KR20160081182A - Additive for Water Repellent Plaster Mortar or Remitar - Google Patents

Abstract

Disclosed are a functional water repellent mortar or remitar additive to be used to a common mortar or a remitar plastering product; and a manufacturing method of water repellent mortar or remitar using the same. According to the present invention, the water repellent mortar or remitar additive allows mortar or remitar to comprise a resin, a dispersant, a retardant, a defoamer, a dust reducing agent, a water repellent material, a water repellency enhancer, and a filler with an optimal composition ratio to be used as a water repellent. Also, the water repellent mortar or remitar additive can be used to manufacture water repellent mortar or remitar which realizes a water repelling function with a certain level by mixing and using a defoamed material with common mortar or remitar.

Description

Additive for Water Repellent Plaster Mortar or Remitar < RTI ID = 0.0 >

The present invention relates to a foot-receiving mortar or remit additive added to a general mortar or modified water-based product, and a method for producing a water-repellent functional mortar or remitelal using the same. More specifically, the present invention relates to a method for producing a mortar or remit additive containing a resin, a dispersant, a retarder, a defoaming agent, a dust abatement agent, a water repellent material, a water repellency improving agent and a filler, The present invention also relates to a method for producing mortar or remitelal which exhibits a certain level of water-repellent functionality by mixing the above-mentioned small-sized material with common mortar or remitelal.

Generally, in large construction sites, each type of ready mixed mortar product is used. The floor is made of Vanguard mortar, the plaster is made of plaster mortar, and the waterproofing is made by adding liquid waterproofing to general mortar, and the repair mortar is used for flattening and filling works. Such a large construction site is under the management of large construction companies, through the mechanical construction, quality control thoroughly, construction and construction according to construction guidelines, the purchase of materials to secure economic efficiency.

However, the following problems arise in small construction sites.

First, a variety of different types of mortar are used in a construction site, which is difficult to buy in one place. Therefore, small quantities of mortar products for each type of use must be purchased at each purchaser, resulting in high transportation costs.

Secondly, there are difficulties in using mortar because of different methods of use.

Third, in case of a small construction site, it is difficult to manage the product quality and construction and it is often the case that a product which does not meet the KS standard is used.

Fourth, there is a case where the constructor arbitrarily adjusts the number of blending water or the admixture material to improve the construction / workability in the field or to reduce the material.

Korean Patent No. 10-1203476 discloses an exemplary composition for improving water repellency in a cement material, which composition comprises a hydrophobic substance solute dissolved in a glycol ether solvent.

International Patent Application No. PCT / US2012 / 056109 discloses a water repellent composition comprising an emulsion comprising water, at least one surfactant and a specific siloxane copolymer.

However, neither the patent nor the patent application improves various physical properties including compressive strength and adhesion strength of concrete, and fails to achieve water repellency.

The present invention provides a water-soluble functional water-soluble mortar or remit additive for use in general mortar or modified water-based products, and a water-repellent functional mortar or remiteral using the same, It has its purpose. It is expected that the present invention will replace the existing mortar product in a part where water repellency is required such as a toilet, a veranda, and the like. More particularly, the present invention makes it possible to optimally incorporate resins, dispersants, retarders, antifoaming agents, dust abatement agents, water repellent materials, water repellency improving agents, and fillers into mortars or remittances, The present invention provides a foot-receiving mortar or remit additive capable of producing a foot-receiving mortar or remitelal which is produced by small-scale production and which uses the above packed material in combination with general mortar or remitelal to exhibit a certain level of water- .

The foot-receiving mortar or remit additive according to the present invention is economically advantageous in small-scale construction because it can reduce the minimum purchase unit of the product in comparison with the existing finished product type, and it is relatively easy to store and manage the remaining product after use. In addition, since this small-sized product is developed in powder form, it is advantageous in environmental aspects such as corruption which may occur in existing liquid product, quality deterioration due to freezing in winter, recovery of empty container after product use and disposal treatment.

