Publication detail

Optimization of mix-design of chemically resistant sprayed concrete

HERMANN, R. KOLÍSKO, J. DROCHYTKA, R. REITERMAN, P.

Original Title

Optimization of mix-design of chemically resistant sprayed concrete

Type

conference paper

Language

English

Original Abstract

This paper addresses optimization of mix-design and granulometric curves of aggregate of chemically resistant sprayed mix based on cement binder. The target of the paper is improvement of properties of currently developed mix-design, which has no chemical resistance. The second target is use of secondary raw materials to reduce economic demands of manufacture of this mix. The mix was optimized by additions improving chemical resistance and binder substituted by secondary raw materials. The binder was substituted by finely ground waste glass and high-temperature fly ash. Binder was substituted with slag from deposit yard and waste soluble glass from steel manufacture. Main observed properties for design of optimized mix were workability time, consistence and physical-mechanical properties. Test specimens were subjected to testing of water absorbing capacity as potential indicator of chemical resistance. Optimized mix-design successfully replaced all fine parts of filler and up to 30% of binder while the physical-mechanical properties were preserved or even enhanced. Optimized mix-designs show the same consistencies and workability times. The outcome of this paper is sprayed mix with optimized mix-design with high density, excellent physicalmechanical properties and low water absorbing capacity. Its properties predetermine the mix-design to use in conditions with demanding exposition.

Keywords

sprayed mix, optimization, secondary raw materials, water absorbing capacity, granulometric curve

Authors

HERMANN, R.; KOLÍSKO, J.; DROCHYTKA, R.; REITERMAN, P.

Released

25. 7. 2019

Publisher

Czech Technical University in Prague

Location

Praha

ISBN

2336-5382

Periodical

Acta Polytechnica CTU Proceedings

Number

22

State

Czech Republic

Pages from

26

Pages to

30

Pages count

5

URL

https://ojs.cvut.cz/ojs/index.php/APP/article/view/5646

BibTex

@inproceedings{BUT155575,
  author="Radek {Hermann} and Jiří {Kolísko} and Rostislav {Drochytka} and Pavel {Reiterman}",
  title="Optimization of mix-design of chemically resistant sprayed concrete",
  booktitle="SPECIAL CONCRETE AND COMPOSITES 2018",
  year="2019",
  journal="Acta Polytechnica CTU Proceedings",
  number="22",
  pages="26--30",
  publisher="Czech Technical University in Prague",
  address="Praha",
  doi="10.14311/APP.2019.22.0026",
  issn="2336-5382",
  url="https://ojs.cvut.cz/ojs/index.php/APP/article/view/5646"
}