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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Embodiment 1
[0021] The high-content mixed fiber concrete bulletproof and explosion-proof brick of the present invention consists 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 (the corrugated steel fibers produced by Yixing Junwei Metal Fiber Co., Ltd. ), polypropylene fiber (select polypropylene fiber produced by Yixing Junwei Metal Fiber Co., Ltd.), ordinary Portland cement (select Luoyang Huanghe brand P.O52.5 ordinary Portland cement), water (select drinking tap water ), sand with a fineness modulus of 2.8 (select natural medium sand from Yihe Beach in Luoyang, wash it with water, without soil), gravel with a particle size of 5mm-10mm (select river pebbles from Yihe Beach in Luoyang with good grading) , washed with water, without soil), silica fume (the brand name SF96 silica fume produced by Xinding Mineral Products Processing Factory in Lingshou County, Hebei Province is selected, which meets the requirements of "...
Embodiment 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, and fineness. Sand with a modulus of 2.8, gravel with a particle size of 5 mm to 10 mm, silica fume, fly ash, and polycarboxylate-based high-performance water reducer, composed according to 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] Described polypropylene fiber is made up of mixing three kinds of specifications of length 19mm, 12mm, 6mm, and the ratio of the polypropylene fiber mass portion of described three kinds of specifications is 5:3:2; Its performance index is: density 0.91g / cm 3 ,The single filament diam...
Embodiment 3
[0039] The high-content hybrid fiber concrete bulletproof and explosion-proof brick of the present invention consists 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, and fineness. Sand with a modulus of 2.8, gravel with a particle size of 5 mm to 10 mm, silica fume, fly ash, and polycarboxylate-based high-performance water reducer, composed according to 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] Described polypropylene fiber is made up of mixing three kinds of specifications of length 19mm, 12mm, 6mm, and the ratio of the polypropylene fiber mass portion of described three kinds of specifications is 5:3:2; Its performance index is: density 0.91g / cm 3 ,The single filament diamet...
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