High-content hybrid fiber concrete bulletproof and explosionproof brick and preparation method thereof
A technology of mixing fiber and concrete, which is applied in the field of building materials, can solve problems that have not been seen in small bulletproof and explosion-proof blocks
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[0020] Example 1:
[0021] The high-content hybrid fiber concrete bulletproof and explosion-proof brick of the present invention is composed of corrugated steel fibers with a length of 15 mm, a diameter of 0.6 mm and a tensile strength of 600 MPa to 700 MPa (selected corrugated steel fibers produced by Yixing Junwei Metal Fiber Co., Ltd. ), polypropylene fiber (selected polypropylene fiber produced by Yixing Junwei Metal Fiber Co., Ltd.), ordinary Portland cement (selected Luoyang Yellow River brand P.O52.5 ordinary Portland cement), water (selected drinking tap water) ), sand with a fineness modulus of 2.8 (natural medium sand produced in Luoyang Yihe Beach, washed with water, without soil), crushed stone with a particle size of 5mm to 10mm (choose a well-graded Luoyang Yihe Beach produced river pebbles) , washed with water, without soil), silica fume (the grade of SF96 silica fume produced by Xinding Mineral Products Processing Factory in Lingshou County, Hebei Province is s...
Example Embodiment
[0029] Example 2:
[0030] The high-content hybrid fiber concrete bulletproof and explosion-proof brick of the present invention is composed of corrugated steel fibers with a length of 15 mm, a diameter of 0.6 mm and a tensile strength of 600 MPa to 700 MPa, polypropylene fibers, ordinary Portland cement, water, fineness Sand with a modulus of 2.8, crushed stone with a particle size of 5mm to 10mm, silica fume, fly ash, and polycarboxylic acid-based high-performance water-reducing agent are composed of the following mass percentages:
[0031]Corrugated steel fiber 14.21%, polypropylene fiber 0.04%, cement 19.40%, water 5.60%, sand 17.50%, gravel 38.00%, silica fume 2.80%, fly ash 2.00%, superplasticizer 0.45%.
[0032] The polypropylene fiber is composed of three specifications of length 19mm, 12mm and 6mm, and the ratio of the polypropylene fibers of the three specifications is 5:3:2 by mass; its performance index is: density 0.91g / cm 3 , The diameter of the monofilament is ...
Example Embodiment
[0038] Example 3:
[0039] The high-content hybrid fiber concrete bulletproof and explosion-proof brick of the present invention is composed of corrugated steel fibers with a length of 15 mm, a diameter of 0.6 mm and a tensile strength of 600 MPa to 700 MPa, polypropylene fibers, ordinary Portland cement, water, fineness Sand with a modulus of 2.8, crushed stone with a particle size of 5mm to 10mm, silica fume, fly ash, and polycarboxylic acid-based high-performance water-reducing agent are composed of the following mass percentages:
[0040] Corrugated steel fiber 14.21%, polypropylene fiber 0.04%, cement 19.80%, water 5.40%, sand 17.00%, gravel 38.50%, silica fume 2.60%, fly ash 2.00%, superplasticizer 0.45%.
[0041] The polypropylene fiber is composed of three specifications of length 19mm, 12mm and 6mm, and the ratio of the polypropylene fibers of the three specifications is 5:3:2 by mass; its performance index is: density 0.91g / cm 3 , The diameter of the monofilament is...
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