1 Concrete aggregate = solids + vehicle|Paint aggregate = solids + vehicle | 2 Solids = coarse + medium + fine |Solids = coarse + medium + fine (stone) (gravel) (sand) | {pulverized }{precipi-} |(pig- {cryst'lline}{tated }(fume) |(ments {(etc.) } | 3 Vehicle = |Vehicle = = reactive binder + evapor'g thinner |= reactive binder+evaporating thinner { cement and com- } (excess water) | (linseed oil) (volatiles) { bining water } | | 4 Solids + compacting = |Solids + compacting = (tamping) | (brushing) = elimination of accidental voids + | = elimination of accidental voids + + proper adhesive contact | + proper adhesive contact | 5 Vehicle + reaction = hydrosilicates, |Vehicle + reaction = linoxyn etc. | (setting) | (drying) | 6 Solids + vehicle + |Solids + vehicle + + lubrication + chemical reaction = | + lubrication + chemical reaction = = final product { solidified binder+}| = final product {solidified binder+} { + solids }| {+ solids } | 7 Final product = concrete |Final product = paint coating { shearing }| { strength } (of max. strength { tensile }| (of maximum { impermeability } { crushing, etc. }| { durability } * * * * * If we assume for both paint and concrete proper lubrication proper proportion of vehicle and solids Then the _essential difference_ between a thin film of Concrete and Paint is Cement Binder Linoxyn Binder _Disadvantages_ Non-elastic and hence an impracticable |Slowly perishable from oxidation by binder for a film to protect non- |the air. similar structural surfaces. | _Advantages_ Durable and with the qualities of a |Semi-elastic and therefore a practic- natural mineral. |able binder for a film to protect |structural surfaces. Postulate (def. Webster's Dictionary--A self-evident problem)