TWI580660B - Manufacturing method of cement mortar product applied to cultural and creative product - Google Patents

Description

Manufacturing method of cement mortar product applied to Wenchuang products

The present invention relates to a cement mortar product, and more particularly to a method of manufacturing a cement mortar product.

Cement mortar refers to mortar composed of cement, fine aggregate (particle size less than 4.75mm) and water, and lime and additives added as needed; and coarse aggregate (greater than 4.75) Mm) is concrete, the two are not the same. Among them, there are many types of cement, and depending on the type, they are applied in different positions or perform different functions. For example, oxychloride cement is made of magnesium oxide and magnesium chloride, which is often used to whitewash exterior walls or floors. Sulfur-containing cements are highly adhesive and are often used as coatings for high temperatures or for sealing gaps or Joints; high alumina cements contain a high proportion of alumina and can be used to quickly shape cement mortar products.

In different types of cement, it can be divided into different strength grades according to the different cement strength, and the performance of different cement varieties and strength grades is also very different. Also, the speed of the bond will also affect the product being applied. Therefore, depending on the characteristics of the product, it is important to choose the right type of cement and strength.

At present, the application of cement mortar products mainly lies in the field of architecture or in the application of sculpture art. However, the application of cement mortar products has not been found in other fields, such as small Wenchuang products. In general, Wenchuang products refer to products with culture or creativity. This refers to creative products made of cement mortar, which can be, for example, stationery, or decorative accessories such as rings and watches. Of course, there is no corresponding cement. Information such as type, strength or cementation speed.

In view of the above problems, the present invention provides a manufacturer of cement mortar products. The method first forms a hydraulic composition by adding a predetermined proportion of silicate cement and calcium sulphoaluminate cement, and the hydraulic composition is mixed with a predetermined proportion of the mixing liquid to form a small article. Create a product of cement mortar products.

To achieve the above object, a method of manufacturing a cement mortar product according to the present invention comprises the steps of: forming a hydraulic composition comprising a substantially 40 to 65 weight percent silicate cement, and substantially 10.5 to 36% by weight of calcium sulphoaluminate cement; adding a mixing liquid to the hydraulic composition, the hydraulic composition is substantially 75 to 85 weight percent, and the content of the mixing liquid is substantially 15 to 25 Percentage by weight, and the mixing liquid comprises a water and a water reducing agent; mixing the mixing liquid and the hydraulic composition, and forming a cement mortar, the fluidity of the cement mortar is substantially 200 to 280 mm; the cement mortar is injected into a mold ; standing for a predetermined period of time and forming a cement mortar product; and removing the cement mortar product.

In an embodiment, the method of manufacturing the cement mortar product further comprises immersing the cement mortar product in a hardener.

In one embodiment, the method of manufacturing a cement mortar product further comprises spraying a sealant on the cement mortar product.

In one embodiment, the method of manufacturing a cement mortar product further comprises applying a protective agent to the cement mortar product.

In one embodiment, the hydraulic composition further comprises a substantially 2.5 to 3.5 weight percent granited stone powder and substantially 0.75 to 1.5 weight percent cerium ash powder.

In one embodiment, the hydraulic composition further comprises a substantially 0.75 to 6 weight percent toner powder.

In one embodiment, the water content of the mixing liquid is substantially 80 to 90 weight percent, and the water reducing agent content is substantially 10 to 20 weight percent.

In one embodiment, the hydraulic composition further comprises substantially 14 to 42 weight percent cerium oxide (SiO ₂ ).

In one embodiment, the composition of the silicate cement comprises substantially 61 to 67 weight percent calcium oxide (CaO), substantially 19 to 23 weight percent cerium oxide (SiO ₂ ), substantially 2.5 to 6 weight percent of aluminum oxide (Al ₂ O ₃ ), and substantially 1.5 to 4.5 weight percent of sulfur (S).

In one embodiment, the composition of the niobate cement further comprises substantially 0.1 to 6 weight percent of ferric oxide (Fe ₂ O ₃ ).

According to the invention, the method for manufacturing a cement mortar product according to the present invention is first formed by mixing 40 to 65 weight percent of silicate cement and 10.5 to 36 weight percent of calcium sulphoaluminate cement. Hydraulic composition. Further, after mixing 75 to 85 weight percent of the hydraulic composition with 15 to 25 weight percent of the mixing liquid, a cement mortar can be formed, and the cement mortar is injected into the mold and allowed to stand for a predetermined time to form an applicable Cement mortar products for small Wenchuang products.