In the present invention, 1 to 55% by weight of a resin, 0.05 to 5% by weight of a dispersant, 1 to 5% by weight of a retarder, 1 to 5% by weight of a defoamer, 1 to 5% by weight of a defoamer, The present invention achieves the object of the invention by providing a foot-receiving mortar or remyad additive comprising 1 to 10% by weight of water repellent material, 1 to 50% by weight of water repellent material, 1 to 50% by weight of water repellency improving agent, and 3 to 30% .

The foot-receiving mortar or remyelin additive of the present invention imparts water absorption and water-repellent performance within the limits described above, which do not deteriorate the basic physical properties of mortar or remiteral.

The present invention relates to a process for the preparation of a dust-reducing mortar or remedial additive, comprising 1 to 55 wt% of a resin, 0.05 to 5 wt% of a dispersant, 1 to 5 wt% of a retarder, 1 to 5 wt% of a defoamer, 1 to 10 wt%, water repellent material 1 to 50 wt%, water repellency improving agent 1 to 50 wt%, and filler 3 to 30 wt%.

In the present invention, the water-receiving mortar or remyelin additive is used at a ratio of about 200: 1 to 200: 5 with respect to the general mortar or remiteral, so that the water absorption rate and the water-repellent performance .

The resin used in the foot-receiving mortar or remyad additive of the present invention is preferably a hydrophobic resin, a powdered VAE resin, a powdered acrylic resin, an SBR resin, a PVA resin or the like, and the resin of ethylene vinyl laurate as a redispersible polymer Ethylene vinyl acetate, vinyl chloride or an acrylic polymer, which maintains high adhesive strength and waterproof property by the bonding reaction of Ca ⁺⁺ with cement and ethylene vinyl acetate, vinyl chloride or acrylic polymer. More preferably, a redispersible polymer, particularly a hydrophobic resin containing water repellency, is used as the resin. A preferred example of such a hydrophobic resin is Vinapas 8031H or 8034H of Barker, Germany, obtained by reacting vinyl chloride with ethylene.

The resin contained in the foot-receiving mortar or remyad additive of the present invention is used in an amount of 1 to 55% by weight. When the content is more than 55% by weight, the workability and the finishability are lowered, The adhesion strength is weak and the water absorption and the water permeability are lowered.

The dispersant contained in the floor mortar or remyad additive of the present invention is preferably a lignin-based, naphthalene-based, melamine-based, polycarboxylic acid-based dispersant or the like. A preferred example of such a dispersant is Ferammin CONPAK 149S from Kearney, France.

The dispersant contained in the foot-receiving mortar or remyad additive of the present invention is used in an amount of 0.05 to 5% by weight. When the content is more than 5% by weight, bleeding and material separation occur. When the content is less than 1% Flow performance is reduced.

The retardant contained in the bottom mortar or remim additive of the present invention

Lactic acid, lignin sulfonic acid, gluconate, polyol complex, citric acid, tartaric acid, MUCIC ACID, gluconic acid, salicylic acid, HEPTONIC ACID, MALIC ACID, tannic acid, SACCHARIC ACID, , Sugars (SUGAR), and the like, and any combination thereof.

The powder retarder contained in the floor mortar or remyad additive of the present invention is used in an amount of 1 to 5 wt%, and when the content of the retarder is more than 5 wt%, workability and strength are lowered, %, The material separation and repair performance is degraded.

The antifoaming agent contained in the bottom mortar or remyad additive of the present invention is an alcohol, silicone or EOPO antifoaming agent, and when the silicone antifoaming agent and the EOPO antifoaming agent are mixed, the amount of antifoaming agent can be reduced. An example of a preferred antifoaming agent is antifoaming agent from P841 (German Antifoaming Agent).

Such an antifoaming agent is used in an amount of 1 to 5% by weight. When the content of the antifoaming agent is less than 1% by weight, the strength is lowered and surface bubbles are generated. When the content is more than 5% by weight, .

The dust-reducing agent contained in the floor mortar or remim additive of the present invention is preferably a particulate powder type fiber. An example of such a dust abatement agent is Arbocell LD from JRS, Germany.

