A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fly Ash-Based RAGPC Paver Blocks for Moderate Traffic Volume Roads
This study is imposed on the investigation of compatibility of paver blocks for moderate traffic volume roads (0.5–2.0 MSA) which are manufactured by the fly ash based geo-polymer concrete with the whole substitution of genuine aggregates by recycled aggregates (C and D waste). The class-F fly ash is used as a primary binder material and cement is completely eliminated in this concrete mixture. The alkali activator is a blend of sodium hydroxide (NaOH) gel and gel of sodium silicate (Na2SiO3) added to dry concrete materials for activating geo-polymerization process. The sodium hydroxide (NaOH) gel is formed with varying concentrations of molar of 8 M, 10 M, 12 M, and 14 M, respectively. The outline of concrete mix, casting, and testing is done as per the regular conventional concrete mix design. The casted molds were kept in room temperature for 24 h and next de-molded specimens were placed in elevated temperature for hot curing at 60 °C for another 24 h. The compression test, split tensile strength test, and flexural strength tests were conducted as per the IS codes for conventional concrete is followed. The test results of fly ash-based RAGPC paver blocks were shown good results of higher values greater than paver blocks made by conventional concrete. Thus, the blocks of paver casted by fly ash and recycled aggregate proved superior quality of regular blocks of paver, which is suitable for moderate traffic volume roads and also eco-friendly.
Fly Ash-Based RAGPC Paver Blocks for Moderate Traffic Volume Roads
This study is imposed on the investigation of compatibility of paver blocks for moderate traffic volume roads (0.5–2.0 MSA) which are manufactured by the fly ash based geo-polymer concrete with the whole substitution of genuine aggregates by recycled aggregates (C and D waste). The class-F fly ash is used as a primary binder material and cement is completely eliminated in this concrete mixture. The alkali activator is a blend of sodium hydroxide (NaOH) gel and gel of sodium silicate (Na2SiO3) added to dry concrete materials for activating geo-polymerization process. The sodium hydroxide (NaOH) gel is formed with varying concentrations of molar of 8 M, 10 M, 12 M, and 14 M, respectively. The outline of concrete mix, casting, and testing is done as per the regular conventional concrete mix design. The casted molds were kept in room temperature for 24 h and next de-molded specimens were placed in elevated temperature for hot curing at 60 °C for another 24 h. The compression test, split tensile strength test, and flexural strength tests were conducted as per the IS codes for conventional concrete is followed. The test results of fly ash-based RAGPC paver blocks were shown good results of higher values greater than paver blocks made by conventional concrete. Thus, the blocks of paver casted by fly ash and recycled aggregate proved superior quality of regular blocks of paver, which is suitable for moderate traffic volume roads and also eco-friendly.
Fly Ash-Based RAGPC Paver Blocks for Moderate Traffic Volume Roads
Lecture Notes in Civil Engineering
Sivakumar Babu, G. L. (editor) / Mulangi, Raviraj H. (editor) / Kolathayar, Sreevalsa (editor) / Supriya, C. B. (author) / Manjunath, B. H. (author) / Prakash, J. (author) / Sahana, T. S. (author)
International Conference on Sustainable Infrastructure: Innovation, Opportunities and Challenges ; 2023 ; Mangalore, India
2024-09-06
11 pages
Article/Chapter (Book)
Electronic Resource
English
Use of Recycled Materials to Build Paver Blocks for Low-Volume Roads in Developing Countries
| British Library Online Contents | 2011