Auram Blocks Data


The frame of the Auram press 3000 can presently fit 18 moulds to produce about 70 different Compressed Stabilised Earth Blocks.

  These series are available
  • Plain square blocks
  • Plain rectangular blocks
  • Round blocks
  • Hollow square blocks
  • Hollow rectangular blocks
  • Hollow square interlocking blocks
  • Hollow rectangular interlocking blocks
  • Plain square interlocking blocks
  • Plain rectangular interlocking blocks
  • Various special blocks


    Notes for data mentioned in the following tables:
  • The Practical daily productivity is with 7 people in the block yard: 3 people for mixing, 1 operator, 2 people on the lever and 1 man stacking for the initial curing.
  • The quantities of materials are calculated with 5 % cement for a soil/sand mix which has a ratio of 80 % soil and 20 % sand.
  • The quantities of blocks per bag mentioned hereafter are indicative and they will vary with the soil type and the compression ratio of the press.

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     BLOCK PLAIN 240



     Use


     This block is used for building plain load bearing walls of 24 cm thick. It can be used up to 4 floors high. It presents the advantage of saving mortar and allowing a fast block laying.

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 240 x 240 x 90

     Soil:

     7.70 (m3)

     Net volume of material = 5.184 Litres

     Sand:

     1.90 (m3)

     Gross volume of block = 5.184 Litres

     Cement:

     12.82 (bag)

     Bearing area = 576 cm²    
     Practical daily productivity for the full size block = 850 Nos.    
     Number of blocks per bag = 78    

     SPECIAL BLOCKS 240



     Use


    These blocks are used for various works with the plain block 240. These blocks are produced in the mould plain 240.

    U shaped blocks are used for precasting the composite lintels and beams, as well as casting plinth and ring beams

     Details

     Quantities of materials per 1000 Blocks

    Nominal block sizes (L x W x H, in mm) = 240 x 240 x 90

     Soil:

    Varies with the block
    Net volume of material = Varies with the block

     Sand:

     Gross volume of block = Varies with the block

     Cement:

     Bearing area = Not relevant    
    Practical daily productivity for the full size block = Varies with the block    
     Number of blocks per bag = Varies with the block    


     BLOCK HOLLOW 240



        Use

     

    This block is used for building composite columns (Reinforced cement concrete in the middle hole).

    It presents the advantage of saving reinforced cement concrete.

     Details

     Quantities of materials per 1000 Blocks

    Full block size (L x W x H, in mm) = 240 x 240 x 90

     Soil:

     5.60 (m3)
    Net volume of material = 3.969 Litres

     Sand:

    1.40 (m3)
    Gross volume of block = 5.184 Litres

     Cement:

    9.34 (bag)
    Bearing area = 451 cm²    
    Void = 21.6 %    
    Practical daily productivity for the full size block =600 Nos.    
     Number of blocks per bag = 107    

     BLOCK ROUND 240



     Use


    This block is used for building composite columns (Reinforced cement concrete in the middle hole).

    It presents the advantage of saving reinforced cement concrete.

     


     Details

     Quantities of materials per 1000 Blocks

     Block size = ø 240 - ø 88 x 90 mm

     Soil:

     5.04 (m3)
     Net volume of material = 3.524 Litres

     Sand:

     1.26 (m3)
     Gross volume of block = 4.071 Litres

     Cement:

     8.40 (bag)

    Bearing area = 391 cm²

       
     Void = 14 %    
     Practical daily productivity for the full size block = 750 Nos.    
     Number of blocks per bag = 119    

     BLOCK PLAIN 290



     Use

    This block is used as a single block width for light load bearing structures, or as a double block width for heavy load bearing structures.
    It presents the advantage of saving mortar and allowing a fast block laying.

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 290 x 140 x 90

     Soil:

     5.17 (m3)
     Net volume of material = 3.654 Litres

     Sand:

    1.29 (m3)
     Gross volume of block = 3.654 Litres

     Cement:

     8.62 (bag)

     Bearing area = 406 cm²

       
     Void = Not relevant    
    Practical daily productivity for the full size block = 850 Nos.    
     Number of blocks per bag = 116    

     SPECIAL BLOCKS 290



     Use


    These blocks are used for various works with the plain block 290. These blocks are produced in the mould plain 290.

