The compressive strength of the Sandcrete blocks is below standard recommended by the Nigerian Industrial Standards (NIS) 87:2000. The compressive strength of individual blocks ranges from 0.12N/mm2 to 1.46 N/mm2 for the 150mm (6 width) and for the 225mm (9 width) ranges from 0.31 N/mm2 to 1.36 N/mm2.

The compressive strength was found to be between 0.25 N/mm 2 and 0.92 N/mm 2 which are far below the specified values (2.5 N/mm 2 to 3.45N/mm 2 respectively) in the Nigerian Industrial Standard (NIS 87, 2000). It is concluded that the commercially produced sandcrete blocks in Kano State are of lower standard than expected.

Also, the compressive strength of the cubes increases with increase in the saturated surface dry density as shown in tabl 2. from the same table 2; the compressive cube strength ranges from 4.98N/mm² to 11.6N/mm² which is higher than the minimum compressive strength of sandcrete block by NIS 87:2007 ranging from 2.5N/mm² to 3.45N/mm²

The aggregate grading of the soils used for the manufacture of sandcrete blocks are within the limit specified by BS882 1992 and therefore suitable for block making. The compressive strength of the sandcrete blacks was for to be below standard.The compressive strength of individual block tested was between0.63N/mm2 and 0.83N/mm2.

The major problem facing the production of sandcrete hollow block is that the tested compressive strength of sandcrete hollow blocks produced by most commercial block making industries did not ...

The compressive strength of 207.5, 204.6 and 203.4 MPa; and tensile strength of 13.86, 13.68 and 13.60 MPa were obtained for A, B and C respectively. Rockwell hardness values obtained are 89.0, 89.9 and 86.6 while the morh¡¯s hardness values are 6.90, 6.96 and 7.03 respectively for sample A; B and C.

(PDF) compressive strength of sandcrete blocks | Orjinta ... For the production of hollow sandcrete block using hand mould, the mould is raised at a height of 0.6m in order to make the mixture compact very well and produce a good strength and more satisfactory blocks. sandcrete block hollow - struisbaaifishing4fun.co.za

b. Compressive Strength Test – this guides to determine the compressive strength of both the sandcrete and quarry dust blocks respectively. The results obtained from these tests together with the conceptual theory formed the basis upon which conclusion …

The compressive strength was found to be between 0.25 N/mm 2 and 0.92 N/mm 2 which are far below the specified values (2.5 N/mm 2 to 3.45N/mm 2 respectively) in the Nigerian Industrial Standard (NIS 87, 2000). It is concluded that the commercially produced sandcrete blocks in Kano State are of lower standard than expected.

Sandcrete blocks produced from cassava waste water had compressive strength of 3.38 N.mm 2 at 28 curing days; while the fresh water sandcrete blocks recorded compressive strength of 2.04 N/mm 2 …

Nevertheless, the compressive strength of the sandcrete blocks themselves was below the standard recommended by Nigerian Industrial Standard (NIS) 87: 2000. The compressive strength of individual blocks was between 0.11 N/mm 2 and 0.75 N/mm 2, and the average compressive strength of the blocks were between 0.14 N/mm 2 and 0.66 N/mm 2 .

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compressive strength of sandcrete blocks | Orjinta Victor,, The compressive strength of sandcrete blocks is affected by the mix proportion, quality of material used in making them, size, shape, and the mode of manufacture (ie hand or machine mould) Physical conditions such as method and days of curing, duration of time, temperature etc will ...

Three (3) block manufacturing sites in Nigeria were visited and 27 (twenty-seven) blocks of size 450 mm x 225 mm x 225 mm were selected randomly from the sites. The properties of the river sand was analyzed through sieve analyses, bulk density, silt content and water absorption while the compressive strength of the blocks was also tested.

Compressive Strength of Manual and Machine Compacted ... (PDF) compressive strength of sandcrete blocks | Orjinta ... For the production of hollow sandcrete block using hand mould, the mould is raised at a height of 0.6m in order to make the mixture compact very well and produce a good strength and more satisfactory blocks.

The average compressive strengths of the sandcrete blocks for all ten block manufacturing industries investigated fell below the standards recommended by the Nigerian Industrial Standard (NIS) 87 ...

Compressive strength of hollow sandcrete blocks in range of 0.12 N/mm2 to 0.54 N/mm2 was obtained which is below the recommendable value of 3.45 N/mm2 for load bearing hollow sandcrete blocks. This indicates that these blocks are below the standard for load-bearing sandcrete blocks and cannot be used as load bearing walling units.

Typical products have minimum crushing strength of; Table 2.1 The Crushing Strength of Sandcrete blocks BLOCK TYPE CONCRETE DENSITY STRENGTH N/mm2 3 Kg/m Dense aggregate 1500-2100 2.8-3.5 Lightweight aggregates 700-1500 2.8-10.5 Autoclaved aerated 400-900 2.8-7.5 Adopted from Alan Everett (1994) RESEARCH METHODOLOGY The compressive strength of ...

Sep 03, 2016· He went further to indicate that the maximum compressive strength of commercially produced sandcrete blocks was within range of 0.87N/mm2as against minimum recommended standards of 3.5N/mm2 for 9 inches blocks. Abdullahi (2005) investigated the strength characteristics of sandcrete blocks in Bosso and Shiroro areas in Minna, Nigeria.

To this end, the objective of this research was to determine the compressive strength of the pedestrian-type concrete paving stones with f´c = 320 Kg/cm2, made by substituting the cement in 15% and 30% for the combination of egg shell (pulverized) and ground glass. The study was carried out in the city of Huaraz, using residues of

Three (3) block manufacturing sites in Nigeria were visited and 27 (twenty-seven) blocks of size 450 mm x 225 mm x 225 mm were selected randomly from the sites. The properties of the river sand was analyzed through sieve analyses, bulk density, silt content and water absorption while the compressive strength of the blocks was also tested.

Jun 17, 2017· The average compressive strength obtained in Table 3 is 207.5; 204.6; and 203.4 MPa for sample A, B and C respectively which is within the range of the compressive strength (100 – 250 MPa) specified for building stone 17. Tensile strength is also a …

Three (3) block manufacturing sites in Nigeria were visited and 27 (twenty-seven) blocks of size 450 mm x 225 mm x 225 mm were selected randomly from the sites. The properties of the river sand was analyzed through sieve analyses, bulk density, silt content and water absorption while the compressive strength of the blocks was also tested.

Sandcrete blocks are usually molded from constituents of sand, water and Portland cement in specified or prescribed mix ratio or proportion. The compressive strength of sandcrete blocks is affected by the mix proportion, quality of material used in making them, size, shape, and the mode of manufacture (i.e. hand or machine mold).

The results revealed that sandcrete blocks produced with fine aggregate from Ipele, Shagari and Emure gives compressive strength of 4,15N/MM2, 3.56N/MM2 and 5.48N/MM2 at 28 days respectively.

Compressive strength of hollow sandcrete blocks in range of 0.12 N/mm2 to 0.54 N/mm2 was obtained which is below the recommendable value of 3.45 N/mm2 for load bearing hollow sandcrete blocks. This indicates that these blocks are below the standard for load-bearing sandcrete blocks and cannot be used as load bearing walling units.

ABSTRACTWallingmaterials play a vital role in the construction of buildings. The study run acomparative analysis between Hydraform blocks and sandcrete blocks which areboth major components of walling to ascertain which block is more costeffective, has high compressive strength and compare the benefit of Hydraformblock to sandcrete block.