Common use of Laying Clause in Contracts

Laying. Brick work shall be laid in English bond, unless otherwise specified. Half or cut bricks shall not be used except where necessary to complete the bond. Closures in such cases, shall be cut to the required size and used near the ends of the walls. In case of exposed brick work, only selected bricks of the specified class shall be used for the face work. A layer of mortar shall be spread on full width over a suitable length to the lower course. Each brick shall be properly bedded and set home (in position) by gently tapping with handle of trowel or wooden mallet. Its inside faces shall be buttered with mortar before the next brick is laid and pressed against it. On completion of a course all vertical joints shall be fully filled from the top with mortar. The walls of the structure shall be raised truly to plumb. All courses shall be laid truly horizontal and all vertical joints shall be truly vertical. All vertical joints in alternate courses shall come directly over the other. The thickness of the brick courses shall be kept uniform and for this purpose wooden straight edge with graduations indicating thickness of each course including joint shall be used. The height of window xxxxx, bottom of lintels and other such important points in the walls shall be marked on the graduated straight edge. The wall faces front and back, more than one brick thick shall be kept in proper plane. All the connected brick work shall be more than one meter below the rest of the work. In the opinion of the Engineer-In-Charge if it is not possible, the work shall be raked back according to bond (and not toothed at an angle not steeper than 45. In one day not more than one meter high brick work should be done. All the iron fixtures, outlets of water, hold fasts of doors and windows, which are required to be built into the walls shall be embedded in mortar or cement concrete as specified in their correct position, as directed by the Engineer-In-Charge, as the work proceeds. The flue of the chimney shall be plastered with mud, cowdung mortar ( 3 mud: 1 xxxxx) as the work proceeds. No extra payment shall be done for it.

Laying. Brick All pipe, fittings, valves, and fire hydrants shall be carefully lowered into the trench in a manner as to prevent damage to pipe materials and protective coatings and linings. Under no circumstances shall materials be dropped or dumped into the trench. The pipe and fittings shall be inspected for defects prior to installation. All lumps, blisters and excess coating shall be removed from the xxxx and spigot end of each pipe, and the outside of the spigot and the inside of the xxxx shall be wire brushed and wiped clean and dry and free from debris and lubricants before the pipe is placed in the trench. Every precaution shall be taken to prevent foreign material from entering pipe while it is being installed. After placing a length of pipe in the trench, the spigot end shall be centered in the xxxx and the pipe forced home and brought to correct line and grade. The pipe shall be secured in place with bedding material tamped under it. Precautions shall be taken to prevent dirt from entering the joint space. When pipe laying is not in progress, the open ends of pipe shall be sealed with a sanitary watertight plug or sanitary other means approved by the District. If water is in the trench when work resumes, the seal shall remain in place until the trench is pumped completely dry. The cutting of pipe for inserting valves, fittings or closure pieces shall be done in a neat and workmanlike manner without damage to the remaining pipe, coating or cement mortar lining so as to leave a smooth end at right angles to the axis of the pipe. Pipe shall be laid with xxxx ends facing in the direction of the laying, unless otherwise approved by the District. No pipe shall be laid in English bondwater, unless otherwise specified. Half or cut bricks shall not be used except where necessary to complete the bond. Closures when, in such cases, shall be cut to the required size and used near the ends of the walls. In case of exposed brick work, only selected bricks of the specified class shall be used for the face work. A layer of mortar shall be spread on full width over a suitable length to the lower course. Each brick shall be properly bedded and set home (in position) by gently tapping with handle of trowel or wooden mallet. Its inside faces shall be buttered with mortar before the next brick is laid and pressed against it. On completion of a course all vertical joints shall be fully filled from the top with mortar. The walls of the structure shall be raised truly to plumb. All courses shall be laid truly horizontal and all vertical joints shall be truly vertical. All vertical joints in alternate courses shall come directly over the other. The thickness of the brick courses shall be kept uniform and for this purpose wooden straight edge with graduations indicating thickness of each course including joint shall be used. The height of window xxxxx, bottom of lintels and other such important points in the walls shall be marked on the graduated straight edge. The wall faces front and back, more than one brick thick shall be kept in proper plane. All the connected brick work shall be more than one meter below the rest of the work. In the opinion of the Engineer-In-Charge if District, trench conditions are unsuitable. Wherever it is not possiblenecessary to deflect pipe from a straight line, the work amount of deflection allowed shall be raked back according to bond (not exceed one-half pipe manufacturers' recommendations for mechanical, restrained and not toothed at an angle not steeper than 45. In one day not more than one meter high brick work should be done. All the iron fixtures, outlets of water, hold fasts of doors and windows, which are required to be built into the walls shall be embedded in mortar or cement concrete as specified in their correct position, as directed by the Engineerpush-In-Charge, as the work proceeds. The flue of the chimney shall be plastered with mud, cowdung mortar ( 3 mud: 1 xxxxx) as the work proceeds. No extra payment shall be done for iton joints.

