the ingredients sand gravel cement water and the weather temperature are basic contributors to the mix in most cases the crushing strength of the concrete will be the decisive factor in identifying the various proportions of the mix the table below sets out the concrete mix used for building the pilot project turning now to the mode of production of the element 5 manual and mechanised methods are presently contemplated the manual production is well suited for a limited production of the elements for an individual wishing to construct his her own home unit the means and the process of production are dependent upon moulds 40 shown in fig1 c and 1 d and are made out of material that allows multiple use and minimal deterioration elements 5 could be produced as follows procurement or fabrication of moulds 40 arranging moulds in batteries placing reinforcing bars 30 mixing concrete placing concrete in the mould 40 and vibrating as per standards casting the reinforced concrete curing and storing as preferably the invention is intended to minimize the cost of reinforced concrete elements it is important that the mould material is obtainable and that moulds fabricated from such material can be readily used without deterioration the most suitable materials found for the purpose are grc or grp or pvc or polyethylene moulds cast to the form the pvc or polyethylene moulds are made in.