CN111196739A - Stone pretreatment method for stone reverse beating process - Google Patents
Stone pretreatment method for stone reverse beating process Download PDFInfo
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- CN111196739A CN111196739A CN202010030339.1A CN202010030339A CN111196739A CN 111196739 A CN111196739 A CN 111196739A CN 202010030339 A CN202010030339 A CN 202010030339A CN 111196739 A CN111196739 A CN 111196739A
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- 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
- C04B41/50—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 inorganic materials
- C04B41/5024—Silicates
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Abstract
The invention relates to the technical field of stone treatment, in particular to a stone pretreatment method for a stone reverse beating process, which comprises the following steps: s1, stone cutting; s2, heating the stone to be more than 120 ℃; s3, placing the stone into a sealed container, injecting a liquid waterproof treatment agent into the container, keeping the pressure in the container at 1-2MPa, and soaking for 5-10min at constant pressure; s4, taking out the stone and naturally cooling; s5, polishing the surface of the stone; the waterproof treatment agent comprises the following components in parts by weight: 100 parts of polypropylene; 60-70 parts of nano talcum powder; 3-5 parts of a silane coupling agent; 1-2 parts of sodium telluride; 0.5-1 part of sodium selenide. The invention has the advantages that the waterproof agent is not scraped off by the aggregate in the steel bar or the concrete, the stone always keeps better waterproof and seepage-proof effects, and the efflorescence-proof effect is better and more stable.
Description
Technical Field
The invention relates to the technical field of stone treatment, in particular to a stone pretreatment method for a stone reverse beating process.
Background
At present, along with the development of the process, more and more decoration methods for buildings are used, wherein a stone facing is one of common decoration methods for buildings, and because the stone is heavy and is difficult to be firmly adhered to a wall, a construction method of dry hanging the stone is generally used.
However, the dry hanging of the stone needs to construct a keel structure on the wall, and then the stone is hung on the keel structure, and because the general building is high, the keel construction and the stone hanging operation are difficult, so the stone reverse beating process is suitable for operation.
The existing stone reverse-beating process mainly comprises the steps of stone model selection, stone back hole opening, anchor mounting, interface agent coating, template assembling, stone laying, stone gap processing, reinforcing steel bar binding, concrete pouring, bin leveling, matte, steam curing, template dismounting and the like.
Because the stone has the capillary structure, when the stone is wet, the concrete is easy to have the efflorescence phenomenon, the hydroxide seeps along the capillary structure of the stone, the final stone surface is enabled to form the whitening phenomenon, and the interface agent is coated on the back of the stone for preventing water, so that the hydroxide is prevented from permeating into the stone, and the whitening phenomenon of the stone is reduced.
The above prior art solutions have the following drawbacks: in the processes of binding a steel reinforcement cage, pouring concrete and the like, the phenomenon that the interface agent is locally scraped off due to improper operation to cause abrasion, the interface agent on the back surface of the stone is uneven, and efflorescence possibly occurs at the missing or thin part of the interface agent exists, so that the improvement space is provided.
Disclosure of Invention
Aiming at the defects in the prior art, one of the purposes of the invention is to provide a stone pretreatment method for a stone reverse beating process, which has the effect that the stone is not easy to cause saltpetering.
