An anti-weathering super-high water filling material and a preparation method thereof

Abstract

This application discloses a weathering-resistant ultra-high water backfill material and its preparation method, relating to the field of backfill material technology. The weathering-resistant ultra-high water backfill material includes a permeable crystallization masterbatch, component A powder, and component B powder. The permeable crystallization masterbatch is composed of a modified silicone compound and an organosilicone compound mixed in a mass ratio of (5-8):(1-5). Component A powder includes: sulfoaluminate clinker, alumina clinker, lithium slag, tartaric acid, and hydroxypropyl methylcellulose ether. Component B powder includes: anhydrous phosphogypsum, quicklime, bentonite, and sodium carbonate. This application utilizes the modified silicone compound to induce condensation crystallization within the ultra-high water backfill material to block internal moisture loss. Simultaneously, the organosilicone compound generates a hydrophobic organosilicon molecular film on the surface of the ultra-high water backfill material to prevent internal moisture from permeating to the outside of the backfill, thereby obtaining an ultra-high water backfill material with weathering resistance and reducing strength loss after weathering.

Description

Technical Field

[0001] This application relates to the field of filling material technology, and in particular to a weather-resistant ultra-high water filling material and its preparation method. Background Technology

[0002] Ultra-high water backfill material is a new type of material used for filling and solidifying underground cavities. It possesses superior impermeability and seepage resistance, excellent water resistance, and high plasticity, enabling it to form a robust backfill in underground cavities. This improves the load-bearing capacity and stability of underground cavities, ensuring the safe operation of underground engineering projects. Ultra-high water backfill material mainly consists of two components, A and B. Component A is primarily made from high-strength sulfoaluminate cement clinker or aluminate cement clinker mixed with additives and finely ground. Component B is primarily made from anhydrite and lime mixed with additives and finely ground. Water is added to each component separately to form single-component slurries, resulting in two highly fluid slurries (water content 95-97% or higher) with water as the main component. These two slurries are mixed before entering the backfill area, allowing the mixed slurry to cement and coagulate in the goaf to reach the design strength, forming a robust backfill. This effectively controls surrounding rock deformation and prevents surface subsidence. Ultra-high water content backfill material, as a material with an extremely high water-cement ratio, contains a large amount of free water and bound water. When not fully submerged in water, the free water in the material will evaporate and be lost due to atmospheric weathering, thereby reducing the material's density. Furthermore, carbon dioxide in the air reacts with the ettringite crystals within the material, causing sulfate ions in the ettringite crystals to be replaced by carbonate and hydroxide ions, thus generating new substances such as calcium carbonate and calcium sulfate. This process causes the ettringite crystals to fragment into particles, gradually losing their load-bearing capacity and ultimately weakening the strength of the backfill. Based on this, this application proposes a weathering-resistant ultra-high water content backfill material and its preparation method. Summary of the Invention

[0003] The main objective of this application is to provide a weather-resistant ultra-high water backfill material and its preparation method, aiming to solve the technical problems of existing ultra-high water backfill materials being prone to water loss and having low weathering strength.

[0004] To achieve the above objectives, this application proposes a weathering-resistant ultra-high water filling material, comprising a permeable crystallizing masterbatch, component A powder, and component B powder;

[0005] The permeation crystallization masterbatch is composed of modified silicone compound and organosilicone compound mixed in a mass ratio of (5-8):(1-5);

[0006] The A component powder includes: sulfoaluminate clinker, alumina clinker, lithium slag, tartaric acid, and hydroxypropyl methylcellulose ether;

[0007] The B component powder includes: anhydrous phosphogypsum, quicklime, bentonite, and sodium carbonate.

[0008] Optionally, the modified silicone compound is zirconium silicone.

[0009] Optionally, the organosilicon compound is sodium methylsilanolate.

[0010] Optionally, by weight, the A component powder includes: 70-95 parts of sulfoaluminate clinker, 5-30 parts of aluminate clinker, 5-10 parts of lithium slag, 0.1-0.5 parts of tartaric acid, and 0.1-1 parts of hydroxypropyl methylcellulose ether.

