Investigation on the use of burnt colliery spoil as aggregate in low to normal strength concrete

Burnt Colliery Spoil is a waste material from coal mining industry, the residue following ignition of coal mine spoil heaps which results in partial to complete combustion of coal particles in the spoil [HD 35/04]. Sherwood (1994) concluded that BCS had high potential as recycled secondary aggregate suitable for use in hydraulically bound mixtures. BCS was also shown to be suited to use as selected granular fill or sub-base or synthesis aggregate in concrete2.