CN112573853A - Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof - Google Patents
Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof Download PDFInfo
- Publication number
- CN112573853A CN112573853A CN202011558829.5A CN202011558829A CN112573853A CN 112573853 A CN112573853 A CN 112573853A CN 202011558829 A CN202011558829 A CN 202011558829A CN 112573853 A CN112573853 A CN 112573853A
- Authority
- CN
- China
- Prior art keywords
- solid
- waste
- titanium gypsum
- excitant
- fly ash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an activator for a full solid waste cementing material with titanium gypsum as a main material and a preparation method thereof.
Description
Technical Field
The invention relates to a titanium gypsum-based all-solid-waste cementing material excitant and a preparation method thereof, belonging to the field of building materials.
Background
In recent years, with the increase of the national ecological environment treatment and protection, waste-producing enterprises are increased to effectively utilize a large amount of solid waste. At present, the synergistic effect among various solid wastes is utilized to prepare the full-solid waste cementing material, which is an effective way for improving the utilization rate of the solid wastes and reducing the using amount of cement. The total solid waste cementing material is prepared by removing slag, steel slag, fly ash, coal gangueThe cement clinker-free cementing material is prepared by grinding bulk solid wastes such as sulfur, gypsum and the like to a certain fineness and preparing the materials according to different mass ratios. Mainly used for mine filling and paving roadbed, and the main component of the raw material is SiO2、Al2O3And CaO and the like. According to the hydration reaction conditions of cement clinker and the products of hydrated calcium carbonate gel, hexagonal platy calcium hydroxide and ettringite produced by the reaction, the hydration products of slag, steel slag, fly ash, coal gangue and other bulk raw materials are relatively less even a certain amount of desulfurized gypsum is added without the participation of the cement clinker, and the strength of the formed full-solid waste cementing material hardly meets the use requirement. The purpose of mass utilization cannot be achieved.
China is the first world in the titanium dioxide production, annual output accounts for more than 60% of the total world amount, and annual output reaches more than 240 million tons. At present, the titanium dioxide production in China mostly adopts a sulfuric acid method, a large amount of acidic wastewater is inevitably generated in the production process, and the treatment method is to add alkaline powder for neutralization, so that a large amount of industrial waste residue mainly comprising dihydrate gypsum, commonly called titanium gypsum, is generated. The titanium gypsum comprises CaSO as main ingredient4·2H2O content of about 60-80% due to high water content (generally more than 50%), high viscosity (Fe (OH) content)3Colloid), impurity characteristics such as many lead to a large amount of titanium gypsum can't carry out effective utilization, and most titanium gypsum adopts the mode of slag yard stockpiling to deal with. Not only occupies a large amount of land to influence production, but also pollutes the environment and destroys the water body.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the exciting agent of the all-solid-waste cementing material mainly made of titanium gypsum and the preparation method thereof.
An activator for a full-solid waste cementing material mainly comprising titanium gypsum comprises the following components in parts by weight:
50-75 parts of inorganic activating component, 1-3 parts of organic activating component, 1-3 parts of water reducing agent and 20-40 parts of fly ash;
the inorganic activation component is a mixture of titanium gypsum and carbide slag, and the titanium gypsum and the carbide slag are mixed according to the mass ratio of (7-9): (4-6) mixing;
the organic activating component is one of triethanolamine, triisopropanolamine, polyalcohol amine and polyalcohol.
Further, the water reducing agent provides one of a PC-I type polycarboxylate water reducing agent, an HSB-N type aliphatic water reducing agent and an HAS-B type amino water reducing agent for Subot.
Further, the fly ash is one of F-class fly ash or C-class fly ash.
The preparation method of the all-solid-waste cementing material excitant mainly based on titanium gypsum comprises the following steps:
1) weighing the raw materials according to the proportion, mixing and stirring the weighed fly ash, the water reducing agent and the organic activating component to obtain a mixture A;
2) mixing the mixture A obtained in the step 1) with the weighed titanium gypsum and carbide slag, and continuously stirring for 5-10min to obtain the cementing material excitant prepared by utilizing the total solid waste raw materials.
The application of the activator for the all-solid-waste cementing material mainly containing titanium gypsum in improving the strength of the all-solid-waste cementing material.
The titanium gypsum-based all-solid-waste gel material excitant is applied to the preparation of high-strength all-solid-waste gel material mortar and all-solid-waste gel material concrete.