[0011] Optionally, by weight, the B component powder includes: 65-80 parts of anhydrous phosphogypsum, 20-30 parts of quicklime, 3-5 parts of bentonite, and 0.5-2 parts of sodium carbonate.

[0012] This application also proposes a method for preparing a weather-resistant, high-water-content backfill material, comprising the following steps:

[0013] Add the permeation crystallization masterbatch to water, stir and mix well to obtain the permeation crystallization liquid;

[0014] Add the penetrating crystallization liquid to the A component powder, stir and mix well to obtain the A component slurry;

[0015] The permeation crystallization liquid is added to the B component powder and stirred until well mixed to obtain the B component slurry.

[0016] After mixing the A component slurry with the B component slurry, a weather-resistant ultra-high water filling material is obtained.

[0017] Optionally, in the step of adding the permeation crystallization masterbatch to water, the permeation crystallization masterbatch is added to water at a ratio of 3wt% to 10wt%.

[0018] Optionally, in the step of adding the penetrating crystallization liquid to the A component powder, the mass ratio of the A component powder to the penetrating crystallization liquid is 1:(3-11).

[0019] Optionally, in the step of adding the penetrating crystallization liquid to the B component powder, the mass ratio of the B component powder to the penetrating crystallization liquid is 1:(3-11).

[0020] Optionally, in the step of mixing the A component slurry with the B component slurry, the A component slurry and the B component slurry are mixed in an equal volume ratio.

[0021] This application includes at least the following beneficial effects:

[0022] The weathering-resistant, high-water-content backfill material of this application uses sulfoaluminate clinker, alumina clinker, lithium slag, tartaric acid, and hydroxypropyl methylcellulose ether as component A powder, and anhydrous phosphogypsum, quicklime, bentonite, and sodium carbonate as component B powder. Sulfoaluminate clinker possesses excellent hydration properties and strength characteristics, forming robust hydration products in water, which helps provide the initial strength and stability of the backfill material. Alumina clinker provides rapid setting and offers some resistance to chemical corrosion and high-temperature resistance during hydration. Lithium slag contains lithium atoms and certain mineral components, which can enhance strength. Tartaric acid has a retarding effect, which can improve the fluidity and workability of filling materials and reduce the viscosity of cement paste. Hydroxypropyl methylcellulose ether can improve the rheological properties and cohesiveness of paste, regulate the consistency and anti-settling properties of materials, and enhance the water-holding capacity of cement or other binders. Anhydrous phosphogypsum and quicklime can regulate the hydration process of paste and improve the hardening strength and corrosion resistance of materials. Bentonite has good water absorption and expansion properties, which can improve the plasticity and enhance the filling properties of mixed paste. Sodium carbonate can promote the hydration reaction of cement and other mineral components and improve the strength of materials. When the two components are mixed after being separately added to water to form single-component slurries, a large amount of ettringite is produced in the mixed slurry within a certain time, forming needle-like and interwoven network structures. Since the molecular formula of ettringite is 3CaO·Al₂O₃·3CaSO₄·32H₂O, it is evident that the ettringite crystals contain approximately 46% water of crystallization. Simultaneously, the network or needle-like structure of ettringite creates large voids between the crystals, which can adsorb and retain a large amount of free water. To prevent this water from losing under weathering conditions, leading to structural damage and reduced strength of the filling material, this application further incorporates a permeable binder into the water. The masterbatch for crystallization contains modified silicone compounds and organosilicone compounds. The modified silicone compounds can undergo condensation crystallization inside the ultra-high water backfill material, thereby filling the internal voids and preventing internal moisture loss. At the same time, the large number of hydrophobic groups in the organosilicone compounds can generate a hydrophobic organosilicon molecular film on the surface of the ultra-high water backfill material, which can seal the ultra-high water backfill material and prevent internal moisture from penetrating to the outside of the backfill, reducing the strength loss of the material after weathering, and finally obtaining an ultra-high water backfill material with weathering resistance. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1This is a comparison image of the ultra-high water filling material described in the embodiments of this application after weathering and water loss.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] To address the technical problems existing in the prior art, embodiments of this application provide a weathering-resistant ultra-high water filling material, comprising a permeable crystallizing masterbatch, component A powder, and component B powder;

