Preparation of Surface. Immediately prior to placing aggregate base course, the previously constructed underlying surface course shall be cleaned of all foreign substances; if the surface of the underlying material has been damaged after placement or has inadequate compaction or other deviations from this contract specification requirements, such defects shall be repaired immediately prior to placement of this course.
Preparation of Surface. Immediately before applying the bituminous Material, the surface to be sealed shall be cleaned of all foreign and loose Material. T-811-2
Preparation of Surface. All putlog holes in brick work and junction between concrete and brick work shall be properly filled in advance. Joints in brick work shall be raked about 10mm and concrete surface hacked to provide grip to the plaster. Projecting burrs of mortar formed due to gaps at joints in shuttering shall be removed. The surface shall be scrubbed clean with wire brush/coil brush to remove dirt, dust etc. and the surface thoroughly washed with clean water to remove efflorescence, grease and oil etc. and shall be kept wet for a minimum of six hours before application of plaster.
Preparation of Surface. Immediately prior to applying the slurry, the Contractor shall clean the trail surface of all loose material, silt spots, vegetation, and any other matter, which may adversely affect the adherence of the slurry to the existing pavement. The Contractor shall be responsible for sweeping all parking lot sections to be slurried with a mechanical power broom prior to sealing. The Project Manager may require particularly dirty parking lot sections to be flushed with water. The Project Manager must approve all flushing operations. The Contractor shall be responsible for cleaning sidewalks soiled by flushing operations. The Contractor shall be responsible for removing all traffic striping, markings and raised pavement markers prior to the slurry seal operation. Also see Section “Parking Lot Stripe, Pavement Markings and Curb Painting” found elsewhere in this “Exhibit A, Scope and Services” for the removal of existing traffic striping. All materials removed become the property of the Contractor and shall be disposed of in accordance with the provision of 7-1.13, “Disposal of Material Outside the Highway Right of Way“, in the State Standard Specifications. The Contractor shall be responsible for locating, covering, removing, cleaning and protecting all utility covers, maintenance hole covers, water valve boxes, and any other utility covers. All manholes, utility, and survey monument covers encountered in the area to be resurfaced shall be carefully referenced out prior to the resurfacing operations by the Contractor. The methods of protection, referencing, locating, and cleaning shall be subject to approval by the Project Manager prior to any resurfacing. All protective coverings shall be removed before opening the parking lot to traffic. Placing The slurry seal shall be placed at a rate of approximately twelve (12) to fifteen (15) pounds per square yard. The exact rate shall be as determined by specific weight of aggregate, the surface demand of the pavement, and size of the largest particle size of the aggregate. The slurry seal shall not be placed when the existing pavement or air temperature is below 55 degrees Fahrenheit (55°F) and falling, or during unsuitable weather, but may be applied when both pavement and air temperature are above 45 degrees Fahrenheit (45°F) and rising. When slurry starts or finishes, a straight-line cut-off shall be obtained by laying down a strip of building paper or other approved material. The Contractor shall remove such paper and a...
Preparation of Surface. Before plastering, masonry joints are to be raked out. Mortar powder and dust shall be brushed out from joints, and the surface shall be washed with clean water and shall be watered well. Cement slurry shall be applied to R.C.C. surface before plastering. The minimum thickness or mortar to be applied shall be as specified. To ensure proper thickness, gauged patches shall be made at
Preparation of Surface. The joints of the brickwork shall be racked out to a depth of at least 15 mm. In case of R.C.C walls, the surface shall be hacked and roughened with wire brushes. The surface shall be cleaned thoroughly washed with water and kept wet.
Preparation of Surface. The surface shall be prepared as described earlier. APPLICATION OF PAINT: Tank Mastic, of a paint like consistency shall be applied on surface by brush or spray which dries rapidly with glossy black finish. It shall be applied strictly in accordance with instructions to get resultant film tough and elastic and to impart neither taste nor taint to contents of tank. The surface to be coated shall be clean and free from moisture. The solution shall be stirred well before applying and clean brushes shall be used. While applying, adequate ventilation shall be allowed. The first coat shall be thoroughly set before applying a second coat. When the final coat has dried out, the surfaces shall be flush down with clean cold water before putting into commission. Brushes shall be kept clean and free from oil and grease. They shall be immersed in clean cold water to keep them soft during intervals in application. Notes: Drying time and covering capacity vary according to nature of surfaces, ventilation etc.
Preparation of Surface. The surface shall be dry, free from dust, dirt oil and other foreign material.
Preparation of Surface. The surface upon which slurry seal is to be applied shall be thoroughly cleaned of all loose material, vegetation, silt spots, and other objectionable materials immediately preceding application by either brooming or the use of compressed air.
Preparation of Surface. The surface shall be thoroughly cleaned and dusted. All rust, dirt, scales, smoke and grease shall be thoroughly removed before painting is started. The prepared surface shall have received the approval of the Engineer-in-charge after inspection, before painting is commenced.
