Preparation method of waterproof finishing mortar and finishing mortar

Abstract

The application provides a waterproof finishing mortar preparation method and a finishing mortar. In the preparation process of the finishing mortar, the raw materials include: aggregate composed of 40-140 mesh sand and 40-140 mesh zeolite particles; aggregate surface treatment agent; ordinary Portland cement; water retention agent: cellulose ether and / or water absorbing resin; strong agent; early strength agent; thixotropic agent; waterproof and water-repellent powder; heavy calcium powder; PP fiber; the waterproof finishing mortar includes: water-repellent treated aggregate accounting for 46.6-66.0%, cellulose ether accounting for 0.15-0.2%, water absorbing resin accounting for 0.02-0.05%, reinforcing agent accounting for 2.5-3.5%, early strength agent accounting for 0.3-0.5%, thixotropic agent accounting for 0.02-0.05%, waterproof and water-repellent powder prepared in step (2) accounting for 2-4%, heavy calcium powder accounting for 4-10%, and PP fiber accounting for 0.1%. The application finally solves the technical defects of the waterproof finishing mortar in the prior art, such as the inability to balance the compactness, impermeability, water absorption rate and thermal insulation performance, by adding the specific water-repellent treated aggregate and the waterproof and water-repellent powder.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building materials, in particular to a preparation method of waterproof finishing mortar and the finishing mortar. BACKGROUND

[0002] The definition of finishing mortar is that the mortar applied on the surface of building or building component is collectively referred to as finishing mortar. According to the different functions of finishing mortar, the finishing mortar can be divided into ordinary finishing mortar, decorative mortar and finishing mortar with certain special functions (such as waterproof mortar, heat insulation mortar, sound absorption mortar and acid-resistant mortar, etc.). The finishing mortar is required to have good workability, to be easily applied into a uniform and flat thin layer, and to facilitate construction. It should also have high adhesive force, and the mortar layer should be firmly bonded to the bottom surface and not crack or fall off for a long time. In the humid environment or the parts subject to external force (such as the ground and wall skirt, etc.), it should also have high water resistance and strength.

[0003] Compared with masonry mortar, the finishing mortar has the following characteristics: ①the finishing layer does not bear load; ②the finishing layer and the base layer should have sufficient bonding strength so that they do not fall off or crack under the action of long-term self-weight and environment during construction; ③the finishing layer is mostly thin and is applied in layers, and the surface layer requires to be flat, smooth, fine, beautiful and aesthetic; ④it is mostly used in dry environment and is exposed to air in large area. The finishing mortar is usually constructed in two or three layers: (1) the role of the bottom layer mortar is to firmly bond the mortar and the base layer, and it should have good water retention property. (2) the middle layer is mainly to level, and sometimes it can be omitted. (3) the surface layer is mainly to obtain a flat and smooth surface effect.

[0004] The principle of selecting finishing mortar material is based on the different functions and requirements of each layer of plastering surface, and the selected mortar for each layer is different. At the same time, the characteristics of the base material and the different engineering parts require different technical properties of the mortar, which is also the main basis for selecting the type of mortar. Cement mortar is suitable for humid or high strength parts; mixed mortar is mostly used for indoor bottom layer or middle layer or surface layer plastering; lime mortar, plaster and paper mortar are mostly used for indoor middle layer or surface layer plastering. Cement-lime mixed mortar is mostly used for concrete base surface. For the wood lath base and surface layer, fiber materials are mostly used to increase the tensile strength to prevent cracking.

[0005] In the prior art, the waterproof performance of the finishing mortar is usually improved by adding a water-repellent agent in the finishing mortar. For example, CN102557531A discloses a building external wall external insulation dry-mixed finishing mortar and a preparation method thereof. The finishing mortar comprises the following raw materials: cement 25-35 parts; fly ash 5-30 parts; sand 50-80 parts; cellulose ether 0.15-0.3 parts; wood fiber 0.2-0.4 parts; water-repellent agent 0.2-0.3 parts; redispersible glue powder 3.0-3.5 parts; starch ether 0.02-0.05 parts. However, although the use of the water-repellent agent can improve the waterproof performance of the finishing mortar, it will also cause the water retention of the mortar to decrease, resulting in that the mortar hydrates too fast, the hydration cannot be carried out fully, and the finishing layer is prone to cracking and falling off from the base layer.