[0028] The permeation crystallization masterbatch is composed of modified silicone compound and organosilicone compound mixed in a mass ratio of (5-8):(1-5);

[0029] The A component powder includes: sulfoaluminate clinker, alumina clinker, lithium slag, tartaric acid, and hydroxypropyl methylcellulose ether;

[0030] The B component powder includes: anhydrous phosphogypsum, quicklime, bentonite, and sodium carbonate.

[0031] The weathering-resistant, high-water-content backfill material of this application uses sulfoaluminate clinker, alumina clinker, lithium slag, tartaric acid, and hydroxypropyl methylcellulose ether as component A powder, and anhydrous phosphogypsum, quicklime, bentonite, and sodium carbonate as component B powder. Sulfoaluminate clinker possesses excellent hydration properties and strength characteristics, forming robust hydration products in water, which helps provide the initial strength and stability of the backfill material. Alumina clinker provides rapid setting and offers some resistance to chemical corrosion and high-temperature resistance during hydration. Lithium slag contains lithium atoms and certain mineral components, which can enhance strength. Tartaric acid has a retarding effect, which can improve the fluidity and workability of filling materials and reduce the viscosity of cement paste. Hydroxypropyl methylcellulose ether can improve the rheological properties and cohesiveness of paste, regulate the consistency and anti-settling properties of materials, and enhance the water-holding capacity of cement or other binders. Anhydrous phosphogypsum and quicklime can regulate the hydration process of paste and improve the hardening strength and corrosion resistance of materials. Bentonite has good water absorption and expansion properties, which can improve the plasticity and enhance the filling properties of mixed paste. Sodium carbonate can promote the hydration reaction of cement and other mineral components and improve the strength of materials. When the two components are mixed after being separately added to water to form single-component slurries, a large amount of ettringite is produced in the mixed slurry within a certain time, forming needle-like and interwoven network structures. Since the molecular formula of ettringite is 3CaO·Al₂O₃·3CaSO₄·32H₂O, it is evident that the ettringite crystals contain approximately 46% water of crystallization. Simultaneously, the network or needle-like structure of ettringite creates large voids between the crystals, which can adsorb and retain a large amount of free water. To prevent this water from losing under weathering conditions, leading to structural damage and reduced strength of the filling material, this application further incorporates a permeable binder into the water. The masterbatch for crystallization contains modified silicone compounds and organosilicone compounds. The modified silicone compounds can undergo condensation crystallization inside the ultra-high water backfill material, thereby filling the internal voids and preventing internal moisture loss. At the same time, the large number of hydrophobic groups in the organosilicone compounds can generate a hydrophobic organosilicon molecular film on the surface of the ultra-high water backfill material, which can seal the ultra-high water backfill material and prevent internal moisture from penetrating to the outside of the backfill, reducing the strength loss of the material after weathering, and finally obtaining an ultra-high water backfill material with weathering resistance.

[0032] Specifically, the viscosity of hydroxypropyl methylcellulose ether is 50,000 mPa·s. Hydroxypropyl methylcellulose ether is a high molecular weight polymer with excellent thickening effects. Controlling its viscosity to 50,000 mPa·s can effectively regulate the rheological properties of ultra-high water backfill materials, enhance the adhesion between ultra-high water backfill materials and the substrate (such as concrete, masonry, etc.), and for backfill materials that need to remain stable for a long time, the viscosity of hydroxypropyl methylcellulose ether can also effectively prevent early evaporation or loss of moisture, ensuring that the material maintains good workability without losing water.

[0033] As one possible implementation method of this application, the modified silicone compound is zirconium silicone.

