Concrete and hot climates in northern Peru. Self-repair and strength of concrete incorporating the bacterium Lysinibacillus sphaericu
Keywords:
Bacterial concrete; calcite precipitation; concrete self-repair; concrete strength; Lysinibacillus sphaericus.Synopsis
In the field of construction, the use of concrete is unavoidable and, together with it, there are several anomalies that affect its process. The objective of the research was to determine the influence of the bacterium Lysinibacillus sphaericus on its properties of compressive strength and self-repair of microcracks in concrete, using the dosages of 15, 20 and 25 ml/m3 of concrete, having a design of standard mixes with a w/c ratio of 0.43, where it was obtained that the consistency of the standard concrete is 5" and the maximum value obtained was by adding 15 ml/m3 giving a value of 5. 5", also the compressive strength of the standard concrete at 28 days was 105%, and the maximum strength was obtained by adding 25 ml/m3 to the concrete having a value of 121% unlike the standard concrete of an increase of 16% at the age of 28 days, on the other hand the self-repair was observed by SEM tests in the science laboratory and the improvement of the compressive strength of concrete by breaking tests in the concrete laboratory; The self-repair analysis was performed at 7 and 14 days, obtaining the best results for the 25 ml/m3 dose at 13% and 69% respectively by SEM. These results are a starting point for other researchers, either to replicate these procedures or to implement new alternatives in order to prevent negative effects on the useful life of the structures and the environment.
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Published
April 14, 2023
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Copyright (c) 2023 Yuber Saúl Bautista Morales, Marco Antonio Junior Cerna Vasquez
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ISBN-13 (15)
978-9942-7099-2-9
Publication date (01)
2023-04-14
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EPUB
ISBN-13 (15)
978-9942-7099-2-9
Publication date (01)
2023-04-14
