KR101739774B1 - A liquid hardner of a silicate type concrete - Google Patents
A liquid hardner of a silicate type concrete Download PDFInfo
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- KR101739774B1 KR101739774B1 KR1020150078855A KR20150078855A KR101739774B1 KR 101739774 B1 KR101739774 B1 KR 101739774B1 KR 1020150078855 A KR1020150078855 A KR 1020150078855A KR 20150078855 A KR20150078855 A KR 20150078855A KR 101739774 B1 KR101739774 B1 KR 101739774B1
- Authority
- KR
- South Korea
- Prior art keywords
- silicate
- weight
- liquid
- concrete
- hardener
- Prior art date
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- 239000004567 concrete Substances 0.000 title claims abstract description 41
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 title claims description 12
- 239000004848 polyfunctional curative Substances 0.000 claims abstract description 32
- -1 silicate compound Chemical class 0.000 claims abstract description 27
- 239000007791 liquid phase Substances 0.000 claims abstract description 20
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 230000035515 penetration Effects 0.000 claims abstract description 12
- 230000002087 whitening effect Effects 0.000 claims abstract description 7
- 230000003020 moisturizing effect Effects 0.000 claims abstract description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 25
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 25
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 25
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 21
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 21
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910018068 Li 2 O Inorganic materials 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 238000005299 abrasion Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 10
- 235000019198 oils Nutrition 0.000 description 10
- 238000010276 construction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000005728 strengthening Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000001993 wax Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000011433 polymer cement mortar Substances 0.000 description 3
- 150000004760 silicates Chemical class 0.000 description 3
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 2
- 229910018071 Li 2 O 2 Inorganic materials 0.000 description 2
- 240000007817 Olea europaea Species 0.000 description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000008387 emulsifying waxe Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000000787 lecithin Substances 0.000 description 2
- 229940067606 lecithin Drugs 0.000 description 2
- 235000010445 lecithin Nutrition 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- FSYKKLYZXJSNPZ-UHFFFAOYSA-N sarcosine Chemical compound C[NH2+]CC([O-])=O FSYKKLYZXJSNPZ-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920001285 xanthan gum Polymers 0.000 description 2
- 239000000230 xanthan gum Substances 0.000 description 2
- 229940082509 xanthan gum Drugs 0.000 description 2
- 235000010493 xanthan gum Nutrition 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910000502 Li-aluminosilicate Inorganic materials 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- AISMNBXOJRHCIA-UHFFFAOYSA-N trimethylazanium;bromide Chemical compound Br.CN(C)C AISMNBXOJRHCIA-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1074—Silicates, e.g. glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/08—Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a liquid-phase hardner containing a silicate compound, which can increase penetration depth and moisturizing effect of a silicate compound and prevent whitening, thereby improving quality;
The present invention provides a silicate-based concrete liquid-phase hardener comprising 0.01 to 0.15% by weight of a natural oil-based surfactant added to the total weight of the liquid-phase hardener composition containing the silicate compound.
Description
The present invention relates to a concrete liquid-solid hardener composition used for reinforcing concrete surfaces, and more particularly, to a concrete liquid-solid hardener composition containing a silicate compound to increase the penetration depth and moisturizing effect of a silicate compound, So that the quality of the silicate-based concrete can be improved.
In general, the floor of a building or building is more frequently used than a place such as a pillar, beam, or wall, where it is most frequently encountered by a resident or a user. It should not infringe on the health of the human body, Chemical resistance, abrasion resistance, adhesion performance, and the like.
The concrete used on the floor is usually formed by hydration reaction with cement. Since the chemical resistance such as acid resistance and chemical resistance is low, the structure is not densified and the abrasion resistance is low, so dust is frequently generated, .
Accordingly, in recent years, a separate floor finishing material has been proposed and used in order to overcome such shortcomings.
Such floor finishes are classified into organic finishing materials and inorganic finishing materials, and the inorganic finishing materials are classified into powder hardeners, inorganic liquid hardeners, polymer cement mortars and the like.
Since the polymer cement mortar is excellent in the construction efficiency and generally has a lot of quick-hardening products, it is possible to shorten the pavement since it is possible to walk after a day usually after the construction, and the compressive strength, tensile strength, bending strength, And its elastic modulus and strain are similar to those of concrete, so that it has good durability and excellent impact resistance and freezing resistance.
