Structural Characteristics of Sandcrete Blocks Produced in South-East Nigeria

Abstract

Blocks are indispensable materials predominantly used as walling units in the construction of shelter
(which is one of the basic needs of man) and other infrastructures. Some of the problems faced in construction
can be linked to this masonry unit, which is a major construction material. A survey was conducted of the
various block moulding firms within south east Nigeria to determine the mode of production of blocks, mix
ratios nature/quality of sand and the structural characteristics of the blocks. In this paper, the results obtained
were compared with standard specifications. It was found out that most of the blocks produced are generally
substandard. Block production practices in Nigeria should be looked into by the government. Quality control
should be introduced to assist block producers to produce strong and durable blocks at minimal cost.