Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete
This paper investigates the porosity and the mechanical strength of an Autoclaved Clayey Cellular Concrete (ACCC) with the binder produced with 75 wt% kaolinite clay and 25 wt% Portland cement. Aluminum powder was used as foaming agent, from 0.2 wt% to 0.8 wt%, producing specimens with different por...
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Series: | Advances in Civil Engineering |
Online Access: | http://dx.doi.org/10.1155/2010/194102 |
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doaj-26c0e772dc8945d895be25017bad85fc2020-11-24T21:39:16ZengHindawi LimitedAdvances in Civil Engineering1687-80861687-80942010-01-01201010.1155/2010/194102194102Porosity and Mechanical Strength of an Autoclaved Clayey Cellular ConcreteP. O. Guglielmi0W. R. L. Silva1W. L. Repette2D. Hotza3Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, BrazilDepartment of Civil Engineering (ECV), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, BrazilDepartment of Civil Engineering (ECV), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, BrazilDepartment of Chemical Engineering (EQA), Federal University of Santa Catarina (UFSC), 88040-900 Florianópolis, SC, BrazilThis paper investigates the porosity and the mechanical strength of an Autoclaved Clayey Cellular Concrete (ACCC) with the binder produced with 75 wt% kaolinite clay and 25 wt% Portland cement. Aluminum powder was used as foaming agent, from 0.2 wt% to 0.8 wt%, producing specimens with different porosities. The results show that the specimens with higher content of aluminum presented pore coalescence, which can explain the lower porosity of these samples. The porosities obtained with the aluminum contents used in the study were high (approximately 80%), what accounts for the low mechanical strength of the investigated cellular concretes (maximum of 0.62 MPa). Nevertheless, comparing the results obtained in this study to the ones for low temperature clayey aerated concrete with similar compositions, it can be observed that autoclaving is effective for increasing the material mechanical strength.http://dx.doi.org/10.1155/2010/194102 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
P. O. Guglielmi W. R. L. Silva W. L. Repette D. Hotza |
spellingShingle |
P. O. Guglielmi W. R. L. Silva W. L. Repette D. Hotza Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete Advances in Civil Engineering |
author_facet |
P. O. Guglielmi W. R. L. Silva W. L. Repette D. Hotza |
author_sort |
P. O. Guglielmi |
title |
Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete |
title_short |
Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete |
title_full |
Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete |
title_fullStr |
Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete |
title_full_unstemmed |
Porosity and Mechanical Strength of an Autoclaved Clayey Cellular Concrete |
title_sort |
porosity and mechanical strength of an autoclaved clayey cellular concrete |
publisher |
Hindawi Limited |
series |
Advances in Civil Engineering |
issn |
1687-8086 1687-8094 |
publishDate |
2010-01-01 |
description |
This paper investigates the porosity and the mechanical strength of an Autoclaved Clayey Cellular Concrete (ACCC) with the binder produced with 75 wt% kaolinite clay and 25 wt% Portland cement. Aluminum powder was used as foaming agent, from 0.2 wt% to 0.8 wt%, producing specimens with different porosities. The results show that the specimens with higher content of aluminum presented pore coalescence, which can explain the lower porosity of these samples. The porosities obtained with the aluminum contents used in the study were high (approximately 80%), what accounts for the low mechanical strength of the investigated cellular concretes (maximum of 0.62 MPa). Nevertheless, comparing the results obtained in this study to the ones for low temperature clayey aerated concrete with similar compositions, it can be observed that autoclaving is effective for increasing the material mechanical strength. |
url |
http://dx.doi.org/10.1155/2010/194102 |
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