Open Access
Jotesh Gupta,
Vanita Aggarwal,
- Ph.D Research Scholar Civil Engineering Department, M.M Engineering College, MM(DU), Mullana, Ambala Haryana India
- Professor Civil Engineering Department, M.M Engineering College, MM(DU), Mullana, Ambala Haryana India
Abstract
Production of geopolymer composites, an inventive and environmentally friendly substitute for regular Portland cement concrete, involves the polymerization of several industrial waste materials, including fly ash, powdered granulated blast furnace slag, silica fume, and rice husk ash, using solutions that are very alkaline. Because this technique removes the requirement for calcination, which is a significant contributor of CO2 emissions during the manufacturing of OPC, GPC is more ecologically friendly. Alkaline activator solutions and alumino-silicate source materials are the essential components that start the geo-polymerization process and provide a binder that can bind aggregates. GPC offers advantages like higher compressive strength, improved durability, and resistance to chemical attacks compared to OPC concrete. The compressive strength results showed that for M40 grade under normal curing, the nominal OPC mix achieved48.94 MPa at 28 days, while 100% replacements with GGBS, silica fume, fly ash, and rice husk ash achieved lower strengths of 18.11, 16.86, 10.23, and 8.03 MPa, respectively. Under heat curing, these values increased, with GGBS exhibiting 21.01 MPa. For M50 grade, the nominal OPC mix attained 54.14 MPa under normal curing and 59.27 MPa under heat curing. The 100% GGBS, silica fume, fly ash, and rice husk ash mixes achieved lower strengths under both curing regimes. The maximum 28-day strength of 41.3 MPa under normal curing and 45.54 MPa under heat curing was reached by the GGBS mix when 40% additional materials were added to 60% OPC for M40. This was followed by mixes including silica fume, fly ash, and rice husk ash. Comparable patterns for M50 grade were noted. Ultimately, geopolymer concrete is a viable, environmentally friendly substitute that has exceptional mechanical qualities like as resilience to chemicals, strength, and durability, which enable it to be used in a variety of settings.
Keywords: Geopolymer Composites; Supplementary Cementitious Ingredients; Geopolymer Properties, Alkaline Activation Solution; CO2 emission.
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Journal of Polymer and Composites
| Volume | |
| Received | May 16, 2024 |
| Accepted | June 16, 2024 |
| Published | July 11, 2024 |