1, 1a, 1b‧‧‧ mould

11‧‧ ‧ parting line

12‧‧‧Cylindrical structure

2‧‧‧Cement mortar products

S10~S74‧‧‧Steps

1 is a schematic flow chart of a method for manufacturing a cement mortar product according to an embodiment of the present invention.

Figure 2 is a schematic view of the mold of the step S40 shown in Figure 1.

Figure 3 is an exploded perspective view of the mold shown in Figure 2.

4 is a schematic view of a cement mortar product according to an embodiment of the present invention.

5 is a schematic flow chart of a method for manufacturing a cement mortar product according to another embodiment of the present invention;

Hereinafter, a method of manufacturing a cement mortar product according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements and steps will be described with the same reference numerals.

Firstly, the present invention discloses a method for manufacturing a cement mortar product, and the cement mortar product of the present embodiment refers to a creative product made of cement mortar, which can be, for example, a decorative accessory such as a stationery or a ring, or a watch, a clock, or a glue. Taiwan and so on.

1 is a schematic flow chart of a method for manufacturing a cement mortar product according to an embodiment of the present invention. Please refer to FIG. The method for manufacturing a cement mortar product of the present embodiment comprises the steps of: forming a hydraulic composition comprising a substantially 40 to 65 weight percent silicate cement, and a substantially 10.5 to 36 weight percent sulfur Calcium aluminate cement (step S10); adding a mixing liquid to the hydraulic composition, the hydraulic composition is substantially 75 to 85 weight percent, and the mixing liquid is substantially 15 to 25 weight percent. And the mixing liquid comprises a water and a water reducing agent (step S20); mixing the mixing liquid and the hydraulic composition, and A cement mortar is formed (step S30); the cement mortar is injected into a mold (step S40); it is allowed to stand for a predetermined time, and a cement mortar product is formed (step S50); and the cement mortar product is taken out (step S60).

In step S10, silicate cement and calcium sulfoaluminate cement of different predetermined ratios are first mixed to form a hydraulic composition. In other words, the hydraulic composition of the present embodiment is composed of a predetermined proportion of silicate cement and calcium sulphoaluminate cement. In general, cement mortar can be classified into hydraulic cement and non-hydraulic cement depending on its cementing properties. The cement mortar product of the present embodiment is a hydraulic cement, and the hydraulic cement refers to a cement mortar material that will condense and harden in water, such as silicate cement, swellable cement, and loser. Gas cement, and iron ore cement. In contrast, non-hydraulic cements do not require water to form solids such as gypsum and lime.

In step S10, different proportions of silicate cement and calcium sulphoaluminate cement are mixed to form a hydraulic composition, wherein the content of silicate cement is substantially between 40 and 65 weight percent, and the sulphur aluminum The content of the calcium salt cement is substantially between 10.5 and 36% by weight, and in the present embodiment, 14 to 42% by weight of cerium oxide may be further added. The following weight percentages are expressed in %. In addition, the nature described herein includes the error in weighing, for example, 39.9% of the silicate cement is substantially 40%.

The hydraulic composition of the present embodiment is mainly composed of a hydraulic cement of silicate cement and a calcium sulphoaluminate cement. Specifically, the tantalate cement is also known as Portland cement. In this embodiment, the tantalate cement used is the first type Portland cement, which is made of tantalate cement clinker ( Clinker), 0.1%~5% limestone or granulated blast furnace slag, and an appropriate amount of gypsum (after grinding). In this embodiment, the composition of the citrate cement includes calcium oxide (CaO), cerium oxide (SiO ₂ ), aluminum oxide (Al ₂ O ₃ ), and sulfur (S), wherein the content of calcium oxide is Between 61% and 67%, the content of cerium oxide is between 19% and 23%, the content of aluminum oxide is between 2.5% and 6%, and the content of sulfur is between 1.5% and 4.5%. %between. And preferably, in an embodiment, the composition of the silicate cement may further comprise 0.1% to 6% of ferric oxide (Fe ₂ O ₃ ).

In addition to the cerium oxide in the silicate cement, the hydraulic composition of the present embodiment may further contain more cerium oxide as described above, and the weight percentage thereof is 14% to 42%, and the calcium sulphoaluminate cement And cerium oxide (SiO ₂ ) can be collectively referred to as quick-drying cement, which has a faster curing (drying) time than silicate cement, for example, curing within 1 to 2 hours, and during curing, early Strong strength and other characteristics. Moreover, the TRU® Self-Leveling cement of the Rapid Dry Cement Company of the present embodiment contains 30% to 60% of calcium sulphoaluminate cement and 40 to 70% of cerium oxide (SiO _{2 ).} ).

