阅读说明：本技术 一种灌浆材料以及制备方法 (Grouting material and preparation method thereof ) 是由 韩永宏 严国华 金玉泉 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种灌浆材料,其特征在于,所述灌浆材料包括：环氧树脂混合物、硬化剂以及灌浆基材,所述环氧树脂混合物至少包括环氧树脂材料。本发明提升了灌浆材料的性能,具有流动性强、无收缩、防腐蚀、耐磨抗压强度高的特点。(The invention discloses a grouting material, which is characterized by comprising the following components in parts by weight: the epoxy resin composite comprises an epoxy resin mixture, a hardening agent and a grouting base material, wherein the epoxy resin mixture at least comprises an epoxy resin material. The invention improves the performance of the grouting material, and has the characteristics of strong fluidity, no shrinkage, corrosion resistance and high wear and compression strength.)

1. A grouting material, characterized in that it comprises: the epoxy resin composite comprises an epoxy resin mixture, a hardening agent and a grouting base material, wherein the epoxy resin mixture at least comprises an epoxy resin material.

2. The grouting material of claim 1, wherein the epoxy resin mixture is a mixture of bisphenol A epoxy resin, methoxysilane, and glycidyl ether.

3. The grouting material of claim 1, wherein the epoxy resin mixture comprises, in parts by weight: 80-90 parts of bisphenol A type epoxy resin, 1-2 parts of methoxysilane and 8-10 parts of glycidyl ether.

4. The grouting material of claim 1, wherein the hardener is a mixture of polyetheramine, modified diethylenetriamine, and modified polyamide.

5. The grouting material of claim 1, wherein the hardener comprises, in parts by weight: 30-40 parts of polyether amine, 40-60 parts of modified diethylenetriamine and 5-10 parts of modified polyamide.

6. The grouting material of claim 1, wherein the grouting base material is quartz sand.

7. The grouting material of claim 1, wherein the grouting base material is prepared by physically and uniformly mixing quartz sand with different mesh sizes in a mixer.

8. A method of preparing a grouting material, comprising: preparing an epoxy resin mixture, a hardening agent and a grouting base material, and then mixing the epoxy resin mixture, the hardening agent and the grouting base material to prepare the grouting material.

9. The method of preparing a grouting material according to claim 8, wherein preparing the epoxy resin mixture comprises: taking 80-90 parts of bisphenol A epoxy resin, 1-2 parts of methoxysilane and 8-10 parts of glycidyl ether according to the weight parts of the raw materials, and physically mixing in a mixing tank to prepare an epoxy resin mixture, wherein the preparation of the hardener comprises the following steps: taking 30-40 parts of polyetheramine, 40-60 parts of modified diethylenetriamine and 5-10 parts of modified polyamide according to the weight parts of the raw materials, and physically and uniformly mixing the raw materials in a mixing tank to prepare the hardening agent, wherein the preparation of the grouting base material comprises the following steps: the quartz sand with different mesh specifications is physically and uniformly mixed to obtain the quartz sand.

10. The method of preparing a grouting material according to claim 9, wherein the preparing of the grouting material by mixing an epoxy resin mixture, a hardener, and a grouting base material comprises: mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: the 23 weight portions are stirred and mixed evenly.

Technical Field

The invention relates to the technical field of grouting, in particular to a grouting material and a preparation method thereof.

Background

The grouting material is an injection material injected into cracks or cavities of the foundation to achieve a reinforcing or water leakage preventing effect, and if the performance of the grouting material is poor, cracks are easily generated in the building, the attractiveness of the building is affected, and the service life of the building can be affected if the grouting material is not treated.

Disclosure of Invention

The invention provides a grouting material and a preparation method thereof, which improve the performance of the grouting material and have the characteristics of strong fluidity, no shrinkage, corrosion resistance, high wear resistance and high compressive strength.

In order to solve the above technical problems, the present invention provides a grouting material comprising: the epoxy resin composite comprises an epoxy resin mixture, a hardening agent and a grouting base material, wherein the epoxy resin mixture at least comprises an epoxy resin material.

Preferably, in the above technical solution, the epoxy resin mixture is a mixture of bisphenol a epoxy resin, methoxysilane and glycidyl ether.

As a preference of the above technical solution, the epoxy resin mixture comprises, in parts by weight: 80-90 parts of bisphenol A type epoxy resin, 1-2 parts of methoxysilane and 8-10 parts of glycidyl ether.