The dust reducing agent contained in the bottom mortar or remyad additive of the present invention is used in an amount of 1 to 10% by weight, and when the content of the dust reducing agent is more than 10% by weight, , The surface finishability is lowered.

The water repellent material contained in the bottom mortar or remyad additive of the present invention is preferably calcium stearate which is an inorganic water repellent material in the form of a powder compatible with cement.

The water repellent material contained in the bottom mortar or remit additive of the present invention is used in an amount of 1 to 50% by weight, and when the content of the water repellent material exceeds 50% by weight, the adhesion strength and compressive strength are lowered, The water repellency and the water absorption, the reduction of the permeability and the water resistance are poor.

The water repellency improving agent contained in the floor mortar or remittance additive of the present invention is preferably powdery inorganic zinc stearate or aqueous silicone which can be used together with calcium stearate as the water repellent material described above to improve water repellency.

The water repellency improving agent contained in the floor mortar or remit additive of the present invention is used in an amount of 1 to 50% by weight. When the content of the water repellency improving agent exceeds 50% by weight, the adhesion strength and compressive strength are lowered, %, Water repellency and water absorption, permeability reduction, and water resistance are deteriorated.

The filler contained in the foot-receiving mortar or remyad additive of the present invention is preferably one selected from the group consisting of calcium carbonate powder, talc, abrasive powder, slag fine powder, fly ash, silica fume, Or more.

The filling agent contained in the foot-receiving mortar or remyad additive of the present invention is used in an amount of 1 to 80% by weight, and when it is less than 1% by weight, the strength and finishing performance are poor, and when it is used in an amount exceeding 80% The strength is lowered and the water repellency is lowered.

The present invention relates to the use of a foot-receiving mortar or remit additive of the present invention as described above having water-repellent functionality in a general mortar or modified watery product, The above-mentioned required physical properties are secured, the waste treatment cost is reduced, and eco-friendly products and economical efficiency are ensured.

The present invention will be described in detail with reference to the following examples, but the present invention is not limited thereto.

Example  One

(2 g) of antifoaming agent of P841 (3 g), a retarder of Stabilizer MT (3 g), a stabilizer MT (3 g), a dispersing agent of 149S (France Kearney) (30g) of water-repellent material of Ca-stearate, 30g of water-repelling performance improving agent of Zn-stearate, and filler of Sioxid HD (OFZ of Europe) 37.5 g) was mixed with 40 parts by weight of common Remitals (Hanil Cement Co., Ltd.) and 15 parts by weight of water to form a foot-receiving mortar composition.

Example  2

(78 g) of 8031H (Germany Barker), 149S dispersant (1.5 g), Stabilizer MT retarder (manufactured by DuPont de Nemours and Company) in the formulation according to Example 1 Avebe) (1.5g), antifoaming agent of P841 (2g), dust reducing agent of BWW40 (Germany JRS) (18g), water repellent material of Ca-stearate (manufacturer: (30 g), a water repellency improving agent for Zn-stearate (manufacturer: no substrate required for the manufacturer) (30 g), and a filler of Sioxid HD (OFZ, Europe) (37.5 g) ) And water (15%) parts by weight to form a foot-receiving mortar composition.

Example  3

(78 g), a dispersant of 149S (1.5 g), and a retarder of Stabilizer MT (manufactured by Nippon Kayaku Co., Ltd.) (Netherlands) with a composition of increasing retarder added in the formulation according to Example 1 Water repellent material of Ca-stearate (manufacturer: no reference to the manufacturer) was used as the antifoaming agent (2 g) of P841 (Avebe), 2 g of P841, dust reducing agent of BWW40 (Germany JRS) (30 g), a water repellency improving agent for Zn-stearate (manufacturer: no substrate required for the manufacturer) (30 g), and a filler of Sioxid HD (OFZ, Europe) (37.5 g) ) And water (15%) parts by weight to form a foot-receiving mortar composition.

