Cement base material expanding agent and preparation method thereof
A technology of cement-based materials and expansion agents, which is applied in the field of building materials to achieve the effects of reducing pollution, simple and easy process, and reducing land occupation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0034] Example 1:
[0035] 100 parts of purified calcium carbide ash is used as raw meal, and its composition is: CaO 37.94%, MgO 12.33%, C34.17%, SiO 2 6.32%, Al 2 O 3 3.37%. Prepare cement-based material expansion agent according to the following steps:
[0036] The raw meal is dried at 105±5℃ until the weight loss value is not more than five ten thousandths. The dried raw meal is calcined at a high temperature under the following conditions: the calcination temperature is 810℃, the calcination time is 120min, and the holding time is 120min, the heating rate is 5℃ / min; after cooling, the calcined particles are obtained (the total content of MgO and CaO in the calcined particles is 76.15%, and the calcium-magnesium ratio is 3.07), and the specific surface area is 433m by grinding 2 / kg of cement-based material expansion agent A.
Example Embodiment
[0037] Example 2:
[0038] Each 100 parts by mass of raw meal is composed of 80 parts of calcium carbide purified ash and 20 parts of calcium and magnesium adjustment components. Among them, calcium carbide purified ash is composed of: CaO32.31%, MgO13.66%, C27.92%, SiO 2 5.28%, Al 2 O 3 4.11%; calcium and magnesium regulating components are 10 parts of magnesite tailings and 10 parts of dolomite tailings. The chemical composition of magnesite tailings is MgO43.66%, CaO1.71%, SiO 2 1.58%, Al 2 O 3 0.41%, Fe 2 O 3 0.47%, Loss (loss on ignition) 50.47%; dolomite tailings chemical composition is CaO31.72%, MgO21.28%, SiO 2 0.96%, Fe 2 O 3 2.18%, Loss 42.78%. The magnesite tailings and dolomite tailings ore are crushed and ground to a fineness of 80μm square hole sieve, and the sieve residue is less than 10%. Prepare cement-based material expansion agent according to the following steps:
[0039] Calcium-magnesium purification ash and calcium-magnesium regulating components are mixed u...
Example Embodiment
[0040] Example 3:
[0041] Each 100 parts by mass of raw meal is composed of 85 parts of calcium carbide purified ash and 15 parts of calcium and magnesium adjustment components. Among them, calcium carbide purified ash is composed of: CaO 37.94%, MgO 12.33%, C34.17%, SiO 2 6.32%, Al 2 O 3 3.37%; The calcium and magnesium regulating components are 10 parts of magnesite tailings and 5 parts of dolomite tailings. The chemical composition of magnesite tailings is MgO43.66%, CaO1.71%, SiO 2 1.58%, Al 2 O 3 0.41%, Fe 2 O 3 0.47%, Loss 50.47%; the chemical composition of dolomite tailings is CaO31.72%, MgO21.28%, SiO 2 0.96%, Fe 2 O 3 2.18%, Loss 42.78%. The magnesite tailings and dolomite tailings ore are crushed and ground to a fineness of 80μm square hole sieve, and the sieve residue is less than 10%. Prepare cement-based material expansion agent according to the following steps:
[0042] Calcium-magnesium purification ash and calcium-magnesium regulating components are mixed uniforml...
PUM
Property | Measurement | Unit |
---|---|---|
Specific surface area | aaaaa | aaaaa |
Specific surface area | aaaaa | aaaaa |
Specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap