BEDOYA, Carlos Mauricio. Manual concrete manufacturing by means of mechanical suspension for application in popular habitats. []. , 24, 1, pp.98-105.   03--2022. ISSN 1657-0308.  https://doi.org/10.14718/revarq.2022.24.1.4064.

This paper presents a methodology for the manual preparation of concrete mixtures using the principle of mechanical suspension, with which concrete mixtures were obtained with optimal performance in terms of compressive strength, porosity, density and void percentage. Destruction tests of cylindrical samples were performed at 7, 14, 28 and 56 days of age; porosity, bulk density and voids according to ASTM C-642; Scanning Electron Microscopy (SEM) with chemical probe analysis; and ultrasonic pulse velocity (UPV) measurements. The results allow to conclude that it is feasible to manually make concrete mixtures without increasing the consumption of cement, optimizing the behavior of the material in terms of durability, since a homogeneous material was obtained with a better dispersion of the cementing material, which qualifies its rheological conditions. This work was granted an Invention Patent, with number 16136903, and both the author and the Universidad Nacional de Colombia have donated this process to society so that it can be carried out in territories such as Latin America, Africa and Asia, that share self-construction processes, with advice from academic and social work centers. It can also be used in works that require making small quantities of concrete for mixing adjustments.

: cement; concrete; construction materials; durability; sustainable construction; traditional architecture.

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