The appearance of the finished product is directly related to the material and quality of the mould itself. The mould can be made from various materials Such as: Steel ، fibre glass ، Plastic ، Rubber moulding compounds ، GRP ، GRC itself. A combination of materials is frequently necessary in order to achieve desired stiffness, shape and surface finish. For complicated details, moulds of plastic or rubber are used.
Glass fibre reinforced concrete products are manufactured using various techniques, the most popular are : Glass fibre reinforced concrete products are manufactured using various techniques, the most popular are Spray process:The water and admixture are placed in a high shear mixer and the sand/cement are slowly added ، Premix GRC : The sand and cement are mixed dry and then the water/admixture and polymer are added.
The main contractor should provide man lifts, scaffolding and surveyor for levels around the building. GRC sub contractor should start the production immediately in order to cover these areas within a short time as much as possible.
Site accessibility, power supply and platforms: Clear space for storing GRC material and access road has to be provided by the main contractor to proceed the works at the areas specified and agreed mutually.