CN107555917B - Waterproof plugging material and preparation method thereof - Google Patents
Waterproof plugging material and preparation method thereof Download PDFInfo
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- CN107555917B CN107555917B CN201710702896.1A CN201710702896A CN107555917B CN 107555917 B CN107555917 B CN 107555917B CN 201710702896 A CN201710702896 A CN 201710702896A CN 107555917 B CN107555917 B CN 107555917B
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Abstract
The invention discloses a waterproof plugging material and a preparation method thereof, and relates to the technical field of building materials. The waterproof plugging material comprises the following components: 600 parts of sulphoaluminate cement 300-400 parts, 400 parts of high aluminate cement 200-400 parts, 200 parts of heavy calcium carbonate-200 parts, 200 parts of water-washed river sand, 0.2-1 part of accelerating agent, 0.2-0.5 part of water-retaining agent, 0.5-2 parts of water-reducing agent, 3-6 parts of redispersible rubber powder, 0.3-0.5 part of defoaming agent, 1-3 parts of powder leveling agent and 0.1-0.2 part of polypropylene fiber. The plugging material disclosed by the invention has the advantages of stronger comprehensive performance, capability of meeting the requirement of reinforcing a base layer, good waterproof and anti-permeability performance, short construction period and low price, solves the problem of leveling construction by workers, and has a better effect on base layer plugging.
Description
Technical Field
The invention relates to the field of building materials, in particular to a waterproof plugging material and a preparation method thereof.
Background
The construction of the waterproof paint mainly comprises the construction modes of brushing, roller coating, blade coating and spraying. However, no matter which construction mode is adopted, the state of the base layer can directly influence the effect of waterproof construction, the base layer is loose, cracks and sands are generated, the water absorption rate is too high, the bonding strength of the base layer to the waterproof coating can be greatly influenced, the settlement problem of later-stage buildings is not considered temporarily, the obvious base layer problem can cause the phenomena of bulging, cracking, needle eyes, peeling and the like of the waterproof coating, and the integral waterproof effect of the waterproof coating can be greatly reduced.
The base reinforcing materials on the market at present mainly comprise: 1. the polymer liquid interface treating agent has a good reinforcing effect on a base layer, can play a role in fixing sand and reducing the water absorption of the base layer, but cannot be treated when the base layer has cracks, and the base layer can be reinforced only after the cracks are repaired. 2. The cement mortar is treated, and the problem that cracks or sand exists in the base course can be solved by treating the cement mortar in the base course, but the drying speed is slow, the construction period is long, the labor cost is high, and the reinforcement effect caused by the difference of construction methods can meet the requirements. 3. Although the waterproof mortar has the effects of waterproofing and leveling, the waterproof mortar is not suitable for the ground structure of a building, and the rigid waterproof mortar layer cracks along with the settlement of the building, so that the waterproof mortar has no waterproof effect.
The first common rapid-hardening plugging material at present is a sulphoaluminate cement system, and the product has no fluidity because the rapid-hardening plugging material is mainly used for plugging, and after the rapid-hardening plugging material is used for a large amount of water, the conventional plugging product has the defects of powder generation and infirm bonding because the water-cement ratio is too large, and cannot be used for reinforcing a base layer. The second is a self-leveling material, which has high fluidity and can be used for leveling and reinforcing a base layer, but the construction requirement is high, so that the operation time is long, and the leveling agent mechanism is that the mortar has high fluidity by adjusting the water adding amount, still needs manual scraping, needs a certain thickness, and has disadvantages in the aspects of cost, labor and the like.
Disclosure of Invention
In view of this, the embodiment of the invention provides a waterproof plugging material and a preparation method thereof, and mainly aims to improve the comprehensive performance of the waterproof plugging material.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
on one hand, the embodiment of the invention provides a waterproof plugging material which comprises the following components in parts by weight:
600 parts of sulphoaluminate cement 300-400 parts, 400 parts of high aluminate cement 200-400 parts, 200 parts of heavy calcium carbonate-200 parts, 200 parts of water-washed river sand, 0.5-1 part of accelerating agent, 0.2-0.5 part of water-retaining agent, 0.5-2 parts of water-reducing agent, 3-6 parts of redispersible rubber powder, 0.3-0.5 part of defoaming agent, 1-3 parts of powder leveling agent and 0.1-0.2 part of polypropylene fiber.