Preferably, in the above technical solution, the hardener is a mixture of polyether amine, modified diethylenetriamine and modified polyamide.

As a preferable aspect of the above technical solution, the hardener includes, in parts by weight: 30-40 parts of polyether amine, 40-60 parts of modified diethylenetriamine and 5-10 parts of modified polyamide.

Preferably, in the above technical solution, the grouting base material is quartz sand.

Preferably, the grouting base material is prepared by physically and uniformly mixing quartz sand with different mesh specifications in a mixer.

The invention also provides a preparation method of the grouting material, which comprises the following steps: preparing an epoxy resin mixture, a hardening agent and a grouting base material, and then mixing the epoxy resin mixture, the hardening agent and the grouting base material to prepare the grouting material.

As a preference of the above technical solution, the preparation of the epoxy resin mixture comprises: taking 80-90 parts of bisphenol A epoxy resin, 1-2 parts of methoxysilane and 8-10 parts of glycidyl ether according to the weight parts of the raw materials, and physically mixing in a mixing tank to prepare an epoxy resin mixture, wherein the preparation of the hardener comprises the following steps: taking 30-40 parts of polyetheramine, 40-60 parts of modified diethylenetriamine and 5-10 parts of modified polyamide according to the weight parts of the raw materials, and physically and uniformly mixing the raw materials in a mixing tank to prepare the hardening agent, wherein the preparation of the grouting base material comprises the following steps: the quartz sand with different mesh specifications is physically and uniformly mixed to obtain the quartz sand.

Preferably, the grouting material prepared by mixing the epoxy resin mixture, the curing agent and the grouting base material comprises: mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: the 23 weight portions are stirred and mixed evenly.

The grouting material provided by the invention is prepared by mixing the epoxy resin mixture, the hardening agent and the grouting base material, has the characteristics of strong fluidity, no shrinkage, corrosion resistance and high wear-resistant and compressive strength, and greatly improves the performance of the grouting material.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

Fig. 1 is a schematic flow chart illustrating a method for preparing a grouting material according to an embodiment of the present invention;

FIG. 2 illustrates an exothermic temperature profile of a grouting material after mixing according to an embodiment of the invention;

FIG. 3 is a graph showing the frequency of vibration of a grouting material during grouting according to an embodiment of the present invention;

fig. 4 shows a graph of the exothermic temperature of one grouting material and other epoxy grouting materials according to an embodiment of the present invention.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a grouting material, including: the epoxy resin composite comprises an epoxy resin mixture, a hardening agent and a grouting base material, wherein the epoxy resin mixture at least comprises an epoxy resin material.

In a further embodiment of this example, the epoxy resin mixture is a mixture of bisphenol a epoxy resin, methoxysilane, and glycidyl ether.

In a further possible implementation of this embodiment, the epoxy resin mixture comprises, in parts by weight: 80-90 parts of bisphenol A type epoxy resin, 1-2 parts of methoxysilane and 8-10 parts of glycidyl ether.

In a further possible embodiment of this example, the hardener is a mixture of polyetheramine, modified diethylenetriamine and modified polyamide.

In a further embodiment of this embodiment, the hardener comprises, in parts by weight: 30-40 parts of polyether amine, 40-60 parts of modified diethylenetriamine and 5-10 parts of modified polyamide.

In a further embodiment of this embodiment, the grout substrate is silica sand.

In a further embodiment of this embodiment, the grouting base material is prepared by physically and uniformly mixing quartz sand with different mesh sizes in a mixer.

As shown in fig. 1, another aspect of the present embodiment provides a method for preparing a grouting material, including:

step 100: preparing an epoxy resin mixture;

step 200: preparation of the hardener

Step 300: preparing a grouting base material;

step 400: and mixing the epoxy resin mixture, the hardening agent and the grouting base material to prepare the grouting material.

In a further embodiment of this embodiment, preparing the epoxy resin mixture comprises: taking 80-90 parts of bisphenol A epoxy resin, 1-2 parts of methoxysilane and 8-10 parts of glycidyl ether according to the weight parts of the raw materials, and physically mixing in a mixing tank to prepare an epoxy resin mixture, wherein the preparation of the hardener comprises the following steps: taking 30-40 parts of polyetheramine, 40-60 parts of modified diethylenetriamine and 5-10 parts of modified polyamide according to the weight parts of the raw materials, and physically and uniformly mixing the raw materials in a mixing tank to prepare the hardening agent, wherein the preparation of the grouting base material comprises the following steps: the quartz sand with different mesh specifications is physically and uniformly mixed to obtain the quartz sand.