Example  4

(78 g) of 8031H (Germany Barker), 149 g of a dispersing agent (1.5 g), Stabilizer MT's retarder (manufacturer), and a water-repellent material were added in the same manner as in Example 1, (2 g) of P841, a dust reducing agent (18 g) of BWW 40 (Germany JRS), 25 g of water repellent material of Ca-stearate (manufacturer: no reference to the manufacturer) (30 kg) of Zn-stearate water repellency improving agent (manufacturer) and a filler (37.5 g) of Sioxid HD (OFZ, Europe) were weighed with 40 kg of general remit (Hanil Cement Co., Ltd.) And mixed together to form a foot-receiving mortar composition.

Example  5

(78 g) of 8031H resin (Germany Barker), 149 g of dispersant (1.5 g), Stabilizer MT's retarder (manufacturer), and the water-repellent material were added in the same manner as in Example 1, (3 g), antifoaming agent of P841 (2 g), dust reducing agent of BWW 40 (18 g), water repellent material of Ca-stearate (manufacturer: no need for manufacturer) (35 g) (30 kg) of Zn-stearate water repellency improving agent (manufacturer) and a filler (37.5 g) of Sioxid HD (OFZ, Europe) were weighed with 40 kg of general remit (Hanil Cement Co., Ltd.) And mixed together to form a foot-receiving mortar composition.

Example  6

(78 g) of 8031H (Germany Barker), 149 g of a dispersant (1.5 g) of a 149S, and a retarder of Stabilizer MT (manufactured by Mitsubishi Kagaku Co., Ltd.) (3 g), antifoaming agent (2 g) of P841 (2 g), dust reducing agent of BWW40 (18 g), water repellent material (manufacturer) of Ca-stearate (30 g), Zn- (Manufactured by Hanil Cement Co., Ltd.) (40 kg) and water (15%) were weighed and mixed with 25 g of water repellency improving agent (manufacturer) and 37.5 g of Sioxid HD filler To form an accepting mortar composition.

Example  7

(78 g) of 8031H (Germany Barker), 149 g of a dispersant (1.5 g) of a 149S, and a retarder of Stabilizer MT (manufactured by Mitsubishi Kagaku Kogyo Co., Ltd.) in a composition in which the water repellency- (3 g), antifoaming agent (2 g) of P841 (2 g), dust reducing agent of BWW40 (18 g), water repellent material (manufacturer) of Ca-stearate (30 g), Zn- (35 kg) and a filler (37.5 g) of Sioxid HD (OFZ, Europe) were mixed together with 40 kg of general remit (Hanil Cement Co., Ltd.) and 15 parts of water (15% To form an accepting mortar composition.

Example  8

(78 g) of 8031H (Germany Barker), 149 g of a dispersant (1.5 g) of a 149S, and a retarder of Stabilizer MT (manufactured by Mitsubishi Kagaku Kogyo Co., Ltd.) in a composition in which the use amount of the dust reducing agent was reduced in the blend according to Example 1 (3 g), antifoaming agent (2 g) of P841 (2 g), dust reducing agent of BWW40 (15 g), water repellent material (manufacturer) of Ca-stearate (30 g), Zn- (Manufactured by Hanil Cement Co., Ltd.) (40 kg) and water (15%) by weight were mixed with 30 g of a water repellency improving agent (manufacturer) (30 g) and a filler of Sioxid HD To form an accepting mortar composition.

Example  9

(78 g) of 8031H (Germany Barker), 149 g of a dispersant (1.5 g) of a 149S, and a retarder of Stabilizer MT (manufactured by Mitsubishi Kagaku Kogyo Co., Ltd.) in a composition in which the use amount of the dust reducing agent was increased in the blend according to Example 1 (3 g), antifoaming agent (2 g) of P841 (2 g), dust reducing agent (21 g) of BWW 40 (Germany JRS), water repellent material (manufacturer) of Ca-stearate (30 g), Zn- (Manufactured by Hanil Cement Co., Ltd.) (40 kg) and water (15%) by weight were mixed with 30 g of a water repellency improving agent (manufacturer) (30 g) and a filler of Sioxid HD To form an accepting mortar composition.

The properties of the foot-receiving mortar compositions prepared in Examples 1 to 9 were evaluated and are shown in Table 1 below.