Has the advantages that:
(1) the cement material excitant prepared in the application can effectively improve the 7-day compressive strength of the full-solid waste cement mortar by 3-5MPa and improve the 28-day strength by 4-8MPa under the condition that the common mixing amount is 8-10%. The compressive strength of the total solid waste cementing material concrete in 7 days is improved by 3-5MPa, and the compressive strength in 28 days is improved by 4-8MPa, so that the method has good economic and social benefits.
(2) The method can solve the problem that the strength of the all-solid-waste cementing material is low, not only can improve the practical application of the all-solid-waste cementing material, and make the all-solid-waste cementing material better applied, but also can consume a large amount of titanium gypsum, and make the titanium gypsum turned into wealth.
Detailed Description
In order to make the technical solutions in the present application better understood, the present invention is further described below with reference to examples, which are only a part of examples of the present application, but not all examples, and the present invention is not limited by the following examples.
Example 1
Firstly, adding 35 kg of fly ash into a stirrer, then adding 2.5 kg of water reducing agent and 2.5 kg of triethanolamine, starting stirring, stopping stirring after 5 minutes, adding 45 kg of titanium gypsum and 20 kg of carbide slag into the stirrer together, starting the stirrer again for stirring, stopping stirring after 15 minutes, pouring the mixture into granulation equipment for granulation treatment, and drying the treated mixture at 100 ℃ to ensure that the water content of the mixture is less than 2%.
Example 2
Firstly, 40 kg of fly ash is added into a stirrer, then 3 kg of water reducing agent and 2 kg of triisopropanolamine are added, stirring is started and stopped after 5 minutes of stirring, 35 kg of titanium gypsum and 25 kg of carbide slag are added into the stirrer together, the stirrer is started again for stirring, stirring is stopped after 15 minutes, the mixture is poured into granulation equipment for granulation treatment, the treated mixture is dried at 100 ℃, and the water content of the mixture is ensured to be less than 2%.
Example 3
Firstly, adding 35 kg of fly ash into a stirrer, then adding 2.5 kg of water reducing agent and 2.5 kg of polymeric polyol, starting stirring, stopping stirring after 5 minutes, adding 35 kg of titanium gypsum and 30 kg of carbide slag into the stirrer together, starting the stirrer again for stirring, stopping stirring after 15 minutes, pouring the mixture into granulation equipment for granulation treatment, and drying the treated mixture at 100 ℃ to ensure that the water content of the mixture is less than 2%.
Example 4
Adding 30 kg of fly ash into a stirrer, adding 2 kg of water reducing agent and 3 kg of triethanolamine, starting stirring, stopping stirring after stirring for 5 minutes, adding 40 kg of titanium gypsum and 25 kg of carbide slag into the stirrer together, starting the stirrer again for stirring, stopping stirring after 15 minutes, pouring the mixture into granulation equipment for granulation treatment, and drying the treated mixture at 100 ℃ to ensure that the water content of the mixture is less than 2%.
Test example 1.
A cement activator was prepared as described in example 4.
The doping weight percentage of the excitant in the all-solid-waste cementing material is 8-10%. Respectively weighing 10 kg of three parts of all-solid-waste cementing materials, respectively detecting a cement-sand strength comparison test of the all-solid-waste cementing materials and a concrete strength comparison test prepared from the all-solid-waste cementing materials according to GB/T17671-1999 method for testing cement-sand strength (ISO) method, GBT50080-2019 and GBT50081-2019 by adding 1 kg of the exciting agent of the invention to 10 kg of the all-solid-waste cementing materials without adding exciting agents, respectively, wherein the relevant test effects are shown in tables 1 and 2.
Table 1 summary of comparative tests for mortar strength of all solid waste gelled material
Note: the excitant is an internal mixing method, namely the excitant and the full solid waste cementing material are 450 g, wherein a comparison sample 1 is a market conventional alkaline excitant, and a comparison sample 2 is the excitant disclosed by the invention.
TABLE 2 summary of concrete comparative tests using all solid waste cementitious materials
Note: the standard is conventional C30 concrete, the excitant is doped according to the internal doping method, the comparison 2 is doped with a conventional alkaline excitant, and the comparison 3 is doped with the excitant of the invention.
