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A kind of high-strength cement and preparation method thereof

A high-strength cement and cement clinker technology, applied in the field of cement, can solve the problems of low strength, achieve the effects of improving flame retardancy, facilitating market application and promotion, and increasing strength

Active Publication Date: 2022-07-12
DENGZHOU CHINA UNITED CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of low strength of cement after curing in the prior art, the first object of the present invention is to provide a high-strength cement, which has the advantage of increasing cement strength

Method used

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  • A kind of high-strength cement and preparation method thereof
  • A kind of high-strength cement and preparation method thereof

Examples

Experimental program
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Effect test

preparation example 1

[0040] The preparation method of the enhancer comprises the following steps,

[0041] a. Add 1 g of borate coupling agent to 70 g of absolute ethanol, stir and mix at 55°C to obtain a modifier;

[0042] b. Add 70g of magnesium borate whiskers to the modifier in a, use an ultrasonic vibrator for ultrasonic vibration for 30min, filter with suction, wash with absolute ethanol, and dry at 80°C for 4h to obtain a reinforcing agent; magnesium borate crystals The whiskers have an aspect ratio of 50.

preparation example 2

[0044] The preparation method of the enhancer comprises the following steps,

[0045] a. Add 1.5g of borate ester coupling agent to 65g of absolute ethanol, stir and mix evenly at 60°C to obtain a modifier;

[0046]b. Add 80g of magnesium borate whiskers to the modifier in a, use an ultrasonic vibrator for ultrasonic vibration for 35min, filter with suction, wash with absolute ethanol, and dry at 85°C for 3.5h to obtain a reinforcing agent; magnesium borate The whiskers have an aspect ratio of 68.

preparation example 3

[0048] The preparation method of the enhancer comprises the following steps,

[0049] a. Add 2g of borate ester coupling agent to 60g of absolute ethanol, stir and mix evenly at 65°C to obtain a modifier;

[0050] b. Add 90 g of magnesium borate whiskers to the modifier in a, use an ultrasonic vibrator for ultrasonic vibration for 40 minutes, filter with suction, wash with absolute ethanol, and dry at 90°C for 3 hours to obtain a reinforcing agent; magnesium borate crystals The whiskers have an aspect ratio of 80.

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Abstract

The invention relates to the technical field of cement production, and specifically discloses a high-strength cement and a preparation method thereof, comprising cement clinker and admixture. The weight ratio of cement clinker and admixture is (2-4):1, It is made from the following raw materials by weight percentage: limestone 85-87%, shale 7.5-8.5%, non-ferrous metal slag 5.0-6.0%, sulfuric acid slag 0.4-0.6%. Its preparation method is, S1: preparation of raw meal, limestone, shale, non-ferrous metal slag, sulfuric acid slag are mixed and pulverized to obtain raw meal; S2: preparation of cement clinker, raw meal is preheated, and then at 1150 Calcining at ‑1250℃ for 30‑35min, cooling to obtain cement clinker; the lime saturation coefficient KH of the cement clinker is 0.895‑0.905, the silicic acid rate SM is 2.85‑2.95, and the aluminum oxygen rate IM is 1.35‑1.45; S3: high In the preparation of strength cement, the admixture is mixed and ground with the cement clinker obtained in step S1 to obtain high strength cement. The high-strength cement prepared by the invention has the advantage of high strength.

Description

technical field [0001] The invention relates to the technical field of cement, and more particularly, to a high-strength cement and a preparation method thereof. Background technique [0002] Cement is a powdered hydraulic inorganic cementitious material. After adding an appropriate amount of water, it can become a plastic slurry, which can be hardened in both air and water, and can firmly bond materials such as sand and stone together. For a long time, as an important cementitious material, it has been widely used in civil engineering, water conservancy, national defense and other projects. [0003] With the acceleration of urban construction, the use of cement is increasing, and many raw materials used in cement production are natural non-renewable resources, and resources will gradually decrease with the increase in use. It has become a general trend to find new alternative resources. . With the continuous deepening of the country's requirements for the reduction, recyc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/24C04B7/147C04B28/00C04B111/28
CPCC04B7/24C04B7/147C04B28/00C04B2111/28C04B2201/50C04B14/383C04B14/28C04B18/08C04B14/06Y02W30/91
Inventor 张志丹王成永姚保喜
Owner DENGZHOU CHINA UNITED CEMENT