[0034] Specifically, zirconium silicate has the chemical formula (CH3)3SiZr(C2H5)2, which is a covalent compound formed by the combination of zirconium and silicon central ions linked by organic groups. It has active silicon-oxygen bonds (Si-O) and the reactivity of zirconium. When this compound is exposed to a humid environment, water molecules contacting its surface will trigger a condensation reaction. This reaction will lead to the hydrolysis and further condensation of organosilicon groups (such as CH3Si- or C2H5Si-), generating silicon oxide (Si-O-Si) chains or network structures. These hydrolysis products will gradually crosslink to form crystals. Especially under high humidity conditions, this reaction will be more significant, thus forming a harder silicon-oxygen network structure. Therefore, the condensation crystallization phenomenon of zirconium silicate inside the ultra-high water filling material can fill the voids inside the material, thereby preventing the loss of moisture inside the ultra-high water filling material.

[0035] As one possible implementation of this application, the organosilanol compound is sodium methylsilanolate.

[0036] Specifically, sodium methylsilanolate, with the chemical formula (CH3)3SiONa, is a compound formed by a methyl silicon group (CH3Si) and sodium ions linked by a silicon-oxygen bond (Si-O). Its structure contains methyl (CH3) groups and silicon-oxygen bonds (Si-O). Due to the non-polar nature of the methyl groups, it has very low surface tension. These hydrophobic groups form an ordered directional arrangement on the material surface, effectively repelling moisture and exhibiting strong hydrophobicity. This allows it to form a protective film on the surface of ultra-high water backfill materials, effectively preventing further water penetration and reducing water loss during weathering. At the same time, the hydrophobic organosilicon molecular film helps reduce water evaporation on the material surface, maintaining the stability of ultra-high water backfill materials. Furthermore, sodium methylsilanolate can react with zirconium silicone to further crosslink, forming a denser and more durable silicon-oxygen network structure. This structure enhances the waterproofness and weather resistance of the material surface, thereby slowing down water loss. Even when exposed to humid or damp environments for a long time, it can reduce water loss in ultra-high water backfill materials and delay the weathering process.

[0037] As one possible implementation of this application, the A component powder comprises, by weight, 70-95 parts of sulfoaluminate clinker, 5-30 parts of aluminate clinker, 5-10 parts of lithium slag, 0.1-0.5 parts of tartaric acid, and 0.1-1 parts of hydroxypropyl methylcellulose ether.

[0038] As one possible implementation of this application, the B component powder comprises, by weight, 65-80 parts of anhydrous phosphogypsum, 20-30 parts of quicklime, 3-5 parts of bentonite, and 0.5-2 parts of sodium carbonate.

[0039] The embodiments of this application also provide a method for preparing a weather-resistant, high-water-content backfill material, comprising the following steps:

[0040] Add the permeation crystallization masterbatch to water, stir and mix well to obtain the permeation crystallization liquid;

[0041] Add the penetrating crystallization liquid to the A component powder, stir and mix well to obtain the A component slurry;

[0042] The permeation crystallization liquid is added to the B component powder and stirred until well mixed to obtain the B component slurry.

[0043] After mixing the A component slurry with the B component slurry, a weather-resistant ultra-high water filling material is obtained.

[0044] This application involves separately adding component A powder and component B powder to a penetrating crystallizing liquid to form a single-component slurry. When these are then mixed, the mixed slurry can generate a large amount of ettringite within a certain time, forming a needle-like structure that intersects into a network. This structure can reach the predetermined design strength in a short time and not only has good hardening properties but also good resistance to weathering and water loss. When injected into the goaf, it can provide timely roof support, effectively preventing roof collapse and achieving the goals of goaf retention and goaf filling.

[0045] As one possible implementation of this application, in the step of adding the permeation crystallization masterbatch to water, the permeation crystallization masterbatch is added to water at a ratio of 3wt%-10wt%.

[0046] Preferably, when the permeation crystallization masterbatch is added to water at a ratio of 5 wt%, it has a better resistance to weathering and water loss, and can effectively reduce the strength loss of the material after weathering.

