(2) Type B (nominal mix 1: 11/2; 3) (a)(ii) Reinforced cement concrete in slab of rafts / strip foundation, base slab of column and retaining walls; etc and other structural members other than those mentioned in 5(a) (i) above not requiring form work (Le. horizental shuttering) complete in all respects ⑵ Type B (nominal mix 1: 11/2:3)