KR19990025933A - Mortars containing ocher, mineral or rock powder - Google Patents

Abstract

The present invention relates to a mortar containing loess, mineral or rock powder, and more specifically, to a mortar powder by stirring and mixing calcium lactate and magnesium oxide in loess, mineral or rock powder, and then separately preparing a new solidified adhesive. Manufactured and used together with ordinary sand, not only far-infrared radiation effect due to thermal insulation, humidity control, and heat storage of loess, mineral or rock powder, but also excellent compressive strength, tensile strength and durability to improve the living environment. It is about mortar that can be applied.

Description

Mortar containing ocher, mineral or rock powder

The present invention relates to a mortar containing loess, mineral or rock powder, and more specifically, to a mortar powder by stirring and mixing calcium lactate and magnesium oxide in loess, mineral or rock powder, and then separately preparing a new solidified adhesive. Manufactured and used together with ordinary sand, not only far-infrared radiation effect due to thermal insulation, humidity control, and heat storage of loess, mineral or rock powder, but also excellent compressive strength, tensile strength and durability to improve the living environment. It is about mortar that can be applied.

It is already well known that loess, mineral or rock powder can be used to improve the living environment and to create a beneficial environment. In particular, it is well known that the loess structure of the loess has thermal insulation, humidity control and far-infrared radiation effect due to heat storage. Known.

However, despite the development of architectural culture, such as improvement of the residential environment, the construction process using these loess, minerals or rock powders is difficult, and the rigidity after construction is so much lower than that of cement. In addition to weak water resistance and hardness, there is a problem of generating dust, etc. Natural loess or mineral or rock powder is currently not properly utilized.

In addition, conventionally used solidifying adhesives have been used inorganic solidifying adhesives, organic solidifying adhesives and cement, when using an inorganic solidifying adhesive, there is a problem that the tensile strength is lowered, and dust after drying, a solidified adhesive made of an organic polymer When using the drying rate is too slow, there is a problem in that a large crack (crack) is formed due to the high difference in tension depending on the dry part during drying.

In order to improve various problems of loess, minerals or rock powders as described above, the present invention is prepared by stirring and mixing calcium lactate and magnesium oxide to existing loess, minerals or rock powders, and separately from the new composition. By preparing a solidified adhesive and mixing it with the above-mentioned mortar and ordinary sand, it is excellent in compressive strength, tensile strength and durability as well as thermal insulation, humidity control, and far-infrared radiation effect due to heat storage of loess, mineral or rock powder. The aim is to provide mortar that can be applied to improve the living environment.

In the present invention, in the mortar, at least one selected from loess, mineral and rock powder, 30 to 70% by weight, calcium lactate (CaSO ₄ · 2H ₂ O) 30% by weight or less, magnesium oxide (MgO) 20 to 70% by weight It is characterized by being contained.

Referring to the present invention in more detail as follows.

In the present invention, a mortar is prepared by stirring and mixing ocher, mineral or rock powder, calcium lactate (CaSO ₄ · 2H ₂ O), and magnesium oxide (MgO) together with a conventional mortar component, and solidifying the composition newly prepared in the present invention. It is related with the mortar which adds and uses an adhesive agent.

Ocher powder is 27.06% by weight of aluminum oxide (Al ₂ O ₃ ), 57.52% by weight of silicon oxide (SiO ₂ ), 3.95% by weight of potassium oxide (K ₂ O), 1.47% by weight of titanium oxide (TiO ₂ ), ferric oxide (Fe) ₂ O ₃ ) 4.35 wt%, 2.70 wt% copper oxide (CuO) and 1.51 wt% zinc oxide (ZnO) [References; Japan Electric Review June 1997 issue, Baek Woo-hyun, Gyeongsang National University]. Minerals are used by selecting from biotite, kaolin, calcite, bentonite, feldspar, alum and serpentine. The rock is used by powdering quartz-monzonite, gneiss, rhyolite, tuff, and the like. In the present invention, one or more of these are selected and used alone or in combination. Even if the mortar is prepared by varying the mixing ratio, the physical properties of the mortar are not significantly affected.

Ocher, minerals and rock powder as described above may be contained alone, and more preferably used in combination according to the purpose of use. They contain 30 to 70% by weight of the total mortar, which is not good for far-infrared emissivity lowering and heat storage when their content is less than 30% by weight, and is also a critical problem in strength due to the disorder of solidification even if it exceeds 70% by weight. This is undesirable.

In addition, calcium lactate is added to less than 30% by weight in the total mortar in order to improve the shrinkage rate when drying after mixing, if there is no problem in shrinkage after solidification drying does not necessarily need to be added and mixed but other raw materials It is not preferable because there is a problem in strength, water resistance and emissivity of far infrared rays due to the percentage decrease of.

