Method for analyzing influence of tuff on cement performance

Abstract

The invention provides a method for analyzing influence of tuff on cement performance, and relates to the technical field of cement production. Comprising the following steps: S1, selecting a tuff-cement composite material with a specific proportion; s2, carrying out hydration reaction, and recording hydration reaction conditions; s3, collecting the hydrated tuff-cement composite material sample, and carrying out microstructure analysis; s4, evaluating the influence on the microstructure of the cement hydration product; s5, analyzing the influence of the tuff on the cement according to the evaluation result; according to the method for analyzing the influence of tuff blending on the cement performance, the influence of tuff powder blending on the cement performance is systematically studied through tuff and cement mixing, hydration reaction, microstructure analysis and performance evaluation, and therefore in the application process, the cement performance can be analyzed on the basis of the influence situation. The optimal adding proportion of the tuff powder is determined, so that the performance of the cement is effectively regulated and controlled, and the application requirements are better met.

Description

Technical Field

[0001] The present application relates to the technical field of cement production, and in particular to a method for analyzing the effect of tuff addition on cement performance. Background Art

[0002] As the demand for concrete continues to increase, traditional cement, as one of the main raw materials of concrete, is used in huge quantities, while mineral admixtures used with cement, such as fly ash and mineral powder, are in short supply, so it is necessary to explore alternatives.

[0003] Tuff powder has attracted much attention as a cement alternative due to its abundant resources, low carbon emissions, and potential to improve concrete performance. However, the effects of tuff replacement on cement performance have not been systematically studied.

[0004] In view of this, the present application aims to provide an analytical method for the effect of tuff addition on cement properties, so as to systematically study the effect of tuff powder addition on cement properties. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a method for analyzing the effect of tuff addition on cement performance, which can solve the technical problem of analyzing the effect of tuff on cement performance by replacing part of the ingredients.

[0006] The present invention provides a method for analyzing the effect of tuff addition on cement performance, comprising the following steps:

[0007] S1. Mixing tuff and cement in a specific ratio to form a tuff-cement composite material;

[0008] S2. The tuff-cement composite material was hydrated and the time, temperature and humidity conditions during the hydration process were recorded;

[0009] S3. Collect samples of the hydrated tuff-cement composite material and perform microstructural analysis to observe the distribution and morphological changes of the tuff particles in the cement matrix;

[0010] S4. Evaluate the effect of the distribution and morphology of the tuff particles on the microstructure of cement hydration products;

[0011] S5. Based on the evaluation results, analyze the effect of tuff addition on the mechanical properties, durability and workability of cement.

[0012] Furthermore, in step S1 , during the mixing of tuff and cement, it is necessary to ensure that the tuff particles are evenly dispersed in the cement matrix.

[0013] Furthermore, in step S2, the hydration reaction is carried out under standard conditions, including constant temperature, humidity and reaction time.

[0014] Furthermore, in step S3, the microstructure analysis adopts any one of scanning electron microscopy, X-ray diffraction and transmission electron microscopy to obtain the distribution and morphological information of tuff particles in the cement matrix.

[0015] Furthermore, in step S4, the evaluation includes analyzing the crystal phase composition, pore structure, and interface transition zone characteristics of the cement hydration product.

[0016] Furthermore, in step S5, the mechanical properties include compressive strength, flexural strength and tensile strength; the durability includes impermeability, frost resistance and chemical corrosion resistance; and the workability includes fluidity, setting time and plasticity.

[0017] Furthermore, the method also includes a step of conducting long-term performance monitoring on the cement blended with tuff to evaluate the impact of tuff on the long-term stability and durability of the cement.

[0018] Furthermore, long-term performance monitoring includes follow-up tests on the strength, volume stability and chemical stability of the cement hardened body.

[0019] Furthermore, the method also includes pre-treating the tuff to improve the compatibility and reactivity of the tuff with cement.

[0020] Further, the pretreatment includes any of grinding, screening, chemical modification and heat treatment.

[0021] Beneficial effects of the present invention:

[0022] The analysis method of the influence of tuff addition on cement performance provided by the present invention systematically studies the influence of tuff powder addition on cement performance by mixing tuff and cement, carrying out hydration reaction, microstructure analysis and performance evaluation. Therefore, during the application process, the optimal addition ratio of tuff powder can be determined based on the influence situation, thereby achieving effective regulation of cement performance and better meeting application requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1It is a process flow chart in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, the present invention will be described more fully below through examples, with preferred embodiments of the present invention provided below. However, the present invention can be implemented in a variety of different forms and is not limited to the embodiments described herein. Any other embodiments obtained by modifying or equivalently replacing the technical solution of the present invention without inventive results are within the scope of protection of the present invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for describing specific embodiments and are not intended to limit the present invention.

[0027] The numerical values disclosed in the embodiments of the present invention are approximate values, not definite values. Where errors or experimental conditions permit, all values within the error range may be included without being limited to the specific numerical values disclosed in the embodiments of the present invention.

[0028] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0029] Example

[0030] See also Figure 1 As shown, this embodiment provides a method for analyzing the effect of adding tuff on cement performance, comprising the following steps:

[0031] S1. Mixing tuff and cement in a specific ratio to form a tuff-cement composite material;

[0032] S2. The tuff-cement composite material was hydrated and the time, temperature and humidity conditions during the hydration process were recorded;

[0033] S3. Collect samples of the hydrated tuff-cement composite material and perform microstructural analysis to observe the distribution and morphological changes of the tuff particles in the cement matrix;

[0034] S4. Evaluate the effect of the distribution and morphology of the tuff particles on the microstructure of cement hydration products;

[0035] S5. Based on the evaluation results, analyze the effect of tuff addition on the mechanical properties, durability and workability of cement.