Experiment Item Plain Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 KS standard Slurry specific gravity 1.90 1.91 1.89 1.87 1.89 1.87 1.89 1.88 1.90 1.86 - Flow experiment 172.82 182.55 175.61 170.55 178.62 179.8 179.53 177.3 174.48 180.4 - Compressive strength 7 days 8.81 10.26 10.1 9.5 10.28 9.12 9.85 9.32 10.30 9.7 Bond strength
(N / mm2) 7 days 0.63 0.68 0.65 0.55 0.7 0.59 0.72 0.61 0.66 0.6 Absorption rate 7 days One 0.52 0.86 0.51 0.91 0.5 0.93 0.58 0.53 0.53 Compressive strength 28th 12 13.80 12.68 10.81 13.82 11.46 13.81 12.26 12.97 12.1 7 or more Bond strength
(N / mm2) 28th 0.8 1.2 1.18 1.09 1.25 1.12 1.24 1.11 1.18 1.05 1.03 or higher Absorption rate 28th One 0.45 0.82 0.43 0.88 0.45 0.90 0.46 0.44 0.43 0.7 or less Permeability One 0.38 0.74 0.37 0.9 0.41 0.91 0.43 0.38 0.38 0.7 or less

exam

In the flow test described above, the mortar is formed into a layer having a thickness of about 25 mm by using the flow table and support specified in KS L 5111, put in a frame arm, and twist 20 times with a tamper. Make sure that the pressure is sufficient to keep the frame evenly filled. Next fill the frame with mortar and roll it like on the first floor. Then, flatten it with a sawing motion using a trowel in a plane. Remove water completely from the outskirts. After finishing the dough, lift the frame from the mortar after 1 minute. Immediately drop the table 25 times at a height of 12.7mm for 15 seconds. The flow is measured by measuring the average diameter of the mortar with at least four diameters at approximately the same interval and using the average value.

For the compressive strength test, the mortar mixed according to KS L 5105 is cured for 7 days and 28 days, and the maximum compressive strength is obtained by using a compressive strength measuring instrument.

In the above, the mortar mixed according to KS L 5105 was molded by using a metal mold having an inner dimension of 70 * 70 * 20 mm, cured for 24 hours at a temperature of 203 and a humidity of 80% or more, Cure in water at 20 ± 2 ° C. After curing in the curing room for more than 7 days, it is polished sufficiently to form the test base plate when molding using the 150th abrasive paper specified in KS L 6003. Put the prepared base plate on the upper tensile jig gently, gently rub it on it, and put a weight of 1 kg on it again carefully to remove the adhesive that has been released around it. Leave for 24 hours, remove the weights, make grooves around the steel jig until it touches the base of the thin wedge, and determine the maximum tensile load (T) using a tensile bond strength machine.

Bond strength (N / mm ² ) = T / 1600 (T = maximum tensile load (N))

In the above water absorption test, the mortar of the test specimen conforms to KSL 5105 and the mold of the test specimen shall be made of metal or plastic with inner diameter of 150 mm and inner height of 40 mm and the inner surface should be smoothly smoothed. Paste each layer about 80 times with a test tamper. Curing is carried out after 48 hours from molding of the test specimen, and then placed in a humidity chamber at a temperature of 203 ° C and a humidity of 80% or more for 19 days. After drying at standard temperature of 203 ° C and relative humidity of 605% until constant weight, test according to point 5 of KS F 2609 and calculate according to 6.

In the permeability test described above, the permeability test is performed by first measuring the mass (W) of the dried test piece, and then waterproofing the test piece side with paraffin or epoxy resin. Then, after the mass (W1) of the test specimen was measured with the waterproofing agent completely cured, a circular hole having a diameter of 50 mm was formed at the center of both the upper and lower sides of the specimen using a permeability testing apparatus shown in FIG. 1 of KS F 2451 The rubber gasket of about 10 mm or more is tightly and uniformly tightened, and then a water pressure of 1 N / cm ² is applied from the upper surface for 1 hour. Then, remove the water sample from the water permeability test apparatus, wipe off the moisture on the surface immediately, and measure the mass (W2). The permeability test was carried out on three mixed waterproofing agents and three non-waterproofing agents, and the results are expressed as an average value. The evaluation of the permeability and the permeability ratio is expressed by the following formula.

