| 摘要 |
The present invention relates to the use of blood in the construction and building industry, whereby blood and extracts of blood containing haemoglobin are used as air entraining colloids. The recommended process for preparing a lightened material consists in associating a construction element chosen from the cements, mortars and concretes, with at least one air entraining colloid chosen from whole blood, globules, red blood corpuscles and haemoglobin. The invention also relates to the lightened material obtained according to this process.
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