Chemicals for use in industry and science; synthetic resins; unprocessed artificial resins; chemical compounds, compositions, mixtures and preparations for use in the building, mining, civil engineering and construction industries; chemicals and preparations for adding to cementitious mixtures; fillers and filling agents; cementitious admixtures; chemicals for treatment of aggregates; mould release, parting and separating agents; damp resisting and waterproofing compositions; adhesives for use in industry; epoxy resins; bonding agents; curing compounds for use with concrete; curing agents; hardening and strengthening compounds; solvents; emulsions and emulsifiers; chemical additives for use with floor coatings and toppings; admixtures for grouts, concrete, cement, plaster, aggregates and mortar; compounds, chemicals, additives and agents to aid water retention in concrete, cement and constructional material