KCSE 2012 Building Construction Paper 2 with Marking Scheme

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TEST A: BLOCKWORKS AND BRICKWORKS  (54 marks)  (13 Hours)

Test A shows a plan, incomplete elevation and a secrion of a return angle wall with an opening, platsterwork screed and a skirting. One length of the wall is built in blockwork showing some courses of brickwork while the other length of wall is built in brickwork shoeing at quoins. Part of the inner surface of the wall, at the return angle is plastered. The floor is wood float screeded and a 100mm skirting applied. Blockwork joints are finished flush while the archwork joints and all brickwork joints are tooled.

                                             MATERIALS SPECIFICATION PER CANDIDATE

 No.   ITEM DESCRIPTION    MATERIAL   QUANTITY   SIZE (mm)   REMARKS 
  1   Blockwork   Concrete blocks    16   450 x 225 x 150   Bedded in Sand/ Lime mortar  
  2  Brickwork   Clay/ concrete bricks    52   225 x 115 x 75   Bedded in 10mm sand/ Lime plaster 
  3   Mortar   Lime/ sand   Sufficient            -  For bedding blocks/ bricks and plaster  
  4   Archwork   Timber   1 piece   1000 x 250 x 20   Arch support 
  5   Archwork   Timber   1 piece    1000 x 380 x 20   To be used as gauge and straight edge 

BLOCKWORK AND BRICKWORK

KCSE 2012 BC PP1 Q1

TEST B: FORMWORK  (46 Marks)   (12 Hours)

Test B shows a pictorial view and elevations part of a formwork for an in-situ concrete floorslab and edge beam. Prepare the timber pieces and construct the model.

MATERIALS SPECIFICATIONS PER CANDIDDATE

  1. CUTTING LIST
     ITEM No.   DESCRIPTION   SIZE   No. OFF   REMARKS 
         1  Cross head  650 x 45 x 45       2   
         2  Joist  230 x 45 x 20      2   
         3  Runner  600 x 45 x 20      1  
         4  Strut  1200 x 45 x 20       1  Cut into 4 pieces 
         5  Stiffener  600 x 45 x 20       1  Cut into 2 pieces
         6  Cleat  600 x 45 x 20      1  Cut into 8 pieces
         7  Bottom and Slides   600 x 150 x 20      4  
         8  Plywood  350 x 150 x 3      1  
  2. NAILS - 38mm wire nails - sufficient
              - 25mm wire nails - sufficient

KCSE 2012 BC PP1 Q2

 


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