[0047] In one possible implementation of this application, in the step of adding the penetrating crystallization liquid to the A component powder, the mass ratio of the A component powder to the penetrating crystallization liquid is 1:(3-11).

[0048] In one possible implementation of this application, in the step of adding the penetrating crystallization liquid to the B component powder, the mass ratio of the B component powder to the penetrating crystallization liquid is 1:(3-11).

[0049] Specifically, the mass ratio of component A powder to penetrating crystallizing liquid and the mass ratio of component B powder to penetrating crystallizing liquid are both 1:(3-11). The specific ratio can be selected according to the site conditions and a suitable water-cement ratio can be used.

[0050] In one possible implementation of this application, in the step of mixing the A component slurry and the B component slurry, the A component slurry and the B component slurry are mixed in an equal volume ratio.

[0051] The technical solutions described above in this application will be explained in detail below with reference to specific embodiments.

[0052] Example 1

[0053] A weather-resistant, high-water-content backfill material is prepared by the following steps:

[0054] Zirconium silicate and sodium methylsiloxane were mixed at a mass ratio of 7:3 to obtain a penetrating crystallization masterbatch;

[0055] Mix 88g of sulfoaluminate clinker, 8g of aluminate clinker, 5g of lithium slag, 0.2g of tartaric acid, and 0.1g of hydroxypropyl methylcellulose ether to obtain component A powder;

[0056] Mix 75g of anhydrous phosphogypsum, 20g of quicklime, 5g of bentonite, and 1g of sodium carbonate to obtain component B powder;

[0057] Add the penetrating crystallization masterbatch to water at a ratio of 5 wt%, stir and mix well to obtain the penetrating crystallization liquid.

[0058] The A component powder and the penetrating crystallization liquid are mixed at a mass ratio of 1:3 to obtain the A component slurry.

[0059] The B component powder and the penetrating crystallization liquid were mixed at a mass ratio of 1:3 to obtain the B component slurry.

[0060] After mixing the A component slurry and the B component slurry in equal volume ratio, a weather-resistant ultra-high water filling material is obtained.

[0061] Example 2

[0062] A weather-resistant, high-water-content backfill material is prepared by the following steps:

[0063] Zirconium silicate and sodium methylsiloxane were mixed at a mass ratio of 8:2 to obtain a penetrating crystallization masterbatch;

[0064] Mix 90g of sulfoaluminate clinker, 15g of aluminate clinker, 5g of lithium slag, 0.2g of tartaric acid and 1g of hydroxypropyl methylcellulose ether to obtain component A powder;

[0065] Mix 70g of anhydrous phosphogypsum, 20g of quicklime, 8g of bentonite and 2g of sodium carbonate to obtain component B powder.

[0066] Add the penetrating crystallization masterbatch to water at a ratio of 5 wt%, stir and mix well to obtain the penetrating crystallization liquid.

[0067] The A component powder and the penetrating crystallization liquid are mixed at a mass ratio of 1:4 to obtain the A component slurry.

[0068] The B component powder and the penetrating crystallization liquid were mixed at a mass ratio of 1:4 to obtain the B component slurry.

[0069] After mixing the A component slurry and the B component slurry in equal volume ratio, a weather-resistant ultra-high water filling material is obtained.

[0070] Example 3

[0071] A weather-resistant, high-water-content backfill material is prepared by the following steps:

[0072] Zirconium silicate and sodium methylsiloxane were mixed at a mass ratio of 6:4 to obtain a penetrating crystallization masterbatch;

[0073] Mix 70g of sulfoaluminate clinker, 5g of aluminate clinker, 5g of lithium slag, 0.1g of tartaric acid and 0.1g of hydroxypropyl methylcellulose ether to obtain component A powder;

[0074] Mix 65g of anhydrous phosphogypsum, 20g of quicklime, 3g of bentonite and 0.5g of sodium carbonate to obtain component B powder;

[0075] Add the permeation crystallization masterbatch to water at a ratio of 3 wt%, stir and mix well to obtain the permeation crystallization liquid.