Further, by selecting a suitable top material, it is possible to improve chemical resistance, abrasion resistance, water resistance, and the like. However, if the shrinkage expansion rate of the conventional concrete is different from that of the existing concrete structure, there is a problem that the adhesive force is lowered or the phenomenon of falling off, cracking and peeling of the heavyweight material occurs due to continuous impact (walking or running) .
In the above, in the case of an inorganic coating agent used as a top coat of polymer-cement mortar, it has been proposed and developed to apply a silicate, which is a type of liquid phase hardener.
The above-mentioned silicate (soluble silicate) is a general term of a compound containing at least one metal salt in silicon and oxygen, and includes sodium silicate, potassium silicate, lithium silicate and the like, and reacts with calcium hydroxide produced by hydration reaction of cement, As the calcium hydrate is formed, the concrete structure is compacted.
The sodium silicate used to reinforce the surface of the concrete is surface-reinforced by the bond between the concrete surface and the silicone cross-linked polymer.
However, when sodium silicate alone is used, the surface strengthening performance is excellent, but the infiltration performance is poor, and if it is exposed to water after construction, whitening occurs.
On the other hand, when lithium silicate is used alone, it has excellent surface strengthening and penetration performance, but it has a disadvantage in that it is difficult to secure economical efficiency because the amount of penetration is excessive and the amount is large and the price is high.
In the above-mentioned silicate-applied composition, Korean Patent Registration No. 10-1073693 (titled floor construction method using an environmentally friendly flooring finish), 1) water-soluble alkali metal silicate, aluminum hydroxide, It is composed of an anticorrosion agent for reinforcement of concrete spheres including colloidal silica and a dustproof finish layer with binder function to induce multi-coordination bonding by chelate to stably and strongly bond the aqueous system coating. The impregnation agent is a colloidal silica dispersion solution having a silica (SiO2) content of 10 to 15 nm in particle size, 7 to 15% by weight of a water-soluble alkali silicate, aluminum hydroxide [Al (OH) 3] (10 to 40% by weight) of a water-soluble silicate, a suspending agent (0.25 to 10% by weight) , A filler (20 to 45 wt%), a chelating agent (0.1 to 0.8 wt%), an absorption inhibitor (0.1 to 0.5 wt%), and water (10 to 69 wt%) .
In the Korean Patent Registration No. 10-1337346 (titled "Floor Finish Composition of Concrete Structure, Method for Manufacturing the Same, and Concrete Floor Finishing Method Using the Same)", as described in the publication, 50 to 80% by weight of modified potassium silicate, 5 to 20% by weight of lithium aluminosilicate, 1 to 5% by weight of microsilica, 1 to 10% by weight of silane cream, and 5 to 25% by weight of a siloxane modified emulsion.
In addition, as described in Korean Patent Registration No. 10-1073693 (titled floor construction method using environmentally friendly flooring finishing material), the undercoating layer of the water-soluble polymer emulsion, the intermediate silicate-based intermediate layer and the top layer of the modified silicate ; Wherein the modified silicate comprises an alkali silicate, trimethyl ammonium bromide and water; And a construction method in which the modified silicate is mixed with flax oil and terpine yogis.
However, the conventional compositions as described above are effective in increasing penetration depth and moisturizing effect of the main raw material (silicate) to concrete and preventing whitening, so that the surface of the concrete can be stably applied without affecting the compressive strength, neutralization, There is a problem in that it can not be expected to improve the quality of reinforcing.
Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a silicate- So that the quality of the silicate-based concrete can be improved.
In order to achieve the object of the present invention, the silicate-based concrete liquid-based hardener of the present invention is prepared by adding 0.01 to 0.15% by weight of a natural oil-based surfactant to the weight% of the entire liquid hardener composition containing a silicate compound .
The natural oil based surfactant may be at least one selected from the group consisting of coco betaine, lecithin, xanthan gum, montanov wax, sorbilizer, emulsifying wax, olive esterified wax, sulphosuccinate, Or a mixture of two or more kinds selected from the group consisting of water, a liquid, and the like.