    U shaped blocks are used for precasting the composite lintels and beams, as well as casting plinth and ring beams

     Details

     Quantities of materials per 1000 Blocks

     Nominal block sizes (L x W x H, in mm) =
     290 x 140 x 90 mm

     Soil:

     Varies with
     the block

     
     Net volume of material = Varies with the block

     Sand:

     
     Gross volume of block = Varies with the block

     Cement:

     Bearing area = Not relevant    
     Void = Not relevant    
     Practical daily productivity for the full size block =
     Varies with the block
       
     Number of blocks per bag = Varies with the block    

     BLOCK HOLLOW 290



     Use


    This block can be used for light load bearing structures up to 2 floors.

    It presents the advantage of saving materials and providing better heat insulation.

     

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 290 x 140 x 90

     Soil:

     3.84 (m3)
     Net volume of material = 2.846 Litres

     Sand:

     0.96 (m3)
     Gross volume of block = 3.654 Litres

     Cement:

     640 (bag)
     Bearing area = 326 cm²    
     Void = 19.5 %    
     Practical daily productivity for the full size block = 600 Nos.    
     Number of blocks per bag = 156    

     BLOCK ROUND 290



     Use


    This block is used for building composite columns (Reinforced cement concrete in the 4 holes).

    It presents the advantage of saving reinforced cement concrete.

     Details

     Quantities of materials per 1000 Blocks

     Block size = ø 290 x 90 mm

     Soil:

     7.60 (m3)
     Net volume of material = 5.413 Litres

     Sand:

     1.90 (m3)
     Gross volume of block = 5.940 Litres

     Cement:

     12.66 (bag)
     Bearing area = 660 cm²    
     Void = 7.6 %    
     Practical daily productivity for the full size block = 750 Nos.    
     Number of blocks per bag = 79    

     BLOCK HOLLOW INTERLOCKING 245



     Use

    These blocks are used for building disaster resistant constructions, as it has provisions for vertical and horizontal reinforcing elements.

    They can be used up to 2 floors high in seismic zones 3, 4, and 5 (Indian zones).

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 245 x 245 x 95

     Soil:

     7.63 (m3)
     Net volume of material = 5.439 Litres

     Sand:

     1.90 (m3)
     Gross volume of block = 5.702 Litres

     Cement:

     12.71 (bag)
     Bearing area = 560 cm²    
     Void = 8 %    
     Practical daily productivity for the full size block = 500 Nos.    
     Number of blocks per bag = 78    


     BLOCK PLAIN INTERLOCKING 245



     Use


    These blocks cannot be used for building disaster resistant constructions, as it has no provisions for reinforcing elements.

    They can be used up to 2 floors high.

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 245 x 245 x 95

     Soil:

     8.06 (m3)
     Net volume of material = 5.702 Litres

     Sand:

     2.00 (m3)
     Gross volume of block = 5.702 Litres

     Cement:

     13.43 (bag)
     Bearing area = 600 cm²    
     Void = Not relevant    
     Practical daily productivity for the full size block =500  Nos.    
     Number of blocks per bag = 74    


     BLOCK HOLLOW INTERLOCKING 295



     Use


    These blocks are used for building disaster resistant constructions, as it has provisions for vertical and horizontal reinforcing elements.

    They can be used only for ground floor structures in seismic zones 3 and 4 (Indian zones).

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 295 x 145 x 95

     Soil:

     5.48 (m3)
     Net volume of material = 3.800 Litres

     Sand:

     1.37 (m3)
     Gross volume of block = 4.063 Litres

     Cement:

     9.14 (bag)
     Bearing area = 384 cm²    
     Void = 9.3 %    
     Practical daily productivity for the full size block = 500 Nos.    
     Number of blocks per bag = 109    


     BLOCK PLAIN INTERLOCKING 295



     Use

    They can be used for ground floors only.