[0006] CN113087462A discloses a waterproof and anti-cracking insulation board finishing mortar and a preparation method thereof. The finishing mortar comprises the following raw materials by weight: portland cement 280-320 parts, quartz sand 680-720 parts, glue powder 8-12 parts, cellulose ether 3-4 parts, wood fiber 3-4 parts, polypropylene fiber 1-2 parts, starch ether 0.5-1 part, and modified polyurethane 10-15 parts. The modified polyurethane is an amino propanediol-diisocyanate copolymer grafted with alkoxysilane. The invention uses the amino propanediol-diisocyanate copolymer grafted with alkoxysilane to improve the waterproof performance of the finishing mortar, prevent the finishing layer from cracking and falling off from the base layer, and improve the hydrophobicity of the mortar, thereby preventing water from penetrating into the insulation board through the finishing layer and causing the insulation performance to decrease. The alkoxysilane is grafted on the hydrophobic amino propanediol-diisocyanate copolymer main chain, and when it is hydrated and applied to the insulation board, the hydrolysis of the alkoxysilane produces silicon hydroxyl groups, which can form covalent bonds with the quartz sand and cement in the insulation board and the finishing mortar, thereby improving the adhesion between the insulation board and the finishing mortar and the adhesion within the finishing mortar, and improving the anti-cracking and anti-falling performance of the finishing layer. However, isocyanates are prone to decomposition in water, which produces a large amount of gas, reduces the density of the mortar, reduces the adhesion strength of the mortar, and reduces the impermeability of the mortar

[0007] According to the General Specification for Waterproofing of Building and Municipal Engineering, there are new technical requirements for waterproof finishing mortar, including that the 7-day impermeability of the test piece should be greater than or equal to 1.0 MPa, and the water absorption rate of the test piece should be less than or equal to 4%. However, the 7-day impermeability and water absorption rate of the test piece cannot meet the requirements of the index when the cement content is less than or equal to 35 parts and the cellulose ether content is between 0.2 and 0.3 parts, even if more water-repellent agents are added.

[0008] However, to achieve the waterproofness to the index requirements, at least 45 parts of cement and at least 3.5 parts of hydrophobic dispersible powder are required, and the waterproofness can be achieved in the presence of 0.2 or more hydrophobic agent. In this case, it is easy to cause cracking and hollowing of the mortar after drying, and the high manufacturing cost leads to no competitive economic benefits. The waterproofness limit index, the 7-day test piece impermeability is related to the compactness of the mortar, the compactness is high, the impermeability effect is good, the water absorption rate is not only related to the compactness of the mortar but also related to the hydrophobicity of the mortar, the more compact the mortar, the stronger the hydrophobicity, the lower the water absorption rate. It can be seen that the various troweling mortar formulations in the prior art cannot balance the compactness, impermeability effect, water absorption rate and thermal insulation performance and other multiple industry standard specifications based on the relevant provisions of the product technical index in the general specification for municipal engineering waterproofness, therefore, providing a new waterproof troweling mortar that improves the hydrophobicity of the mortar and the density of the mortar to solve the waterproofness problem of the mortar is a technical problem to be solved. SUMMARY

[0009] In view of the above defects, the present application provides a preparation method of waterproof troweling mortar, the raw materials comprising:

[0010] Aggregate: composed of 40-140 mesh sand and zeolite particles 40-140 mesh;

[0011] Aggregate surface treatment agent;

[0012] Ordinary Portland cement;

[0013] Water retention agent cellulose ether and water absorption resin;

[0014] Reinforcing agent;

[0015] Early strength agent;

[0016] Thixotropic agent;

[0017] Waterproof hydrophobic powder;

[0018] Heavy calcium powder;

[0019] PP fiber;

[0020] The waterproof troweling mortar prepared by the method comprises: the hydrophobic treated aggregate accounts for 46.6-66.0%, the cellulose ether accounts for 0.15-0.2%, the water absorption resin accounts for 0.02-0.05%, the reinforcing agent accounts for 2.5-3.5%, the early strength agent accounts for 0.3-0.5%, the thixotropic agent accounts for 0.02-0.05%, the waterproof hydrophobic powder prepared in step (2) accounts for 2-4%, the heavy calcium powder accounts for 4-10%, and the PP fiber accounts for 0.1%.

