Effect of very fine aggregate on concrete strength

Anna Kronlöf

Research output: Contribution to journalArticleScientificpeer-review

36 Citations (Scopus)

Abstract

The effect of very fine aggregate on the water requirement and strength evolution of superplasticized concrete was studied. The maximum aggregate size was 6 mm, fine aggregate content 0–15% of the total aggregate, binder (OPC and silica) content 80–800 kg m−3, and specific surface area of the finest aggregate material 18–1000 m2 kg−1. The water requirement for constant workability fell sharply with increasing amount and fineness of the very fine aggregate due to improved particle packing. At constant, relatively small binder contents of 80–250 kg m−3, modifying the aggregate distribution increased the 91-day strength of 6 mm concrete as much as threefold, e.g. from 20 to 65 MPa at 200 kg m−3. This effect was less significant the greater the binder content. The correlation between strength and porosity was similar regardless of concrete composition. The stress-strain behaviour was more dependent on strength than on composition.
Original languageEnglish
Pages (from-to)15-25
Number of pages11
JournalMaterials and Structures
Volume27
Issue number1
DOIs
Publication statusPublished - 1994
MoE publication typeA1 Journal article-refereed

Fingerprint

Concretes
Binders
Water
Chemical analysis
Specific surface area
Silicon Dioxide
Porosity
Silica

Cite this

Kronlöf, Anna. / Effect of very fine aggregate on concrete strength. In: Materials and Structures. 1994 ; Vol. 27, No. 1. pp. 15-25.
@article{640d5ce9aa7e427db6527d81465ccfb4,
title = "Effect of very fine aggregate on concrete strength",
abstract = "The effect of very fine aggregate on the water requirement and strength evolution of superplasticized concrete was studied. The maximum aggregate size was 6 mm, fine aggregate content 0–15{\%} of the total aggregate, binder (OPC and silica) content 80–800 kg m−3, and specific surface area of the finest aggregate material 18–1000 m2 kg−1. The water requirement for constant workability fell sharply with increasing amount and fineness of the very fine aggregate due to improved particle packing. At constant, relatively small binder contents of 80–250 kg m−3, modifying the aggregate distribution increased the 91-day strength of 6 mm concrete as much as threefold, e.g. from 20 to 65 MPa at 200 kg m−3. This effect was less significant the greater the binder content. The correlation between strength and porosity was similar regardless of concrete composition. The stress-strain behaviour was more dependent on strength than on composition.",
author = "Anna Kronl{\"o}f",
note = "Project code: RAM3014",
year = "1994",
doi = "10.1007/BF02472816",
language = "English",
volume = "27",
pages = "15--25",
journal = "Materials and Structures",
issn = "1359-5997",
publisher = "Springer",
number = "1",

}

Effect of very fine aggregate on concrete strength. / Kronlöf, Anna.

In: Materials and Structures, Vol. 27, No. 1, 1994, p. 15-25.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effect of very fine aggregate on concrete strength

AU - Kronlöf, Anna

N1 - Project code: RAM3014

PY - 1994

Y1 - 1994

N2 - The effect of very fine aggregate on the water requirement and strength evolution of superplasticized concrete was studied. The maximum aggregate size was 6 mm, fine aggregate content 0–15% of the total aggregate, binder (OPC and silica) content 80–800 kg m−3, and specific surface area of the finest aggregate material 18–1000 m2 kg−1. The water requirement for constant workability fell sharply with increasing amount and fineness of the very fine aggregate due to improved particle packing. At constant, relatively small binder contents of 80–250 kg m−3, modifying the aggregate distribution increased the 91-day strength of 6 mm concrete as much as threefold, e.g. from 20 to 65 MPa at 200 kg m−3. This effect was less significant the greater the binder content. The correlation between strength and porosity was similar regardless of concrete composition. The stress-strain behaviour was more dependent on strength than on composition.

AB - The effect of very fine aggregate on the water requirement and strength evolution of superplasticized concrete was studied. The maximum aggregate size was 6 mm, fine aggregate content 0–15% of the total aggregate, binder (OPC and silica) content 80–800 kg m−3, and specific surface area of the finest aggregate material 18–1000 m2 kg−1. The water requirement for constant workability fell sharply with increasing amount and fineness of the very fine aggregate due to improved particle packing. At constant, relatively small binder contents of 80–250 kg m−3, modifying the aggregate distribution increased the 91-day strength of 6 mm concrete as much as threefold, e.g. from 20 to 65 MPa at 200 kg m−3. This effect was less significant the greater the binder content. The correlation between strength and porosity was similar regardless of concrete composition. The stress-strain behaviour was more dependent on strength than on composition.

U2 - 10.1007/BF02472816

DO - 10.1007/BF02472816

M3 - Article

VL - 27

SP - 15

EP - 25

JO - Materials and Structures

JF - Materials and Structures

SN - 1359-5997

IS - 1

ER -