The silicate compound is characterized by being composed of a complex silicate compound composed of a mixture of sodium silicate and lithium silicate.
The silicate compound is characterized by comprising 60 to 80% by weight of sodium silicate and 20 to 40% by weight of lithium silicate based on the total silicate compound.
The silicate-based compound may include 9 to 10% by weight of Na 2 O and 28 to 30% by weight of SiO 2 based on the total weight of the liquid phase hardener, the lithium silicate may include Li 2 O 2 to 3% by weight, SiO 2 By weight and 19 to 21% by weight.
The silicate-based concrete liquid-based hardener of the present invention as described above has the effect of lowering the interfacial tension of the liquid phase hardener by the natural oil based surfactant, increasing penetration into the pores of the concrete surface, . ≪ / RTI >
Accordingly, the penetration depth and the moisturizing effect of the silicate compound can be increased and the whitening can be prevented, thereby improving the quality.
Therefore, it has an effect of stably strengthening the surface of the concrete without affecting the compressive strength, neutralization, freezing and thawing of the concrete.
Hereinafter, the silicate-based concrete liquid-phase hardener according to a preferred embodiment of the present invention will be described in detail.
The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.
The silicate-based concrete liquid-based hardener according to an embodiment of the present invention is formed by adding a natural oil-based surfactant to a silicate compound.
The silicate compound is preferably composed of a composite silicate compound composed of a mixture of lithium silicate.
In other words, while sodium silicate has a surface strengthening action by bonding a concrete surface with a silicone cross-linking polymer, the penetration performance is lowered when used alone, and whitening occurs when exposed to moisture after construction.
On the other hand, when the lithium silicate is used singly, the penetration performance is excellent, but it is disadvantageous in that it is difficult to secure economical efficiency because the amount of penetration is excessive and the amount is large and the price is high.
Accordingly, when the lithium silicate and the sodium silicate are mixed and used in combination, the surface strengthening performance is increased and economical efficiency can be secured.
The silicate compound is preferably composed of 60 to 80% by weight of sodium silicate and 20 to 40% by weight of lithium silicate with respect to the total silicate compound. When less than 60% by weight of sodium silicate is used, When the silicate compound is used in an amount exceeding 80% by weight based on the entire liquid phase hardener, the viscosity of the liquid phase hardener is high and the workability is low.
The silicate compound comprises 9 to 10% by weight of Na 2 O and 28 to 30% by weight of SiO 2 based on the total weight of the liquid phase hardener, the lithium silicate comprises 3 to 10% by weight of Li 2 O 2, 2 19 to 21% by weight.
Hereinafter, the silicate-based concrete liquid-phase hardener according to the present embodiment will be described in more detail as follows.
[Experimental Example 1]
The amount of wear was measured by applying sodium silicate to the concrete surface using 50 to 100 wt% of the total liquid hardener. The abrasion loss was measured using an abrasion tester under conditions of a rotating speed of 100 rpm and a number of revolutions of 1,000, and the results are shown in Table 1.
(g)
As shown in Table 1, the effect of reducing the surface wear was small at a sodium silicate use amount of 50 wt%, and the viscosity of the liquid hardener was high at 80 wt% or more, resulting in poor workability.
Accordingly, it is preferable that the sodium silicate is 60 to 80% by weight based on the entire liquid phase hardener.
[Experimental Example 2]
The concrete wear test was carried out according to the mixing ratio of sodium silicate and lithium silicate. The results are shown in Table 2.
As described in [Table 2], when the combination of sodium silicate and lithium silicate is used in combination, the amount of surface wear is reduced, and when the lithium silicate and sodium silicate are used in combination, the effect is excellent.
This is due to the fact that the concrete surface is strengthened more densely by the difference in the molecular sizes of lithium silicate and sodium silicate in the cross-linking of the silicate on the concrete surface.
Accordingly, the silicate compound is preferably composed of 20 to 80% by weight of sodium silicate and 20 to 80% by weight of lithium silicate with respect to the total silicate compound, and is composed of 60 to 80% by weight of sodium silicate and 20 to 40% Is most preferable.