In practice, the ratio of silicate cement to quick-drying cement can be adjusted depending on the type of cement mortar product or depending on the season. For example, when used on stationery, such as pen tube, the ratio of silicate cement to quick-drying cement can preferably be 1:1, so the hydraulic composition can be made up of 50% silicate cement and 50% quick-drying. The composition of cement; the ratio of silicate cement to quick-drying cement can also be 11:9, which is composed of 55% silicate cement and 45% quick-drying cement. More preferably, the hydraulic composition may be composed of 48% silicate cement and 48% quick-drying cement, and is doped with other components, as further described. For decorative parts, such as rings, the ratio of silicate cement to quick-drying cement can be 17:30, which can be composed of 34% silicate cement and 60% quick-drying cement. And doped with other ingredients. In addition, the ratio of silicate cement to quick-drying cement can be adjusted according to seasonal variations. For example, the temperature in winter is low and the moisture is heavy. The curing (drying) speed of cement mortar products is slow, which can improve the adjustment and quick drying. The proportion of cement and the proportion of silicate cement.

In this embodiment, the composition of the cement pen (cement mortar product) is taken as an example. In step S10, 55 g of silicate cement and 45 g of quick-drying cement are taken, and mixed to form 100 g of hydraulic property. Composition. Wherein, the mixed hydraulic composition can be subjected to a grinding process to reduce the particle size so that the particle size after grinding is less than 1 mm, preferably less than 0.5 mm.

In step S20, a mixing liquid is added to the aforementioned hydraulic composition. In this embodiment, the main component of the mixing liquid is water and contains a water-reducing admixture. Specifically, the content of the water of the mixing liquid is substantially between 80% and 90%, and the content of the water reducing agent is substantially between 10% and 20%, in the present embodiment, 85%. The mixing liquid composed of water and 15% water reducing agent is taken as an example. In addition, the water-reducing agent of the present embodiment is an additive which can reduce the amount of water for mixing under the same conditions of the use of the hydraulic composition. In the present embodiment, the water-reducing agent uses the polycarboxylic acid of Takemoto Oil Co., Ltd. system (Poly-carboxylic acid) high performance water reducer. However, if the total weight percentage of the mixture formed by the hydraulic composition and the mixing liquid is regarded as 100%, the hydraulic composition accounts for substantially between 75% and 85% of the mixture, and the mixing liquid accounts for The content of the mixture is substantially between 15% and 25%. Preferably, the proportion of the hydraulic composition may be between 80% and 85%, and the proportion of the mixing liquid may be between 15% and 20%. In the present embodiment, about 83% of the hydraulic composition and about 17% of the mixing liquid are exemplified. Here, 100 g of the aforementioned hydraulic composition (solid powder) was taken, and another 20 g of a mixing liquid containing 17 g of water and 3 g of a water reducing agent was taken, and then, in step S30, the mixing liquid and water were mixed. The composition is hard and forms a cement mortar.

In other words, in step S30, the above 100 g of the hydraulic composition (solid powder containing 55 g of silicate cement and 45 g of quick-drying cement) is taken first, and 20 g of the mixing liquid (containing 17 g of water and 3 g of water reducing agent) is suspended. The hydraulic composition is gradually added, and the hydraulic composition and the mixing liquid are simultaneously stirred and mixed. After about 3 minutes of stirring and mixing, a cement mortar having a water-to-binder ratio of about 20/100 can be formed. In addition, the cement mortar prepared by the same component ratio and method in step S30 has a fluidity of about 200 to 280 mm, and a preferred fluidity of 230 to 250 mm. The term "cement mortar" as used in this embodiment refers to a product in which the hydraulic composition and the mixing liquid are uniformly mixed without being injected into the mold.