Preferably, the sulphoaluminate cement is 550-450 parts, the high aluminate cement is 350-250 parts, the heavy calcium carbonate is 200-150 parts, the washed river sand is 200-150 parts, the accelerator is 0.8-1 part, the water-retaining agent is 0.3-0.5 part, the water-reducing agent is 1-2 parts, the redispersible rubber powder is 4-6 parts, the defoamer is 0.4-0.5 part, and the powder leveling agent is 2-3 parts.
Preferably, the weight portions of the sulphoaluminate cement are 400-450 portions, the high aluminate cement are 200-250 portions, the heavy calcium carbonate is 180-200 portions, the water-washed river sand is 180-200 portions, the redispersible rubber powder is 5-6 portions, and the powder leveling agent is 2-3 portions.
Preferably, the weight ratio of the sulphoaluminate cement to the homoaluminate cement is 2: 1.
Preferably, the sulphoaluminate cement and the high aluminate cement are both 42.5 grades; the accelerating agent is a lithium salt cement accelerating agent.
Preferably, the water retaining agent is a hydroxypropyl cellulose ether water retaining agent, the water reducing agent is a polycarboxylic acid powder water reducing agent, and the defoaming agent is a high-efficiency defoaming agent.
On the other hand, the embodiment of the invention provides a preparation method of the waterproof plugging material, which comprises the following steps:
preparing raw materials according to a raw material formula;
mixing sulphoaluminate cement with high aluminate cement to obtain a cement mixture;
and adding an accelerating agent, a water-retaining agent, a water reducing agent, redispersible rubber powder, a powder leveling agent, polypropylene fibers and a defoaming agent into a part of the cement mixture by weight, adding the rest of the cement mixture by weight, heavy calcium carbonate and washed river sand after the first stirring, and obtaining the product after the second stirring, namely the waterproof and leaking stoppage material.
Preferably, the ratio of the part of the cement mixture to the remaining part by weight is 1: 1.
Preferably, the time of the first stirring is 10 minutes, and the rotating speed is 1000 r/min; the time of the second stirring is 8 minutes, and the rotating speed is 1000 r/min.
Compared with the prior art, the invention has the beneficial effects that:
aiming at the defects of poor cohesiveness, poor base reinforcing effect, poor base crack treatment effect, slow drying speed, long construction period and the like of the existing plugging material, the invention researches a multifunctional waterproof plugging material which is mainly used for base treatment and has the plugging effect. The waterproof plugging material can meet the requirement that a master worker needs to reinforce the base layer in the construction process, has certain waterproof impermeability, short construction period, simple work method and low cost, solves the construction leveling problem of the worker in the later period, can realize one-step base layer reinforcement and leveling, achieves the effect of composite use of various materials, and can meet various construction requirements through different water adding amounts.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, technical solutions, features and effects according to the present invention will be given by preferred embodiments. The particular features, structures, or characteristics of the various embodiments described in the following description may be combined in any suitable manner.
Example 1
Preparing raw materials: by weight, 300 parts of 42.5 sulphoaluminate cement, 300 parts of 42.5 high aluminate cement, 200 parts of heavy calcium carbonate, 150#200 parts of washed river sand, 0.5 part of lithium salt cement accelerator, 0.2 part of hydroxypropyl cellulose ether water-retaining agent, 1 part of polycarboxylic acid powder water reducing agent, 3 parts of redispersible rubber powder, 0.3 part of high-efficiency defoaming agent, 1 part of powder leveling agent and 0.1 part of polypropylene fiber;
mixing sulphoaluminate cement with high aluminate cement to obtain a cement mixture; adding 300 parts of cement mixture into a stirring kettle, adding an accelerating agent, a water-retaining agent, a water-reducing agent, redispersible rubber powder, a powder leveling agent, polypropylene fibers and a defoaming agent into the stirring kettle, stirring for 10 minutes at the rotating speed of 1000r/min, stopping stirring, sequentially adding the remaining 300 parts of cement mixture, heavy calcium carbonate and water-washed river sand into the stirring kettle, stirring for 8 minutes at the rotating speed of 1000r/min, stopping stirring, and discharging to obtain the waterproof and leak-stopping material.