As shown in tables 1 and 2, after the activator is used, the mortar strength of the all-solid-waste cementing material is improved by 5.3MPa in 7 days and 8.2MPa in 28 days, under the condition that the working performances of the prepared concrete are consistent, the compressive strength of the all-solid-waste cementing material is improved by 11.4MPa in 7 days and 11.9MPa in 28 days, the prepared concrete reaches the conventional C30 strength grade, and the performance of the all-solid-waste cementing material is superior to that of a common alkaline activator in the market, and the all-solid-waste cementing material produced by using the activator can completely replace the cementing material consisting of cement, mineral powder and fly ash from the aspects of the compressive strength and the working performances of the concrete.
Claims (6)
1. The all-solid-waste cementing material excitant mainly based on titanium gypsum is characterized by comprising the following components in parts by weight:
50-75 parts of inorganic activating component, 1-3 parts of organic activating component, 1-3 parts of water reducing agent and 20-40 parts of fly ash;
the inorganic activation component is a mixture of titanium gypsum and carbide slag, and the titanium gypsum and the carbide slag are mixed according to the mass ratio of (7-9): (4-6) mixing;
the organic activating component is one of triethanolamine, triisopropanolamine, polyalcohol amine and polyalcohol.
2. The excitant of claim 1, wherein the water reducer is one of PC-I type polycarboxylic acid water reducer, HSB-N type aliphatic water reducer, HAS-B type amino water reducer provided by sobot.
3. The excitant of claim 1, wherein the fly ash is one of class F fly ash or class C fly ash.
4. The method for preparing the titanium gypsum-based all-solid-waste cementing material excitant according to claim 1, characterized by comprising the following steps:
1) weighing the raw materials according to the proportion, mixing and stirring the weighed fly ash, the water reducing agent and the organic activating component to obtain a mixture A;
2) mixing the mixture A obtained in the step 1) with the weighed titanium gypsum and carbide slag, and continuously stirring for 5-10min to obtain the cementing material excitant prepared by utilizing the total solid waste raw materials.
5. The use of the titanium gypsum-based all-solid-waste cementitious material activator of claim 1 to increase the strength of all-solid-waste cementitious materials.
6. The use of the titanium gypsum-based all-solid-waste cementitious material activator of claim 1 in the preparation of high-strength all-solid-waste cementitious material mortar and all-solid-waste cementitious material concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558829.5A CN112573853A (en) | 2020-12-25 | 2020-12-25 | Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011558829.5A CN112573853A (en) | 2020-12-25 | 2020-12-25 | Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112573853A true CN112573853A (en) | 2021-03-30 |
Family
ID=75140490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011558829.5A Pending CN112573853A (en) | 2020-12-25 | 2020-12-25 | Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112573853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656237A (en) * | 2022-03-11 | 2022-06-24 | 山东大学 | Titanium gypsum-based roadbed filler and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064897A (en) * | 2016-05-26 | 2016-11-02 | 甘肃德龙生态建材有限公司 | A kind of ecological Binder Materials |
| CN106220234A (en) * | 2016-08-03 | 2016-12-14 | 安徽阜阳富龙建筑材料有限责任公司 | A kind of high strenght flyash carbide slag air-entrained concrete building block and processing method thereof |
| CN108314397A (en) * | 2018-02-13 | 2018-07-24 | 上海朗创实业发展有限公司 | A kind of titanium gypsum materials for wall and preparation method thereof |
| CN108358578A (en) * | 2018-03-01 | 2018-08-03 | 西南科技大学 | A kind of titanium extraction tailings-titanium gypsum base foam concrete and preparation method thereof |
| CN109608068A (en) * | 2018-12-19 | 2019-04-12 | 北京科技大学 | A kind of cementitious material, the preparation method of precast concrete and precast concrete |
| CN110304851A (en) * | 2019-07-19 | 2019-10-08 | 迁安威盛固废环保实业有限公司 | A kind of full solid waste cementitious material and preparation method thereof containing refining slag |
