Research Institute of Building Materials, research, development, production, realization and consultancy in sphere of building materials

Composite materials

Traditional and nontraditional technologies

Design of new technological processes of building materials production and their simulation in laboratory and pilot plant conditions
Traditional and non-traditional processing technologies:
- pelletizing, granulation
- compacting
- extrusion
- application of economical thermal processes etc.
Fibre concrete production by extrusion
Quality assessment of building works, defects, etc.

Firing processes, ceramics

Modelling tests of firing processes of brick raw materials, sintered aggregate etc.
Assessment of natural and secondary raw materials suitability for heavy ceramics production
Design of optimal technologies

Dry plaster mixtures

Design of production prescriptions of dry plaster mixtures with special properties
Verification of prescriptions

Metakaolin

Metakaolin preparation also from less quality kaolines and clays
Determination of properties and applications of metakaolin
Metakaolin as an addition for cement pastes, concretes and other special applications
Alkali activation of metakaolin, etc.

Utilization of secondary raw materials

Slag
Fly ash
Less suitable clays, kaolins, bentonites, sands, etc.

Verification of admixtures and additives and their nontraditional utilization

Metakaolin, slag, fly ash, etc.
Plasticizers
Setting stabilizators
Watertight and hydrophobization admixtures, etc.

UNICRET

Development and design of production mixtures of glass-fibre-reinforced elements (commercial product name UNICRET) according to designated utility properties and given assortment
Determination of technological process
- for shot-technologies, Premix, Premix with hybrid reinforcement
- for individual types of products
Testing and evaluation of durability with accelerated tests simulating dominant factors of individual seasons

UNITHERMEX

Development of a new material for anorganic nonasbestine constructionally-insulating materials (commercial product name UNITHERMEX), which are resistant to permanent heat stress
Variability of materials – development of composition of mentioned materials in dependence on degree of heat stress, UNITHERMEX type A, type C, type HT, type G, type W, type P
Characterization of products:
- low volume changes by heat stress up to 600 °C, in the short term also up to 800 °C
- resistance to temperature shocks
- tenacity
- resistance to wear
- very good cohesion
- possibility of shaped or slab products production according to requirements of the customer
- possibility of workability by cutting, sanding, turning, drilling to required accurate dimensions according to requirements of the customer
Special properties – on contact with glass arise neither scratching of surface nor formation of sticked mass
Possiblities of use:
- replacement of asbestos materials
- as a part of molten glass moulding>
- for thermal adjustment and manipulation of glass products in glassworks
- thermally stressed parts of devices in the consumer industry

Cooperation with industry

ČDZ Praha, a.s., Černousy plant – innovation of fibre cement products
Kotouč Štramberk, s.r.o. – new possibilities of blast furnace slag utilization

Contacts

Head of section Composite materials
Ing. Radek Holešinský
mobile: +420 602 114 493
phone: +420 543 529 271, 274
e-mail: holesinsky@vustah.cz

Assistant of head of section Composite materials
Ing. Michal Frank
phone: +420 543 529 271
e-mail: frank@vustah.cz

Head of Technological laboratory of composite materials
Ing. Jaroslava Hochmanová
phone: +420 543 529 319
e-mail: jancova@vustah.cz