[Experimental Example 3]
Concrete abrasion tests were conducted by applying a natural oil based surfactant to a liquid phase hardener to which 80% by weight of sodium silicate and 20% by weight of lithium silicate were applied to the total silicate compound. The natural oil based surfactant used alkylpolyglucoside (APG) And proceeded at 0.01, 0.05, 0.1, 0.15, and 0.2 wt%.
The abrasion test was carried out using an abrasion tester at a rotation speed of 100 rpm and a rotation speed of 200, 400, 600, 800 and 1000 times.
The whiteness of the abrasion test body was immersed in water to determine whether bleaching occurred after 14 days. The detailed results are shown in [Table 3].
(%)
(g)
As shown in Table 3, when the natural oil-based surfactant is added, the interfacial tension of the liquid-phase hardener is lowered by the natural oil-based surfactant, so that the penetration power is increased in the pores of the concrete surface, Thereby suppressing whitening of the compound.
At this time, the abrasion amount of 800 ~ 1000 times is improved to 0.01 ~ 0.15% by weight with respect to the entire liquid phase hardener, and the surface of the concrete becomes poor due to the foaming of the liquid phase hardener due to the surfactant at 0.2% .
Accordingly, it is preferable that 0.01 to 0.15% by weight of a natural oil-based surfactant is added to the total weight of the liquid-phase hardener composition.
The natural oil based surfactant may be at least one selected from the group consisting of coco betaine, lecithin, xanthan gum, montanov wax, sorbilizer, emulsifying wax, olive esterified wax, sulphosuccinate, Or a mixture of two or more species selected from the group consisting of water, a liquid, and the like.
While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the examples disclosed in the present invention are not intended to limit the scope of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.
Claims (5)
The silicate-
A silicate compound to which 80% by weight of sodium silicate and 20% by weight of lithium silicate are applied to the total silicate compound; Wherein 0.01 to 0.15% by weight of a natural oil-based surfactant is added to the total weight of the liquid-phase hardener composition containing the silicate compound,
The natural oil based surfactant is used as an alkyl polyglucoside (APG)
By the combination of sodium silicate and lithium silicate, the amount of surface wear of the concrete is reduced by the difference in molecular size between lithium silicate and sodium silicate when the silicate is crosslinked on the surface of the concrete,
Characterized in that the interfacial tension of the liquid phase hardener is lowered by the natural oil based surfactant to increase the penetration force on the pores of the concrete surface and generate a moisturizing effect to suppress the whitening phenomenon of the silicate compound
Silicate-based concrete liquid-hardener.
The above-mentioned silicate-
The sodium silicate, relative to the total liquid-hardener weight percent,
9 to 10% by weight of Na 2 O and 28 to 30% by weight of SiO 2 ,
Lithium silicate, relative to the total liquid < RTI ID = 0.0 >
2 to 3 wt% of Li 2 O, and 19 to 21 wt% of SiO 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150078855A KR101739774B1 (en) | 2015-06-03 | 2015-06-03 | A liquid hardner of a silicate type concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150078855A KR101739774B1 (en) | 2015-06-03 | 2015-06-03 | A liquid hardner of a silicate type concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20160142955A KR20160142955A (en) | 2016-12-14 |
| KR101739774B1 true KR101739774B1 (en) | 2017-05-26 |
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| KR1020150078855A KR101739774B1 (en) | 2015-06-03 | 2015-06-03 | A liquid hardner of a silicate type concrete |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114907045A (en) * | 2022-05-19 | 2022-08-16 | 上海正欧实业有限公司 | Liquid concrete penetration hardening agent |
| WO2024197291A1 (en) * | 2023-03-23 | 2024-09-26 | Upa Solutions, Llc | Cementitious structure treatment |
| KR102645281B1 (en) * | 2023-10-31 | 2024-03-08 | 주식회사 삼표산업 | Concrete surface hardener, Concrete surface rough finishing method and Rough finished concrete member using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100963484B1 (en) | 2009-11-03 | 2010-06-14 | 신성종합건축사사무소(주) | Inorganic based composition for reinforcing and coloring to concrete surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100963484B1 (en) | 2009-11-03 | 2010-06-14 | 신성종합건축사사무소(주) | Inorganic based composition for reinforcing and coloring to concrete surface |
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