From the civilizations of Mesopotam

From the civilizations of Mesopotamia dated 6000 years back the use of earth as a building material is very evident (Deboucha and Hashim, 2011). Earth, being available abundantly has invariably been the main construction material in providing housing systems. It offers a number of environmental benefits, including lower embodied energy levels; high thermal mass and maximizing the use of locally sourced materials (Walker, 2004). Considerable research has been undertaken in the modern times to make earth as a sustainable construction material. This has led to development of technology using earth in the form of rammed earth and unfired bricks popularly known as Compressed Stabilized Earth Blocks (CSEBs). The main advantage of manufacturing unfired bricks is that it requires lesser energy than fired bricks, and hence the release of carbon dioxide into the atmosphere is 80% less than fired bricks (Heath et al., 2009 and Oti et al., 2009).For six decades, extensive attempts have been made to make unfired stabilized bricks to be a reliable walling unit against the more expensive fired bricks and concrete blocks (Jagadish et al., 2008 and Deboucha and Roslan Hashim, 2011). This is achieved by proper grading of the soil mix, proper compaction and stabilization using admixtures, which would ensure increased density, reduced water absorption, increased frost resistance and mainly increased wet compressive strength of masonry blocks. Compressive strength of the block has become a basic and universally acceptable unit of measurement to specify the quality of masonry units, as this is an indirect measure of durability of the blocks (Walker, 2004 and Morel et al., 2007). Hence, durability aspects of cement stabilized earth blocks could be indirectly satisfied through the specification of wet compressive strength.

From the civilizations of Mesopotamia dated 6000 years back the use of earth as a building material is very evident (Deboucha and Hashim, 2011). Earth, being available abundantly has invariably been the main construction material in providing housing systems. It offers a number of environmental benefits, including lower embodied energy levels; high thermal mass and maximizing the use of locally sourced materials (Walker, 2004). Considerable research has been undertaken in the modern times to make earth as a sustainable construction material. This has led to development of technology using earth in the form of rammed earth and unfired bricks popularly known as Compressed Stabilized Earth Blocks (CSEBs). The main advantage of manufacturing unfired bricks is that it requires lesser energy than fired bricks, and hence the release of carbon dioxide into the atmosphere is 80% less than fired bricks (Heath et al., 2009 and Oti et al., 2009). For six decades, extensive attempts have been made ​​to make unfired stabilized bricks to be a reliable walling unit against the more expensive fired bricks and concrete blocks (Jagadish et al., 2008 and Deboucha and Roslan Hashim, 2011). This is achieved by proper grading of the soil mix, proper compaction and stabilization using admixtures, which would ensure increased density, reduced water absorption, increased frost resistance and mainly increased wet compressive strength of masonry blocks. Compressive strength of the block has become a basic and universally acceptable unit of measurement to specify the quality of masonry units, as this is an indirect measure of durability of the blocks (Walker, 2004 and Morel et al., 2007). Hence, durability aspects of cement stabilized earth blocks could be indirectly satisfied through the specification of wet compressive strength.

From the civilizations of Mesopotamia dated 6000 years back the use of earth as a building material is very evident (Deboucha. And, Hashim 2011). Earth being available, abundantly has invariably been the main construction material in providing housing. Systems. It offers a number of environmental benefits including lower, embodied energy levels;High thermal mass and maximizing the use of locally sourced, materials (Walker 2004). Considerable research has been undertaken. In the modern times to make earth as a sustainable construction material. This has led to development of technology using. Earth in the form of rammed earth and unfired bricks popularly known as Compressed Stabilized Earth Blocks (CSEBs).The main advantage of manufacturing unfired bricks is that it requires lesser energy than, fired bricks and hence the release. Of carbon dioxide into the atmosphere is 80% less than fired bricks (Heath et al, 2009 and Oti et al, 2009).

For six. Decades.Extensive attempts have been made to make unfired stabilized bricks to be a reliable walling unit against the more expensive. Fired bricks and concrete blocks (Jagadish et al, 2008 and Deboucha and, Roslan Hashim 2011). This is achieved by proper. Grading of the, soil mix proper compaction and stabilization using admixtures which would, ensure, increased density reduced. Water, absorptionIncreased frost resistance and mainly increased wet compressive strength of masonry blocks. Compressive strength of the. Block has become a basic and universally acceptable unit of measurement to specify the quality of masonry units as this,, Is an indirect measure of durability of the blocks (Walker 2004 and, Morel et al. 2007). Hence,,Durability aspects of cement stabilized earth blocks could be indirectly satisfied through the specification of wet compressive. Strength.