Detail publikace

An integrated measuring system for analyzing the deformation characteristics and thermal reactions of self-setting sands

BURIANOVÁ, K. RUSÍN, K.

Originální název

An integrated measuring system for analyzing the deformation characteristics and thermal reactions of self-setting sands

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Possibilities of use hydraulically solidifying binders based on aluminous and Portland cements with different hardening accelerators and organic additives, plasticizers in particular, are advantageous. The binder system is simple, handling is easy, mixtures are well compactable, rapidly hardening, without considerable interactions with liquid metal with low gas development, they are well collapsible and easy reclaimable. From the point of view of ecology they are excellent ones. As a substitution for organic phenol/furan mixtures for manufacture of moulds and cores for heavy castings the cement mixtures are evaluated positively. In spite of it one property necessary for this technology is lacking and namely plasticity in initial period of hardening. This physical property of cement composites has not been solved up to now and it is very important when comparing it with phenol/furan systems. The LRU-D integrated measuring system controlled with the LabVIEW 8.6 program has been compiled in collaboration with the Physical Institute and it consists of a master computer, the LRU-D strength tester, the Mitutoyo detector of sample straining and an isoperibolic calorimeter compiled in collaboration with the Material Chemistry Institute. The system enables automatic reading of compression strength values of standard samples of the mixture under constant load rate and graphical recording of sample deformation in real time. From the measured values the modulus of deformation of the given mixture is calculated which is a characteristic of its plasticity. By digitalization of the LRU-D strength tester with the Mitutoyo detector of deformations and the isoperibolic calorimeter and due to the connection with the master computer a device has been formed that favourably completes the moulding mixture laboratory with new possibilities of evaluating the properties of self-setting mixtures based on furan, cement and sodium silicates.

Klíčová slova

cement mixtures, furan mixtures, mixtures with water-glass, plasticity, calorimetry

Autoři

BURIANOVÁ, K.; RUSÍN, K.

Rok RIV

2010

Vydáno

8. 9. 2010

Nakladatel

Društvo livarjev Slovenije

Místo

Ljubljana

ISBN

978-961-90130-4-5

Kniha

Conference proceedings

Strany od

25

Strany do

32

Strany počet

8

BibTex

@inproceedings{BUT35455,
  author="Klára {Burianová} and Karel {Rusín}",
  title="An integrated measuring system for analyzing the deformation characteristics and thermal reactions of self-setting sands",
  booktitle="Conference proceedings",
  year="2010",
  pages="25--32",
  publisher="Društvo livarjev Slovenije",
  address="Ljubljana",
  isbn="978-961-90130-4-5"
}