ArticleScientific reports2025
Evaluation of rice husk biochar influence as a partial cement replacement material on the physical, mechanical, microstructural, and radiation shielding properties of ordinary concrete.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Calcined Bovine-Bone-Derived Ca-P as a Densification Filler for Tungsten/PVC Lead-Free Flexible X-Ray Shielding Sheets.Polymers · 2026Article
- Sustainable Concrete Production Using Granodiorite, Alkali Feldspar Granite, and Mafic Metavolcanic Rock Powders as Supplementary Cementitious Materials.Materials (Basel, Switzerland) · 2026Article
- Mechanical and durability performance of mortar containing biochar derived from pyrolyzed Posidonia oceanica leaves: a circular approach to marine biomass waste.Scientific reports · 2026Article
- The effect of steel waste addition as a cement replacement on the mechanical and radiation shielding properties of sustainable concrete.Scientific reports · 2026Article
- Effect of mineralogical composition on the compressive strength and microstructure of metakaolin geopolymer.Scientific reports · 2026Article
- Rice straw and single-use plastic waste co-pyrolyzed plastic-char composite for the partial replacement of cement in concrete: a life cycle perspective.Scientific reports · 2026Article
- Mechanical properties and chemical synergistic mechanism of lithium slag concrete under mechanical-chemical activation conditions.Scientific reports · 2026Article
- Assessing graphite schist as a supplementary cementitious material in concrete for antifungal activity, strength, hydration, microstructure, and radiation shielding.Scientific reports · 2026Article
- Predicting compressive strength of mortars containing recycled CRT glass using GMDH and GEP methods.Scientific reports · 2026Article
- Experimental and RSM simulation assessment of Gamma-ray shielding efficiency of nano-modified concrete exposed to elevated temperatures.Scientific reports · 2025Article
- Effective of prompt and delayed gamma emission on the nuclear radiation shielding effectiveness of prevalent natural minerals.Scientific reports · 2025Article
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Authors and funding
11 authors.
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Abstract
This study investigated the viability of rice husk-derived biochar (RHB) as a partial substitute for cement in concrete. The used RHB, characterized by a novel chemical composition abundant in silicon and aluminum oxides, was incorporated into ordinary concrete at increasing substitution ratios up to 25% by cement weight. A comprehensive evaluation was conducted to assess the influence of RHB on various properties of concrete, including physical (setting time, standard consistency, workability), mechanical (compressive and tensile strength), microstructural (XRD, and EDX), and radiation shielding characteristics. The results indicated that RHB marginally increased cement setting time, with a maximum 7.14% increase observed at a 25% replacement level. However, it significantly increased water demand for standard consistency, reaching 35.7% at 25% replacement. The increased water demand correlated with a reduction in workability, with a maximum slump reduction rate of 57.3% at a 25% replacement level. The optimal replacement levels for mechanical strength enhancement were at 10% for compressive strength and 15% for tensile strength, achieving improvements of 13.74% and 9.48%, respectively. Additionally, Monte Carlo simulation code and PhyX software were employed for assessing gamma and fast neutron radiation attenuation characteristics of concrete. Gamma-ray attenuation tests revealed moderate improvements in the concrete's gamma-ray shielding capacity. Interestingly, the 15% RHB sample demonstrated a higher linear attenuation compared to the other samples, a result of its increased density. On the contrary, the 25RHB sample is less valuable. The 15RHB sample had the highest value for FCS (0.090 cm
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