CELLULOSE FIBRES FOR FIBRE-REINFORCED CEMENT PRODUCTS

摘要

The invention concerns cellulose fibres for the manufacture of fibre-reinforced cement products, and more particularly cellulose fibres comprising a first and a second fraction of cellulose fibres obtained by fractionation of the same parent cellulose pulp followed by separate refining treatment of the first and second fraction to a different refining level. The invention also relates to a process for the manufacture of fibre-reinforced cement products comprising the fractionation of parent cellulose pulp to obtain a first and a second fraction of cellulose fibres, followed by separate refining treatment of each of the first and second fraction of cellulose fibres to a different refining level, and blending the first and the second fraction of cellulose fibres before their introduction into the slurry feeding unit of the fibre-reinforced cement production line. Other objects of the present invention are fibre-reinforced cement products comprising said cellulose fibres and fibre-reinforced cement products obtained by said process.