Evaluation of the Technological Properties of Soil–Cement Bricks with Incorporation of Coconut Fiber Powder

Evaluation of the Technological Properties of Soil–Cement Bricks with Incorporation of Coconut Fiber Powder

The objective of this work was to evaluate the effect of partial replacement of soil by different percentages of coconut fiber powder in the manufacture of soil–cement bricks. The reference mix ratio of 10:1 (soil:cement) in volume was used for the manufacture of bricks, in addition to the partial r...

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Bibliographic Details
Published in:Eng (Basel, Switzerland) Vol. 3; no. 3; pp. 311 - 324
Main Authors: Ferreira, Gabriela Machado Guimarães, Cecchin, Daiane, Valadão, Izabella Christynne Ribeiro Pinto, da Silva, Tulane Rodrigues, do Carmo, Dirlane de Fátima, Moll Hüther, Cristina, Ferreira, Flávio, de Azevedo, Afonso Rangel Garcez
Format: Journal Article
Language:English
Published: Basel MDPI AG 01-07-2022
Subjects:
agricultural waste
Bricks
Cement
Clay soils
coconut fiber
Compressive strength
Construction industry
Consumption
Developing countries
Infrastructure
LDCs
Mechanical properties
Natural resources
Raw materials
Soil properties
soil–cement bricks
Tensile strength
Water absorption
Redonda
Brazil
Rio de Janeiro Brazil
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Summary:The objective of this work was to evaluate the effect of partial replacement of soil by different percentages of coconut fiber powder in the manufacture of soil–cement bricks. The reference mix ratio of 10:1 (soil:cement) in volume was used for the manufacture of bricks, in addition to the partial replacement of soil mass by 5, 10, and 15% of coconut fiber. The characterization of the raw materials was performed with the analysis of the granulometry, together with technological tests, such as mechanical compressive strength and water absorption. As a result, it was observed that the soil has 34.30% clay and 62.80% sand, characterizing a sandy-clay soil type and the coconut fiber powder was characterized as a fine aggregate. The mechanical compressive strength tests showed a decrease in their average values according to the increase in the incorporation of coconut fiber into the bricks. It was concluded that the results of the mechanical compressive strength and some of the water absorption are in disagreement with the Brazilian technical standard. This conclusion corroborates other studies that show the difficulty in standardizing reference mixtures and working with soil, which is a highly heterogeneous material.
ISSN:2673-4117
2673-4117
DOI:10.3390/eng3030023