Water permeability (g) = W2-W1

Percentage of permeability (%) = Permeation amount (g) of a specimen mixed with a waterproofing agent / Permeation amount (g) of a specimen not containing a waterproofing agent * 100

When 200g of small size product (Example 1) 200g was applied to general remit (1Bag-40kg of Hanil Cement Co., Ltd.), quality of a certain level or more was secured in all quality items. Flow performance was increased from 173mm to 182mm , And the compressive strength was improved by about 20% and 10% on both the 7th and 28th days. The adhesion strength was also improved by 67% and the water absorption and permeability were also improved to ensure a very durable quality.

In particular, the absorption rate is reduced by about 55%, and the permeability is also reduced by 60% as compared with the conventional remiteral, thereby improving the durability and water resistance of the product.

When the amount of the water repellent material and the water repellent performance improving agent is small, the water repellency, the water absorption rate, the water permeability are decreased, the water resistance is poor, and the adhesion strength and compressive strength are decreased.

When the amount of the retarder used is small, the material separating and repairing performance is deteriorated, and when it is large, deterioration of workability, adhesion strength and compressive strength are decreased.

When the amount of the dust reducing agent used is small, the finishability of the surface decreases, and if it is large, the workability deteriorates, and the adhesive strength and compressive strength decrease.

Claims (11)

1 to 55 wt% of a resin, 0.05 to 5 wt% of a dispersant, 1 to 5 wt% of a retarder , 1 to 5 wt% of a defoamer, 1 to 10 wt% of a dust abatement agent, 1 to 50 wt% of a water repellent material, To 50% by weight of a filler and 3 to 30% by weight of a filler. The method of claim 1, wherein the resin is a hydrophobic resin, powdered resin VAE, powdery acrylic resin, SBR resin, a PVA resin, a regenerated acid polymer of ethylene vinyl La high us by the coupling reaction of the acid carboxyl group with the cement Ca ⁺⁺ Wherein the resin is a resin containing at least one member selected from the group consisting of ethylene vinyl laurate, ethylene vinyl acetate, vinyl chloride, and acrylic polymer for maintaining the adhesive strength and waterproofness. 3. The foot-receiving mortar or remedial additive according to claim 2, wherein the resin is VINAPAS 8031H or 8034H. The foot-receiving mortar or remy add additive according to claim 1, wherein the dispersant is at least one dispersing agent selected from the group consisting of lignin-based, naphthalene-based, melamine-based and polycarboxylic acid-based dispersants. 5. The foot-receiving mortar or remit additive according to claim 4, wherein the dispersant is ferramine con pack 149S. The method of claim 1, wherein the retarder is selected from the group consisting of lignin sulfonic acid, gluconic acid salt, polyol polymer complex, citric acid, tartaric acid, MUCIC ACID, gluconic acid, salicylic acid, HEPTONIC ACID, MALIC ACID, Tannic acid, saccharic acid, sugar (SUGAR), or any combination thereof. The foot-receiving mortar or remiteral additive according to claim 1, wherein the antifoaming agent is an alcohol-based, silicone-based or EOPO-based antifoaming agent, and is a defoaming agent containing at least one silicone-based antifoaming agent and EOPO-based antifoaming agent. 8. The foot-receiving mortar or remyde additive of claim 7, wherein the defoamer is a defoamer of P841. The foot-receiving mortar or remit additive according to claim 1, wherein the dust abatement agent is Arbocel LD, Germany. 2. The foot-receiving mortar or remedial additive of claim 1, wherein the water repellent material is calcium stearate and the water repellency improving agent is inorganic zinc stearate or aqueous silicone. The filler according to claim 1, wherein the filler is at least one selected from the group consisting of calcium carbonate powder, talc, abrasive powder, slag fine powder, fly ash, silica fume, and mineral fiber. Additive additive.