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361367

STRENGTH ENHANCEMENT AND COST ANALYSIS FOR LIGHTWEIGHT FOAMED CONCRETE IN RESIDENTIAL BUILDINGS

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Last updated: 24 Dec 2024

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Abstract

This study presents a primary batch of results for an ongoing extensive experimental program related to protein based foamed concrete. Compressive strength is herein investigated as a function of dry density, water content, curing conditions, cement type and, most importantly, foaming agents (employed in the cement paste). Structural Foamed Concrete (SFC) was investigated using a fixed water/cement ratio, CEM I-52.5 N cement, wet-burlap (23 ± 3°C) curing conditions, variable polypropylene fiber content (calculated as a percentage of cement content). Initially, three different foaming protein-based agents were utilized/tested, prior to selecting the agent yielding the highest concrete compressive strength; the latter agent continued as a fixed parameter in the current investigation. This experimental study comprises ninety six (96) foamed concrete specimens with a dry density ranging from 1500 to 1600 kg/m3. The different polypropylene fiber percentages were investigated to enhance the compressive and tensile strength/properties. Results showed that the optimal polypropylene fiber – cement content based (by weight) - dose of 0.3% yields a 32% increase and 27% increase for compressive and tensile strength, respectively. Furthermore, on utilizing the outcomes of the material testing program – for a hypothetical cost analysis study related to a seven-storey building of 400 m2 footprint – a 3 % construction cost reduction is obtained; noting that significant energy savings are anticipated on using foamcrete for slab elements. 

DOI

10.21608/erj.2024.361367

Keywords

Foamed concrete, polypropylene fibers, Mechanical Properties, Compressive strength, tensile strength, Stress-strain, construction cost reduction

Authors

First Name

Mohamed

Last Name

Hassaan

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Affiliation

Ph.D Student, El Mataria Faculty of Engineering, Helwan University, Cairo, Egypt.

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First Name

Tarik

Last Name

Youssef

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Affiliation

Associative Professor of Structural Engineering, Faculty of Engineering, L’Université Française D'Égypte, Cairo, Egypt.

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First Name

Waleed

Last Name

Tawhed

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Affiliation

Associative Professor of Structural Engineering, Faculty of Engineering, Mataria, Helwan University, Cairo, Egypt.

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First Name

Gouda

Last Name

Ghanem

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Affiliation

Emeritus Professor of Properties and Testing of Materials, Faculty of Engineering, Mataria, Helwan University, Cairo, Egypt.

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Volume

182

Article Issue

2

Related Issue

48211

Issue Date

2024-06-01

Receive Date

2024-06-23

Publish Date

2024-06-01

Page Start

341

Page End

355

Print ISSN

1110-5615

Link

https://erj.journals.ekb.eg/article_361367.html

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https://erj.journals.ekb.eg/service?article_code=361367

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361,367

Type

Original Article

Type Code

998

Publication Type

Journal

Publication Title

Engineering Research Journal

Publication Link

https://erj.journals.ekb.eg/

MainTitle

STRENGTH ENHANCEMENT AND COST ANALYSIS FOR LIGHTWEIGHT FOAMED CONCRETE IN RESIDENTIAL BUILDINGS

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Article

Created At

24 Dec 2024