A kind of highly waterproof and corrosion-resistant concrete and its preparation method
A technology for corrosion-resistant concrete and cement, applied in the field of inorganic cementitious materials, can solve the problems of poor seawater erosion resistance and poor durability.
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Embodiment 1
[0031] In parts by weight, take 10 parts of graphene oxide, 10 parts of sepiolite, 8 parts of shell powder, 3 parts of water-soluble silicate, 20 parts of 42.5# ordinary Portland cement, and 1% of the cement mass Silica fiber; the graphene oxide edge is grafted with octadecylamine, and the grafting rate is 75%; in the sepiolite molecular skeleton, some magnesium ions are replaced by hydrogen ions, and the substitution rate is 90%; The nano-silica fiber is a short fiber with an aspect ratio of 3:1; the water-soluble silicate includes sodium silicate, potassium silicate and lithium silicate;
[0032] First mix graphene oxide, sepiolite, shell powder, water-soluble silicate and cement into the ball mill tank, and add zirconia ball mill beads according to the mass ratio of ball to material at 10:1, and the rotation speed is 350r / min. Under the condition of the revolution speed of 300r / min, after ball milling and mixing for 4 hours, the ball mill was obtained, and the ball mill and...
Embodiment 2
[0034] In parts by weight, 15 parts of graphene oxide, 15 parts of sepiolite, 9 parts of shell powder, 4 parts of water-soluble silicate, 40 parts of 42.5# ordinary Portland cement, and nano Silica fiber; the graphene oxide edge is grafted with octadecylamine, and the grafting rate is 80%; in the sepiolite molecular skeleton, some magnesium ions are replaced by hydrogen ions, and the substitution rate is 92%; The nano-silica fiber is a short fiber with an aspect ratio of 5:1; the water-soluble silicate includes sodium silicate and lithium silicate;
[0035] First mix graphene oxide, sepiolite, shell powder, water-soluble silicate and cement into the ball mill tank, and add zirconia ball mill beads according to the ball-to-material mass ratio of 20:1, and the rotation speed is 400r / min. Under the condition of the revolution speed of 400r / min, after ball milling and mixing for 5 hours, the ball mill was obtained, and the ball mill and nano-silica fibers were transferred to the m...
Embodiment 3
[0037]In parts by weight, 20 parts of graphene oxide, 20 parts of sepiolite, 10 parts of shell powder, 5 parts of water-soluble silicate, 60 parts of 42.5# ordinary Portland cement, and 10% of cement quality nano Silica fiber; the edge of the graphene oxide is grafted with octadecylamine, and the grafting rate is 90%; part of the magnesium ions in the molecular skeleton of the sepiolite is replaced by hydrogen ions, and the substitution rate is 98%; The nano-silica fiber is a short fiber with an aspect ratio of 10:1; the water-soluble silicate includes sodium silicate, potassium silicate and lithium silicate;
[0038] First mix graphene oxide, sepiolite, shell powder, water-soluble silicate and cement into the ball mill tank, and add zirconia ball mill beads according to the mass ratio of ball to material at 30:1, and the rotation speed is 450r / min. Under the condition of the revolution speed of 500r / min, after ball milling and mixing for 6 hours, the ball abrasive was obtaine...
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