Next, in step S40, the cement mortar described above is injected into a mold. 2 is a schematic view of the mold of the step S40 shown in FIG. 1, and FIG. 3 is an exploded view of the mold shown in FIG. 2, which is also shown in FIG. 2 and FIG. As described above, the cement mortar product of the present embodiment is described by taking a cement pen tube as an example, and the corresponding mold 1 is as shown in FIGS. 2 and 3. In step S40, the cement mortar formed by mixing the hydraulic composition and the mixing liquid is injected into the mold 1, and in the technical field to which the present invention pertains, it may also be referred to as pouring the cement mortar into the mold 1. In the present embodiment, a mold in which a cement mortar is injected into a two-piece combination is taken as an example, but not limited thereto, a one-piece mold may be used, and an upper cover may be added to the upper portion. The mold 1 is divided into an outer mold 1a for forming an appearance portion of a cement pen tube, and an inner mold 1b for forming a barrel portion. In this embodiment, the mold is first adhered to the parting line 11 of the mold 1 to fix the mold 1, and then the cement mortar is injected into the cylindrical structure 12 formed by the outer mold 1a, and then inserted into the inner mold 1b to form a pen tube. section. In addition, the cement mortar of the present embodiment is composed of 100 g of hydraulic composition and 20 g. The mixing liquid is mixed and can be used for pouring 4 molds 1, thereby producing 4 cement pen tubes. Next, the process proceeds to step S50, and the mixture is allowed to stand for a predetermined time to be solidified by the cement mortar.

In the present embodiment, the cement mortar formed according to the composition ratio of the hydraulic composition and the mixing liquid described above is injected into the mold 1 at room temperature (25 ° C to 29 ° C), and the humidity is 80%. At 85%, the cement mortar product 2 (cement pen tube) of the present embodiment can be formed after the predetermined time is about 5 hours, that is, after standing for 5 hours. Of course, different cement mortar products 2, the size of which is different, the amount of cement mortar used will be different, and then need to be slightly adjusted for the predetermined time of standing.

After the cement mortar is solidified and molded in the mold 1, the process proceeds to step S60, and the cement mortar product 2 is taken out. Specifically, in the present embodiment, the tape at the parting line 11 is first removed, and then the outer mold 1a is carefully opened. Preferably, after the mold 1a is unloaded, it is allowed to stand for about 1 hour, and the inner mold 1b is taken out to form a hollow pen tube. Of course, in other embodiments, the ejector pin or his auxiliary component may also be used to assist in the demolding step of step S60. The cement mortar product 2 (cement pen tube) obtained after demolding is shown in FIG. 4, and FIG. 4 is a schematic view of a cement mortar product according to an embodiment of the present invention.

FIG. 5 is a schematic flow chart of a method for manufacturing a cement mortar product according to another embodiment of the present invention, and FIG. 5 is shown. In the present embodiment, the cement mortar product obtained in step S60 can be further treated with a hardener, a sealant, or a protective agent, thereby improving the strength, water resistance, and oxidation resistance of the cement mortar product. In other words, compared with the previous embodiment, the manufacturing method of the cement mortar product of the embodiment further comprises the following steps: immersing the cement mortar product in a hardener (step S70); spraying a sealant on the cement mortar. Product (step S72); applying a protective agent to the cement mortar product (step S74).

In step S70, the cement mortar product 2 obtained in step S60 is immersed in the hardener, preferably, for 1 to 3 minutes. The main component of the hardener of the present embodiment is a lithium niobate polymer, and this step can increase the hardness of the cement mortar product 2. After the cement mortar product 2 is taken out from the hardener, the sealant is sprayed on the cement mortar product 2 in step S72. The main component of the blocking agent of this embodiment is also a lithium niobate polymer, and step S72 enhances the waterproof effect of the cement mortar product 2. Finally, a protective agent can be applied to the cement mortar product 2 (step S74). The main component of the protective agent of this embodiment is fluorolipid, and step S74 is for adding cement. The antioxidant effect of mortar product 2. It should be noted that, in step S70 to step S74, the characteristics of the cement mortar product 2 can be selected and used, and preferably, the operation sequence is step S70, step S72, and step S74. Specifically, the cement mortar product 2 of the embodiment is exemplified by a cement pen tube, which may optionally perform step S70 and step S72, and when the cement mortar product is a ring, step S70, step S72, and Step S74.

In other embodiments, the hydraulic composition may be additionally added with hearth powder, ash powder, or may additionally be added to adjust the color exhibited by the cement mortar product 2. Specifically, in step S10, the step of forming a hydraulic composition, in addition to mixing the silicate cement and the silicate cement, may further add 2.5% to 3.5% of the hearth powder, and 0.75% to 1.5%.矽 ash powder. In addition, if the color of the cement mortar product 2 is to be adjusted, 0.75% to 6% of the toner powder may be directly added, and the main component of the toner powder may be iron oxide.

