(a) mixing Portland cement with sawdust in specified proportion in the concrete
(b) using coke-breeze, cinder or slag as aggregate in the concrete
(c) mixing aluminium in the concrete
(d) none of the above
The correct Answer Is
(b) using coke-breeze, cinder or slag as aggregate in the concrete
(b) using coke-breeze, cinder or slag as aggregate in the concrete
(c) mixing aluminium in the concrete
(d) none of the above
The correct Answer Is
(b) using coke-breeze, cinder or slag as aggregate in the concrete