A stone pretreatment method for a stone reverse beating process comprises the following steps:
s1, stone cutting;
s2, heating the stone to be more than 120 ℃;
s3, placing the stone into a sealed container, injecting a liquid waterproof treatment agent into the container, keeping the pressure in the container at 1-2MPa, and soaking for 5-10min at constant pressure;
s4, taking out the stone and naturally cooling;
s5, polishing the surface of the stone;
the waterproof treating agent comprises the following components in parts by weight:
by adopting the technical scheme, the stone is soaked in the liquid waterproof treating agent and is matched with the high pressure of 1-2MPa, so that the waterproof treating agent permeates into the capillary of the stone, the capillary of the stone is plugged, and a channel for whiskering and whitening is plugged from the interior of the stone, so that when the stone treated by the pretreatment method is subjected to a stone reverse beating process, the waterproof treating agent is not scraped off by the reinforcing steel bars or the aggregates in concrete, the stone always keeps a good waterproof and anti-seepage effect, and the whiskering prevention effect is good and stable;
the polypropylene is not easy to shrink in the cooling and solidifying process by adding a large amount of nano talcum powder into the waterproof agent, so that the effect of the waterproof agent for plugging the stone capillary is kept relatively stable, the polypropylene in a molten state is more lubricated and has better fluidity, and the polypropylene is easy to permeate into the stone capillary, so that the capillary structure is plugged from the interior of the stone to realize the waterproof and anti-seepage effects;
by adding the sodium telluride and the sodium selenide into the waterproof agent, the physical property of the polypropylene is improved by the cooperation of the sodium telluride and the sodium selenide, so that the compression strength and the tensile strength of the polypropylene are improved, the waterproof agent in the capillary is not easily damaged when the stone is impacted by external force, and the waterproof and seepage-proof effects are stable;
through adding silane coupling agent in waterproof agent, make waterproof agent and the connection stability preferred of stone material, make the effect of sealed capillary pipe better, cooperate sodium telluride, the physical properties after the waterproof agent solidification has been modified to sodium selenide simultaneously, when making the stone material atress, can transmit the effort to with stone material zonulae occludens's waterproof agent on, cushion through waterproof agent's trace elastic deformation, make the structure of stone material more stable, difficult damage.
The present invention in a preferred example may be further configured to: in the step S2, the stone is heated to 180-200 ℃.
By adopting the technical scheme, the stone is heated to 180-200 ℃ so that the temperature of the stone is higher than the melting point of the polypropylene, namely the stone is put into the waterproof agent, the waterproof agent is not locally solidified due to the fact that the temperature of the stone is lower than the melting point of the waterproof agent, the heat transfer is reduced, and the process that part of the waterproof agent which is cooled to be solidified by the stone is remelted is improved.
The present invention in a preferred example may be further configured to: and heating the waterproof treating agent to 180-190 ℃ in the step S3.
By adopting the technical scheme, the temperature of the waterproof agent is controlled to be heated to 180-190 ℃, so that the waterproof agent is ensured to be in a relatively complete molten state, the flowability of the waterproof agent is ensured to be better, and the phenomenon of degradation and aging caused by too high temperature is reduced.
The present invention in a preferred example may be further configured to: the waterproof treating agent also comprises the following components in parts by weight:
5-8 parts of monoglyceride.
By adopting the technical scheme, the monoglyceride is added into the waterproof agent, so that the brittleness point of the polypropylene is reduced, the frost resistance of the waterproof agent is enhanced, the stone pretreated by the stone pretreatment method is better suitable for cold regions, and the application range of the stone pretreatment method is wider.
The present invention in a preferred example may be further configured to: the waterproof treating agent also comprises the following components in parts by weight:
1-3 parts of glyceryl tristearate.
By adopting the technical scheme, the glycerol tristearate is added into the waterproof agent to be matched with the monoglyceride, so that the frost resistance of the waterproof agent is further improved, and the application range of the stone pretreatment method is further expanded.
The present invention in a preferred example may be further configured to: the waterproof treating agent also comprises the following components in parts by weight:
3-5 parts of glass fiber;
the length of the glass fiber is 0.1-0.2 mm.
By adopting the technical scheme, the glass fiber is added into the waterproof agent, so that the tensile strength of the waterproof agent after curing is effectively enhanced, the structural stability of the waterproof agent after curing is better, and the effect of reinforcing stone is better.
The present invention in a preferred example may be further configured to: the waterproof treating agent also comprises the following components in parts by weight:
2-3 parts of nano granite powder;
1-2 parts of nano zircon powder;
1-2 parts of nano fluorite powder.