[0021] The preparation method comprises the following steps:

[0022] (1) aggregate hydrophobic treatment: in the mixer, add 80%-90% sand, zeolite particles 10%-20%, start stirring, then add 0.1%-0.2% of the total mass of sand and aggregate hydrophobic emulsion, fast stirring, so that the hydrophobic emulsion quickly wrapped in the surface of the sand and zeolite particles, zeolite particles due to the porous structure will absorb a certain amount of hydrophobic emulsion;

[0023] (2) preparation of waterproof hydrophobic powder: take mullite powder, waste tire powder, polysiloxane powder and metakaolin; wherein, mullite powder: 30%, waste tire powder 25%, polysiloxane powder: 5%, metakaolin: 40% mixed;

[0024] (3) preparation of waterproof finishing mortar: ordinary Portland cement, step (1) treated aggregate, cellulose ether, water absorbing resin, reinforcing agent, early strength agent, thixotropic agent, step (2) prepared waterproof hydrophobic powder, heavy calcium powder, PP fiber are mixed uniformly to obtain the waterproof finishing mortar. Preferably, based on the total weight of the waterproof finishing mortar, ordinary Portland cement accounts for 25-35%, step (1) treated aggregate accounts for 46.6-66.0%, cellulose ether accounts for 0.15-0.2%, water absorbing resin accounts for 0.02-0.05%, reinforcing agent accounts for 2.5-3.5%, early strength agent accounts for 0.3-0.5%, thixotropic agent accounts for 0.02-0.05%, step (2) prepared waterproof hydrophobic powder accounts for 2-4%, heavy calcium powder accounts for 4-10%, and PP fiber accounts for 0.1%.

[0025] Further, based on the total weight of the aggregate, the weight percentage of sand in the aggregate is 80-90%, and the weight percentage of zeolite particles in the aggregate is 10-20%.

[0026] Further, the aggregate surface treatment agent is a hydrophobic emulsion, and the hydrophobic emulsion is a silane-based hydrophobic emulsion, an organic silicon hydrophobic emulsion, a hydrophobic styrene-acrylic emulsion or a fluorocarbon emulsion. More preferably, the amount of the aggregate surface treatment agent is 0.1-0.2% of the total weight of the aggregate.

[0027] Further, the water retaining agent is cellulose ether and water absorbing resin, wherein the amount of cellulose added is 0.15%-0.2% and the amount of water absorbing resin added is 0.02%-0.05%, based on the weight percentage of the waterproof finishing mortar.

[0028] Further, the cellulose ether is selected from any one or a combination of two or more of hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose.

[0029] Further, the reinforcing agent is dispersible latex powder, and the dispersible latex powder is selected from any one or a combination of two or more of ethylene / vinyl acetate copolymer, vinyl acetate / ethylene carbonate copolymer, and acrylic acid copolymer.

[0030] Further, the early strength agent is calcium formate.

[0031] Further, the thixotropic agent is sepiolite powder, bentonite, attapulgite, and starch ether.

[0032] Further, the waterproof and water-repellent powder is composed of 200-300 mesh mullite powder, 200-300 mesh waste tire powder, polysiloxane powder, and metakaolin, and the mullite powder accounts for 30%, the waste tire powder accounts for 25%, the polysiloxane powder accounts for 5%, and the metakaolin accounts for 40% based on the total weight of the waterproof and water-repellent powder.

[0033] The beneficial effects of the present application are as follows:

[0034] (1) The present application adopts a double waterproofing method, i.e., aggregate waterproofing and paste waterproofing, and hinders water from entering the paste by a special formula, reduces the water absorption of the mortar, and improves the impermeability of the plaster layer.

[0035] (2) The zeolite particles in the aggregate are treated and adsorb water-repellent emulsion, so that the zeolite particles and the cement are adsorbed into the paste during the mixing process, and a waterproof film is formed in the paste, so that the paste has better waterproof effect.

[0036] The zeolite particles and the sand are treated with water-repellent emulsion, the water-repellent emulsion is adsorbed in the pores of the zeolite particles due to the porous structure of the zeolite particles, and the water-repellent emulsion adsorbed in the zeolite particles enters the mortar due to mechanical stirring and the adsorption of the zeolite particles and the cement in the mortar, and a water-repellent film is formed in the paste, and the water-repellent emulsion is further migrated out during the solidification of the mortar due to evaporation of water, and a water-repellent film is formed on the surface of the mortar.

[0037] (3) The present application introduces water-absorbing resin as a water-retaining agent component in the formula, reduces air entrainment, and improves compactness.

[0038] The water-absorbing resin can absorb several hundred to several thousand times of water than itself, replaces cellulose ether as a water-retaining agent, reduces air entrainment of the cellulose ether, and has hydrophilic groups (hydroxyl groups, ether groups) and hydrophobic groups (methyl groups, glucose rings), as a kind of surfactant, has surface activity, and thus has air entrainment effect, resulting in reduction of wet density of the mortar, and the wet density directly affects the compactness of the mortar.

