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Ferro-aluminate phase marine gel material and preparation method thereof

A ferroaluminate and gel material technology, which is applied in cement production, etc., can solve the problems of impermeability, poor erosion resistance, and unsatisfactory performance, etc., and achieve the effects of anti-seawater erosion, low price, and simple preparation process

Active Publication Date: 2019-11-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, traditional Portland cement is mainly used in port, seawall, and coastal protection projects in my country. This type of cement has poor impermeability and erosion resistance, and its performance cannot fully meet the special requirements of marine engineering. Therefore, there is an urgent need for a A new type of high-performance marine cementitious material with high seawater corrosion resistance, erosion resistance and certain strength

Method used

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  • Ferro-aluminate phase marine gel material and preparation method thereof

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Effect test

Embodiment 1

[0039] The iron-aluminum series highly active materials, iron tailings, slag and desulfurized gypsum are dried until the moisture content is not greater than 5%. Crush the iron-aluminum-based high-active material, iron tailings and slag, and mix them with desulfurized gypsum. In terms of solid mass, the iron-aluminum-based high-active material is 45g, iron tailings is 25g, slag is 25g and desulfurization gypsum is 5g , the formulated matrix material should meet the standard of less than 10% of the sieve residue of 0.10mm, and the chemical composition percentage of the iron-aluminum series high-activity material is SiO 2 5%, Al 2 o 3 30%, CaO 30%, SO 3 5%, Fe 2 o 3 30%. Take the above matrix material, add 1g of A880 quick-setting agent, 0.5g of TWPZ-1 expansion agent, and 0.5g of NNO dispersant in the mass of the matrix material, and mix thoroughly to prepare the ferroaluminate phase marine cementitious material.

Embodiment 2

[0041] The iron-aluminum series highly active materials, iron tailings, slag and desulfurized gypsum are dried until the moisture content is not greater than 5%. The iron-aluminum-based high-active material, iron tailings and slag are crushed, and mixed with desulfurized gypsum. In terms of material mass, the iron-aluminum-based high-active material is 50g, and its chemical composition percentage is SiO 2 4%, Al 2 o 3 29%, CaO 31%, SO 3 5%, Fe 2 o 3 31%, 20g of iron tailings, 20g of slag and 10g of desulfurized gypsum, and the prepared matrix material should meet the standard of less than 10% of sieve over 0.10mm. Take the above matrix material, add 0.7g of A880 quick-setting agent, 0.1g of TWPZ-1 expansion agent, and 0.8 of NNO dispersant, and mix thoroughly to prepare the ferrite-aluminate phase marine cementitious material.

[0042] The properties of the ferro-aluminate phase marine cementitious material prepared in Example 1-2 are shown in Table 1:

[0043]

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Abstract

The invention discloses a ferroaluminate phase ocean engineering gel material and a preparation method thereof. The material is prepared from a base material, an accelerator, a dispersant and an expanding agent. The base material comprises, in parts by weight, 10-50 parts of an iron-aluminum series high-activity material, 10-30 parts of iron tailings, 20-35 parts of slag and 0-10 parts of desulfurization gypsum, wherein the desulfurization gypsum is not 0; the main chemical composition of the iron-aluminum series high-activity material is SiO2, Al2O3, CaO, SO3 and Fe2O3. The material takes theiron-aluminum series high-activity material as the main material and multiple types of bulk solid wastes as auxiliary materials, the production cost of the ocean engineering gel material is reduced while a large quantity of stacked solid wastes are consumed, and large-scale utilization of the ocean engineering gel material is promoted to a certain extent.

Description

technical field [0001] The invention relates to a ferroaluminate phase marine gel material and a preparation method thereof. Background technique [0002] With the continuous development of modern industrial production in our country, industries such as thermal power generation, metal smelting, and resource mining have produced a large amount of industrial waste during the production process. The stockpiling of various solid wastes is increasing day by day, not only occupying a large amount of arable land and farmland, but also causing secondary pollution to the surrounding air, water quality and soil. However, various solid wastes are rich in CaO, Fe 2 o 3 , SiO 2 、Al 2 o 3 The cementitious components are similar to those of traditional cement minerals. Therefore, the utilization of solid waste resources has become a research hotspot in recent years. [0003] The 21st century is a golden age for exploring the development of marine resources. As the country pays more a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/14C04B11/28C04B11/26
CPCC04B7/14C04B11/264C04B11/28Y02P40/10
Inventor 李术才齐延海李召峰张健林春金
Owner SHANDONG UNIV
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