Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete

The development and research of a new formulation of concrete integrating natural resources such as sands (from dunes and/or quarries) as well as waste from steel factories in the form of granulated slag from blast furnaces lead to the development of new sand concretes for which the improvement of s...

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Main Authors: Saloua Melais, Meriem Fakhreddine Bouali, Ahmed Melaikia, Amine Amirat
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2021-04-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:https://www.fracturae.com/index.php/fis/article/view/3038/3212
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author Saloua Melais
Meriem Fakhreddine Bouali
Ahmed Melaikia
Amine Amirat
author_facet Saloua Melais
Meriem Fakhreddine Bouali
Ahmed Melaikia
Amine Amirat
author_sort Saloua Melais
collection DOAJ
description The development and research of a new formulation of concrete integrating natural resources such as sands (from dunes and/or quarries) as well as waste from steel factories in the form of granulated slag from blast furnaces lead to the development of new sand concretes for which the improvement of specific properties will lead to a search for an agreement between production cost and performance. The objective of this research is to study the influence of the dosage of the size of the largest aggregate on the workability of sand concretes as well as on the compressive strength at 7 days, 14 days and 28 days. Five types of concrete are made by substituting aggregates (dune sand and quarry sand) with each other and with different percentages (100%, 75%, 50%, 25% and 0%). The results show that the workability of fresh concrete is considerably influenced by the nature of the sand; the richer the sand in coarse elements, the fineness modulus increases and the more handling improves. In the hardened state, the results show that optimization of the compressive strength is achieved when a good homogeneity of the concrete is achieved and when a large percentage of coarse sand is mixed with a small percentage of fine sand.
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series Fracture and Structural Integrity
spelling doaj-art-a84f83a5fa3543b0a69d506c38e28b552025-01-02T23:00:55ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932021-04-01155615115910.3221/IGF-ESIS.56.1210.3221/IGF-ESIS.56.12Effects of coarse sand dosage on the physic-mechanical behavior of sand concreteSaloua MelaisMeriem Fakhreddine BoualiAhmed MelaikiaAmine AmiratThe development and research of a new formulation of concrete integrating natural resources such as sands (from dunes and/or quarries) as well as waste from steel factories in the form of granulated slag from blast furnaces lead to the development of new sand concretes for which the improvement of specific properties will lead to a search for an agreement between production cost and performance. The objective of this research is to study the influence of the dosage of the size of the largest aggregate on the workability of sand concretes as well as on the compressive strength at 7 days, 14 days and 28 days. Five types of concrete are made by substituting aggregates (dune sand and quarry sand) with each other and with different percentages (100%, 75%, 50%, 25% and 0%). The results show that the workability of fresh concrete is considerably influenced by the nature of the sand; the richer the sand in coarse elements, the fineness modulus increases and the more handling improves. In the hardened state, the results show that optimization of the compressive strength is achieved when a good homogeneity of the concrete is achieved and when a large percentage of coarse sand is mixed with a small percentage of fine sand.https://www.fracturae.com/index.php/fis/article/view/3038/3212sand concreteextended granularworkabilitymechanical behavior
spellingShingle Saloua Melais
Meriem Fakhreddine Bouali
Ahmed Melaikia
Amine Amirat
Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete
Fracture and Structural Integrity
sand concrete
extended granular
workability
mechanical behavior
title Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete
title_full Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete
title_fullStr Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete
title_full_unstemmed Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete
title_short Effects of coarse sand dosage on the physic-mechanical behavior of sand concrete
title_sort effects of coarse sand dosage on the physic mechanical behavior of sand concrete
topic sand concrete
extended granular
workability
mechanical behavior
url https://www.fracturae.com/index.php/fis/article/view/3038/3212
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