Example 2
Preparing raw materials: by weight, 400 parts of 42.5 sulphoaluminate cement, 200 parts of 42.5 high aluminate cement, 200 parts of heavy calcium carbonate, 150#200 parts of washed river sand, 0.2 part of lithium salt cement accelerator, 0.2 part of hydroxypropyl cellulose ether water-retaining agent, 1 part of polycarboxylic acid powder water reducing agent, 3 parts of redispersible rubber powder, 0.3 part of high-efficiency defoaming agent, 1 part of powder leveling agent and 0.1 part of polypropylene fiber;
mixing sulphoaluminate cement with high aluminate cement to obtain a cement mixture; adding 300 parts of cement mixture into a stirring kettle, adding an accelerating agent, a water-retaining agent, a water-reducing agent, redispersible rubber powder, a powder leveling agent, polypropylene fibers and a defoaming agent into the stirring kettle, stirring for 10 minutes at the rotating speed of 1000r/min, stopping stirring, sequentially adding the remaining 300 parts of cement mixture, heavy calcium carbonate and water-washed river sand into the stirring kettle, stirring for 8 minutes at the rotating speed of 1000r/min, stopping stirring, and discharging to obtain the waterproof and leak-stopping material.
Example 3
Preparing raw materials: by weight, 500 parts of 42.5 sulphoaluminate cement, 100 parts of 42.5 high aluminate cement, 200 parts of heavy calcium carbonate, 150#200 parts of washed river sand, 0.5 part of lithium salt cement accelerator, 0.2 part of hydroxypropyl cellulose ether water-retaining agent, 1 part of polycarboxylic acid powder water reducing agent, 5 parts of redispersible rubber powder, 0.3 part of high-efficiency antifoaming agent, 1 part of powder leveling agent and 0.1 part of polypropylene fiber;
mixing sulphoaluminate cement with high aluminate cement to obtain a cement mixture; adding 300 parts of cement mixture into a stirring kettle, adding an accelerating agent, a water-retaining agent, a water-reducing agent, redispersible rubber powder, a powder leveling agent, polypropylene fibers and a defoaming agent into the stirring kettle, stirring for 10 minutes at the rotating speed of 1000r/min, stopping stirring, sequentially adding the remaining 300 parts of cement mixture, heavy calcium carbonate and water-washed river sand into the stirring kettle, stirring for 8 minutes at the rotating speed of 1000r/min, stopping stirring, and discharging to obtain the waterproof and leak-stopping material.
Example 4
Preparing raw materials: by weight, 400 parts of 42.5 sulphoaluminate cement, 200 parts of 42.5 high aluminate cement, 200 parts of heavy calcium carbonate, 150#200 parts of washed river sand, 0.5 part of lithium salt cement accelerator, 0.2 part of hydroxypropyl cellulose ether water retention agent, 1 part of polycarboxylic acid powder water reducing agent, 6 parts of redispersible rubber powder, 0.3 part of high-efficiency defoaming agent, 3 parts of powder leveling agent and 0.1 part of polypropylene fiber;
premixing 200 parts of sulphoaluminate cement and 100 parts of high aluminate cement, adding the mixture into a stirring cylinder, adding an accelerating agent, a water-retaining agent, a water-reducing agent, redispersible rubber powder, a powder leveling agent, polypropylene fibers and a defoaming agent, stirring the mixture for 10 minutes at the rotating speed of 1000r/min, stopping stirring, adding 200 parts of sulphoaluminate cement, 100 parts of high aluminate cement, heavy calcium carbonate and water-washed river sand into the stirring kettle in sequence, stirring the mixture for 8 minutes at the rotating speed of 1000r/min, stopping stirring, and taking materials to obtain the waterproof plugging material.
The performance of the waterproof and leak-stopping materials prepared in the above examples 1 to 4 was tested, and the test results are shown in table 1.
TABLE 1 Performance test results of the waterproof and plugging materials prepared in examples 1 to 4
The test results in table 1 show that the waterproof plugging material of the present invention has good drying time, mechanical properties and heat resistance.
The design principle of the invention is that sulphoaluminate cement and high aluminate cement are matched with washed river sand and heavy calcium carbonate and added with various additives, the formula strength and the application effect are improved, redispersible rubber powder is added, the rubber powder and the cement are dissolved in water, the cement is hydrated, evaporated on the surface or absorbed by a base layer, the free water in the inner gap is continuously consumed, and the latex particles are dried to form a continuous film which is insoluble in water, so that the mixture is more compact after being cured and has excellent integrity. The powder leveling agent is used, on one hand, procedures such as leveling and the like are easier to perform after pouring, and meanwhile, the leveling agent can reduce the pinhole phenomenon on the surface, increase the bonding performance of the tile glue or the waterproof material and the material, and simultaneously enhance the surface hardness. The automatic leveling effect can be realized without manual later scraping. The construction method can be used for large-area construction or small-range construction. The water-retaining agent can meet the requirement that the settlement does not occur under the condition of higher water adding amount, and can meet the requirements that the product is used for base leveling and base reinforcing under the condition of high water adding amount, and is used for open water leakage stoppage, internal corner arc wiping and other processes under the water adding amount.