| CN110372041A (en) * | 2019-06-27 | 2019-10-25 | 西南科技大学 | A kind of method that titanium gypsum tailing prepares calcium ferrite |
| CN111312344A (en) * | 2020-02-12 | 2020-06-19 | 河北钢铁集团矿业有限公司 | Optimization method of full-solid waste cementing material and mixed aggregate filling slurry |
-
2020
- 2020-12-25 CN CN202011558829.5A patent/CN112573853A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064897A (en) * | 2016-05-26 | 2016-11-02 | 甘肃德龙生态建材有限公司 | A kind of ecological Binder Materials |
| CN106220234A (en) * | 2016-08-03 | 2016-12-14 | 安徽阜阳富龙建筑材料有限责任公司 | A kind of high strenght flyash carbide slag air-entrained concrete building block and processing method thereof |
| CN108314397A (en) * | 2018-02-13 | 2018-07-24 | 上海朗创实业发展有限公司 | A kind of titanium gypsum materials for wall and preparation method thereof |
| CN108358578A (en) * | 2018-03-01 | 2018-08-03 | 西南科技大学 | A kind of titanium extraction tailings-titanium gypsum base foam concrete and preparation method thereof |
| CN109608068A (en) * | 2018-12-19 | 2019-04-12 | 北京科技大学 | A kind of cementitious material, the preparation method of precast concrete and precast concrete |
| CN110372041A (en) * | 2019-06-27 | 2019-10-25 | 西南科技大学 | A kind of method that titanium gypsum tailing prepares calcium ferrite |
| CN110304851A (en) * | 2019-07-19 | 2019-10-08 | 迁安威盛固废环保实业有限公司 | A kind of full solid waste cementitious material and preparation method thereof containing refining slag |
| CN111312344A (en) * | 2020-02-12 | 2020-06-19 | 河北钢铁集团矿业有限公司 | Optimization method of full-solid waste cementing material and mixed aggregate filling slurry |
Non-Patent Citations (5)
| Title |
|---|
| 吴跃东等: "钢渣基胶结材料及应用前景", 《科学技术与工程》 * |
| 封培然等: "钛石膏应用于水泥缓凝剂的研究", 《新世纪水泥导报》 * |
| 李立涛等: "工业固废开发充填胶凝材料概述与应用展望", 《矿业研究与开发》 * |
| 李立涛等: "石膏-熟料质量比对矿渣充填胶凝材料性能的影响及应用", 《中南大学学报(自然科学版)》 * |
| 靳必强: "钛石膏的开发利用研究进展", 《矿产综合利用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656237A (en) * | 2022-03-11 | 2022-06-24 | 山东大学 | Titanium gypsum-based roadbed filler and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109336443B (en) | Concrete strong-effect agent and preparation process thereof | |
| CN109912243B (en) | Cement produced by utilizing industrial solid wastes | |
| CN111847921B (en) | Low clinker cement and preparation method and application thereof | |
| CN101885589A (en) | Compound sulfate cement | |
| WO2022229432A1 (en) | Binder composition comprising pozzolanic material and fine filler | |
| CN108178580A (en) | Mixing pile and rotary churning pile curing agent | |
| CN112125543A (en) | Composite gel material prepared from bulk solid wastes and preparation method thereof | |
| CN112110661A (en) | Preparation method of phosphogypsum slag-based cement | |
| CN111116154B (en) | Early-strength cement-based grouting material prepared from pre-hydrated fly ash and preparation method thereof | |
| CN114605121B (en) | Tungsten tailing autoclaved aerated concrete and preparation method thereof | |
| CN106698988B (en) | Carbonate rock modified phosphogypsum and preparation method thereof | |
| CN108002769A (en) | A kind of concrete prepared using desulfurizing byproduct | |
| CN110981233B (en) | Ferronickel slag masonry cement and preparation method thereof | |
| CN103482942B (en) | A kind of low alkalinity concrete and preparation method thereof | |
| CN112573853A (en) | Titanium gypsum-based full-solid waste cementing material excitant and preparation method thereof | |
| CN112341116A (en) | Desulfurized gypsum and super-sulfur cement concrete and preparation method thereof | |
| CN112174553A (en) | Composite activated low-calcium fly ash cement and preparation method thereof | |
| CN107382112A (en) | A kind of composite gelled material | |
| CN108585575B (en) | Cement retarder and preparation method and application thereof | |
| CN110818300A (en) | Manganese slag super-sulfate cement and preparation method thereof | |
| CN114702255B (en) | Super-sulfate cement prepared from low-activity acidic slag and preparation method thereof | |
| CN105198337A (en) | Production method of marine engineering cement block | |
| CN110981235B (en) | Hydraulic concrete composite cementing material and preparation method thereof | |
| CN114213045A (en) | Phosphogypsum-based cement based on industrial waste and preparation method thereof | |
| CN113800840A (en) | Low-temperature pipeline grouting material based on solid waste source high-activity powder material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |