C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
61/57, 117/7
C04B 28/26 (2006.01) C04B 41/50 (2006.01) E04C 5/01 (2006.01) E04G 23/06 (2006.01)
Patent
CA 1269569
ABSTRACT For the subsurface reconstruction of buildings reinforced with constructional steel that the damaged concrete is drilled into until behind the corroded reinforcement, the solution of a modified alkali silicate having a Me2O: SiO2 ratio of 1:2 to 1:3 being injected into the drilling under pressure and thereafter a cement-water sludge with alkali silicate solution or a mortar mixture being injected under pressure containing 2 to 6% weight relative to the amount of cement of a finely composed amorphous silicic acid with at least 90% by weight SiO2 or finely composed, precipitated, active silicates of magnesium, calcium, barium or aluminum with a BET surface of 50 to 200 m2/g and a d50% value below 20 µm.
547083
Jaklin Hans
Johnson Douglas S. Q.c.
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