Durability of materials based on a polymer-silicate matrix and a ligthweight aggregate exposed to aggressive influences combined with high temperatures

Durability of materials based on a polymer-silicate matrix and a ligthweight aggregate exposed to aggressive influences combined with high temperatures

WoS Article

The paper presents the results and findings of the research focused on an examination of progressive degradation of newly developed composite materials. These materials consisted of a polymer-silicate matrix and a mix of fillers with a considerable proportion of a porous aggregate. The matrix also contained a larger amount of alternative raw materials, in particular hightemperature fly ash and blast furnace slag. Prepared mixes were tested after different periods of exposure to an aggressive environment – for 45 d and 90 d (50 and 100 cycles). First, after 45 d and 90 d, reference materials (i.e., those not exposed to aggressive influences) were tested. In parallel, tests were carried out with materials exposed to a solution of chloride ions and subjected to cyclic freeze and thaw. The last mode of testing in this research included materials exposed to cyclic freeze and thaw, chloride-ion solution and the consequent thermal load of up to 1000 °C.

The paper presents the results and findings of the research focused on an examination of progressive degradation of newly developed composite materials. These materials consisted of a polymer-silicate matrix and a mix of fillers with a considerable proportion of a porous aggregate. The matrix also contained a larger amount of alternative raw materials, in particular hightemperature fly ash and blast furnace slag. Prepared mixes were tested after different periods of exposure to an aggressive environment – for 45 d and 90 d (50 and 100 cycles). First, after 45 d and 90 d, reference materials (i.e., those not exposed to aggressive influences) were tested. In parallel, tests were carried out with materials exposed to a solution of chloride ions and subjected to cyclic freeze and thaw. The last mode of testing in this research included materials exposed to cyclic freeze and thaw, chloride-ion solution and the consequent thermal load of up to 1000 °C.

durability, porous aggregate, polymer-silicate matrix, long-term eposure, chloride ions. frost, fire, microstructure

durability, porous aggregate, polymer-silicate matrix, long-term eposure, chloride ions. frost, fire, microstructure

MELICHAR, T.; BYDŽOVSKÝ, J.; DUFKA, A.

2018

24.10.2017

Institute of Metals and Technology, Ljubljana, Slovenia

Ljubljana, Slovenia

1580-2949

Materiali in Tehnologije

51 (2017)

5

Republic of Slovenia

751

758

8