[0076] The A component powder and the penetrating crystallization liquid are mixed at a mass ratio of 1:5 to obtain the A component slurry.

[0077] The B component powder and the penetrating crystallization liquid were mixed at a mass ratio of 1:5 to obtain the B component slurry.

[0078] After mixing the A component slurry and the B component slurry in equal volume ratio, a weather-resistant ultra-high water filling material is obtained.

[0079] Example 4

[0080] A weather-resistant, high-water-content backfill material is prepared by the following steps:

[0081] Zirconium silicate and sodium methylsiloxane were mixed at a mass ratio of 8:1 to obtain a penetrating crystallization masterbatch;

[0082] Mix 95g of sulfoaluminate clinker, 30g of aluminate clinker, 10g of lithium slag, 0.5g of tartaric acid and 1g of hydroxypropyl methylcellulose ether to obtain component A powder;

[0083] Mix 80g of anhydrous phosphogypsum, 30g of quicklime, 5g of bentonite, and 2g of sodium carbonate to obtain component B powder;

[0084] Add the permeation crystallization masterbatch to water at a ratio of 10 wt%, stir and mix well to obtain the permeation crystallization liquid.

[0085] The A component powder and the penetrating crystallization liquid were mixed at a mass ratio of 1:6 to obtain the A component slurry.

[0086] The B component powder and the penetrating crystallization liquid were mixed at a mass ratio of 1:6 to obtain the B component slurry.

[0087] After mixing the A component slurry and the B component slurry in equal volume ratio, a weather-resistant ultra-high water filling material is obtained.

[0088] Example 5

[0089] Compared with Example 1, the powder of component A and the penetrating crystallization liquid were stirred at a mass ratio of 1:7, and the powder of component B and the penetrating crystallization liquid were stirred at a mass ratio of 1:7, while the remaining steps remained unchanged.

[0090] Example 6

[0091] Compared with Example 1, the powder of component A and the penetrating crystallization liquid were stirred at a mass ratio of 1:8, and the powder of component B and the penetrating crystallization liquid were stirred at a mass ratio of 1:8, while the remaining steps remained unchanged.

[0092] Example 7

[0093] Compared with Example 1, the powder of component A and the penetrating crystallization liquid were stirred at a mass ratio of 1:9, and the powder of component B and the penetrating crystallization liquid were stirred at a mass ratio of 1:9, while the remaining steps remained unchanged.

[0094] Example 8

[0095] Compared with Example 1, the powder of component A and the penetrating crystallization liquid were stirred at a mass ratio of 1:10, and the powder of component B and the penetrating crystallization liquid were stirred at a mass ratio of 1:10, while the remaining steps remained unchanged.

[0096] Example 9

[0097] Compared with Example 1, the powder of component A and the penetrating crystallization liquid were stirred at a mass ratio of 1:11, and the powder of component B and the penetrating crystallization liquid were stirred at a mass ratio of 1:11, while the remaining steps remained unchanged.

[0098] Comparative Example 1

[0099] Compared to Example 1, no permeation crystallization masterbatch was added, but all other steps were the same.

[0100] Comparative Example 2

[0101] Compared to Example 2, no permeation crystallization masterbatch was added, but all other steps were the same.

[0102] Comparative Example 3

[0103] Compared to Example 3, no permeation crystallization masterbatch was added, but all other steps were the same.

[0104] Comparative Example 4

[0105] Compared to Example 4, no permeation crystallization masterbatch was added, but all other steps were the same.

[0106] Experimental Example

[0107] The ultra-high water backfill materials prepared in the embodiments and comparative examples of this application were weathered under natural conditions for 7 days, and their compressive strength was tested. Simultaneously, the compressive strength of the ultra-high water backfill materials under sealed curing conditions was also tested. Comparative images of the materials after 7 days of weathering were taken, and the strength test results are shown in Table 1 below. Physical images of the ultra-high water backfill materials of Examples 1, 4, Comparative Examples 1 and 4 after 7 days of weathering are also shown below. Figure 1 As shown. The compressive strength was tested according to the method specified in the standard MT / T420-1995 "High-Moisture Filling Materials".

