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Characteristics of Eco-Friendly Metakaolin Based Geopolymer Concrete Pavement Bricks | ||
| Engineering and Technology Journal | ||
| Article 13, Volume 38, 11A, 2020, Pages 1706-1716 PDF (1.17 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.30684/etj.v38i11A.1699 | ||
| Authors | ||
| Wasan Ismail Khalil1; Qias J. Frayyeh2; Mahmood F. Ahmed* 3 | ||
| 1Department of Civil Engineering, University of Technology | ||
| 2Asst. Prof, Civil Engineering Department, University of Technology, Baghdad, Iraq | ||
| 3Ph.D. candidate, Civil Engineering Department, University of Technology, Baghdad, Iraq, | ||
| Abstract | ||
| The purpose of this work is to investigate the possibility to recycled and reused of waste clay brick and waste plastic as constituents in the production of green Geopolymer concrete paving bricks. Powder of clay brick waste (WBP) was used as a partial replacement of Metakaolin (MK) in Geopolymer binder. Moreover, recycled clay brick waste aggregate (BA) and plastic waste aggregate (PL) were incorporated as coarse aggregate in mixtures of Metakaolin based Geopolymer concrete (MK-GPC) pavement bricks. Six types of mixtures were prepared and cast as pavement bricks with dimensions of 150×150×100 mm. All samples have been tested for compressive strength, water absorption and abrasion resistance at age of 28 days; and compared the results with the requirements of Iraqi specification No.1606-2006. The MK-GPC pavement bricks present a compressive strength of 31-47MPa, water absorption of 3.66% to5.32% and abrasion resistance with groove length between 21.78mm to 18.91 mm. These types of pavement bricks are classified as a medium to light capacity for weight loading, and it is possible to be used in wide range of paving applications, especially in aggressive wearing environment. | ||
| Keywords | ||
| Geopolymer concrete; Metakaolin; Pavement brick; sustainability; Waste clay brick; Waste Plastic | ||
| References | ||
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