The present invention also contains 20 to 70% by weight of magnesium oxide in the total mortar for the purpose of solidifying ocher, elvan or ceramic powder. If the content of magnesium oxide is less than 20% by weight, there is a problem that the durability is low due to the low strength, etc. after the mortar construction, and even when added in excess of 70% by weight there is a problem due to the percentage decrease of other additives.

In addition, in the present invention, the mortar prepared in the above is added to the solidified adhesive newly prepared in the present invention when used in actual use and mixed with ordinary sand.

The solidified adhesive used in the present invention has been able to complement the problems of the organic or inorganic solidified adhesive by improving the strength and additive-free cement, crack prevention after construction, which has not been solved for a long time in the past, and thus strength, water resistance, impact resistance To increase and prevent dust generation. The components include 4 to 27% by weight of vinyl acetate, 0.2 to 1.5% by weight of acrylamide, 0.05 to 0.3% by weight of ethyl acrylate, 0.4 to 3% by weight of n-butyl acrylate, 10 to 40% by weight of magnesium chloride, Cydyl methacrylate (GMA) 0.05-15 wt%, water 40-70 wt%, other catalysts such as potassium pyrophosphate, ammonium persulfate, emulsifiers and dipropylene such as polyoxy ethylene nonylphenyl ether, sodium lauryl sulfate It consists of 0.5 to 3.0% by weight of plasticizers such as glycol n-butyl ether.

In the case of vinyl acetate, it is used for the purpose of adhesion between mortar powder, sand, and inorganic material after resination after the polymerization reaction, but if they are less than 4% by weight of the total content of the solidified adhesive, there is a problem in the binding of fine particles after the solidified adhesive. Also, if it exceeds 25% by weight because the internal drying is late when the solidified adhesive is also not preferable because there is a problem in the complete solidification.

Acrylamide is used to prevent small particles of polymerized resin from being dispersed and precipitated. If acrylamide is out of the above range, there is a problem in resin formation and storage.

Ethyl acrylate is added and used to enhance the surface friction fastness and adhesion of the resin, if it is out of the above range, there is a problem in the friction fastness after solidification adhesion, the hardness of the resin film when n-butyl acrylate also out of the above range Too high a crack or too low to have a lot of stretch, there is a problem in adhesion.

Magnesium chloride is a main constituent of the solidifying adhesive, which is a halogen compound capable of intensifying reaction with magnesium oxide, and if its content is less than 10% by weight of the total content of the solidifying adhesive, the solidification rate and strength Problems occur in the back, and even in excess of 40% by weight, there is a problem in that the phenomenon of condensation occurs by absorbing moisture as well as the obstacle to solidification.

In addition, when glycidyl methacrylate (G.M.A) is contained, problems arise in the modification and water resistance of the resin when the content thereof is particularly small.

In addition, the solidifying adhesive may contain, if necessary, less than 1% by weight of a catalyst such as potassium perphosphate, sodium bisulfate, ammonium persulfate, and less than 1.5% by weight of an emulsifier such as polyoxy ethylene nonylphenyl ether, sodium lauryl sulfate, and dipropylene glycol n-. It contains less than 1.5% by weight of plasticizers such as butyl ether, and these additives make up the range of 0.5 to 3.0% by weight of the total solidified adhesive content.

By using the mortar and the solidified adhesive prepared in the above to prepare a mortar containing one or more selected from the loess, elvan and ceramic powder for the purpose of the present invention, each amount of the solidified adhesive with respect to 100 parts by weight of mortar Add 30 to 100 parts by weight. This is because if the content ratio is less than the above ranges, there is a factor of complete solidification and decrease in strength, and in the case of exceeding the content ratio, it is also an obstacle to solidification.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited by Examples.

Preparation Examples 1A to 5A and Comparative Examples 1A to 7A: Preparation of Mortar

Next, using the ingredients and contents of Table 1, after drying them completely, they were pulverized in a powder stirrer to prepare a far-infrared emitter mortar consisting of loess, mineral or rock powder with an average particle size of 80 mesh or more.

division Preparation Example (% by weight) Comparative Example (Weight%) 1A 2A 3A 4A 5A 1A 2A 3A 4A 5A 6A 7A Ocher powder 20 20 60 20 20 10 0 60 Mineral powder 20 10 60 20 10 20 30 60 Rock powder 0 20 60 0 10 20 20 80 Calcium lactate 30 20 10 0 0 50 40 40 30 30 20 0 Magnesium oxide 30 30 30 40 40 10 20 10 20 10 20 20

Preparation Examples 1B to 6B and Comparative Examples 1B to 3B: Preparation of Solidified Adhesive

