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w n u u u g e 4 c o o p s a y 1 × o Recycling 2021, 6, 18 integrity under severe use. The mold nonabsorbent material avoids a reaction land or other hydraulic cement. For each test, two samples were used for eac HDPE lamellar particles. Accordingly, the number of samples used for the splitti and cylindrical compressive strength tests was six. The total number of samples 8 of 19 We set a higher water/cement ratio to produce a workable concrete (minim Typically, the minimum water/cement ratio is 0.35–0.4, as a lower ratio may res concrete becoming too dry and unworkable [37]. Furthermore, the use of a hi ter/cement ratio results in a high slump value. However, the addition of HDP sheets compensated for this change. To evaluate the effect of adding HDPE lam ticles, several tests were conducted, including slump testing using the ASTM C1 ard [38], compressive strength testing using the ASTM C39 standard [39], an strength testing using the ASTM C496 standard [40]. 3. The Results Recycling 2021, 6, x FOR PEER REVIEW 156, including those for normal concrete testing. Since only two specimens were each design, the data were processed as average. Figure 3. Preparation of concrete cylinder specimen. Figure 3. Preparation of concrete cylinder specimen. This study conducted tests to examine the appropriate concrete mixtures in 3i.nTgheHRDesPuEltslamellar particles for non-structural applications to determine the HDTPhEisstiuzdeyacnondduacdtedditieostnsstooenxamloiwne-tqhueapliptyropcroiantcerceotnec,remteemdiixutumre-sqiuncaolriptyoractoingcrete, a HDPE lamellar particles for non-structural applications to determine the effect of HDPE quality concrete can be explained as follows. size and additions on low-quality concrete, medium-quality concrete, and high-quality concrete can be explained as follows. 3.1. Concrete Slump Test 3.1. Concrete Slump Test Concrete workability is quantified by the concrete slump, which depends Concrete workability is quantified by the concrete slump, which depends on many factors, e.g., mixing methods, concrete materials and admixtures, and the w factors, e.g., mixing methods, concrete materials and admixtures, and the workability changes with time due to those factors. In this slump test, the preparation of s changes with time due to those factors. In this slump test, the preparation of specimens using the mold (slump cone) is shown in Figure 4, and the varying HDPE lamel using the mold (slump cone) is shown in Figure 4, and the varying HDPE lamellar particles wceleresawddeerdetaodthdefdretsoh tchonecfrreeteshbecfornectersettiengb.efore testing. Figure 4. Preparation of B0 concrete for the slump test. Figure 4. Preparation of B0 concrete for the slump test. We set the slump value for normal concrete (baseline) to 115–125 mm. As shown in We set the slump value for normal concrete (baseline) to 115–125 mm. As Figure 5, a greater amount of HDPE to the concrete mix led to a smaller slump value. The Figure 5, a greater amount of HDPE to the concrete mix led to a smaller slump v slump value of B0 concrete (Figure 5a) with HDPE size at 10 × 10 mm declined by 10% foslru2m0%pHvDaPluEelaomfeBll0arcaodndcitrieotne(a(Fcciogunrted5afr)owmi1t2h0HmDmPoEf nsoirzmeaaltco1n0cr×et1e0tom1m10 dmemc)l.ined b The lowest percentage reduction at slump value showed up in f’c10 with HDPE size 10 × 20% HDPE lamellar addition (accounted from 120 mm of normal concrete to 10 mm (Figure 5b), and the maximum value given by f’c25 with HDPE size 2.5 × 40 mm, at The lowest percentage reduction at slump value showed up in f’c10 with HDPE 16.7% (Figure 5c). We found, from all the samples used, the maximum value of reduction 10 mm (Figure 5b), and the maximum value given by f’c25 with HDPE size 2.5 ranged from 5 to 20 mm compared to the standard value. at 16.7% (Figure 5c). We found, from all the samples used, the maximum value tion ranged from 5 to 20 mm compared to the standard value.PDF Image | Recycled HDPE Plastic Additions on Concrete Performance
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