Photocatalytic Concrete in Color
Interest in using environmentally compatible materials for new construction projects and for the renewal of existing projects is increasing rapidly, both from private and public sector customers. One of the more novel materials with environmental benefits has been the innovation of photocatalytic building products, such as glass, coatings and more recently, photocatalytic concrete.
Products made of photocatalytic concrete are mainly achieved by cements that are doped with photocatalytic titanium dioxide, therefore only white and grey products are commonly available. There is interest and demand for colored products for aesthetic reasons, but until now, the technology for colored photocatalytic concrete did not exist. The supposition that adding standard inorganic color pigments to photocatalytic concrete may reduce or eliminate the photocatalytic activity has already been disproved (see BFT 12/2009) – but could inorganic pigments themselves be modified to enable the...
