Preparation method of mineral admixture slurry for high-performance prefabricated component
A prefabricated component, high-performance technology, applied in the field of building materials, can solve the problems of large fluctuations in carbon content, fineness and chemical composition, unstable quality of wet-drained fly ash, low utilization rate of wet-drained ash, etc., to achieve Significant social and economic benefits, reduced energy consumption, and improved strength
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0029] 1) Take the wet-discharged fly ash with a mass moisture content of 25-35%, and set aside after aging for 48 hours;
[0030] The mass quality of the wet-discharged fly ash is: free calcium oxide content≤2.5%, sulfur trioxide content≤3%, carbon content≤12%; Blaine specific surface area is 350-400m 2 / Kg;
[0031] 2) Take Na by mass percentage 2 CO 3 40% and 60% of high-efficiency naphthalene-based water reducer are mixed to prepare modifiers;
[0032] 3) Mineral blending slurry, according to the mass fraction of each component, the solid content of the wet fly ash obtained in step 1) is 65, the solid content of quartz sand tailings is 34, the modifier obtained in step 2) is 1.0, and the water is 80 Mixing and wet grinding until the specific surface area is above 1500㎡ / kg, and the average particle diameter is less than 1μm to obtain mineral blended slurry;
[0033] The quartz sand tailings are waste residues in quartz ore mining, tailings and tailings in the processing...
Embodiment 2
[0036] Embodiment 2, with embodiment 1, difference is,
[0037] 2) Take 30% of triethanolamine and 70% of polycarboxylate water reducer to prepare modifier according to mass percentage;
[0038] 3) Mineral blending slurry, according to the mass fraction of each component, take step 1) obtained wet discharge fly ash solid content 70, quartz sand tailings solid content 28, step 2) obtained modifier 2.0, water 80 mix.
[0039] Produce the AB type prestressed high-strength concrete pipe pile mechanical performance detection result of outer diameter 400mm wall thickness 90mm with the mineral admixture slurry prepared in this embodiment as follows: detect cracking bending moment 82KN m, detection limit bending moment 138KN m, standard The cracking bending moment is 63KN·m, and the standard ultimate bending moment is 104KN·m.
Embodiment 3
[0040] Embodiment 3, with embodiment 1, the difference is,
[0041] 2) Take 33.3% of triethanolamine and 66.7% of polycarboxylate water reducer to prepare modifier according to mass percentage;
[0042]3) Mineral blending slurry, according to the mass fraction of each component, the solid content of the wet fly ash obtained in step 1) is 70, the solid content of quartz sand tailings is 27, the modifier obtained in step 2) is 3.0, and the water is 90 mix.
[0043] The mineral admixture slurry prepared by the present embodiment is used to produce the AB type prestressed high-strength concrete pipe pile with an outer diameter of 400 mm and a wall thickness of 90 mm. The mechanical performance test results are as follows: detection cracking bending moment 87KN m, detection limit bending moment 137KN m, standard The cracking bending moment is 63KN·m, and the standard ultimate bending moment is 104KN·m.
PUM
Property | Measurement | Unit |
---|---|---|
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com