By adopting the technical scheme, the nano granite powder, the nano zircon powder and the nano fluorite powder are added into the waterproof treating agent, so that the compression strength of the waterproof treating agent is effectively enhanced, the structural stability of the waterproof treating agent after solidification is further enhanced, and the effect of reinforcing stone is better.
The present invention in a preferred example may be further configured to: the preparation method of the waterproof treating agent comprises the following steps:
s01, heating the polypropylene to be molten, adding the nano talcum powder, and uniformly stirring to form a premix;
s02, adding sodium telluride and sodium selenide into the premix, and uniformly stirring to form a medium mixture;
and S03, adding a silane coupling agent into the medium mixture, and uniformly stirring to form the waterproof treatment agent.
By adopting the technical scheme, the nano talcum powder is added into the molten polypropylene firstly, so that the molten polypropylene is relatively lubricated, other substances are easier to disperse uniformly in the molten polypropylene, and the quality of the waterproof treating agent is uniform and stable.
The present invention in a preferred example may be further configured to: monoglyceride, glyceryl tristearate, glass fiber, nano granite powder, nano zircon powder and nano fluorite powder are also added in the step S02.
By adopting the technical scheme, after the stone is treated by the waterproof agent obtained from the inferior stone, the stone has stronger impermeability, the waterproof agent has better physical performance, better stone reinforcing effect and wider application temperature, and the stone pretreatment method has wider application range.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the stone is soaked in the liquid waterproof agent and is matched with the high pressure of 1-2MPa, so that the waterproof agent permeates into the capillary of the stone, the capillary of the stone is blocked, and a channel for whiskering and whitening is blocked from the interior of the stone, so that when the stone treated by the pretreatment method is subjected to a stone reverse beating process, the stone does not need to worry about scraping the waterproof agent off by the aggregate in the steel bar or concrete, the stone always keeps a good waterproof and anti-seepage effect, and the whiskering prevention effect is good and stable;
2. by adding the sodium telluride and the sodium selenide into the waterproof agent, the physical property of the polypropylene is improved by the cooperation of the sodium telluride and the sodium selenide, so that the compression strength and the tensile strength of the polypropylene are improved, the waterproof agent in the capillary is not easily damaged when the stone is impacted by external force, and the waterproof and seepage-proof effects are stable;
3. by adding monoglyceride and glyceryl tristearate into the waterproof agent, the brittleness point of polypropylene is reduced, so that the frost resistance of the waterproof agent is enhanced, the stone pretreated by the stone pretreatment method is better suitable for cold regions, and the application range of the stone pretreatment method is wider.
Drawings
Fig. 1 is a schematic flow chart of a stone pretreatment method for a stone reverse beating process according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the following examples and comparative examples:
the stone material adopts granite slabs sold by Shengrui industry Co., Ltd in the Jining economic development area;
the polypropylene is the polypropylene sold by Jiangxi Bihai plastics chemical industry Co.Ltd;
the nano talcum powder is sold by Qiangyu new material company Limited in Dongguan;
the silane coupling agent is a silane coupling agent Si40 sold by Ziziqiquan engineering and trade company Limited in Zibo city;
the sodium telluride is sold by Hubei Jusheng science and technology limited;
the sodium selenide adopts sodium selenide sold by Shanghai Jinjinle industry Co Ltd;
the monoglyceride is sold by Chubei Chengxiai science and technology limited;
the tristearin is glyceryl tristearate sold by the Tiaoao chemical industry Co., Ltd in Guangzhou;
the glass fiber adopts alkali-free glass fiber chopped strands sold by China megalithic corporation;
the nanometer granite stone powder is ground by 325-mesh granite stone powder sold by Shanghai Yunkang New Material science and technology Limited;
the nanometer zircon powder is prepared by grinding zircon powder sold by Yanhui mineral product trade company Limited in Lingshou county;
the nano fluorite powder is ground by adopting fluorite powder sold by a mica factory in Lingshu county;
the particle size of the nano granite powder, the nano zircon powder and the nano fluorite powder is 10-100 nm.
