Detail publikace

The porous aggregate pre-soaking in relation to the freeze–thaw resistance of lightweight aggregate concrete

KUCHARCZYKOVÁ, B. KERŠNER, Z. POSPÍCHAL, O. MISÁK, P. DANĚK, P. SCHMID, P.

Originální název

The porous aggregate pre-soaking in relation to the freeze–thaw resistance of lightweight aggregate concrete

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The results of an investigation into the influence of porous aggregate pre-soaking on the freeze–thaw resistance of lightweight concrete are presented. Three concrete mixtures were prepared, differing in the degree of porous aggregate saturation: LC1 (oven dried aggregate), LC2 (aggregate with a moisture of 13 %) and LC3 (30 % pre-soaked aggregate). The basic physico-mechanical and fracture characteristics of the manufactured concrete at the ages of 28 and 90 days were also determined. Non-destructive methods were used for the determination of specimen degradation after every 25 cycles. The experiments were completed via the carrying out of destructive tests in order to determine the static modulus of elasticity, fracture and strength parameters. Experiments showed that non-destructive methods are insufficient for the description of the total rate of damage to internal structure. The fracture and strength tests appeared to be more sensitive to micro-cracks identification. Also the tests of re-saturation helped to identify damages of the lightweight concrete structure. Obtained results showed that the concrete prepared from the oven dried aggregate is most resistant to the cyclical freezing and thawing.

Klíčová slova

Lightweight concrete; freeze–thaw test; fracture parameters; splitting tensile strength; modulus of elasticity; non-destructive testing; porous aggregate; durability.

Autoři

KUCHARCZYKOVÁ, B.; KERŠNER, Z.; POSPÍCHAL, O.; MISÁK, P.; DANĚK, P.; SCHMID, P.

Rok RIV

2012

Vydáno

18. 1. 2012

Nakladatel

Elsevier Ltd.

Místo

Spojené království Velké Británie a Severního Irska

ISSN

0950-0618

Periodikum

Construction and building materials

Ročník

25

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

761

Strany do

766

Strany počet

6

BibTex

@article{BUT74889,
  author="Barbara {Kucharczyková} and Zbyněk {Keršner} and Ondřej {Pospíchal} and Petr {Misák} and Petr {Daněk} and Pavel {Schmid}",
  title="The porous aggregate pre-soaking in relation to the freeze–thaw resistance of lightweight aggregate concrete",
  journal="Construction and building materials",
  year="2012",
  volume="25",
  number="1",
  pages="761--766",
  issn="0950-0618"
}