofing agent, conventional ESC, New Beton, Vesta, DMDC (trade name), etc. were used.For example, 150kg of cement per 1㎥ mixed with an insoluble solvent (ground stable waterproofing agent: DMDC) for simple solidification by hydration reaction. But it was confirmed that the workability is poor and the applicability is poor. Table 7 shows the results of comparison of uniaxial compressive strength and permeability coefficient after curing for 7 days using conventional solidifying waterproofing agents.

As a result of testing the uniaxial compressive strength of the sample cured by using the conventional solidified waterproofing agent, after 7 days of curing A company: 3.1kg / ㎠, B company: 3.31kg / ㎠, C company: 4.2kg / ㎠, D company : A value of 5.08 kg / cm 2 was shown.

In order to meet the uniaxial compressive strength (more than 5kg / ㎠) in accordance with the ground stabilization criteria, the standard value was shown after curing test for 28 days.

A company: 4.49kg / cm 2, B company: 5.45kg / cm 2, C company: 6.5kg / cm 2, D company: 10.28kg / cm 2.

As described above, as a result of using the ground stabilized solid agent according to the present invention, it was confirmed that the compressive strength and the permeability coefficient were excellent. Finally, the ground stabilized solid agent enters, thus promoting the drying, that is, the excellent curing and waterproofing properties. . In particular, it was confirmed that the uniaxial compressive strength at 7 days of curing was much better than the special waterproofing hardeners conventionally used and can prevent the penetration of moisture. That is, when the conventional ground stabilizer (water repellent) is used, the uniaxial compressive strength legal standard value (ground stabilization standard specification) value must be cured for 28 days, whereas curing is performed for only 7 days when the ground stabilizer of the present invention is used. It was confirmed that all the test samples maintained about 4 times higher compressive strength than the legal standard of uniaxial compressive strength of 5kg / ㎠.

The solids for the basic ground stabilizer obtained as described above utilize pure tidal flats so that the existing resources can be utilized for buildings, and since various water-soluble substances are added, they are excellent in waterproofness and will not corrode even when contacted with metal. The foundation ground stabilizer firmly supports the foundation ground, thereby preventing the occurrence of the collapse of the banks.

Claims (2)

Tidal Flats 500 Cement 50 to 3000g 250 g and quicklime 20 Mix 100 g and add 10 g of water-soluble paraffin to the mixture 60 g and water 30 Solid for foundation stability using mud flat made by mixing 60cc. Tidal Flats 500 30g to dry 40 And grinding to make it contain moisture of Cement 50 250 g and quicklime 20 Primary mixing of 100g, water-soluble paraffin 10 in crushed tidal-flat and primary mixture 60 g and water 30 A method for producing solid foundation stabilizer using a tidal flat with a process of mixing 600 cc.