Repairing material for bricks of carbonizing chamber in coke oven and repairing method

A repairing material obtained by compounding

• (a) 62-98 wt. % of mortar comprising SiO.sub.2 and Al.sub.2 O.sub.3 as main components,
• (b) 0.1-6 wt. % of a powder comprising 70-100 wt. % of at least one member selected from the group consisting of a Co compound, a Ni compound, and a Al compound and 0-30 wt. % of at least one member selected from the group consisting of a Ca compound, a Mg compound, a Zn compound, a Sr compound, a Ba compound, a Fe compound, a V compound, a Pb compound, a Cu compound, and a Ti compound, and
• (c) 2-31 wt. % of a liquid containing Si, at least one member selected from the group consisting of Na and K, B, and P at respective contents in the range of 1-30 wt. % as SiO.sub.2, 3-34 wt. % as at least one compound selected from the group consisting of Na.sub.2 O and K.sub.2 O, 1.5-12 wt. % as B.sub.2 O.sub.3, and 0.3-4 wt. % as P.sub.2 O.sub.5 and the balance of water, wherein
• the weight percentages of the mortar, the powder and the liquid are based on the total amount of the mortar, the powder and the liquid.