Experimental Study on the Effect of Basalt Fiber and Sodium Alginate in Polymer Concrete Exposed to Elevated Temperature

Abstract

Polymer concrete contains aggregates and a polymeric binder such as epoxy, polyester, vinyl ester, or normal epoxy mixture. Since polymer binders in polymer concrete are made of organic materials, they have a very low heat and fire resistance compared to minerals. This paper investigates the effect of basalt fibers (BF) and alginate on the compressive strength of polymer concrete. An extensive literature review was completed, then two experimental phases including the preliminary phase to set the appropriate mix design, and the main phase to investigate the compressive strength of samples after exposure to elevated temperatures of 100 °C, 150 °C, and 180 °C were conducted. The addition of BF and/or alginate decreases concrete compressive strength under room temperature, but the addition of BF and alginate each alone leads to compressive strength increase during exposure to heat and increase in the temperature to 180 °C showed almost positive on the compressive strength. The addition of BF and alginate both together increases the rate of strength growth of polymer concrete under heat from 100 °C to 180 °C. In conclusion, BF and alginate decrease the compressive strength of polymer concretes under room temperature, but they improve the resistance against raised temperatures.

Temperature Impact on Engineered Cementitious Composite Containing Basalt Fibers

“…However, the chopped BFs do not have a uniform length and diameter as shown in Figure 1. It is normal to consider the average diameter and length of BFs that are introduced by the provided datasheet from the manufacturer [5,74,75]. The mechanical properties of the BFs supplied by the manufacturer are shown in Table 2.…”

Polymer/Carbon Fiber Co-modification: Dynamic Compressive Mechanical Properties of Carbon Fiber Modified Polymer Reinforced Concrete

“…Numerous studies have shown that adding fiber into polymer reinforced concrete can improve the strength of polymer reinforced concrete effectively, and increase its cost effectiveness as well (Wang et al 2020a(Wang et al , 2020bBediwy and El-Salakawy 2021;Lv and Zhang 2021). At the same time, the polymer can advance the bond performance between fiber and matrix effectively, thus further taking advantage of the fiber in concrete for composite modification effect (Zou and Sneed 2020;Mohammadyan et al 2021). But at present, there are still few studies on the impact resistance of fiber polymer composite modified concrete and the mechanism of fiber promoting the performance of polymer reinforced concrete as well as relevant reports (Guo et al 2020;Valarezo et al 2021;Xiong et al 2021b).…”

Special Issue on “Multifunctional Hybrid Materials Based on Polymers: Design and Performance”

“…In one of the articles published in this Special Issue, Mohammadyan-Yasouj et al investigated the effect of basalt fiber (BF) and sodium alginate addition on the compressive strength of polymer concrete. They found that BF and alginate can decrease the compressive strength of polymer concretes at room temperature, but they can also improve resistance against higher temperatures [6]. In another contribution, the same authors reviewed the effect of using nano-alumina (NA) to improve rheological, mechanical parameters, as well as the elevated temperature resistance of self-compacting concrete (SCC).…”