Low thickness cementitious product with elevated surface qualities for non structural applications and method for its manufacture

摘要

maxAim of the present invention is to obtain cementitious products having smooth planar surfaces and low thickness for applications having aesthetic purpose of integrated architecture or as substrates for example for a thin film photovoltaic unit with controlled curling and surface roughness manufactured by mould casting of a fluid composition comprising: I. a hydraulic binder; II. one or more aggregates; III. an anti shrinkage agent; IV. a superplasticizer agent; V. water wherein the percentage by weight of said hydraulic binder in the composition is lower than that of said aggregates and wherein said aggregates have a maximum diameter d not greater than one third of the thickness of the product the final product thus having an arithmetic mean surface roughness Ra not greater than 500 nm and curling not greater than 1500 micron.