Civil Projects

  Main Break Water(MBW) access road occurs several cracks on the asphalt binder course. The road cracks are monitored and investigated with specialist from RDA Research & Development. This report describes the reason and remedial method of the cracks based on the investigation and consultation. MBW access road structure consists of fallowing cross section and the core samples have been taken on the cracks. According to core sample data, can be observed that the crack was started from CBM and reflected to the binder course surface. CRACK INVESTIGATION The crack survey carried out for the entire road and investigation detail summarized as an attached sheet. Core samples were taken from the jointly selected locations with the engineer. MBW access road cracks were categorized into two types based on crack surface appearance. Transverse cracks Longitudinal cracks ...

  The major materials used for the construction of bridge, but are not limited to the following. Cement Sand Aggregate Water Reinforcements Fly wood sheets Embankment Filling Materials (Type 1 or Type 2) Sub-base Materials Rock Fill Gunny Bags Concrete Guard rails Guard posts Kerbs Paving slabs Equipment The major equipment used for the construction of the Bridge includes, but are not limited to the following. JCB, and/or Backhoes, and/or Excavator Dump Trucks Tractor & Trailer 1.2 tone vibratory rollers Rammers / Plate Compactors Poker Vibrators Truck mixtures Sampling & Testing Equipment Total Station & Auto Level Truck Crane Generator Compressor Other minor tools Safety Management and Control Safety precaution will be taken complying with the Road Work Traffic Control Manual. Method and Procedures After demolition and removing t...

Method of Plastering. Internal plastering on surfaces of brick and concrete. External wall plastering. Soffit plastering / Soffit finishing with cement based easy plaster material and wall putty. Improving joint of brick walls & structural concrete joints. Internal Plastering on surfaces of Brick and Concrete. Surface where plastering is to be done will be cleaned. Level pegs on walls will be fixed with reference to the off lines to brick walls set out in floors. (Using centre plumb bob and nylon thread). All the brick walls will be watered before pasting mortar on walls. First coat mortar filling (1:4 Cement and Sand) upto 15 mm will be applied on surfaces where required mortar thickness exceed 25mm. Walls and columns will be plastered 1:4 Cement and Sand to achieve semi rough finished surface. Vertical joint of structural columns / walls & brick walls will be treated by fixing 200mm width chicken mesh with wire nails / concre...

EXECUTION OF WORK Demarcate the excavation line with working space. Shall obtain the written approval from employee to start excavation work. Shall thoroughly explain necessary details to excavator operators to get a smooth Work done and avoid less or over excavation. engineer shall continuously monitor the levels while going on the excavation   SEQUENCE OF WORK Removal of surface soil and debris are carried out and clean the site. Considering the area and volume to be excavated and the different levels of excavations in ground Reservoir excavation work shall carried out in two or three places simultaneously. In the Ground Reservoir , excavation work shall reach up to the required level in one time. In the Back Wash Recovery Tank excavation work shall reach up to about 3.0m level in First phase and in 2 nd phase shall reach up to final required level.   Transporting soil Excavated soil will be transported out from the site and soil...

Method Statement This method statement will be established for the construction of brick masonry walls and the related work which are to be completed with brick walls. Brick masonry walls in the scope of work are 225mm thick & 112.5mm thick brick walls. These brick walls will be built with 1:5 cement sand mixture. Description. Brick walls will be built for internal partition & as well as perimeter walls of the building. All brick walls will be constructed by maintaining the verticality of walls and the location of the wall as per the construction issued Architectural drawings / approved shop drawings for brick walls in each floor. While constructing the brick walls, opening for the doors, windows & services will be provided according to the dimensions of doors, windows & the dimensions for openings shown in the service drawings by allowing cement / sand plaster thickness of 15mm in each side of the opening. Method of Brick Masonry. Method of brick will be...

  Materials The major materials used for the construction of bridge deck, but are not limited to the following. Concrete (Gr   30/20) Reinforcement Form work & falls work Equipment The major equipment used for the construction of the Bridge deck includes, but are not limited to the following. Truck mixtures Sampling & Testing Equipment Total Station & Auto Level Truck Crane/ Mobile crane Generator Compressor Other minor tools Porker vibrator Safety Management and Control   Safety precaution will be taken complying with the Road Work Traffic & Safety Manual. Every precaution will be taken to avoid any accidents & damages to adjoining properties, workers, and road users. Deck slab concreting will be poured by directly from tuck mixer by standing on the existing bridge & will maintain the required thickness. Existing Bridge will be closed time to time with help of local Police. All workers will be advi...

