Fiber reinforced concrete and preparation method thereof
A fiber-reinforced concrete technology, applied in the field of concrete, to achieve the effects of increasing compressive strength and flexural strength, excellent compressive strength, increasing crack resistance and compressive strength
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Example Embodiment
[0044]Example 1:
[0045]SeeFigure 1-9As shown, this embodiment is a fiber-reinforced concrete, including the following components by weight:
[0046]A fiber-reinforced concrete comprising the following components by weight:
[0047]Cement 50 parts, fly ash 30 parts, mineral powder 18 parts, water 30 parts, crushed stone 140 parts, river sand 120 parts, water reducing agent 1 part, carbon fiber 5 parts, brucite fiber 1 part, glass fiber 1.5 parts , 10 parts of epoxy resin, 5 parts of acrylic emulsion, 0.7 parts of dispersant, 1.8 parts of diatomaceous earth, 0.3 parts of rubber powder;
[0048]The dispersant is methyl cellulose; the water reducing agent is an aliphatic water reducing agent.
[0049]A method for preparing fiber reinforced concrete includes the following steps:
[0050]Step 1: Add the acrylic emulsion to the curing box 102 from the hopper 106 of the reinforced fiber production equipment, then add diatomaceous earth and rubber powder to the acrylic emulsion, start the stirring motor 105...
Example Embodiment
[0057]Example 2:
[0058]The difference between this embodiment and embodiment 1 lies in that: a fiber-reinforced concrete includes the following components by weight:
[0059]55 parts of cement, 35 parts of fly ash, 20 parts of mineral powder, 33 parts of water, 150 parts of gravel, 130 parts of river sand, 2 parts of water reducing agent, 7 parts of carbon fiber, 3 parts of brucite fiber, 2.3 parts of glass fiber , 13 parts of epoxy resin, 8 parts of acrylic emulsion, 1.0 part of dispersant, 2.2 parts of diatomaceous earth, 0.4 parts of rubber powder;
[0060]The dispersing agent is sodium lauryl sulfate; the water reducing agent is a naphthalene water reducing agent.
[0061]The performance of the fiber-reinforced concrete of Example 2 was tested. The test results: 7d compressive strength 34.3MPa, 14d compressive strength 48.6MPa, 28d compressive strength 63.7MPa; 7d flexural strength 7.01MPa, 28d flexural strength 11.11 MPa.
Example Embodiment
[0062]Example 3:
[0063]The difference between this embodiment and embodiment 1 lies in that: a fiber-reinforced concrete includes the following components by weight:
[0064]60 parts of cement, 40 parts of fly ash, 22 parts of mineral powder, 36 parts of water, 160 parts of gravel, 140 parts of river sand, 3 parts of water reducing agent, 10 parts of carbon fiber, 5 parts of brucite fiber, 3 parts of glass fiber , 25 parts of epoxy resin, 10 parts of acrylate emulsion, 1.4 parts of dispersant, 2.6 parts of diatomaceous earth, 0.5 parts of rubber powder;
[0065]The dispersant is sodium carboxymethyl cellulose; the water reducing agent is a polycarboxylic acid water reducing agent.
[0066]The performance of the fiber-reinforced concrete of Example 3 was tested. The test results: 7d compressive strength 35.6MPa, 14d compressive strength 49.3MPa, 28d compressive strength 65.1MPa; 7d flexural strength 7.16MPa, 28d flexural strength 11.28 MPa.
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