Uploaded on 2014-12-06 by OTHNIEL1129

The advancement of construction processes and construction materials in Building construction work has seen a great improvement. In Nigeria, stone and clay was the main material used in foundation works and other parts of the building which requires strength and rigidity but with lots of limitations. With the advent of steel and concrete, the foundation can withstand more strength with less limitations. ![Stone work][2] [1]: https://edxuploads.s3.amazonaws.com/14178901284339412.jpg [2]: https://edxuploads.s3.amazonaws.com/14178907605654827.jpg