Materials The major materials used for rectification of defective wearing course, but are not limited to the following. CRS 1 Asphalt Equipment The major equipment used for rectification of defective wearing course, but are not limited to the following. Asphalt cutter Double drum roller PTR Lorry        Safety Management and Control Safety precaution will be taken complying with the Road Work Traffic Control Manual. Every precautions will be taken avoid any damages to adjoining properties.  Method and Procedures Following procedure will be used to rectify the damaged wearing course. The locations of the defective places will be observed and find out jointly with Engineer. Then the cut wearing course to a width of 500 mm using Asphalt cutter and remove existing wearing course. The cutting to be done continually to include all small patches ( cracks ) as to suit site condition. The tack coat will be ...

Materials The major materials used for slurry sealing work, but are not limited to the following. Aggregate Filler ( Portland cement ) Emulsion ( CSS 1) Water Equipment The major equipment used for the slurry sealing, but are not limited to the following. Plate Compactors Tractor & Trailer Other minor tools Man power Man power used for the access construction, but are not limited to the following. Technical Officer Skilled Labours Unskilled Labours Safety Management and Control Safety precaution will be taken complying with the Road Work Traffic Control Manual. Every precautions will be taken avoid any damages to adjoining properties.   Method and Procedures Following procedure will be used to slurry sealing on the embankment. See flow chart at Appendix A. All loose material, mud spots, vegetation and other objectionable material will be removed immediately prior to applying the slurry. After the preparation of existing surface, a ...

Aggregate Base Coarse Materials Aggregate Base Course. (0-40mm) Water Equipment The major equipment used for the laying of ABC works and compaction, but are not limited to the following. JCB, and/or Backhoes Bob Cat Dump Trucks Rollers Motor Grader Rammers / Plate Compactors Water Bowser Sampling & Testing Equipment Auto Level, Straight Edge & Wedge Other minor tools Man Power Man Power used for the Aggregate Base course works includes, but are not limited to the following. Site Engineer Technical Officers Supervisors Labours Safety & Traffic controllers Safety Management and Traffic Control All workers will be advised to wear helmets, boots, and gloves while working. There will be a stand by vehicle near site always if needed in a case of accident. The safety officer inspects several times to inspect safety matters. Method...

Materials The major materials used for slurry sealing work, but are not limited to the following. Aggregate Filler ( Portland cement ) Emulsion ( CSS 1) Water   Equipment The major equipment used for the slurry sealing, but are not limited to the following. Plate Compactors Tractor & Trailer Other minor tools Man power Man power used for the access construction, but are not limited to the following. Technical Officer Skilled Labours Unskilled Labours Safety Management and Control Safety precaution will be taken complying with the Road Work Traffic Control Manual. Every precautions will be taken avoid any damages to adjoining properties.   Method and Procedures All loose material, mud spots, vegetation and other objectionable material will be removed immediately prior to applying the slurry. After the preparation of existing surface, a tack coat of diluted emulsion using CSS-1 with water in the ratio of 1...

  Materials The major materials used for tack coat & asphalt work, but are not limited to the following. Asphalt Concrete (Binder Course ) CRS 1 Equipment The major equipment used for tack coat & asphalt work, but are not limited to the following. Asphalt Pavers – 5.5 m width Pneumatic Tyred Rollers – 10 Tone Tandem Roller – 8 Tone 2.5 T roller Plate Compactor Tractor & Trailer Asphalt Cutter & Breaker Tractor with Broom – 2 m Wide Dump Trucks – 3.5 Cube Sampling & Testing Equipment Sprit Level Compressor – 125 cfm Tack coat sprayer Straight Edges Water bowser Other minor tools Man Power Man power used for tack coat & asphalt work, but are not limited to the following. Civil Forman (Asphalt) Safety Officer ...

