High-content grading fiber recycling aggregate concrete bulletproof explosion-proof brick and preparation method thereof
A fiber recycling and content-grading technology, which is applied in the field of high-content grading fiber recycling aggregate concrete bulletproof and explosion-proof bricks and its preparation, can solve the problem of not finding anti-riot and anti-terrorist buildings or structures
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Embodiment 1
[0018] The high-content graded fiber recovery aggregate concrete bulletproof and explosion-proof brick of the present invention is composed of end-hook steel fiber, polypropylene fiber, cement, water, fly ash, slag powder, silica fume, sand, gravel, high-efficiency water-reducing The agent is made according to the following mass percentages:
[0019] End hook steel fiber 16.30%, the length adopts three specifications of 20mm, 15mm and 12mm, the mass ratio of the three specifications is 5:3:2; the diameter of the end hook steel fiber with a length of 20mm is 0.25mm; the length of an end hook with a length of 15mm The diameter of the shaped steel fiber is 0.3mm; the diameter of the end-hook shaped steel fiber with a length of 12mm is 0.2mm; the material of the end-hook shaped steel fibers of the three specifications are all national standard cold-drawn steel wires, and the tensile strength is not less than 600MPa;
[0020] The polypropylene fiber is 0.04%, and the length adopts ...
Embodiment 2
[0030] The high-content graded fiber recovery aggregate concrete bulletproof and explosion-proof brick of the present invention is composed of end-hook steel fiber, polypropylene fiber, cement, water, fly ash, slag powder, silica fume, sand, gravel, high-efficiency water-reducing The agent is made according to the following mass percentages:
[0031] End hook steel fiber 16.30%, the length adopts three specifications of 20mm, 15mm and 12mm, the mass ratio of the three specifications is 5:3:2; the diameter of the end hook steel fiber with a length of 20mm is 0.25mm; the length of an end hook with a length of 15mm The diameter of the shaped steel fiber is 0.3mm; the diameter of the end-hook shaped steel fiber with a length of 12mm is 0.2mm; the material of the end-hook shaped steel fibers of the three specifications are all national standard cold-drawn steel wires, and the tensile strength is not less than 600MPa;
[0032] The polypropylene fiber is 0.04%, and the length adopts ...
Embodiment 3
[0042] The high-content graded fiber recovery aggregate concrete bulletproof and explosion-proof brick of the present invention is composed of end-hook steel fiber, polypropylene fiber, cement, water, fly ash, slag powder, silica fume, sand, gravel, high-efficiency water-reducing The agent is made according to the following mass percentages:
[0043] End hook steel fiber 16.30%, the length adopts three specifications of 20mm, 15mm and 12mm, the mass ratio of the three specifications is 5:3:2; the diameter of the end hook steel fiber with a length of 20mm is 0.25mm; the length of an end hook with a length of 15mm The diameter of the shaped steel fiber is 0.3mm; the diameter of the end-hook shaped steel fiber with a length of 12mm is 0.2mm; the material of the end-hook shaped steel fibers of the three specifications are all national standard cold-drawn steel wires, and the tensile strength is not less than 600MPa;
[0044] The polypropylene fiber is 0.04%, and the length adopts ...
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