Laying. Brick work shall be laid in English bond, unless otherwise specified. Half or cut bricks The bituminous concrete shall not be used laid when the base is wet, when there are pools and during rainfall. The surface shall be kept thoroughly clean, free from dust and foreign matter, using mechanical broom or blown off by compressed air. The bituminous concrete binder course as well as the wearing course shall be placed in one layer, except where necessary to complete reshaping work is provided. The temperature of the bond. Closures in such cases, mix at delivery of the plant shall be cut to the required size and used near the ends of the walls. In case of exposed brick work, only selected bricks of the specified class shall be used for the face work. A layer of mortar approximately 140 C. The bituminous concrete shall be spread on full width over and tamped by a suitable length to the lower courseself-propelled paver operated by a fully- trained and experienced man. Each brick The paver shall be properly bedded and set home (in position) by gently tapping with handle capable of trowel or wooden malletlaying to a width of 4 meters. Its inside faces The screed unit shall be buttered adjusted before laying is started in order to produce a compacted layer with mortar before the next brick is laid and pressed against it. On completion of a course all vertical joints shall be fully filled from the top with mortar. The walls of the structure shall be raised truly to plumb. All courses shall be laid truly horizontal and all vertical joints shall be truly vertical. All vertical joints in alternate courses shall come directly over the other. The required thickness of the brick courses shall be kept uniform and for this purpose wooden straight edge with graduations indicating thickness of each course including joint shall be used. The height of window xxxxx, bottom of lintels and other such important points in the walls shall be marked as shown on the graduated straight edge. The wall faces front and back, more than one brick thick shall be kept in proper plane. All the connected brick work shall be more than one meter below the rest of the work. In the opinion of the Engineer-In-Charge if it is not possible, the work shall be raked back according to bond (and not toothed at an angle not steeper than 45. In one day not more than one meter high brick work should be done. All the iron fixtures, outlets of water, hold fasts of doors and windows, which are required to be built into the walls shall be embedded in mortar Drawings or cement concrete as specified in their correct position, as directed by the Engineer. During laying the screed unit shall be blocked; in other words adjustment of the thickness during laying using the so-In-Charge, as called floating action of the work proceedsscreed unit shall not be authorised. The flue mixed material shall be supplied continuously to the machine and laid as soon as possible after delivery. The speed of paver shall be adjusted to that of the chimney asphalt plant and hauling capacities so that the paving operation is maintained as continuously as possible during the work. The temperatures of mixes measured in the receiving xxxxxx of the asphalt paver shall not be lower than 130 C. Mixes which have a lower temperature shall be plastered with mud, cowdung mortar ( 3 mud: 1 xxxxx) as discarded. Transverse joints in the work proceeds. No extra payment wearing course shall be done for itoffset at least 500 mm from those in the base course. Longitudinal joints shall be offset at least 150 mm. At transverse joints between existing compacted asphalt and newly laid asphalt, the edge of the existing asphalt along the joint shall be neatly cut away in straight lines over a sufficient width to ensure that the full specified thickness of new asphalt is placed. The exposed edge in the existing work shall, if directed, be painted with hot bitumen or emulsion immediately in advance of placing the new work. When the asphalt layers are laid in half widths, the longitudinal joints between them shall, if directed, be treated similarly to the transverse joints. Cold joints shall be neatly cut away in straight lines except that they have been compacted to the required rate by means of a special equipment (lateral wheel). They shall be painted with hot bitumen or emulsion. The Contractor shall organise his work so that there are no exposed longitudinal joints left at the end of any day's work. Before opening to traffic, new layer shall be linked up with the existing one by means of a chamfered edge with a slope not exceeding 8%. Before carrying on the layer this chamfered edge shall be cut away.