Introduction Road surface marking is any kind of device or material that is used on a road surface in order to convey official information. They can also be applied in other facilities used by vehicles to mark parking spaces or designate areas for other uses. Materials 1.Thermoplastic road marking materials 2.Glass beads   Equipment 1.Road Marking Machine 2.Gas 3.Rope 4.Chisel. 5.Cleaning equipment 6.Small Tools   Method 1.Center line will be set out and get approvals about the Center line before commencement of line marking. 2. Road surface shall be cleaned manually using wire brush and wash the surface where necessary. 3. As per the approved road marking design the road marking lines & symbols will be set out means of white chalk and approval will taken by Engineer. 4. The thermoplastic material is heated in the range of temperature around 170 ~ 200 0C and maintain in the range during the entire laying process.   5. Af...

Method of Plastering Internal plastering on surfaces of brick and concrete. External wall plastering. Soffit plastering / Soffit finishing with cement based easy plaster material and wall putty. Improving joint of brick walls & structural concrete joints. Internal Plastering on surfaces of Brick and Concrete Surface where plastering is to be done will be cleaned. Level pegs on walls will be fixed with reference to the off lines to brick walls set out in floors. (Using centre plumb bob and nylon thread). All the brick walls will be watered before pasting mortar on walls. First coat mortar filling (1:4 Cement and Sand) up to 15 mm will be applied on surfaces where required mortar thickness exceed 25mm. Walls and columns will be plastered 1:4 Cement and Sand to achieve semi rough finished surface. Vertical joint of structural columns / walls & brick walls will be treated by fixing 200mm width chicken mesh with wire na...

Execution of Works Fabrication of formwork Typical form work details to perform the shape, lines, levels, dimensions & quality of concrete surfaces of Beams, Columns, RC Wall & Slab are attached separately in attachments. Permanent brick wall form work will be used for lower ground floor beams, pile caps, sump walls and lift walls where the waterproofing will be done. (Pile caps will not be water proofed) Examples: Pile caps & beams in the sump will be formed with sump base for waterproofing. Ply wood form and brick form, both will be used in the sides of pile caps up to the bottom of ground beams, inner face of ground beams at main entrance & most of the structural elements in other areas in ground floor considering the sequence of water proofing and the sequence of concrete casting. Refer drawings 230M/FW/06 and sheet 1, 2 & 3 in the attachments Materials for Form Work GI pipes, form ties, threaded bars and P-cones will be used to tie & brace the form ...

PRE CONSTRUCTION SOIL TREATMENT Pre Construction Soil Treatment implies laying down a chemical barrier to prevent termites from getting back and forth between wood and soil. Termites need wood for food and soil for moisture, so they constantly travel back and forth between wood and soil. Where this situation does not exist, termites build the “shelter tubes” (Mud tubes) to span foundation walls and other parts of the building that separate wood from the soil. Besides building the tubes in and over foundation walls, termites may also build them inside the walls if constructed of concrete blocks or other porous material. In the case of slab buildings, termites enter through expansion joints, cracks, opening for utility and service connections. EXECUTION & SEQUENCE OF WORK Stage I – Plinth Treatment Once the backfilling is completed and prior to lay the leveling screed of ground floor slab, Roding will be done along the edge of beams and on entire slab area at one meter cent...

Description Brick walls will be built for internal partition & as well as perimeter walls of the building. All brick walls will be constructed by maintaining the verticality of walls and the location of the wall as per the construction issued Architectural drawings / approved shop drawings for brick walls in each floor. While constructing the brick walls, opening for the doors, windows & services will be provided according to the dimensions of doors, windows & the dimensions for openings shown in the service drawings by allowing cement / sand plaster thickness of 15mm in each side of the opening. Method of Brick Masonry Method of brick will be described as follows, Construction of brick wall. Construction of stiffener columns, beams & lintels. Providing reinforcement anchors to the stiffener columns from the structural beams, walls & columns. Construction of brick wall Marking for brick walls & openings w...

1. Introduction and General Information This method statement provides the details of the materials, the equipment, the procedure and relevant documents related to the Rock Blasting activity, including the quality control verifications, the measurement verifications, and also the safety precautions to be implemented for this work. 1.1. Location of Works The location of the rock blasting works will be limited to selected areas bound within the Right of Way (ROW). 2. Materials The major materials used for the rock blasting works include, but are not limited to the following. Explosive Dynamite Electric Detonators Ammonium Nitrate Other Barricade Tapes Warning Boards Sand bags Metal plate 3. Equipment The major equipment used for rock drilling and blasting works include, but are not limited to the following. Jack Hammers Air Compressor Circuit tester Tamping rod Siren Tractor JCB Other minor tools ...