High-fluidity cement concrete and preparation method thereof
A cement concrete, high fluidity technology, applied in the field of building materials, can solve the problems of general compressive strength, impermeability, frost resistance and other properties, and cannot be applied well, and achieves inhibition of alkali-aggregate reaction, excellent resistance to Freeze, high early strength effects
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[0058] Example 1
[0059] The high-fluidity cement concrete in this embodiment includes the following components by weight: 500 parts of sulfoaluminate cement; 300 parts of fine sand; 250 parts of medium and coarse sand; 100 parts of mineral powder; 15 parts of graphene oxide; hollow 75 parts of glass beads; 50 parts of gypsum; 8 parts of water reducing agent (carbonyl pyroaldehyde); 5 parts of air-entraining agent (rosin resin); 4 parts of retarder (methyl borate); 5 parts of VAE emulsion; sodium citrate 5 parts, 6 parts propylene glycol; 260 parts water; 0.6 parts polypropylene fiber;
[0060] Its preparation method is as follows:
[0061] (1) fine sand, medium and coarse sand, mineral powder, and 10 microns, hollow glass microspheres of 1 micron wall thickness, gypsum and graphene oxide are loaded into a mixer and stirred;
[0062] (2) filament polypropylene fibers with a length of 2 cm are put in, and dry mixed for 30 seconds;
[0063] (3) adding 60% water, adding compo...
Example Embodiment
[0070] Example 2
[0071] The high-fluidity cement concrete in this embodiment includes the following components by weight: 600 parts of sulfoaluminate cement; 400 parts of fine sand; 300 parts of medium and coarse sand; 120 parts of mineral powder; 25 parts of graphene oxide; hollow 85 parts of glass beads; 80 parts of gypsum; 10 parts of water reducing agent (carbonyl pyroaldehyde); 8 parts of air-entraining agent (sodium tetradecylbenzenesulfonate); 6 parts of retarder (methyl phosphate); VAE emulsion 7 parts; 8 parts sodium citrate, 10 parts propylene glycol; 320 parts water; 1.2 parts polypropylene fiber;
[0072] Its preparation method is as follows:
[0073] (1) fine sand, medium and coarse sand, mineral powder, and 100 microns, hollow glass microspheres of 2 microns wall thickness, gypsum and graphene oxide are loaded into a mixer and stirred;
[0074] (2) filament polypropylene fibers with a length of 3 centimeters are put in, and dry mixing is performed for 35 seco...
Example Embodiment
[0082] Example 3
[0083] The high-fluidity cement concrete in this embodiment includes the following components in parts by weight: 530 parts of sulfoaluminate cement; 320 parts of fine sand; 280 parts of medium and coarse sand; 100 parts of mineral powder; 18 parts of graphene oxide; hollow 78 parts of glass beads; 60 parts of gypsum; 9 parts of water reducing agent (carbonyl pyroaldehyde); 5 parts of air-entraining agent (saponin, 2.5 parts of protein); 4 parts of retarder (methyl phosphate); 6 parts of VAE emulsion ; 5 parts of sodium citrate, 6 parts of propylene glycol; 300 parts of water; 1.0 parts of polypropylene fiber;
[0084] Its preparation method is as follows:
[0085] (1) fine sand, medium and coarse sand, mineral powder, and 250 microns, hollow glass microspheres of 1 micron wall thickness, gypsum and graphene oxide are loaded into a mixer and stirred;
[0086] (2) filament polypropylene fiber with a length of 5 cm is put in, and dry mixing is performed for ...
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