KWA Restoration Waterproofing sub grade of different road (2025-26 works) restoration areas in Vadavannur gp

OD23571/2026-2027:Subgrade Water proofing Providing and applying two coats of Terrasil and Zycobond solution prepared in water in the ratio of 1:1 :100 (Terrasil:Zycobond:water )on the prepared surface of subgrade for water proofing and preventing capillary rise,First spray is to be applies at the rate of 2.5-3.5 L/sqm and second spray at the same rate applied after 1-3 hours of applying first spray,using mechanical means and as per the directions of the departmental officers at the site .