The waterproof leaking stoppage material is prepared by compounding the sulphoaluminate cement and the high aluminate cement, and has excellent impermeability because of the characteristics of the sulphoaluminate cement and the high aluminate cement, and compared with the common Portland cement, the waterproof leaking stoppage material has the advantages of being more compact, higher in condensation speed, short in condensation time, high in early strength, capable of effectively shortening the construction period and accelerating the construction progress.
The waterproof plugging material provided by the invention adopts the modified rubber powder, so that the bulk strength of the material is improved, and meanwhile, the modified rubber powder is more compact after the material is cured and has a certain water-resistant and anti-permeability performance.
The waterproof plugging material adopts powder leveling agent: the construction is simple, and the surface is flat after final setting, and procedures such as ceramic tile thin pasting can be directly carried out.
The waterproof plugging material of the invention adopts heavy calcium carbonate: can effectively fill gaps among powder materials, leads the material to be more compact in molding, and has excellent combination effect of the heavy calcium carbonate and the modified rubber powder.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and shall be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the above claims.
Claims (6)
1. The waterproof plugging material is characterized by comprising the following components in parts by weight:
600 parts of sulphoaluminate cement 300-;
the weight ratio of the sulphoaluminate cement to the high aluminate cement is 2: 1;
the sulphoaluminate cement and the high aluminate cement are both 42.5 grades; the accelerator is a lithium salt cement accelerator;
the water-retaining agent is a hydroxypropyl cellulose ether water-retaining agent, the water reducing agent is a polycarboxylic acid powder water reducing agent, and the defoaming agent is a high-efficiency defoaming agent.
2. The waterproof plugging material as claimed in claim 1, wherein the weight parts of the sulphoaluminate cement is 550 parts of 450-.
3. The waterproof plugging material as claimed in claim 1, wherein the weight portions of the sulphoaluminate cement are 400-450 parts, the sulphoaluminate cement are 200-250 parts, the heavy calcium carbonate is 180-200 parts, the water-washed river sand is 180-200 parts, the redispersible rubber powder is 5-6 parts, and the powder leveling agent is 2-3 parts.
4. A method for preparing the waterproof plugging material as described in any one of claims 1 to 3, wherein the method comprises the following steps:
preparing raw materials according to a raw material formula;
mixing sulphoaluminate cement with high aluminate cement to obtain a cement mixture;
and adding an accelerating agent, a water-retaining agent, a water reducing agent, redispersible rubber powder, a powder leveling agent, polypropylene fibers and a defoaming agent into a part of the cement mixture by weight, adding the rest of the cement mixture by weight, heavy calcium carbonate and washed river sand after the first stirring, and obtaining the product after the second stirring, namely the waterproof and leaking stoppage material.
5. The method for preparing the waterproof plugging material according to claim 4, wherein the ratio of the part of the cement mixture to the remaining part by weight is 1: 1.
6. The preparation method of the waterproof plugging material according to claim 4, wherein the time of the first stirring is 10 minutes, and the rotating speed is 1000 r/min; the time of the second stirring is 8 minutes, and the rotating speed is 1000 r/min.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012143221A1 (en) * | 2011-04-21 | 2012-10-26 | Henkel Ag & Co. Kgaa | Mineral composition for producing electric heating layers |
| CN105622029A (en) * | 2015-12-25 | 2016-06-01 | 江苏蓝圈新材料有限公司 | Cement-based self-leveling mortar |
| CN106145835A (en) * | 2016-06-30 | 2016-11-23 | 安徽固维特材料科技有限公司 | A kind of fast setting sealing loss circulation material and preparation method thereof, application process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012143221A1 (en) * | 2011-04-21 | 2012-10-26 | Henkel Ag & Co. Kgaa | Mineral composition for producing electric heating layers |
| CN105622029A (en) * | 2015-12-25 | 2016-06-01 | 江苏蓝圈新材料有限公司 | Cement-based self-leveling mortar |
| CN106145835A (en) * | 2016-06-30 | 2016-11-23 | 安徽固维特材料科技有限公司 | A kind of fast setting sealing loss circulation material and preparation method thereof, application process |
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