Detail publikace

DURABILITY OF CONCRETE MADE FROM RECYCLED AGGREGATES

Originální název

DURABILITY OF CONCRETE MADE FROM RECYCLED AGGREGATES

Anglický název

DURABILITY OF CONCRETE MADE FROM RECYCLED AGGREGATES

Jazyk

en

Originální abstrakt

This study describes findings of monitoring concerning the sulphate/acid resistance of concrete made from various volumes of fine/coarse recycled concrete aggregates. Corroding medium used: Na2SO4 concentrated solution to 10,000 mg/l, or diluted HCl with pH 3 in some cases. Test samples have been exposed to this medium for a period of 18 months. Natural aggregates have been replaced with recycled concrete ones in various proportions; monitoring findings show that there are concretes resistant to sulphate/acid aggressive environment as follows: (i) reference concrete (etalon); (ii) concrete made from fine (100 % natural) aggregate and coarse aggregate (50 % natural, 50 % recycled aggregate); (iii) concrete made from fine (100 % natural) aggregate and coarse aggregate (100 % recycled aggregate); (iv) concrete made from fine (50 % natural, 50 % recycled aggregate) aggregate and coarse aggregate (100 % natural). Parameters of other concretes under monitoring hit their maximum levels after 6 to 12 months of exposure being followed by a subsequent decrease; that is why they are not resistant to said aggressive environment

Anglický abstrakt

This study describes findings of monitoring concerning the sulphate/acid resistance of concrete made from various volumes of fine/coarse recycled concrete aggregates. Corroding medium used: Na2SO4 concentrated solution to 10,000 mg/l, or diluted HCl with pH 3 in some cases. Test samples have been exposed to this medium for a period of 18 months. Natural aggregates have been replaced with recycled concrete ones in various proportions; monitoring findings show that there are concretes resistant to sulphate/acid aggressive environment as follows: (i) reference concrete (etalon); (ii) concrete made from fine (100 % natural) aggregate and coarse aggregate (50 % natural, 50 % recycled aggregate); (iii) concrete made from fine (100 % natural) aggregate and coarse aggregate (100 % recycled aggregate); (iv) concrete made from fine (50 % natural, 50 % recycled aggregate) aggregate and coarse aggregate (100 % natural). Parameters of other concretes under monitoring hit their maximum levels after 6 to 12 months of exposure being followed by a subsequent decrease; that is why they are not resistant to said aggressive environment

BibTex


@inproceedings{BUT19224,
  author="Jiří {Brožovský} and Jiří {Zach} and Jiří {Brožovský}",
  title="DURABILITY OF CONCRETE MADE FROM RECYCLED AGGREGATES",
  annote="This study describes findings of monitoring concerning the sulphate/acid resistance of concrete made from various volumes of fine/coarse recycled concrete aggregates. Corroding medium used: Na2SO4 concentrated solution to 10,000 mg/l, or diluted HCl with pH 3 in some cases. Test samples have been exposed to this medium for a period of 18 months. Natural aggregates have been replaced with recycled concrete ones in various proportions; monitoring findings show that there are concretes resistant to sulphate/acid aggressive environment as follows: (i) reference concrete (etalon); (ii) concrete made from fine (100 % natural) aggregate and coarse aggregate (50 % natural, 50 % recycled aggregate); (iii) concrete made from fine (100 % natural) aggregate and coarse aggregate (100 % recycled aggregate); (iv) concrete made from fine (50 % natural, 50 % recycled aggregate) aggregate and coarse aggregate (100 % natural). Parameters of other concretes under monitoring hit their maximum levels after 6 to 12 months of exposure being followed by a subsequent decrease; that is why they are not resistant to said aggressive environment",
  address="Technion - Israel Institut of Technology, Haifa, Israel, RILEM Publicacions S.A.-R.L.,",
  booktitle="International RILEM - JCI Seminar on Concrete Durability and Service Life Planning ConceteLife06,",
  chapter="19224",
  edition="1",
  institution="Technion - Israel Institut of Technology, Haifa, Israel, RILEM Publicacions S.A.-R.L.,",
  journal="Nezařazené články",
  year="2006",
  month="march",
  pages="436--443",
  publisher="Technion - Israel Institut of Technology, Haifa, Israel, RILEM Publicacions S.A.-R.L.,",
  type="conference paper"
}