Experimental investigation on annual changes in mechanical properties of structural concretes with various types of lightweight aggregates

Kwang Soo Youm, Yeon Jong Jeong, Erie Seong Ho Han, Tae Sup Yun

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This study presents the compiled experimental data of compressive strength and the modulus of elasticity for five different lightweight concretes cured up to 365 days and compares them with those for a normalweight concrete. Mechanical properties sharply increased during early stage approaching asymptotic values, depending on design strength codes. Various empirical relationships approximately represent the experimental data, with the different types of concrete exhibiting discrepancies within acceptable bounds. Results highlight that the time-dependent mechanical properties of concretes containing lightweight aggregates can be reasonably estimated using conventional empirical models, provided that values at 28 days of curing are accurately known. Relationship between measured strength and modulus provides the first approximations, corroborated by coinciding values from nondestructive testing. The evolution of density and the effect of curing conditions are also discussed. These experimental results demonstrate that the type of lightweight aggregate strongly influences the mechanical properties of concretes.

Original languageEnglish
Pages (from-to)442-451
Number of pages10
JournalConstruction and Building Materials
Volume73
DOIs
Publication statusPublished - 2014 Dec 30

Fingerprint

Concretes
Mechanical properties
Curing
Nondestructive examination
Compressive strength
Elastic moduli

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

@article{2ae394184cf843f994064e8d6fd6710a,
title = "Experimental investigation on annual changes in mechanical properties of structural concretes with various types of lightweight aggregates",
abstract = "This study presents the compiled experimental data of compressive strength and the modulus of elasticity for five different lightweight concretes cured up to 365 days and compares them with those for a normalweight concrete. Mechanical properties sharply increased during early stage approaching asymptotic values, depending on design strength codes. Various empirical relationships approximately represent the experimental data, with the different types of concrete exhibiting discrepancies within acceptable bounds. Results highlight that the time-dependent mechanical properties of concretes containing lightweight aggregates can be reasonably estimated using conventional empirical models, provided that values at 28 days of curing are accurately known. Relationship between measured strength and modulus provides the first approximations, corroborated by coinciding values from nondestructive testing. The evolution of density and the effect of curing conditions are also discussed. These experimental results demonstrate that the type of lightweight aggregate strongly influences the mechanical properties of concretes.",
author = "Youm, {Kwang Soo} and Jeong, {Yeon Jong} and Han, {Erie Seong Ho} and Yun, {Tae Sup}",
year = "2014",
month = "12",
day = "30",
doi = "10.1016/j.conbuildmat.2014.09.044",
language = "English",
volume = "73",
pages = "442--451",
journal = "Construction and Building Materials",
issn = "0950-0618",
publisher = "Elsevier Limited",

}

Experimental investigation on annual changes in mechanical properties of structural concretes with various types of lightweight aggregates. / Youm, Kwang Soo; Jeong, Yeon Jong; Han, Erie Seong Ho; Yun, Tae Sup.

In: Construction and Building Materials, Vol. 73, 30.12.2014, p. 442-451.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental investigation on annual changes in mechanical properties of structural concretes with various types of lightweight aggregates

AU - Youm, Kwang Soo

AU - Jeong, Yeon Jong

AU - Han, Erie Seong Ho

AU - Yun, Tae Sup

PY - 2014/12/30

Y1 - 2014/12/30

N2 - This study presents the compiled experimental data of compressive strength and the modulus of elasticity for five different lightweight concretes cured up to 365 days and compares them with those for a normalweight concrete. Mechanical properties sharply increased during early stage approaching asymptotic values, depending on design strength codes. Various empirical relationships approximately represent the experimental data, with the different types of concrete exhibiting discrepancies within acceptable bounds. Results highlight that the time-dependent mechanical properties of concretes containing lightweight aggregates can be reasonably estimated using conventional empirical models, provided that values at 28 days of curing are accurately known. Relationship between measured strength and modulus provides the first approximations, corroborated by coinciding values from nondestructive testing. The evolution of density and the effect of curing conditions are also discussed. These experimental results demonstrate that the type of lightweight aggregate strongly influences the mechanical properties of concretes.

AB - This study presents the compiled experimental data of compressive strength and the modulus of elasticity for five different lightweight concretes cured up to 365 days and compares them with those for a normalweight concrete. Mechanical properties sharply increased during early stage approaching asymptotic values, depending on design strength codes. Various empirical relationships approximately represent the experimental data, with the different types of concrete exhibiting discrepancies within acceptable bounds. Results highlight that the time-dependent mechanical properties of concretes containing lightweight aggregates can be reasonably estimated using conventional empirical models, provided that values at 28 days of curing are accurately known. Relationship between measured strength and modulus provides the first approximations, corroborated by coinciding values from nondestructive testing. The evolution of density and the effect of curing conditions are also discussed. These experimental results demonstrate that the type of lightweight aggregate strongly influences the mechanical properties of concretes.

UR - http://www.scopus.com/inward/record.url?scp=84908461944&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84908461944&partnerID=8YFLogxK

U2 - 10.1016/j.conbuildmat.2014.09.044

DO - 10.1016/j.conbuildmat.2014.09.044

M3 - Article

VL - 73

SP - 442

EP - 451

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -