Optimizing Mix Proportion of Lightweight Concrete Containing Plastic Waste by Taguchi Method

Abstract

In this study, mix proportion parameters of lightweight concrete (LWC) containing ethyl vinyl acetate (EVA) plastic waste from footwear manufacture were investigated by employing Taguchis method and ANOVA statistics. The mixtures were designed in a L9 orthogonal array with four factors viz., water/cement, water content, EVA content and sand/cement. The results showed that EVA content and water/cement ratio had the significant effect on density and compressive strength of LWC. The density and compressive strength of the LWC containing EVA waste ranged from 1172 to 1441 kg/m3 and from 3.5 to 10.8 MPa, respectively. It can be concluded that the obtained LWC can be classified as masonry concrete. The best possible levels for mix proportions were determined to optimize density and compressive strength of the samples.

Properties of Light Weight Concrete Containing Crumb Rubber Subjected to High Temperature

“…The board band in range of 3399 cm-1 and 3637 cm-1 were attributed to O-H. After exposed at 800 °C, the change of cement paste structure was observed as shown in Figure 5 Figure 6 shows the characteristic of rubber crumb. The C-O was observed at 1415 cm − 1 [20]. The broad band in range of 3350-3550 cm −1 was assigned to O-H group of aromatic [21].…”

“…Figure6shows the characteristic of rubber crumb. The C-O was observed at 1415 cm − 1[20]. The broad band in range of 3350-3550 cm −1 was assigned to O-H group of aromatic[21].…”

Characterization of Lightweight Concrete Produced from Plastics Waste - Polystyrene and EVA

“…EVA foam is used as padding in equipment for various sports such as ski boots, hockey, boxing, and mixed martial arts [15,16]. Researchers [17] found that EVA waste content and water/cement ratio were the most important mix proportion parameters of lightweight concrete containing EVA waste that affected density and compressive strength of lightweight concrete. The addition of plastic waste reduces the mechanical property and density of concrete due to lower strength and higher porosity of plastic aggregates [18,19].…”