[0039] (4) The invention uses mullite powder, waste tire powder, polysiloxane powder and metakaolin to prepare a waterproof and water-repellent powder according to a specific ratio, so that the mortar has better waterproof performance;

[0040] The mullite powder, the waste tire itself has hydrophobicity, as a void filler, reduces the mortar void, improves the compactness, the polysiloxane prevents water from penetrating into the mortar through capillary action at this dosage, the metakaolin reduces the porosity of the ceramic tile glue, slows down the penetration of water into the porous structure, increases the volume stability, reduces the stress damage to the interfacial bonding due to shrinkage and expansion, and reduces the cracks under the action of shrinkage and expansion stress.

[0041] (5) The invention also uses sepiolite powder to improve the viscosity and thixotropy of the mortar, greatly improving the construction of the mortar, and improving the bonding strength of the mortar;

[0042] The sepiolite particles disperse in the mortar to form a random fibrous network structure, which contains water and forms a high-viscosity suspension to thicken the system. Sepiolite can accommodate more water molecules due to its large pore structure, so the thixotropy is very high. Good thixotropy greatly improves the construction.

[0043] On the one hand, sepiolite has strong water absorption, which can reduce free water and reduce the water-cement ratio, thereby increasing the bonding strength of the mortar; on the other hand, the fibrous structure of sepiolite and the enhanced pozzolanic activity of sepiolite enhance the mortar matrix.

[0044] (1) Dual waterproof principle, aggregate hydrophobic and mortar body waterproof combination;

[0045] (2) Reduce cellulose ether air entrainment to improve mortar density;

[0046] (3) Rubber powder, mullite powder hydrophobic effect makes it difficult for water to enter the interior of the cured paste;

[0047] (4) Metakaolin reacts with cement to produce ettringite, making the mortar body more compact after curing. DETAILED DESCRIPTION

[0048] The invention will be described in detail below in conjunction with the examples.

[0049] Example 1 Waterproofing mortar sample 1

[0050] A waterproofing mortar, the raw materials include:

[0051] Aggregate: composed of 40-140 mesh sand and zeolite particles 40-140 mesh;

[0052] Aggregate surface treatment agent;

[0053] Ordinary Portland cement;

[0054] Water retention agent: cellulose ether and water absorbing resin;

[0055] Reinforcing agent;

[0056] Early strength agent;

[0057] Thixotropic agent;

[0058] Waterproof hydrophobic powder;

[0059] Heavy calcium powder;

[0060] PP fiber.

[0061] The preparation method comprises the following steps:

[0062] (1) Hydrophobic treatment of aggregate: in the mixer, 80% of sand and 20% of zeolite particles are added based on the total weight of the sand and zeolite particles, and stirring is started, then 0.1%-0.2% of the hydrophobic emulsion based on the total mass of the sand and aggregate is added and stirred rapidly, so that the hydrophobic emulsion quickly wraps the surface of the sand and the surface of the zeolite particles, and the zeolite particles will adsorb a certain amount of hydrophobic emulsion due to the porous structure, and then the aggregate is ready for use;

[0063] (2) Preparation of waterproof hydrophobic powder: the waterproof hydrophobic powder is composed of 200-300 mesh mullite powder, 200-300 mesh waste tire powder, polysiloxane powder and metakaolin; based on the total weight of the waterproof hydrophobic powder, the ratio is: mullite powder accounts for 30%, waste tire powder accounts for 25%, polysiloxane powder accounts for 5%, and metakaolin accounts for 40%;

[0064] (3) Preparation of waterproof finishing mortar: the ordinary Portland cement, the aggregate treated in step (1), the cellulose ether, the water absorbing resin, the reinforcing agent, the early strength agent, the thixotropic agent, the waterproof hydrophobic powder prepared in step (2), the heavy calcium powder and the PP fiber are uniformly mixed to obtain the waterproof finishing mortar.

[0065] Based on the weight of the waterproof finishing mortar, the composition of the waterproof finishing mortar is: ordinary Portland cement 35%, aggregate treated by hydrophobic method 54.33%, cellulose ether 0.2%, water absorbing resin 0.02%, decomposable latex powder (reinforcing agent) 3.0%, calcium formate (early strength agent) 0.3%, sepiolite powder (thixotropic agent) 0.05%, waterproof hydrophobic powder 3%, heavy calcium powder 4%, and PP fiber 0.1%, which are uniformly mixed.

