Study of the Resistance to Influence of Aggressive Liquids on Concrete with Lightweight Aggregate | Chapter 3 | Recent Trends in Chemical and Material Sciences Vol. 9

One of the key issues that might lessen a building's longevity is the corrosive exterior environment's effect on the concrete construction. The article examines the effects of component type on a few characteristics of lightweight concrete (LWC) that have been subjected to hostile liquids. When using lightweight concrete with porous aggregates, consideration should be given to the impact of a hostile environment. The publication contains the findings of testing on four light concretes that were subjected to hostile liquids and had varying water-cement ratios and compositions. Granulated expanded glass aggregate (GEGA) and granulated sintered ash aggregate (GAA) were used to create the concrete mixes, along with the mineral ingredient silica fly ash. LWC specimens underwent a year of in-lab curing before being exposed to hostile liquids for 60 days. Strong acid—HCl, at 1% and 2% concentrations; weak acid—CH3COOH, at 1% and 2% concentrations; and an aqueous salt solution of Na2SO4, at 1% and 2% concentrations—were the different conditions. After that, the structure was studied, and the impact of aggressive liquids on the LWC's compressive strength was looked at. Additionally, the weight of samples of lightweight concrete after corrosion was calculated. The test technique may be used to estimate the impact of aggressive liquids on the LWC more quickly, according to the findings of the test. LWC has strong resistance to hostile liquids when combined with GEGA and GAA aggregates. The research findings also show that HCl solution was the most aggressive, whilst Na2SO4 was the least aggressive. The rate of corrosion advancement increased with the destructive factor concentration. Concretes with aggregates consisting of sintered fly ash and foamed glass can be used in both conventional construction and in buildings with harsh environments.

Author(s) Details:

Marzena Kurpinska,

Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.

Elzbieta Haustein,

Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.

Filip Kurpinski,

Faculty of Electrical and Control Engineering, Gdansk University of Technology, Narutowicza St. 11/12, 80-233 Gdansk, Poland.

Please see the link here: https://stm.bookpi.org/RTCAMS-V9/article/view/7376