The components and contents of the following Table 2 were continuously added to the reactor containing 55% by weight of water, 0.3% by weight of potassium pyrophosphate catalyst, 1.5% by weight of emulsifier polyoxy ethylene nonylphenyl ether, and 0.3% by weight of plasticizer dipropylene glycol n-butyl ether. The reaction was carried out for 3 to 3.5 hours at 65 ~ 75 ℃. Then, the mixture was heated to 78 to 80 ° C. for 1 to 1.5 hours, cooled to 55 to 60 ° C. to remove unreacted substances under vacuum, and recooled to 35 to 40 ° C. to obtain a solidified adhesive.

division Preparation Example (% by weight) Comparative Example (Weight%) 1B 2B 3B 4B 5B 6B 1B 2B 3B Vinyl acetate 24.168 20.605 16.484 12.365 8.244 4.123 36.317 32.254 28.191 Acrylamide 1.447 1.123 0.987 0.740 0.493 0.246 2.174 1.931 1.688 Ethyl acrylate 0.288 0.246 0.197 0.147 0.098 0.050 0.434 0.385 0.337 n-butyl acrylate 0.640 2.251 1.801 1.350 0.900 0.449 3.967 3.524 3.080 Magnesium chloride 15 20 25 30 35 40 0 5 10 G.M.A 0.346 0.295 0.236 0.177 0.118 0.059 0.520 0.462 0.404 water 55 55 55 55 55 55 55 55 55 Etc catalyst 0.241 0.227 0.213 0.198 0.184 0.170 0.284 0.269 0.255 Emulsifier 1.20 1.136 0.065 0.994 0.923 0.852 1.42 1.349 1.278 Plasticizer 0.251 0.236 0.222 0.207 0.192 0.177 0.296 0.281 0.266

Examples 1 to 30: use of mortar and solidified adhesive

As shown in the following Table 3, after mixing about 50 to 200 parts by weight of conventional sand with respect to 100 parts by weight of the mortar prepared from the production Examples 1A to 5A, the solidified adhesive prepared in Preparation Examples 1B to 6B 30 to 100 parts by weight was added to obtain a mortar according to the present invention. And, using the resulting mortar reported to measure the compressive strength, tensile strength and durability, the results are shown in Table 3 below.

Mortar Solidification glue Effect ^Co. , ^Ltd. Mortar Solidification glue Effect ^Co. , ^Ltd. Preparation Example 1A Preparation Example 1B ○ Preparation Example 3A Preparation Example 4B ◎ Preparation Example 2B ◎ Preparation Example 5B ○ Preparation Example 3B ◎ Preparation Example 6B ○ Preparation Example 4B ◎ Preparation Example 4A Preparation Example 1B ○ Preparation Example 5B ◎ Preparation Example 2B ◎ Preparation Example 6B ○ Preparation Example 3B ◎ Preparation Example 2A Preparation Example 1B ○ Preparation Example 4B ◎ Preparation Example 2B ○ Preparation Example 5B ◎ Preparation Example 3B ○ Preparation Example 6B ○ Preparation Example 4B ◎ Preparation Example 5A Preparation Example 1B ◎ Preparation Example 5B ◎ Preparation Example 2B ◎ Preparation Example 6B ○ Preparation Example 3B ◎ Preparation Example 3A Preparation Example 1B ○ Preparation Example 4B ◎ Preparation Example 2B ○ Preparation Example 5B ○ Preparation Example 3B ◎ Preparation Example 6B ○ Co., Ltd. ◎: Very good compressive and tensile strength ○: Good compressive and tensile strength ◇: Normal compressive and tensile strength △: Insufficient durability ×: Not available

Comparative Examples 1 to 21: Combination use of mortar and solidified adhesive

As shown in Table 4, it was carried out in the same manner as in Example except for using the mortar prepared in Comparative Examples 1A to 7A and the solidified adhesive prepared in Comparative Examples 1B to 3B. Is shown in Table 4.

Mortar Solidification glue Effect ^Co. , ^Ltd. Mortar Solidification glue Effect ^Co. , ^Ltd. Comparative Example 1A Comparative Example 1B × Comparative Example 5A Comparative Example 1B × Comparative Example 2B × Comparative Example 2B × Comparative Example 3B × Comparative Example 3B × Comparative Example 2A Comparative Example 1B × Comparative Example 6A Comparative Example 1B × Comparative Example 2B × Comparative Example 2B × Comparative Example 3B × Comparative Example 3B × Comparative Example 3A Comparative Example 1B × Comparative Example 7A Comparative Example 1B × Comparative Example 2B × Comparative Example 2B × Comparative Example 3B △ Comparative Example 3B △ Comparative Example 4A Comparative Example 1B × Comparative Example 2B × Comparative Example 3B △ Co., Ltd. ◎: Very good compressive and tensile strength ○: Good compressive and tensile strength ◇: Normal compressive and tensile strength △: Insufficient durability ×: Not available

Comparative Examples 22 to 36: Combination Use of Mortar and Solidified Adhesive

As shown in Table 5, except that using the mortar prepared from Preparation Examples 1A to 5A and the solidified adhesive prepared in Comparative Examples 1B to 3B, the same procedure as in Example was performed. Is shown in Table 5.

