Common use of Dressing Clause in Contracts

Dressing. The stone shall be merely knocked off at the sharp and irregular cornes, edges and wherever necessary for lifting well into the work. No bushaing exceeding 20mm shall be allowed on the face. The quoins shall be neatly dressed to form the required angle (i.e. at jambs and corners). (i) Bond Stone : The stones shall not be less than 400 ▇▇.▇▇ in cross sectional area at any point and shall run right through the for wall upto 60 cms and in case the wall thickness exceeds 60 cms a line of two or more bond stone shall be laid from face to back overlapping each other by 15cms minimum, the length of such bond stones shall be at least 50cms. (ii) Face stones : At least 25% stone shall be headers tailing into the work at least 2/3rd the thickness of wall or full thickness of wall for walls 30 cms and less in thickness. Such stones shall be not be less than 200 sq.cms in cross section. (iii) Hearting and backing : Where hearting can accommodate a fair proportion of the stones used in the hearting shall be of large size 25% of them shall exceed 0.01 cum. in content. (iv) Quoins : The quoins shall be at least 30 cms in average length and 0.01cum in content and laid alternately as headers and stretchers, out of then stone at course not exceeding 1 meter centre to centre , shall be provide with a minimum length of 50cms and cross-sections 200 ▇▇.▇▇ (Size of bond specified above) on each exposed face. (v) Jamb Stones : The jambs shall be made with stones specified for quoins except that the stone which were required to be provided at 1 metre centre to centre on both the exposed faces shall here be provided only on the jamb and the length shall be equal to the thickness of the wall for wall upto 60cms and a line of headers shall be provided for walls thicker than 60 cms as specified for bond.