HYDRATED CALCIUM SILICATE PART AND COMPOSITION, AND PROCESS FOR MANUFACTURING SAID HYDRATED CALCIUM SILICATE PART

摘要

The invention relates to an extruded part based on alkali-resistant glass fibres in hydrated calcium silicate obtained essentially by the reaction of slaked lime and silica having a particle size defined by the parameter D₅₀ of 100 µm or less. The invention furthermore relates to an extrudable composition comprising free water, silica with a particle size defined by the parameter D₅₀ of 100 µm or less, slaked lime, alkali-resistant glass fibres, a plasticizer and a cohesion agent. The invention also relates to a process for manufacturing a part based on alkali-resistant glass fibre and hydrated calcium silicate, said process comprising extrusion of the composition, the predrying of the fresh part and the autoclaving of the predried part at a temperature of above 150°C.