Example 1
Referring to fig. 1, the stone pretreatment method for the stone reverse beating process disclosed by the invention comprises the following steps:
s1, stone cutting, namely cutting the stone as required to form regular stone.
S2, placing the stone into an oven, heating to 180 ℃, and keeping the temperature at 180 ℃ for 30 min.
And S3, taking the stone out of the oven, and if the stone is in a box body which is provided with a heating device and can be sealed, wherein the box body is communicated with an air outlet pipe and a liquid injection pipe, after the box body is sealed, air in the wall body is pumped out from the air outlet pipe through an air pump, the air outlet pipe is communicated with an air outlet valve, after the air outlet valve on the wall body is closed, a waterproof treatment agent heated to 180 ℃ is injected into the box body from the liquid injection pipe through a liquid pump, the liquid injection pipe is provided with a pressure gauge and a liquid injection valve, the liquid is injected until the pressure of the pressure gauge is 1MPa, the liquid injection valve is closed.
And S4, releasing pressure, opening the box body, lifting the stone, vertically suspending the stone and naturally cooling the stone, so that the waterproof agent on the surface of the stone flows downwards, and the residue is reduced.
And S5, after the stone is cooled to normal temperature, removing the residual waterproof agent on the surface of the stone by polishing, and polishing the surface of the stone to finish the stone pretreatment.
The preparation method of the waterproof agent in this example is as follows:
s01, adding 100kg of polypropylene particles into a stirring kettle, heating until the polypropylene is completely melted, starting stirring at a rotation speed of 20r/min, continuously heating until the temperature of the polypropylene is 180 ℃, stirring at a constant temperature, adding 60kg of nano talcum powder at a rotation speed of 45r/min, and stirring for 2min to form a premix.
S02, adding 1kg of sodium telluride and 0.5kg of sodium selenide into the premix, rotating at 40r/min, and stirring for 2min to form a medium mixture.
S03, adding 3kg of silane coupling agent into the medium mixture, stirring at the rotating speed of 45r/min for 2min to form the waterproof treating agent.
Example 2
Referring to fig. 1, the stone pretreatment method for the stone reverse beating process disclosed by the invention comprises the following steps:
s1, stone cutting, namely cutting the stone as required to form regular stone.
S2, placing the stone into an oven, heating to 190 ℃, and keeping the temperature at 190 ℃ for 30 min.
And S3, taking the stone out of the oven, placing the stone in a box body which is provided with a heating device and can be sealed, wherein the box body is communicated with an air outlet pipe and a liquid injection pipe, after the box body is sealed, air in the wall body is pumped out from the air outlet pipe through an air pump, the air outlet pipe is communicated with an air outlet valve, after the air outlet valve on the wall body is closed, a waterproof treatment agent heated to 185 ℃ is injected into the box body from the liquid injection pipe through a liquid pump, the liquid injection pipe is provided with a pressure gauge and a liquid injection valve, the liquid injection is carried out until the pressure of the pressure gauge is 1.5MPa, the liquid injection valve is closed, a heating.
And S4, releasing pressure, opening the box body, lifting the stone, vertically suspending the stone and naturally cooling the stone, so that the waterproof agent on the surface of the stone flows downwards, and the residue is reduced.
And S5, after the stone is cooled to normal temperature, removing the residual waterproof agent on the surface of the stone by polishing, and polishing the surface of the stone to finish the stone pretreatment.
The preparation method of the waterproof agent in this example is as follows:
s01, adding 100kg of polypropylene particles into a stirring kettle, heating until the polypropylene is completely melted, starting stirring at a rotation speed of 20r/min, continuously heating until the temperature of the polypropylene is 180 ℃, stirring at a constant temperature, adding 65kg of nano talcum powder at a rotation speed of 45r/min, and stirring for 2min to form a premix.