Mortar Solidification glue Effect ^Co. , ^Ltd. Mortar Solidification glue Effect ^Co. , ^Ltd. Preparation Example 1A Comparative Example 1B × Preparation Example 4A Comparative Example 1B × Comparative Example 2B × Comparative Example 2B × Comparative Example 3B △ Comparative Example 3B △ Preparation Example 2A Comparative Example 1B × Preparation Example 5A Comparative Example 1B × Comparative Example 2B × Comparative Example 2B × Comparative Example 3B △ Comparative Example 3B △ Preparation Example 3A Comparative Example 1B × Comparative Example 2B △ Comparative Example 3B △ Co., Ltd. ◎: Very good compressive and tensile strength ○: Good compressive and tensile strength ◇: Normal compressive and tensile strength △: Insufficient durability ×

Comparative Examples 37 to 78: Combination Use of Mortar and Solidified Adhesive

As shown in Table 6, it was carried out in the same manner as in Example except for using the mortar prepared from Comparative Examples 1A to 7A and the solidified adhesive prepared in Examples 1B to 6B. Is shown in Table 6.

Mortar Solidification glue Effect ^Co. , ^Ltd. Mortar Solidification glue Effect ^Co. , ^Ltd. Comparative Example 1A Preparation Example 1B × Comparative Example 4A Preparation Example 4B ◇ Preparation Example 2B × Preparation Example 5B ◇ Preparation Example 3B × Preparation Example 6B ◇ Preparation Example 4B × Comparative Example 5A Preparation Example 1B △ Preparation Example 5B × Preparation Example 2B × Preparation Example 6B × Preparation Example 3B × Comparative Example 2A Preparation Example 1B △ Preparation Example 4B × Preparation Example 2B ◇ Preparation Example 5B × Preparation Example 3B ○ Preparation Example 6B × Preparation Example 4B ○ Comparative Example 6A Preparation Example 1B ◇ Preparation Example 5B ○ Preparation Example 2B ◇ Preparation Example 6B ◇ Preparation Example 3B ◇ Comparative Example 3A Preparation Example 1B △ Preparation Example 4B △ Preparation Example 2B × Preparation Example 5B △ Preparation Example 3B × Preparation Example 6B △ Preparation Example 4B × Comparative Example 7A Preparation Example 1B ◇ Preparation Example 5B × Preparation Example 2B ○ Preparation Example 6B × Preparation Example 3B ◇ Comparative Example 4A Preparation Example 1B ◇ Preparation Example 4B ◇ Preparation Example 2B ◇ Preparation Example 5B △ Preparation Example 3B ◇ Preparation Example 6B △ Co., Ltd. ◎: Very good compressive and tensile strength ○: Good compressive and tensile strength ◇: Normal compressive and tensile strength △: Insufficient durability ×: Not available

As described above, the mortar according to the present invention is extremely excellent in compressive strength, tensile strength and durability and can replace the cement, as well as loess, mineral or rock-specific thermal insulation, humidity control, far-infrared radiation effect by heat storage There is a very beneficial effect on the health of modern people.

Claims (6)

30 to 70% by weight of at least one selected from loess, mineral and rock powder, 30% by weight or less of calcium lactate (CaSO ₄ · 2H ₂ O) and 20 to 70% by weight of magnesium oxide (MgO) Mortar characterized in that. The mortar of claim 1, wherein the ocher comprises aluminum oxide, silicon oxide, potassium oxide, titanium oxide, ferric oxide, copper oxide, and zinc oxide. The mortar of claim 1, wherein the mineral is one or more selected from biotite, kaolin, lobite, bendonite, feldspar, alum, and serpentine. The mortar of claim 1, wherein the rock is at least one selected from quartz-monzonite, gneiss, rhyolite, and tuff. The mortar of claim 1, wherein 30 to 100 parts by weight of the solidifying adhesive is added to 100 parts by weight of the mortar. The method according to claim 4, wherein the solidifying adhesive is vinyl acetate 4 to 27% by weight, acrylamide 0.2 to 1.5% by weight, ethyl acrylate 0.05 to 0.3% by weight, n-butyl acrylate 0.4 to 3% by weight, magnesium chloride 10 ~ 40% by weight, 0.05 to 15% by weight of glycidyl methacrylate and 40 to 70% by weight of water, mortar, characterized in that made by adding 0.5 to 3.0% by weight of the catalyst, emulsifier and plasticizer as needed.