Laying. Brick All the best-shaped uniformly colored bricks shall be picked out and used for face work without any extra payment to the contractor. All bricks work shall be constructed in English bond and shall follow the type bond junctions etc. Brickwork shall be laid in English bond, bond with mortar in proportion to 4:1 i.e. (4 sand:1 cement) unless otherwise specified. Half No brickwork shall be carried out more than one scaffolding height of 1.5 meter in any stage. Brickwork in foundation and superstructure not in contact with water shall be provided with 19 mm and 12-mm. thick plaster at inside and outside faces respectively. Cement and sand material ratio shall be 1:6 for structures not in contact with water and 1:4 with 20 mm. thick plaster cement punning in the waterside face and 12 mm. thick plastering prop at the other face shall be provided all courses unless other wise specified or cut bricks shall not be used except where necessary to complete ordered by the bond. Closures in such casesEngineer, shall be cut to the required size and used near the ends of the walls. In case of exposed brick work, only selected bricks of the specified class shall be used for the face work. A layer of mortar shall be spread on full width over a suitable length to the lower course. Each brick shall be properly bedded and set home (in position) by gently tapping with handle of trowel or wooden mallet. Its inside faces shall be buttered with mortar before the next brick is laid and pressed against it. On completion of a course all vertical joints shall be fully filled from the top with mortar. The walls of the structure shall be raised truly to plumb. All courses shall be laid truly horizontal and all vertical the walls shall be taken up truly plumb. Mortar joints shall never exceed 10 mm in thickness and this thickness shall be truly verticaluniform throughout. All vertical Vertical joints in alternate courses shall come directly over the otherone another. The thickness joints shall be racked out not less than 12mm deep when the mortar is green so as to provide proper key for the plaster or pointing to be done. Each face brick shall be set with both bed and vertical joints quite full of motor. No damaged or broken brick shall be used in any part of the brick courses work except such as may be cut to size for closing the course. Closers shall be kept uniform clean out to size an indicated in English bond and for this purpose wooden straight edge with graduations indicating thickness of each course including joint shall be usedsituated near the end of walls. The height of window xxxxx, bottom of lintels and other such important points in the walls masonry shall be marked on the graduated straight edge. The wall faces front carried up regularly and back, no step shall be allowed more than 60cm. where the masonry of one brick thick shall part has to be kept in proper plane. All the connected brick work shall be more than one meter below the rest of the work. In the opinion of the Engineer-In-Charge if it is not possibledelayed, the work shall must be raked back according to bond (and not toothed at an angle not steeper than 45exceeding 45º Angles and Junctions. In one day At all angles forming the junction of walls, the brick shall at each alternate course be carried into their respective walls so as to thoroughly unite the work with English bond. Care shall be taken that when a brick is left out to allow support for the scaffold pole on the wall face, such brick shall always be a header and that not more than one meter high brick work should be done. All the iron fixtures, outlets of water, hold fasts of doors and windows, which are required to be built into the walls header for each pole shall be embedded in mortar or cement concrete as specified in their correct position, as directed by left out. Scaffolding: Proper scaffolding shall be provided whenever necessary having two sets of vertical supports and shall be subject to the approval of the Engineer-In-Charge; who may order the contractor to alter or strengthen the scaffolding if he considers it necessary, as without thus becoming responsible either for the safety of the work proceedsor workmen or for any additional payment. The flue of the chimney Holes shall be plastered with mud, cowdung mortar ( 3 mud: 1 xxxxx) as made good by bricks to match the face work proceeds. No extra payment shall be done for itwhen scaffolding is removed.