S02, adding 1.5kg of sodium telluride and 0.75kg of sodium selenide into the premix, rotating at 40r/min, and stirring for 2min to form a medium mixture.
S03, adding 4kg of silane coupling agent into the medium mixture, stirring at the rotating speed of 45r/min for 2min to form the waterproof treating agent.
Example 3
Referring to fig. 1, the stone pretreatment method for the stone reverse beating process disclosed by the invention comprises the following steps:
s1, stone cutting, namely cutting the stone as required to form regular stone.
S2, placing the stone into an oven, heating to 200 ℃, and keeping the temperature at 200 ℃ for 30 min.
And S3, taking the stone out of the oven, and if the stone is in a box body which is provided with a heating device and can be sealed, wherein the box body is communicated with an air outlet pipe and a liquid injection pipe, after the box body is sealed, air in the wall body is pumped out from the air outlet pipe through an air pump, the air outlet pipe is communicated with an air outlet valve, after the air outlet valve on the wall body is closed, a waterproof treatment agent heated to 190 ℃ is injected into the box body from the liquid injection pipe through a liquid pump, the liquid injection pipe is provided with a pressure gauge and a liquid injection valve, the liquid is injected until the pressure of the pressure gauge is 2MPa, the liquid injection valve is closed.
And S4, releasing pressure, opening the box body, lifting the stone, vertically suspending the stone and naturally cooling the stone, so that the waterproof agent on the surface of the stone flows downwards, and the residue is reduced.
And S5, after the stone is cooled to normal temperature, removing the residual waterproof agent on the surface of the stone by polishing, and polishing the surface of the stone to finish the stone pretreatment.
The preparation method of the waterproof agent in this example is as follows:
s01, adding 100kg of polypropylene particles into a stirring kettle, heating until the polypropylene is completely melted, starting stirring at a rotation speed of 20r/min, continuously heating until the temperature of the polypropylene is 180 ℃, stirring at a constant temperature, adding 70kg of nano talcum powder at a rotation speed of 45r/min, and stirring for 2min to form a premix.
S02, adding 2kg of sodium telluride and 1kg of sodium selenide into the premix, rotating at 40r/min, and stirring for 2min to form a medium mixture.
S03, adding 5kg of silane coupling agent into the medium mixture, stirring at the rotating speed of 45r/min for 2min to form the waterproof treating agent.
Example 4
Referring to fig. 1, the stone pretreatment method for the stone reverse beating process disclosed by the invention comprises the following steps:
s1, stone cutting, namely cutting the stone as required to form regular stone.
S2, placing the stone into an oven, heating to 185 ℃, and keeping the temperature at 185 ℃ for 30 min.
And S3, taking the stone out of the oven, and if the stone is in a box body which is provided with a heating device and can be sealed, wherein the box body is communicated with an air outlet pipe and a liquid injection pipe, after the box body is sealed, air in the wall body is pumped out from the air outlet pipe through an air pump, the air outlet pipe is communicated with an air outlet valve, after the air outlet valve on the wall body is closed, a waterproof treatment agent heated to 180 ℃ is injected into the box body from the liquid injection pipe through a liquid pump, the liquid injection pipe is provided with a pressure gauge and a liquid injection valve, the liquid is injected until the pressure of the pressure gauge is 1.5MPa, the liquid injection valve is closed.
And S4, releasing pressure, opening the box body, lifting the stone, vertically suspending the stone and naturally cooling the stone, so that the waterproof agent on the surface of the stone flows downwards, and the residue is reduced.
And S5, after the stone is cooled to normal temperature, removing the residual waterproof agent on the surface of the stone by polishing, and polishing the surface of the stone to finish the stone pretreatment.
The preparation method of the waterproof agent in this example is as follows:
s01, adding 100kg of polypropylene particles into a stirring kettle, heating until the polypropylene is completely melted, starting stirring at a rotation speed of 20r/min, continuously heating until the temperature of the polypropylene is 180 ℃, stirring at a constant temperature, adding 66kg of nano talcum powder at a rotation speed of 45r/min, and stirring for 2min to form a premix.
