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    • method of statement for unit masonry

    method of statement for unit masonry

    • Posted by Hany Ismail, MSC, PMP
    • Categories Project Management
    • Date January 17, 2013
    • Comments 0 comment

    method of statement for unit masonry,Free Method Statements,Sample Construction Method Statement


     

    SUMMARY: masonry method statement includes unit masonry assemblies consisting of the following:



    A. Concrete Masonry Unit

     100mm Hollow and Solid

     150mm Hollow and Solid

     200mm Hollow and Solid

     200mm Insulated Blocks

    B. Mortar Materials /Mix


     2. Materials to be used:

    Approved Companies:

    a. Blocks

    b. All masonry units will be delivered to site in pallets which will be stored in elevated platform in dry location following the approved logistic plan. If stored in open place, top and sides of stacks will be covered with waterproof sheeting securely tied.

    c. Compressive Filler

    d. Accessories

    e. Mortar Mix: Job mix mortar should have a minimum cement to sand mix ratio of 1:3 (subject for Approval) and the strength is not less than 5 + 1N/mm. Mortar should be used within 30 minutes after mixing.


    3. Equipment and Tools:

    a) Motor-driven saws for cutting masonry units

    b) Water cooled saws

    c) Electrical grinders for cutting for embedded E/M conduits.

    d) Mechanical mixer machine for mortar job mix.

    e) Tools; wire level, plumb bob, chisel, concrete swivel, aluminum bar, steel angle 90o/45o/135o, rubber hammer, brush, bucket, one wheel trolley.


    4. Preparation

    4.1 A survey and inspection on completion of structural work for structural element recording deviations and deficiencies, if any a complete report of each building shall be submitted to the Engineer prior to commencing building masonry assemblies on Foundation.

    4.2 Clean the floor, under wall course of dirt using brush. Remove any slurry, laitance, leaving a sound concrete.

    4.3 Setting out for unit masonry work for each building in respect to coordinates from approved shop drawing.


    5. Installation

    5.1 Lay out walls for accurate spacing of surface bond patterns and for accurate location of openings movement type joints, returns and offset.

    5.2 Wet bricks before laying, allow units to absorb water so they are dump but not wet at the time of laying the course.

    5.3 Wet the floor under walls

    5.4 For starting course on footings spread out full mortar bed, including areas under cell, following the approved setting of walls.

    5.5 Masonry unit will be laid with full coverage mortar on horizontal and vertical shells and will maintain a joint thickness of 10mm minimum and 12mm maximum for joints.

    5.6 Connection between walls and partition should be bonded, tied by using wall angle to be nailed in the column before the succeeding layer is laid. For a partition to be connected to an adjacent wall, this will be done by toothing.

    5.7 Submitting “Work Inspection Request” to the consultant to get approval on the first course. It should be signed by all concerned related discipline for coordination purposes.

    5.8 After layout approval, courses shall be laid to comply with specified construction tolerances, with courses accurately spaced and coordinated with other construction. No higher than six courses shall be laid in one day.

    5.9 At stopping and resuming work in each course, rack back one-half running bond or one-third unit length for one third running bond, clean exposed surfaces of set masonry and remove loose masonry units and mortar before laying fresh masonry.

    5.10 Fill cores in hollow masonry units with mortar under bearing plates, beams, lintel and post, door and window opening jambs.

    5.11 Leave opening for E/M embedment and fixture after approved successful installation, complete the masonry to match the adjacent wall. Opening for E/M embedment routing, grinder and chisel will be used.

    5.12 Lintel beams will be casted-in-situ. Use concrete lintels minimum depth 200mm for all openings in masonry assemblies with 200mm minimum bearing at each jamb.

    5.13 Install mortar in joint between top of partition and the soffit after filling gap with solid piece blocks and install compressible filler.

    5.14 Fill space between hollow metal frames and masonry solidly with mortar.

    5.15 Clean unit masonry as work progresses by dry brushing to remove mortar fins and smears before tooling joints.

    5.16 Remove and replace masonry units that are loose, chipped and broken. Install new units to match adjoining units with fresh mortar.

    5.17 Curing of masonry will be for 3 days by sprinkling of water twice a day.


    6.0 Construction Tolerances.

    6.1 Plumb variation for vertical lines and surfaces of columns, walls, and arises should not exceed 3mm in 3m, nor 6mm in 12m. 6.2 Variations from level for bed joints and lines of exposed lintels, sills, parapets, horizontal grooves should not exceed 3mm in 6m, nor 6mm in 12 m.

    6.3 Variations of Linear Building Line for columns, walls and partition do not exceed 6mm in 6m, nor 10mm in 12m.

    6.4 Variations in Mortar-Joint Thickness should be 3mm with a maximum thickness of 12mm.


    Tag:masonry, masonry assemblies, masonry method statement, method of statement, method of statement for unit masonry, method statement, method statement masonry, unit masonry

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    Hany Ismail, MSC, PMP
    Hany Ismail, MSC, PMP

    Hany Ismael is the founder and CEO of Planning Engineer Est. in Egypt. He has started his career back in 2003 as a site engineer, technical office engineer, planning engineer, planning manager, and finally planning department manager where he has been involved in several mega construction projects in Egypt and Saudi Arabia. In 2016, he established his own company in Egypt “Planning Engineer Est.” Hany gained his MSc degree in project management from Liverpool University-UK 2013-2016, PMP certified from PMI-USA 2010, and BSc Civil Engineer Tanta University-Egypt 2003. Hany provided more than 3,500 hours of planning and project management training on his website planningengineer.net, YouTube channel, and offline courses since 2011. He enjoys teaching project management in simple and practical way, and he developed several planning tools, techniques and courses.

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