[0066] Example 2 waterproof finishing mortar sample 2

[0067] A waterproof finishing mortar, the raw materials of which comprise:

[0068] Aggregate: composed of 40-140 mesh sand and zeolite particles 40-140 mesh;

[0069] Aggregate surface treatment agent;

[0070] Ordinary Portland cement;

[0071] Water retention agent: cellulose ether and water-absorbing resin;

[0072] Reinforcing agent;

[0073] Early strength agent;

[0074] Thixotropic agent;

[0075] Water repellent hydrophobic powder;

[0076] Heavy calcium powder;

[0077] PP fiber.

[0078] The preparation method comprises the following steps:

[0079] (1) Aggregate hydrophobic treatment: based on the total weight of sand and zeolite particles, 84% sand and 16% zeolite particles are added to the mixer, stirring is started, then 0.1%-0.2% of the hydrophobic emulsion based on the total mass of the sand and aggregate is added and stirred quickly, so that the hydrophobic emulsion quickly wraps the surface of the sand and the surface of the zeolite particles, and the zeolite particles will adsorb a certain amount of hydrophobic emulsion due to their porous structure, and then standby;

[0080] (2) Preparation of water-repellent hydrophobic powder: the water-repellent hydrophobic powder is composed of 200-300 mesh mullite powder, 200-300 mesh waste tire powder, polysiloxane powder, and metakaolin; based on the total weight of the water-repellent hydrophobic powder, the ratio is: mullite powder accounts for 30%, waste tire powder accounts for 25%, polysiloxane powder accounts for 5%, and metakaolin accounts for 40%;

[0081] (3) Preparation of water-repellent finishing mortar: ordinary Portland cement, aggregate treated in step (1), cellulose ether, water-absorbing resin, reinforcing agent, early strength agent, thixotropic agent, water-repellent hydrophobic powder prepared in step (2), heavy calcium powder, and PP fiber are mixed uniformly to obtain the water-repellent finishing mortar.

[0082] Based on the weight of the water-repellent finishing mortar, the composition of the water-repellent finishing mortar is: ordinary Portland cement 25%, hydrophobic treated aggregate 64.33%, cellulose ether 0.2%, water-absorbing resin 0.02%, decomposable latex powder (reinforcing agent) 3.0%, calcium formate (early strength agent) 0.3%, sepiolite powder (thixotropic agent) 0.05%, water-repellent hydrophobic powder 3%, heavy calcium powder 4%, and PP fiber 0.1%, which are mixed uniformly.

[0083] Example 3 waterproofing rendering mortar sample 3

[0084] A waterproofing rendering mortar, raw materials include:

[0085] Aggregate: composed of 40-140 mesh sand and zeolite particles 40-140 mesh;

[0086] Aggregate surface treatment agent;

[0087] Ordinary Portland cement;

[0088] Water retention agent: cellulose ether;

[0089] Reinforcing agent;

[0090] Early strength agent;

[0091] Thixotropic agent;

[0092] Waterproof hydrophobic powder;

[0093] Heavy calcium powder;

[0094] PP fiber.

[0095] Preparation method includes the following steps:

[0096] (1) aggregate hydrophobic treatment: based on the total weight of sand and zeolite particles as a percentage basis, 88% sand, zeolite particles 12% in the blender, start stirring, then add 0.1%-0.2% of the total mass of sand and aggregate hydrophobic emulsion fast stirring, so that the hydrophobic emulsion quickly wrapped in the sand surface and zeolite particles surface, zeolite particles due to the porous structure will absorb a certain amount of hydrophobic emulsion, and then standby;

[0097] (2) preparation of waterproof hydrophobic powder: the waterproof hydrophobic powder is composed of 200-300 mesh mullite powder, 200-300 mesh waste tire powder, polysiloxane powder, metakaolin; based on the total weight of the waterproof hydrophobic powder as a percentage basis, the ratio is: mullite powder accounts for 30%, waste tire powder accounts for 25%, polysiloxane powder accounts for 5%, metakaolin accounts for 40%;

[0098] (3) preparation of waterproof rendering mortar: the ordinary Portland cement, the aggregate treated in step (1), cellulose ether, water absorbing resin, reinforcing agent, early strength agent, thixotropic agent, waterproof hydrophobic powder prepared in step (2), heavy calcium powder, PP fiber are mixed uniformly to obtain the waterproof rendering mortar.