It should be noted that the water-to-binder ratio of the present invention is defined as the weight ratio of water to the cementitious material in the cement mortar, wherein the weight of the cementing material = the weight of the cement + the weight of the admixture, and the blending material may be, for example but not limited to, There are hydraulic or potential hydraulic, volcanic or potential pozzolanic materials such as hearth powder, ash powder, toning powder, fly ash, mineral powder, and zeolite powder. The fluidity test is to fill the cement mortar into three layers into the test dies of the manual cement mortar flow table ASTM, then move the mold vertically upwards and start to vibrate for 25 times. At this time, the cement mortar will collapse into a round cake shape. Then measure its diameter. In general, when the water-to-binder ratio is larger, the fluidity of the cement mortar is greater. The water-cement ratio of the cement mortar on the market is about 20/100~40/100, and the fluidity is about 150-180mm, and the cement mortar prepared by the same proportion and mode of the invention in step S30 is about water-gel ratio. It is 20/100, but the fluidity is about 200 to 280 mm, and the preferred fluidity is between 230 and 250 mm. Since the present invention uses a polycarboxylic acid-based high-performance water reducing agent, the present invention has a better fluidity in the same or lower water-to-binder ratio conditions. That is to say, the fluidity is good, which is beneficial to the injection molding of cement mortar products. Especially when the cement mortar is injected into the mold to produce the slender cement mortar product (for example, the aspect ratio is greater than 10), the cement mortar can have a good adhesion with the mold and can improve the production yield.

In summary, the method for manufacturing a cement mortar product according to the present invention comprises first mixing 40 to 65 weight percent of silicate cement and 10.5 to 36 weight percent of calcium sulphoaluminate cement to form a hydraulic composition. . Also, a hydraulic composition of 75 to 85 weight percent After mixing with 15 to 25 weight percent of the mixing liquid, a cement mortar can be formed, and the cement mortar is poured into the mold and allowed to stand for a predetermined time to form a cement mortar product which can be applied to a small Wenchuang product.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

S10~S60‧‧‧Steps

Claims (10)

A method for manufacturing a cement mortar product applied to a Wenchuang product, comprising the steps of: forming a hydraulic composition comprising a silicate cement of substantially 40 to 65 weight percent, and a substantially 10.5 to 36 a percentage by weight of calcium sulphoaluminate cement; a mixing liquid is added to the hydraulic composition, the hydraulic composition is substantially 75 to 85 weight percent, and the mixing liquid is substantially 15 to 25 a percentage by weight, and the mixing liquid comprises a water and a water reducing agent; mixing the mixing liquid and the hydraulic composition, and forming a cement mortar having a fluidity of substantially 200 to 280 mm; injecting the cement The mortar is applied to a mold; it is allowed to stand for a predetermined time, and a cement mortar product is formed; and the cement mortar product is taken out. The method for manufacturing a cement mortar product according to claim 1, further comprising: immersing the cement mortar product in a hardener. The method for manufacturing a cement mortar product according to claim 1, further comprising: spraying a sealant on the cement mortar product. The method for manufacturing a cement mortar product according to claim 1, further comprising: coating a protective agent on the cement mortar product. The method for producing a cement mortar product according to claim 1, wherein the hydraulic composition further comprises a pulverized stone powder of substantially 2.5 to 3.5 weight percent, and substantially 0.75 to 1.5 weight percent of ash dust. powder. The method for producing a cement mortar product according to claim 1, wherein the hydraulic composition further comprises a substantially 0.75 to 6 weight percent toner powder. The method for producing a cement mortar product according to claim 1, wherein the content of the water in the mixing liquid is substantially 80 to 90% by weight, and the content of the water reducing agent in the mixing liquid is substantially 10 Up to 20 weight percent. The method for producing a cement mortar product according to claim 1, wherein the hydraulic composition further comprises substantially 14 to 42% by weight of cerium oxide. The method for producing a cement mortar product according to claim 1, wherein the bismuth citrate The composition of the cement comprises substantially 61 to 67 weight percent of calcium oxide, substantially 19 to 23 weight percent of cerium oxide, substantially 2.5 to 6 weight percent of aluminum oxide, and substantially 1.5 to 4.5. Percent by weight of sulfur. The method for producing a cement mortar product according to claim 1, wherein the composition of the niobate cement further comprises substantially 0.1 to 6 weight percent of ferric oxide.