[0036] In step S1, during the mixing of tuff and cement, it is necessary to ensure that the tuff particles are evenly dispersed in the cement matrix. This helps reduce stress concentration within the material, improves the overall performance of the composite material, and ensures the accuracy of back-end testing and evaluation.

[0037] In step S2, the hydration reaction is carried out under standard conditions, including constant temperature, humidity, and reaction time. By carrying out the hydration reaction under standard conditions, the accuracy and comparability of the experimental results can be ensured, facilitating an objective assessment of the effect of tuff on cement properties.

[0038] In step S3, the microstructural analysis utilizes any one of scanning electron microscopy, X-ray diffraction, and transmission electron microscopy to obtain information on the distribution and morphology of tuff particles within the cement matrix. Advanced microstructural analysis techniques can accurately capture information on the distribution and morphology of tuff particles within the cement matrix, providing reliable data support for performance evaluation.

[0039] In step S4, the evaluation includes analyzing the crystalline composition, pore structure, and interface transition zone characteristics of the cement hydration products. This in-depth analysis of the crystalline composition, pore structure, and interface transition zone characteristics of the cement hydration products provides a more comprehensive understanding of the impact of tuff on the microstructure of cement, thereby predicting its impact on macroscopic properties.

[0040] In step S5, the mechanical properties include compressive strength, flexural strength, and tensile strength; durability includes impermeability, frost resistance, and chemical corrosion resistance; and workability includes fluidity, setting time, and plasticity. By defining specific evaluation indicators for mechanical properties, durability, and workability, a basis and standard are provided for performance evaluation, thereby achieving more accurate assessment.

[0041] The method also includes a step of conducting long-term performance monitoring of cement containing tuff to assess the impact of tuff on the long-term stability and durability of the cement. By conducting long-term performance monitoring of cement containing tuff, the impact of tuff on the long-term stability and durability of cement can be assessed, providing a safe guarantee for the long-term application of cement materials.

[0042] Among them, long-term performance monitoring includes follow-up tests on the strength, volume stability and chemical stability of cement hardened body to fully reflect the impact of tuff on the long-term performance of cement.

[0043] The method also includes pre-treating the tuff to improve its compatibility and reactivity with cement. Specifically, pre-treatment includes any of grinding, screening, chemical modification, and heat treatment. Pre-treating the tuff can improve its compatibility and reactivity with cement, thereby improving the overall performance of the composite material and enhancing the accuracy of testing and evaluation. During testing and evaluation, the appropriate pre-treatment method can be selected based on the specific characteristics of the tuff and application requirements to achieve optimal compatibility and reactivity.

[0044] In summary, the analysis method of the influence of tuff addition on cement performance provided in this embodiment systematically studies the influence of tuff powder addition on cement performance by mixing tuff and cement, conducting hydration reaction, microstructure analysis and performance evaluation. Therefore, during the application process, the optimal addition ratio of tuff powder can be determined based on the influence situation, thereby achieving effective regulation of cement performance and better meeting application needs.

[0045] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for analyzing the effect of tuff addition on cement performance, characterized by: The following steps are involved: S1. Mixing tuff and cement in a specific ratio to form a tuff-cement composite material; S2. The tuff-cement composite material was hydrated and the time, temperature and humidity conditions during the hydration process were recorded; S3. Collect samples of the hydrated tuff-cement composite material and perform microstructural analysis to observe the distribution and morphological changes of the tuff particles in the cement matrix; S4. Evaluate the effect of the distribution and morphology of the tuff particles on the microstructure of cement hydration products; S5. Based on the evaluation results, analyze the effect of tuff addition on the mechanical properties, durability and workability of cement.

2. The method for analyzing the effect of tuff addition on cement performance according to claim 1, characterized in that: In step S1 , during the mixing of tuff and cement, it is necessary to ensure that the tuff particles are evenly dispersed in the cement matrix.

3. The method for analyzing the effect of tuff addition on cement performance according to claim 1, characterized in that: In step S2, the hydration reaction is carried out under standard conditions, including constant temperature, humidity and reaction time.

4. The method for analyzing the effect of tuff addition on cement performance according to claim 1, characterized in that: In step S3, the microstructure analysis adopts any one of scanning electron microscopy, X-ray diffraction and transmission electron microscopy to obtain the distribution and morphological information of tuff particles in the cement matrix.

5. The method for analyzing the effect of tuff addition on cement performance according to claim 1, characterized in that: In step S4, the evaluation includes analyzing the crystal phase composition, pore structure, and interface transition zone characteristics of the cement hydration product.

6. The method for analyzing the effect of tuff addition on cement performance according to claim 1, characterized in that: In step S5, the mechanical properties include compressive strength, flexural strength and tensile strength; the durability includes impermeability, frost resistance and chemical corrosion resistance; and the workability includes fluidity, setting time and plasticity.

7. The method for analyzing the effect of tuff addition on cement performance according to any one of claims 1 to 6, characterized in that: The method further comprises the step of conducting long-term performance monitoring on the cement blended with tuff to evaluate the effect of tuff on the long-term stability and durability of the cement.

8. The method for analyzing the effect of tuff addition on cement performance according to claim 7, characterized in that: Long-term performance monitoring includes follow-up tests on the strength, volume stability and chemical stability of the cement hardened body.

9. The method for analyzing the effect of tuff addition on cement performance according to any one of claims 1 to 6, characterized in that: The method further comprises pre-treating the tuff to improve the compatibility and reactivity of the tuff with cement.

10. The method for analyzing the effect of tuff addition on cement performance according to claim 9, characterized in that: Pretreatment includes any of grinding, screening, chemical modification and heat treatment.

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