S02, adding 1.2kg of sodium telluride and 0.6kg of sodium selenide into the premix, rotating at 40r/min, and stirring for 2min to form a medium mixture.
S03, adding 3.3kg of silane coupling agent into the medium mixture, stirring at the rotating speed of 45r/min for 2min to form the waterproof treating agent.
Example 5
The difference from example 4 is that:
5kg of monoglyceride was also added in step S02.
Example 6
The difference from example 4 is that:
6.5kg of monoglyceride was also added in step S02.
Example 7
The difference from example 4 is that:
8kg of monoglyceride was also added in step S02.
Example 8
The difference from example 4 is that:
6kg of monoglyceride was also added in step S02.
Example 9
The difference from example 4 is that:
in step S02, 5kg of monoglyceride and 1kg of glyceryl tristearate are added.
Example 10
The difference from example 4 is that:
6.5kg of monoglyceride and 2kg of glyceryl tristearate are also added in the step S02.
Example 11
The difference from example 4 is that:
8kg of monoglyceride and 3kg of glyceryl tristearate are also added in the step S02.
Example 12
The difference from example 4 is that:
6kg of monoglyceride and 1.8kg of glyceryl tristearate are also added in the step S02.
Example 13
The difference from example 4 is that:
in step S02, 3kg of glass fiber was added.
The length of the glass fiber was 0.1 mm.
Example 14
The difference from example 4 is that:
in step S02, 4kg of glass fiber was also added.
The length of the glass fiber was 0.15 mm.
Example 15
The difference from example 4 is that:
5kg of glass fiber was also added in step S02.
The length of the glass fiber was 0.2 mm.
Example 16
The difference from example 4 is that:
in step S02, 4.5kg of glass fiber was also added.
The length of the glass fiber was 0.1 mm.
Example 17
The difference from example 4 is that:
in step S02, 2kg of nano granite powder, 1kg of nano zircon powder and 1kg of nano fluorite powder are also added.
Example 18
The difference from example 4 is that:
in step S02, 2.5kg of nano granite powder, 1.5kg of nano zircon powder and 1.5kg of nano fluorite powder are also added.
Example 19
The difference from example 4 is that:
in step S02, 3kg of nano granite powder, 2kg of nano zircon powder and 2kg of nano fluorite powder are also added.
Example 20
The difference from example 4 is that:
in step S02, 2.8kg of nano granite powder, 1.3kg of nano zircon powder and 1.3kg of nano fluorite powder are also added.
Example 21
The difference from example 4 is that:
in step S02, monoglyceride 5kg, glyceryl tristearate 1kg, glass fiber 3kg, nanometer granite powder 2kg, nanometer zircon powder 1kg, and nanometer fluorite powder 1kg are also added.
The length of the glass fiber was 0.1 mm.
Example 22
The difference from example 4 is that:
6.5kg of monoglyceride, 2kg of glyceryl tristearate, 4kg of glass fiber, 2.5kg of nano granite powder, 1.5kg of nano zircon powder and 1.5kg of nano fluorite powder are also added in the step S02.
The length of the glass fiber was 0.1 mm.
Example 23
The difference from example 4 is that:
8kg of monoglyceride, 3kg of glyceryl tristearate, 5kg of glass fiber, 3kg of nano granite powder, 2kg of nano zircon powder and 2kg of nano fluorite powder are also added in the step S02.
The length of the glass fiber was 0.1 mm.
Example 24
The difference from example 4 is that:
in step S02, monoglyceride 7kg, glyceryl tristearate 2.5kg, glass fiber 4.5kg, nanometer granite powder 2.2kg, nanometer zircon powder 1.3kg, and nanometer fluorite powder 1.2kg are also added.
The length of the glass fiber was 0.1 mm.
