The frame of the Auram press 3000 can presently fit 19 moulds to produce about 80 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 bags of cement mentioned are 50 kg.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. 
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 (m^{3}) 
Net volume of material = 5.184 Litres 
Sand: 
1.90 (m^{3}) 
Gross volume of block = 5.184 Litres 
Cement: 
12.82 (bag) 
Bearing area = 576 cm^{²} 


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 (m^{3}) 
Net volume of material = 3.969 Litres 
Sand: 
1.40 (m^{3}) 
Gross volume of block = 5.184 Litres 
Cement: 
9.34 (bag) 
Bearing area = 451 cm^{²} 


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 (m^{3}) 
Net volume of material = 3.524 Litres 
Sand: 
1.26 (m^{3}) 
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 (m^{3}) 
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 (m^{3}) 
Net volume of material = 2.846 Litres 
Sand: 
0.96 (m^{3}) 
Gross volume of block = 3.654 Litres 
Cement: 
6.40 (bag) 
Bearing area = 326 cm^{²} 


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 (m^{3}) 
Net volume of material = 5.413 Litres 
Sand: 
1.90 (m^{3}) 
Gross volume of block = 5.940 Litres 
Cement: 
12.66 (bag) 
Bearing area = 660 cm^{2} 


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 (m^{3}) 
Net volume of material = 5.464 Litres 
Sand: 
1.90 (m^{3}) 
Gross volume of block = 5.702 Litres 
Cement: 
12.71 (bag) 
Bearing area = 575 cm^{2} 


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 (m^{3}) 
Net volume of material = 5.702 Litres 
Sand: 
2.00 (m^{3}) 
Gross volume of block = 5.702 Litres 
Cement: 
13.43 (bag) 
Bearing area = 600 cm^{2} 


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 (m^{3}) 
Net volume of material = 3.825 Litres 
Sand: 
1.37 (m^{3}) 
Gross volume of block = 4.063 Litres 
Cement: 
9.14 (bag) 
Bearing area = 403 cm^{2} 


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 (m^{3}) 
Net volume of material = 4.063 Litres  Sand: 
1.47 (m^{3}) 
Gross volume of block = 4.063 Litres 
Cement: 
9.78 (bag) 
Bearing area = 427 cm^{2} 


Void = Not relevant 


Practical daily productivity for the full size block = 500 Nos. 


Number of blocks per bag = 102 


BLOCK HOLLOW DRY INTERLOCKING 250 
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 up to 2 floors high 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) = 250 x 250 x 100 
Soil: 
7.84 (m^{3}) 
Net volume of material = 5.841 Litres  Sand: 
2.00 (m^{3}) 
Gross volume of block = 6.25 Litres 
Cement: 
13.06 (bag) 
Bearing area = 566 cm^{2}



Void = 8 % 


Practical daily productivity for the full size block = 500 Nos. 


Number of blocks per bag = 72 


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 (m^{3}) 
Net volume of material = 4.234 Litres 
Sand: 
1.40 (m^{3}) 
Gross volume of block = 4.485 Litres 
Cement: 
9.75 (bag) 
Bearing area = 423 cm^{2} 


Void = 10 % 


Practical daily productivity for the full size block = 500 Nos. 


Number of blocks per bag = 109 


BLOCK INNOBLOC 250 
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 up to 2 floors high 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) = 250 x 250 x 100 
Soil: 
8.06 (m^{3}) 
Net volume of material = 5.772 Litres  Sand: 
2.00 (m^{3}) 
Gross volume of block = 6.250 Litres 
Cement: 
13.43 (bag) 
Bearing area = 566 cm^{2}



Void = 8 % 


Practical daily productivity for the full size block = 500 Nos. 


Number of blocks per bag = 74 


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 (m^{3}) 
Net volume of material = 4.869 Litres 
Sand: 
1.57 (m^{3}) 
Gross volume of block = 6.669 Litres 
Cement: 
10.50 (bag) 
Bearing area = 541 cm^{2} 


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 (m^{3}) 
Net volume of material = 1.539 Litres 
Sand: 
0.54 (m^{3}) 
Gross volume of block = 1.539 Litres 
Cement: 
3.63 (bag) 
Bearing area = 171 cm^{2} 


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 (m^{3}) 
Net volume of material = 5.266 Litres 
Sand: 
1.78 (m^{3}) 
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 (m^{3}) 
Net volume of material = 0.490 Litres 
Sand: 
0.186 (m^{3}) 
Gross volume of block = 0.490 Litres 
Cement: 
1.22 (bag) 
Bearing area = 35 cm^{2} (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 

