Cementing material for inhibiting metamorphic rock alkali aggregate reaction and preparation method thereof

A technology of cementitious materials and alkali aggregates, applied in the field of building materials, can solve problems such as alkali aggregate reaction, and achieve the effect of excellent reaction performance

Pending Publication Date: 2021-10-08
贵阳中建西部建设有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application provides a cementitious material that inhibits metamorphic rock-alkali aggregate reaction and its pre

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  • Cementing material for inhibiting metamorphic rock alkali aggregate reaction and preparation method thereof
  • Cementing material for inhibiting metamorphic rock alkali aggregate reaction and preparation method thereof

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[0020] The technical solutions of the present invention are described in further detail below through examples, which are explanations of the present invention rather than limitations.

[0021] A cementitious material inhibiting metamorphic rock-alkali aggregate reaction and a preparation method thereof, comprising the following steps:

[0022] Step 1: Dry cement, silica fume, phosphorus slag powder, waste glass powder, and fly ash, and then weigh the cement, silica fume, phosphorus slag powder, waste glass powder, fly ash, and early-strength activator in proportion , AZK auxiliary agent.

[0023] Step 2: Put the weighed cement, silica fume, phosphorus slag powder, waste glass powder, fly ash, early strength activator, and AZK auxiliary agent in a small dry test mill and mix them well for 1-2 minutes to obtain metamorphic rock alkali Aggregate-reactive cementitious materials.

[0024] The composition mass ratio of embodiment 1-6 is as follows:

[0025]

[0026] Each comp...

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Abstract

The invention relates to a cementing material for inhibiting metamorphic rock alkali aggregate reaction and a preparation method thereof. The cementing material comprises the following components: cement, silica fume, phosphorus slag powder, waste glass powder, fly ash, an early strength activator and an AZK auxiliary agent according to a mass ratio of (400-620): (50-100): (90-105): (75-250): (89-193): (3.0-5.0): (7.0-10.0). The cementing material for inhibiting metamorphic rock alkali aggregate reaction is developed through a creative synergistic effect of a cementing material compounding technology, a cementing material secondary hydration process control technology and a cementing material excitation technology, the performance of inhibiting metamorphic rock alkali aggregate reaction is excellent, the comprehensive utilization of industrial wastes such as silica fume, fly ash, phosphorus slag powder and waste glass powder is further enhanced, and the cementing material is green and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a cementitious material capable of inhibiting metamorphic rock-alkali aggregate reaction and a preparation method thereof. Background technique [0002] Metamorphic rocks are widely distributed in my country, especially in Guizhou, accounting for more than 1 / 6 of the total area of ​​the whole region. However, due to their potential alkali activity, metamorphic rocks have not been widely used in concrete. However, due to the limitation of geographical environment and natural resources in Guizhou, only local rock aggregates and machine-made sand can be used to prepare concrete. With the advancement of urbanization and rural revitalization in western my country, a large number of infrastructure projects such as municipalities, highways, and high-speed railways have been fully constructed. The demand for sand and gravel aggregates is huge, and local materials m...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/50C04B2201/52C04B18/146C04B18/145C04B18/08C04B14/22C04B24/122C04B22/10C04B22/148C04B24/04C04B12/04Y02P40/10
Inventor 班录江林喜华袁棕赵士豪李曾光朱熹桐李馨慧王军
Owner 贵阳中建西部建设有限公司
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