Titanium slag-based solid waste cementing material and preparation method thereof

A technology of cementitious materials and titanium slag, which is applied in the field of concrete materials to achieve low carbon emissions, good economic and social benefits, and good corrosion resistance

Active Publication Date: 2021-08-20
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

General cement enterprises can carry out production smoothly

Method used

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  • Titanium slag-based solid waste cementing material and preparation method thereof
  • Titanium slag-based solid waste cementing material and preparation method thereof
  • Titanium slag-based solid waste cementing material and preparation method thereof

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Experimental program
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Embodiment 1-12

[0044] It mainly involves a titanium slag-based solid waste cementitious material, and the raw material configuration is shown in Table 1 below.

[0045] Table 1 Raw material configuration table

[0046]

[0047] In the above raw material configuration table, granulated blast furnace slag is slag that meets the requirements of the standard GB / T 203 "Granulated Blast Furnace Slag Used in Cement"; titanium slag is obtained from blast furnace smelting pig iron and contains silicate and aluminosilicate The melt, after quenching and granulating TiO 2 Slag with a content greater than 10%; modified desulfurized gypsum and modified phosphogypsum are desulfurized gypsum and modified gypsum obtained under the conditions of burning temperature of 650-850°C and holding time greater than 20 minutes; high belite sulfur The main minerals in aluminate clinker include: C 4 A 3 、C 2 S, C 4 AF, CaSO 4 、 CT and f-CaO, the weight percentage of its mineral composition is: C 4 A 3 20-...

Embodiment 13

[0050] This embodiment mainly relates to a preparation method of titanium slag-based solid waste cementitious material, which specifically includes the following steps:

[0051]S1: First dry and grind the raw materials used for titanium slag-based materials. Considering the inconsistency of the grindability of each material, the materials used can be ground individually or mixed according to the actual situation, such as granulated blast furnace slag and titanium slag , silicomanganese slag, etc. are ground in an appropriate proportion. Fly ash and modified electrolytic manganese slag can also be mixed in an appropriate proportion before grinding, and gypsum and clinker can be mixed in an appropriate proportion before grinding. The specific surface area of ​​the ground titanium slag-based material is required to be greater than 420m 2 / kg; Gypsum and cement clinker are ground to a specific surface area greater than 420 m 2 / kg.

[0052] S2: After the ground materials are ful...

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Abstract

The invention discloses a titanium slag-based solid waste cementing material and a preparation method thereof. The titanium slag-based solid waste cementing material comprises the following raw materials by weight: 70-80% of a titanium slag-based material, 15-25% of gypsum, and 2.5-7.5% of cement clinker. The preparation method is simple, and the used materials are subjected to separate or mixed grinding according to different types of grindability differences, and then are mixed and stirred. In the raw materials, the titanium-containing slag-based material is used as a main component and is matched with the cement clinker and the gypsum to form the gel material, so that effective comprehensive utilization of a large amount of high-titanium-containing slag and industrial byproduct gypsum resources produced by iron and steel enterprises in Panzhihua, Leshan sand bay and the like in the southwest region can be realized, most of conventional engineering applications can be met, and the material can also be used in a construction environment with rich tunnel terrestrial heat.

Description

technical field [0001] The invention relates to a titanium slag-based solid waste cementitious material and a preparation method thereof, specifically relates to the preparation of a multi-component synergistic solid waste cementitious material for engineering by using titanium slag and a preparation method thereof, and belongs to the technical field of concrete materials. Background technique [0002] The main minerals of high titanium slag (hereinafter referred to as titanium slag) are titanium pyroxene, perovskite, bayite, spinel, etc., and the main components are CaO, SiO 2 、TiO 2 、Al 2 o 3 , MgO, whose melt is mainly composed of basic ions Ca 2+ ,Mg 2+ ,O 2- , Ti 2+ , Ti 3+ and complex anion SiO 4 2- ,AlO 4 - , TiO 3 2- Composition, where Ca 2+ The way in which the slag exists has a significant impact on the performance of the slag. Due to TiO 2 Is a very good crystal nucleation agent, Ca in titanium slag 2+ Mainly with TiO 3 2- Form perovskite, unl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/345C04B7/21C04B7/17C04B7/36
CPCC04B7/3453C04B7/21C04B7/17C04B7/36Y02P40/10
Inventor 喻庆华卢虹宇雷杰陈雪梅张凌志付亚敏郭川云
Owner JIAHUA SPECIAL CEMENT
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