    They cannot be used for building disaster resistant constructions, as it has no provisions for reinforcing elements.

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 295 x 145 x 95

     Soil:

     5.87 (m3)
     Net volume of material = 4.063 Litres

     Sand:

     1.47 (m3)
     Gross volume of block = 4.063 Litres

     Cement:

     9.78 (bag)
     Bearing area = 427 cm²    
     Void = Not relevant    
     Practical daily productivity for the full size block = 500 Nos.    
     Number of blocks per bag = 102    


     BLOCK HOLLOW DRY INTERLOCKING 300



     Use


    These blocks are used for building disaster resistant constructions, as they have provisions for vertical and horizontal reinforcing elements. They are dry stacked and a concrete grout is cast in the holes to bind all vertical and horizontal joints.

    They can be used only for ground floor structures in seismic zones 3 and 4 (Indian zones).

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 299 x 150 x 100

     Soil:

     5.80 (m3)
     Net volume of material = 4.009 Litres

     Sand:

     1.40 (m3)
     Gross volume of block = 4.225 Litres

     Cement:

     9.75 (bag)
     Bearing area = 390 cm²    
     Void = 10 %    
     Practical daily productivity for the full size block = 500 Nos.    
     Number of blocks per bag = 109    


     BLOCK HOLLOW 390



     Use


    This block can be used for light load bearing structures up to two floors high.

    It presents the advantage of saving materials and providing better heat insulation.

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 390 x 190 x 90

     Soil:

     6.30 (m3)
     Net volume of material = 4.869 Litres

     Sand:

     1.57 (m3)
     Gross volume of block = 6.669 Litres

     Cement:

     10.50 (bag)
     Bearing area = 520 cm²    
     Void = 26.7 %    
     Practical daily productivity for the full size block = 600 Nos.    
     Number of blocks per bag = 95    


    BLOCK PLAIN 190



     Use


    This block is used with the hollow block 390 for the partition walls.

    It can also be used for very light load bearing structures for ground floor only.

     Details

     Quantities of materials per 1000 Blocks

     Full block size (L x W x H, in mm) = 190 x 90 x 90

     Soil:

     2.18 (m3)
     Net volume of material = 1.539 Litres

     Sand:

     0.54 (m3)
     Gross volume of block = 1.539 Litres

     Cement:

     3.63 (bag)
     Bearing area = 171 cm²    
     Void = Not relevant    
     Number of blocks per bag = 270    
     Practical daily productivity for the full size block = 1,400 Nos. (3 blocks per stroke)    


     BLOCK HOURDI 400



     Use


    This block is used to create floors and roofs.

    It rests either on reinforced concrete T beams or on ferrocement channels.

     

     Details

     Quantities of materials per 1000 Blocks

     Block size (L x W x H, in mm) = 400 x 240 x 85

     Soil:

     7.14 (m3)
     Net volume of material = 5.266 Litres

     Sand:

     1.78 (m3)
     Gross volume of block = 7.708 Litres

     Cement:

     11.8(bag)
     Bearing area = Not relevant    
     Void = 31.7 %    
     Practical daily productivity for the full size block = 400 Nos.    
     Number of blocks per bag = 84    

     MINI BLOCK



     Use


    This block is used to build vaults and domes.

    It can be used alone when these structures have the same thickness (7 cm) or it can be used in combination with other blocks when the thickness varies (case for optimised vaults and domes).

     

     Details

     Quantities of materials per 1000 Blocks

     Block size (L x W x H, in mm) = 140 x 70 x 50

     Soil:

     0.736 (m3)
     Net volume of material = 0.490 Litres

     Sand:

     0.186 (m3)
     Gross volume of block = 0.490 Litres

     Cement:

     1.22 (bag)
     Bearing area = 35 cm² (Block laid on edge)    
     Void = Not relevant    
     Practical daily productivity for the full size block = 1,400 Nos.
    (4 blocks per stroke)
       
     Number of blocks per bag = 820    
     
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