In a further embodiment of this embodiment, the preparing of the grouting material by mixing the epoxy resin mixture, the hardener, and the grouting base material includes: mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: the 23 weight portions are stirred and mixed evenly.

Referring to fig. 3, it can be seen that the grouting material of the present embodiment can effectively reduce the vibration of the equipment during grouting.

Referring to fig. 4, it can be seen that the heat release of the grouting material of the present embodiment is more stable than that of other epoxy resin grouting materials, and the cracking can be effectively prevented.

In order to further verify the performance of the grouting material provided by the embodiment of the invention, a plurality of samples are prepared according to the steps, wherein:

the first embodiment is as follows: weighing 80kg of bisphenol A type epoxy resin, 1kg of methoxysilane and 8kg of glycidyl ether according to the weight, and uniformly mixing to prepare an epoxy resin mixture;

uniformly mixing 30kg of polyetheramine, 40kg of modified diethylenetriamine and 5kg of modified polyamide according to weight to prepare a hardening agent;

uniformly mixing quartz sand with different mesh specifications to obtain a grouting base material; .

Mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: and stirring and mixing the components in the weight ratio of 23 uniformly to prepare a grouting material sample I.

Example two: weighing 90kg of bisphenol A type epoxy resin, 2kg of methoxysilane and 10kg of glycidyl ether according to the weight, and uniformly mixing to prepare an epoxy resin mixture;

taking 40kg of polyetheramine, 60kg of modified diethylenetriamine and 10kg of modified polyamide according to weight, and uniformly mixing to prepare a hardening agent;

uniformly mixing quartz sand with different mesh specifications to obtain a grouting base material; .

Mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: and (3) uniformly stirring and mixing the components in the weight part ratio of 23 to obtain a grouting material sample II.

Example three: weighing 85kg of bisphenol A type epoxy resin, 1.5kg of methoxysilane and 9kg of glycidyl ether according to the weight, and uniformly mixing to prepare an epoxy resin mixture;

taking 35kg of polyetheramine, 50kg of modified diethylenetriamine and 7.5kg of modified polyamide according to weight, and uniformly mixing to prepare a hardening agent;

uniformly mixing quartz sand with different mesh specifications to obtain a grouting base material;

mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: and stirring and mixing the mixture uniformly according to the weight part ratio of 23 to obtain a third grouting material sample.

Example four: weighing 81 parts of bisphenol A type epoxy resin, 1.2 parts of methoxysilane and 10 parts of glycidyl ether by weight, and uniformly mixing to prepare an epoxy resin mixture;

uniformly mixing 30kg of polyetheramine, 43kg of modified diethylenetriamine and 8kg of modified polyamide according to weight to prepare a hardening agent;

uniformly mixing quartz sand with different mesh specifications to obtain a grouting base material;

mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1: and stirring and mixing the components in the weight portion of 23 uniformly to prepare a grouting material sample IV.

Comparative example one: the shrinkage-free cement grouting agent is purchased in the market.

Comparative example two: weighing 80kg of bisphenol A type epoxy resin, 1kg of methoxysilane and 8kg of glycidyl ether according to the weight, and uniformly mixing to prepare an epoxy resin mixture;

uniformly mixing 30kg of polyetheramine, 40kg of modified diethylenetriamine and 5kg of modified polyamide according to weight to prepare a hardening agent;

uniformly mixing quartz sand with different mesh specifications to obtain a grouting base material; .

Mixing epoxy resin mixture, hardening agent and grouting base material according to the proportion of 2: 1.5: and (4) uniformly stirring and mixing the 25 weight parts of the mixture to prepare a grouting material comparison sample II.

Through detection, the samples I to IV are relative to the comparative sample I, and the samples I to IV are obviously superior to the comparative sample I in fluidity, no shrinkage, corrosion resistance, wear resistance and compressive strength.

In addition, the exothermic temperature curve obtained by detecting the exothermic temperature of the first sample is shown in fig. 2, the whole exothermic process is stable, and cracking is not easy to occur after grouting.

And the temperature of the comparative sample II is detected, and the whole heat release process is not stable enough.

Table 1: comparison of the Performance of grout sample one with that of comparative example one

As can be seen from Table 1, the grouting material of this embodiment has significantly better performance than the existing non-shrinkage cement grouting agent.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description 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 all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.