[0108] Table 1

[0109]

[0110]

[0111] As shown in Table 1, under sealed curing conditions, the ultra-high water backfill material prepared in this application embodiment has a higher compressive strength than the comparative example. After weathering, the compressive strength of the ultra-high water backfill material in this application embodiment does not decrease significantly compared to the compressive strength under sealed curing conditions, while the compressive strength of the ultra-high water backfill material in the comparative example decreases significantly compared to the compressive strength under sealed curing conditions. This indicates that by incorporating a penetrating crystallizing masterbatch into water, this application can effectively improve the compressive strength of the ultra-high water backfill material and reduce the loss of compressive strength after weathering.

[0112] exist Figure 1In the figures, (a) is a photograph of the ultra-high water filling material of Example 1 after 7 days of weathering; (b) is a photograph of the ultra-high water filling material of Example 4 after 7 days of weathering; (c) is a photograph of the ultra-high water filling material of Comparative Example 1 after 7 days of weathering; and (d) is a photograph of the ultra-high water filling material of Comparative Example 4 after 7 days of weathering. It can be seen that the ultra-high water filling materials of Examples 1 and 4 showed no significant changes in appearance after 7 days of weathering, and the water loss was not obvious. However, the ultra-high water filling materials of Comparative Examples 1 and 4 showed significant water loss after 7 days of weathering, leading to structural damage. This indicates that by incorporating a penetrating crystallizing masterbatch into the water, this application can effectively prevent the loss of internal moisture from the ultra-high water filling material and maintain superior hardening performance.

[0113] The above are merely optional embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An ultra-high water content anti-weathering filling material, characterized in that, The anti-weathering super-high water filling material comprises a penetrating crystallization mother material, an A-component powder and a B-component powder. The penetrating crystallization mother material is composed of silicone zirconium and sodium methylsilanol, and the mass ratio of the silicone zirconium to the sodium methylsilanol is 7:

3. The A-component powder comprises sulphoaluminate clinker, alumina clinker, lithium slag, tartaric acid and hydroxypropyl methyl cellulose ether, and the viscosity of the hydroxypropyl methyl cellulose ether is 50,000 mPa·s. The B-component powder comprises anhydrous phosphogypsum, quicklime, bentonite and sodium carbonate. The preparation method of the anti-weathering super-high water filling material comprises the following steps: The penetrating crystallization mother material is added into water in a proportion of 5wt%, and the penetrating crystallization liquid material is obtained after stirring and mixing; The A-component slurry is obtained after the A-component powder and the penetrating crystallization liquid material are stirred and mixed, and the mass ratio of the A-component powder to the penetrating crystallization liquid material is 1:(3-11). The B-component slurry is obtained after the B-component powder and the penetrating crystallization liquid material are stirred and mixed, and the mass ratio of the B-component powder to the penetrating crystallization liquid material is 1:(3-11). The anti-weathering super-high water filling material is obtained after the A-component slurry and the B-component slurry are mixed.

2. The weather resistant ultra-high water-filled material according to claim 1, wherein, The A-component powder comprises sulphoaluminate clinker 70-95 parts, alumina clinker 5-30 parts, lithium slag 5-10 parts, tartaric acid 0.1-0.5 parts and hydroxypropyl methyl cellulose ether 0.1-1 part by weight.

3. The weather resistant ultra-high water-filled material of claim 1, wherein, The B-component powder comprises anhydrous phosphogypsum 65-80 parts, quicklime 20-30 parts, bentonite 3-5 parts and sodium carbonate 0.5-2 parts by weight.

4. The weather resistant ultra-high water-filled material of claim 1, wherein, In the preparation method of the anti-weathering super-high water filling material, the A-component slurry and the B-component slurry are mixed in an equal volume ratio.

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