4 compared with the blanket No.

With this organization of work, the masonry of the fireproofs Domna No. 1 was carried out in 62 days, Domns No. 2 — in 59 days, domain No. 3 and 4 — in 58 days, and when replacing the masonry of fireproof blanks No. 1, which failed due to improper operation , in 57 days. The cost of laying fireproofs Domna No. 4 compared with the blanket No. 3 was reduced by 11.4%, and when replacing the masonry of fireproof Domna No. 1 compared with the blanket No. 4 — by 10.1%.