Source: Structural Technology Group of the Universitat Politècnica de Catalunya (UPC), Spain
Researchers at UPC/BarcelonaTech have patented a concrete that supports natural, accelerated growth of pigmented organisms, focusing on the effect of layering two cement-based materials for a finished structure and surface: 1) a conventional carbonated concrete, based on portland cement, with which technicians could obtain a material of about pH 8; and, 2) a concrete with magnesium phosphate cement binder, yielding a hydraulic, slightly acidic conglomerate that does not require any treatment to reduce its pH.
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