Laying. All the masonry work shall be carried out to specified dimension, lines and levels indicated on the drawings or as directed by the Engineer-In-Charge and a good bond shall be provided throughout the work both longitudinally and transversely. Double scaffolding of adequate strength shall be provided for all types of loads likely to come on them during construction. No holes allowed in masonry for scaffolding. During rains and frosty weather, the work shall be carefully covered so as to prevent any mortar being washed away. Any anchors, wall plugs, accessories, flashings and other items required to be built in with masonry shall be provided in their correct position as the masonry work progresses. Before new work is started, all loose mortar shall be removed and the exposed joints shall be thoroughly cleaned before laying new work. Brick work Work Proper Every brick shall be thoroughly soaked in water before using in work. Before starting the brick masonry the concrete surfaces e.g. plinth beams, columns, slabs, chajjas, lofts etc. shall be thoroughly hacked and washed to remove all mud, dirt, loose particles etc. and a thin coat of cement slurry shall be applied over concrete surfaces when fresh masonry is to be started on or against old masonry, the surface of the old masonry shall be thoroughly cleaned and washed to remove all xxxx deposits loose mortar mud and dirt etc. Brickwork shall be laid in English bond, Bond with frog upwards unless otherwise specified. Half or cut bricks shall not be used except where necessary to complete the bond. Closures in such casesIn exposed brickwork, shall be cut to the required size and used near the ends of the walls. In case of exposed brick work, only selected bricks of the specified class shall be used for the face work. A layer of mortar shall be spread on full width over a suitable length to the lower course. Each No half or quarter brick shall be properly bedded and set home (in position) by gently tapping with handle of trowel or wooden malletused except as closures. Its inside faces shall be buttered with mortar before the next brick is laid and pressed against it. On completion of a course all vertical joints shall be fully filled from the top with mortar. The walls of the structure Nor more than ten courses shall be raised truly to plumb. All courses in a day and no part of the work shall be laid truly horizontal and all vertical joints shall be truly vertical. All vertical joints in alternate courses shall come directly over the otherraised more than 1 m. above another at any time. The thickness size of the brick courses shall be kept uniform and for this purpose wooden straight edge with graduations indicating thickness of 22.5 x 11.5 x 7.5 cm. unless otherwise specified; but tolerance upto ± 3mm. in each course including joint direction shall be permitted, However, bricks conforming in size to IS 1077 could be used. The height of window xxxxx, bottom of lintels and other such important points in the walls Bricks shall be marked on the graduated straight edgeprovided with frogs. The wall faces front and back, more than one brick thick Only full size bricks shall be kept in proper planeused for masonry work. All the connected brick work Brick bats shall be more than one meter below the rest of the work. In the opinion used only with permission of the Engineer-In-Charge if it is not possible, the work to make up required wall length or for bonding. Sample bricks shall be raked back according submitted to bond (the Engineer-In-Charge for approval and not toothed at an angle not steeper than 45brick supplied shall confirm to approved samples. In one day not more than one meter high brick work should be done. All the iron fixtures, outlets of water, hold fasts of doors and windows, which are required to be built into the walls shall be embedded in mortar or cement concrete as specified in their correct position, as directed If demanded by the Engineer-In-Charge, brick sample shall be tested as per IS 3495 by the Contractor at no extra cost to Employer. Brick rejected by Engineer-In-Charge shall be removed from the site of works within 24 hours. Each brick shall be set with both bed and vertical joints filled with mortar as per IS 2250. Joints shall not be less than 6 mm. and not more than 10 mm. in thickness and are to be full of mortar, close, well finished and neatly struck. All joints shall be adjusted to their final position in the wall while the mortar is still soft and plastic. All joints shall be raked out by raking tools when mortar is still green to a depth of 12 mm. to ensure good key to plaster or pointing. Where plastering or pointing is not required to be done, the joints shall be uniform in thickness, struck flush and finished at the time of laying. The face of brick work shall be cleaned daily and all mortar droppings removed. The surface of each course shall be thoroughly cleaned of all dirt before another course is laid on top. If the mortar in the lower course has begun to set, the joints shall be raked out to a depth of 12 mm. before another course is laid. Miscellaneous inserts in masonry e.g. sleeves, wall ties, anchors, conduits, structural steel, steel lintels etc. shall be installed by the Contractor. Openings etc. shall be provided as shown on the drawings. Chases, pockets etc. shall be provided as shown on the drawing to receive windows, louvers, doorframes, circular openings for exhaust fans etc. Curing shall constantly keep the brick masonry moist on all faces for a minimum period of seven days. Brickwork done during the day shall be suitably marked indicating the date on which the work proceeds. The flue of the chimney shall be plastered with mud, cowdung mortar ( 3 mud: 1 xxxxx) is done so as the work proceeds. No extra payment shall be done for itto keep a watch on curing period.