PERFORMANCE EVALUATION OF CONCRETE WITH NANO RICE HUSK ASH AS A PARTIAL CEMENT REPLACEMENT
Abstract
This study examines the performance of concrete using Nano Rice Husk Ash (NRHA) as a partial cement replacement. To produce nano-sized particles, NRHA, a byproduct of milling rice, was ball milled for three hours after being carefully burned at 700°C. Using X-ray diffraction (XRD) and X-ray fluorescence (XRF), the chemical characteristics of NRHA were found to be quartz SiO2, which made up 79 mg/cm2 (%) of the sample weight. To assess workability, compressive strength, splitting tensile strength, modulus of elasticity, and Poisson's ratio, laboratory experiments were conducted on concrete mixes made with different NRHA replacement amounts (0%, 5%, 10%, and 15%). The findings showed that 10% NRHA replacement produced NRHA-modified concrete with sufficient mechanical qualities, including tensile and compressive strengths of about 3.20 N and 19.5 N/mm2, respectively. The study verified that FEA provides a trustworthy method for assessing and forecasting concrete performance and that NRHA satisfies the chemical requirements of a Class F pozzolan. By confirming NRHA's efficacy as an additional cementitious ingredient and demonstrating the use of simulation in concrete design optimization, this study advances sustainable construction methods.
KEYWORDS: Concrete, NRHA, Cement, Pozzolana
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