[0099] The waterproof finishing mortar is prepared according to the formula and preparation method of the conventional waterproof finishing mortar, and is composed of 35% of ordinary Portland cement, 54.35% of the hydrophobic treated aggregate, 0.2% of cellulose ether, 3.0% of decomposable latex powder (enhancer), 0.3% of calcium formate (early strength agent), 0.05% of sepiolite powder (thixotropic agent), 3% of waterproof hydrophobic powder, 4% of heavy calcium powder and 0.1% of PP fiber.

[0100] Comparative example

[0101] The comparative example is prepared according to the formula and preparation method of the conventional waterproof finishing mortar, and is composed of 35% of ordinary Portland cement, 57.4% of sand aggregate, 0.2% of cellulose ether, 3.0% of decomposable latex powder (enhancer), 0.3% of calcium formate (early strength agent), 4% of heavy calcium powder and 0.1% of PP fiber.

[0102] The performance test is shown in the following table:

[0103]

[0104] As shown in the above table, the waterproof finishing mortar prepared according to the formula of the present application has better water impermeability and water absorption rate, and has better construction and thixotropy, compared with the conventional similar product, and can solve the technical defects of the waterproof finishing mortar in the prior art, such as the unbalanced compactness, impermeability, water absorption rate and thermal insulation performance.

[0105] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application in any other form, and any modification or equivalent change made according to the technical essence of the present application still falls within the scope of the present application.

Claims

1. A method for the production of a waterproof rendering mortar, characterized in that, The preparation method comprises the following steps: (1) aggregate hydrophobic treatment: taking the total weight of sand and zeolite particles as the percentage basis, 80%-90% sand, 10%-20% zeolite particles are added in a blender, then 0.1%-0.2% of the total mass of sand and aggregate of hydrophobic emulsion is added and stirred quickly, so that the hydrophobic emulsion is quickly wrapped on the surface of the sand and the surface of the zeolite particles, and the zeolite particles will adsorb a certain amount of hydrophobic emulsion due to the porous structure; (2) preparation of waterproof and hydrophobic powder: taking mullite powder, waste tire powder, polysiloxane powder and metakaolin; wherein, taking the total weight of the waterproof and hydrophobic powder as the percentage basis, the waterproof and hydrophobic powder is composed of 30% mullite powder, 25% waste tire powder, 5% polysiloxane powder and 40% metakaolin; (3) preparation of waterproof finishing mortar: ordinary portland cement, aggregate treated in step (1), cellulose ether, water absorbing resin, reinforcing agent, early strength agent, thixotropic agent, waterproof and hydrophobic powder prepared in step (2), heavy calcium powder, PP fiber are mixed uniformly to obtain the waterproof finishing mortar; taking the total material of the waterproof finishing mortar as the weight percentage basis, the ordinary portland cement accounts for 25-35%, the aggregate treated in step (1) accounts for 46.6-66.0%, the cellulose ether accounts for 0.15-0.2%, the water absorbing resin accounts for 0.02-0.05%, the reinforcing agent accounts for 2.5-3.5%, the early strength agent accounts for 0.3-0.5%, the thixotropic agent accounts for 0.02-0.05%, the waterproof and hydrophobic powder prepared in step (2) accounts for 2-4%, the heavy calcium powder accounts for 4-10%, and the PP fiber accounts for 0.1%.

2. The preparation method according to claim 1, wherein the aggregate is composed of 40-140 mesh sand and 40-140 mesh zeolite particles; the hydrophobic emulsion is a silicone hydrophobic emulsion, a hydrophobic styrene-acrylic emulsion or a fluorocarbon emulsion; the thixotropic agent is sepiolite powder, bentonite, attapulgite or starch ether. the cellulose ether is selected from any one or a combination of two or more of hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose and hydroxypropyl methyl cellulose.

3. The preparation method according to claim 1, characterized in that, the reinforcing agent is dispersible latex powder, which is selected from any one or a combination of two or more of ethylene / vinyl acetate copolymer, vinyl acetate / tertiary carbon acid ethylene copolymer and acrylic acid copolymer.

4. The production method according to claim 1, characterized by, the early strength agent is calcium formate.

5. The method of claim 1, wherein, the waterproof and hydrophobic powder is composed of 200-300 mesh mullite powder, 200-300 mesh waste tire powder, polysiloxane powder and metakaolin.

6. The method of claim 1, wherein, prepared by the method of any one of claims 1-6.

7. A waterproofing type trowel mortar, characterized by, ​

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