Comparative example 1
The difference from example 4 is that:
in step S02, no sodium telluride was added.
Comparative example 2
The difference from example 4 is that:
no sodium selenide is added in step S02.
Comparative example 3
The difference from example 4 is that:
in step S02, sodium telluride and sodium selenide are not added.
Comparative example 4
The difference from example 4 is that:
in step S03, no silane coupling agent is added.
Comparative example 5
The difference from example 4 is that:
in step S01, no nano talc is added.
Comparative example 6
The invention discloses a stone pretreatment method for a stone reverse beating process, which comprises the following steps:
s1, stone cutting, namely cutting the stone as required to form regular stone.
S2, placing the stone into an oven, heating to 185 ℃, and keeping the temperature at 185 ℃ for 30 min.
And S3, taking out the stone, cooling to normal temperature, and polishing the surface of the stone to polish the surface of the stone, thereby finishing the stone pretreatment.
Experiment 1
According to the first part of GB/T35160.1-2017 synthetic stone test method: the density and water absorption were measured, and the water absorption of the stone materials treated in the examples and comparative examples was measured.
Experiment 2
The brittle temperature of the samples prepared by the waterproof agents prepared in examples and comparative examples is determined according to GB/T5470-2008 "determination of brittle temperature by Plastic impact method".
Experiment 3
Part 3 of the determination of mechanical Properties of roving-reinforced resin rods for textile glass fiber-reinforced plastics according to GB/T14208.3-2009: measurement of compressive Strength the compressive strength of the samples prepared with the water repellent agents prepared in examples and comparative examples was measured.
Experiment 4
The tensile strength of the samples prepared with the water repellent treatment agents prepared in the examples and comparative examples was measured according to GB/T528-2009 determination of tensile stress strain Properties of vulcanized rubber or thermoplastic rubber.
Specific detection data are shown in Table 1
TABLE 1
According to the comparison of the data of the comparative examples 1-3 and the data of the example 4 in the table 1, the sodium telluride and the sodium selenide are independently added into the waterproof agent, the physical properties of the waterproof agent are not obviously affected, and when the sodium telluride and the sodium selenide are simultaneously added into the waterproof agent in proportion, the compressive strength and the tensile strength of the waterproof agent after being cured are effectively improved, so that the waterproof agent stably plugs the capillary tubes of the stone in the capillary tubes of the stone, the stone is reinforced to a certain extent, the impact energy on the stone is favorably absorbed, and the damage such as cracking of the stone is further reduced.
According to the comparison between the data of comparative example 4 and the data of example 4 in table 1, the silane coupling agent is added into the water-proofing agent, so that the connection between the water-proofing agent and the stone is more stable, the situation that a gap is generated due to the unstable connection between the water-proofing agent and the stone is reduced, the water absorption of the stone is lower, the anti-seepage capability of the stone is stronger, and the effect of the water-proofing agent for reinforcing the stone is better.
According to comparison of data of comparative example 5 and example 4 in table 1, the nano talc powder is added into the water-proofing agent, so that the physical property of the water-proofing agent is improved to a certain extent, the water-proofing agent is not easy to shrink when cooled, the phenomenon that a gap is generated between the water-proofing agent and the stone when cooled is reduced, the water absorption rate of the stone is low, and the water-proofing and seepage-proofing capabilities of the stone are improved.
According to the comparison of the data of comparative example 6 and example 4 in table 1, the water absorption of the stone material is effectively reduced by using the stone material pretreatment method of the present invention, and the waterproof and anti-seepage capabilities of the stone material are greatly improved.
According to the comparison of the data of the examples 5 to 8 and the data of the example 4 in the table 1, the monoglyceride is added into the water repellent agent, so that the embrittlement temperature of the water repellent agent is effectively reduced, the application temperature of the water repellent agent is increased, and the applicability of the stone material treated by the stone material pretreatment method is wider.
According to the comparison of the data of the examples 9-12 and the example 4 in the table 1, the addition of the glyceryl tristearate and the monoglyceride in the waterproof agent can limit further reduction of the embrittlement stability of the waterproof agent, further increase the application temperature of the waterproof agent, and further widen the applicability of the pretreated stone.
According to the comparison of the data of the examples 13-16 and the example 4 in the table 1, the glass fiber is added into the water repellent agent, so that the tensile strength of the sample prepared by the water repellent agent is improved to a limited extent, the structure of the water repellent agent is stable, the effect of reinforcing the stone is better, and the capillary of the stone is blocked stably.
According to comparison of data of examples 17 to 20 and example 4 in table 1, the nano granite powder, the nano zircon powder and the nano fluorite powder are added into the water-repellent treatment agent, so that the compressive strength of a sample prepared by the water-repellent treatment agent is effectively improved, the water-repellent treatment agent is stable in structure, the stone reinforcing effect is good, and the effect of improving the water-proofing and seepage-proofing capabilities of the stone is more stable.
According to the data of the examples 21-24 in the table 1, the prepared waterproof agent has better compressive strength, lower consumption-reducing tensile strength and lower embrittlement temperature, so that the pretreated stone has better waterproof and anti-seepage effects and stable structure.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A stone pretreatment method for a stone reverse beating process is characterized by comprising the following steps: the method comprises the following steps:
s1, stone cutting;
s2, heating the stone to be more than 120 ℃;
s3, placing the stone into a sealed container, injecting a liquid waterproof treatment agent into the container, keeping the pressure in the container at 1-2MPa, and soaking for 5-10min at constant pressure;
s4, taking out the stone and naturally cooling;
s5, polishing the surface of the stone;
the waterproof treating agent comprises the following components in parts by weight:
100 parts of polypropylene;
60-70 parts of nano talcum powder;
3-5 parts of a silane coupling agent;
1-2 parts of sodium telluride;
0.5-1 part of sodium selenide.
2. The stone pretreatment method for stone reverse beating process according to claim 1, characterized in that: in the step S2, the stone is heated to 180-200 ℃.
3. The stone pretreatment method for stone reverse beating process according to claim 1, characterized in that: and heating the waterproof treating agent to 180-190 ℃ in the step S3.
4. The stone pretreatment method for stone reverse beating process according to claim 1, characterized in that: the waterproof treating agent also comprises the following components in parts by weight:
5-8 parts of monoglyceride.
5. The stone pretreatment method for stone reverse beating process according to claim 4, characterized in that: the waterproof treating agent also comprises the following components in parts by weight:
1-3 parts of glyceryl tristearate.
6. The stone pretreatment method for stone reverse beating process according to claim 1, characterized in that: the waterproof treating agent also comprises the following components in parts by weight:
3-5 parts of glass fiber;
the length of the glass fiber is 0.1-0.2 mm.
7. The stone pretreatment method for stone reverse beating process according to claim 1, characterized in that: the waterproof treating agent also comprises the following components in parts by weight:
2-3 parts of nano granite powder;
1-2 parts of nano zircon powder;
1-2 parts of nano fluorite powder.
8. The stone pretreatment method for stone reverse beating process according to claim 1, characterized in that: the preparation method of the waterproof treating agent comprises the following steps:
s01, heating the polypropylene to be molten, adding the nano talcum powder, and uniformly stirring to form a premix;
s02, adding sodium telluride and sodium selenide into the premix, and uniformly stirring to form a medium mixture;
and S03, adding a silane coupling agent into the medium mixture, and uniformly stirring to form the waterproof treatment agent.
9. The stone pretreatment method for stone reverse beating process according to claim 8, characterized in that: monoglyceride, glyceryl tristearate, glass fiber, nano granite powder, nano zircon powder and nano fluorite powder are also added in the step S02.
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| CN115140977A (en) * | 2022-07-12 | 2022-10-04 | 广东爱富兰建设有限公司 | Anti-efflorescence stone paving construction method |
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